WO2015166665A2

WO2015166665A2 - Injection-molded article for packaging material, injection-molded article for automotive part, industrial film, and food packaging film

Info

Publication number: WO2015166665A2
Application number: PCT/JP2015/004234
Authority: WO
Inventors: Saho Nojiri; Taichi Senda; Kenji Ikeda
Original assignee: Sumitomo Chemical Company, Limited
Priority date: 2015-08-24
Filing date: 2015-08-24
Publication date: 2015-11-05
Also published as: WO2015166665A3

Abstract

The present invention relates to an injection-molded article for a packaging material and an injection-molded article for an automotive part each comprising an olefin resin composition and each being excellent in the balance between rigidity and impact resistance, and a food packaging film and an industrial film each comprising an olefin resin composition and each being excellent in rigidity and impact resistance. Provided is the injection-molded article that comprises an olefin resin composition comprising an olefin resin (A) represented by the following formula (1) or the following formula (2), and an olefin resin (B) represented by the following formula (3) or (4).

Description

INJECTION-MOLDED ARTICLE FOR PACKAGING MATERIAL, INJECTION-MOLDED ARTICLE FOR AUTOMOTIVE PART, INDUSTRIAL FILM, AND FOOD PACKAGING FILM

The present invention relates to an injection-molded article for a packaging material and an injection-molded article for an automotive part each comprising an olefin resin composition and each being excellent in the balance between rigidity and impact resistance, and a food packaging film and an industrial film each comprising an olefin resin composition and each being excellent in rigidity and impact resistance.

Olefin resin compositions are applied to various uses such as automotive uses, food packaging uses, medical uses, optical uses, and electric and electronic uses by being formed into films, containers, etc.
An injection-molded article used for a packaging material such as a container or an automotive part is traditionally required to be excellent in the balance between rigidity and impact resistance, and a film used for industrial uses and food packages is traditionally required to be excellent in rigidity and impact resistance. Various olefin resin compositions have therefore been developed (Patent Documents 1 to 3).

[PTL1] Japanese Laid-Open Patent Publication No. 57-67611
[PTL2] Japanese Laid-Open Patent Publication No. 9-87479
[PTL3] Japanese Laid-Open Patent Publication No. 2001-49012

The injection-molded article comprising the olefin resin composition described in each of Patent Documents is not satisfactory in the balance between rigidity and impact resistance, and the film comprising the olefin resin composition described in each of Patent Documents is also unsatisfactory in rigidity and impact resistance.
An object of the present invention is to provide an injection-molded article for a packaging material and an injection-molded article for an automotive part each comprising an olefin resin composition and each being excellent in the balance between rigidity and impact resistance, and a food packaging film and an industrial film each comprising an olefin resin composition and each being excellent in rigidity and impact resistance.

The present invention is in an aspect thereof an injection-molded article for a packaging material, the article comprising an olefin resin composition comprising an olefin resin (A) represented by the following formula (1) or the following formula (2), and an olefin resin (B) represented by the following formula (3) or (4),

wherein "R¹" in the above formula (1), "R¹" in the above formula (2), and "R²" in the above formula (1) each independently represent a hydrogen atom, a halogen atom, a hydrocarbyl group having 1 to 20 carbon atoms, a hydrocarbyloxy group having 1 to 20 carbon atoms, a hydrocarbyl group having 1 to 20 carbon atoms and being substituted by a halogen atom, or a hydrocarbyloxy group having 1 to 20 carbon atoms and being substituted by a halogen atom;
"X¹" in the above formula (1), "X¹" in the above formula (2), and "X²" in the above formula (2) each independently represent a linking moiety; and
"A¹" in the above formula (1), "A¹" in the above formula (2), and "A²" in the above formula (2) each independently represent a propylene polymer residue, an ethylene-propylene copolymer residue, or an ethylene-1-butene copolymer residue ,

wherein "R³", "R⁴", "R⁵", and "R⁶" in the above formula (3), "R³", "R⁴", "R⁵", and "R⁶" in the above formula (4), and "R⁷" in the above formula (3) each independently represent a hydrogen atom, a halogen atom, a hydrocarbyl group having 1 to 20 carbon atoms, a hydrocarbyloxy group having 1 to 20 carbon atoms, a hydrocarbyl group having 1 to 20 carbon atoms and being substituted by a halogen atom, or a hydrocarbyloxy group having 1 to 20 carbon atoms and being substituted by a halogen atom;
"X³" in the above formula (3), "X³" in the above formula (4), and "X⁴" in the above formula (4) each independently represent a linking moiety; and
"A³" in the above formula (3), "A³" in the above formula (4), and "A⁴" in the above formula (4) each independently represent a propylene polymer residue, an ethylene-propylene copolymer residue, or an ethylene-1-butene copolymer residue.

The present invention is in another aspect thereof an injection-molded article for an automotive part, the article comprising an olefin resin composition comprising an olefin resin (A) represented by the following formula (1) or the following formula (2), and an olefin resin (B) represented by the following formula (3) or (4) ,

wherein "R¹" in the above formula (1), "R¹" in the above formula (2), and "R²" in the above formula (1) each independently represent a hydrogen atom, a halogen atom, a hydrocarbyl group having 1 to 20 carbon atoms, a hydrocarbyloxy group having 1 to 20 carbon atoms, a hydrocarbyl group having 1 to 20 carbon atoms and being substituted by a halogen atom, or a hydrocarbyloxy group having 1 to 20 carbon atoms and being substituted by a halogen atom;
"X¹" in the above formula (1), "X¹" in the above formula (2), and "X²" in the above formula (2) each independently represent a linking moiety; and
"A¹" in the above formula (1), "A¹" in the above formula (2), and "A²" in the above formula (2) each independently represent a propylene polymer residue, an ethylene-propylene copolymer residue, or an ethylene-1-butene copolymer residue,

The present invention is in another aspect thereof an industrial film comprising an olefin resin composition comprising an olefin resin (A) represented by the following formula (1) or the following formula (2), and an olefin resin (B) represented by the following formula (3) or (4),

The present invention is in yet another aspect thereof a food packaging film comprising an olefin resin composition comprising an olefin resin (A) represented by the following formula (1) or the following formula (2), and an olefin resin (B) represented by the following formula (3) or (4) ,

According to the present invention, there can be obtained an injection-molded article for a packaging material and an injection-molded article for an automotive part each comprising an olefin resin composition and each being excellent in the balance between rigidity and impact resistance, and a food packaging film and an industrial film each comprising an olefin resin composition and each being excellent in rigidity and impact resistance.

A "hydrocarbyl group" herein refers to a univalent group formed by removing one hydrogen atom from a hydrocarbon. A "hydrocarbyloxy group" herein refers to a univalent group having a structure formed by substituting a hydrogen atom of a hydroxy group by a hydrocarbyl group. A "hydrocarbyl group substituted by a halogen atom" herein refers to a univalent group having a structure formed by substituting at least one hydrogen atom of a hydrocarbyl group by a halogen atom. A "hydrocarbyloxy group substituted by a halogen atom" herein refers to a univalent group having a structure formed by substituting at least one hydrogen atom of a hydrocarbyloxy group by a halogen atom. A "hydrocarbylene group" herein refers to a divalent group formed by removing two hydrogen atoms from a hydrocarbon.

The olefin resin (A) of the present invention is an olefin resin represented by the following formula (1) or the following formula (2) ,

wherein "R¹" in the above formula (1), "R¹" in the above formula (2), and "R²" in the above formula (1) each independently represent a hydrogen atom, a halogen atom, a hydrocarbyl group having 1 to 20 carbon atoms, a hydrocarbyloxy group having 1 to 20 carbon atoms, a hydrocarbyl group having 1 to 20 carbon atoms and being substituted by a halogen atom, or a hydrocarbyloxy group having 1 to 20 carbon atoms and being substituted by a halogen atom;
"X¹" in the above formula (1), "X¹" in the above formula (2), and "X²" in the above formula (2) each independently represent a linking moiety; and
"A¹" in the above formula (1), "A¹" in the above formula (2), and "A²" in the above formula (2) each independently represent a propylene polymer residue, an ethylene-propylene copolymer residue, or an ethylene-1-butene copolymer residue.

The halogen atom represented by R¹ and R² may be, for example, a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom.

The hydrocarbyl group having 1 to 20 carbon atoms represented by R¹ and R² may be, for example, an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, and an aralkyl group having 7 to 20 carbon atoms.

The alkyl group having 1 to 20 carbon atoms may be a methyl group, an ethyl group, a n-propyl group, an isopropyl group, a n-butyl group, a sec-butyl group, an isobutyl group, a tert-butyl group, a n-pentyl group, a 1-methylbutyl group, a 1,2-dimethylpropyl group, a 2,2-dimethylpropyl group, a n-hexyl group, a 1-ethylpentyl group, a 2-ethylpentyl group, a n-octyl group, and a n-dodecyl group and, preferably, is a methyl group.
The cycloalkyl group having 3 to 20 carbon atoms may be a cyclopentyl group and a cyclohexyl group, and, preferably, is a cyclohexyl group.
The aryl group having 6 to 20 carbon atoms may be a phenyl group, a tolyl group, an ethylphenyl group, and a xylyl group.
The aralkyl group having 7 to 20 carbon atoms may be a benzyl group and a phenethyl group.

The hydrocarbyloxy group having 1 to 20 carbon atoms represented by R¹ and R² may be an alkoxy group having 1 to 20 carbon atoms, an aryloxy group having 6 to 20 carbon atoms, and an aralkyloxy group having 7 to 20 carbon atoms.

The alkoxy group having 1 to 20 carbon atoms may be a methoxy group, an ethoxy group, a n-propoxy group, an isopuropoxy group, a n-butoxy group, a sec-butoxy group, a tert-butoxy group, a pentyloxy group, a hexyloxy group, a heptyloxy group, and an octyloxy group.
The aryloxy group having 6 to 20 carbon atoms may be a phenyloxy group, a tolyloxy group, an ethylphenyloxy group, and a xylyloxy group.
The aralkyloxy group having 7 to 20 carbon atoms may be a benzyloxy group and a phenethyloxy group.

For the hydrocarbyl group having 1 to 20 carbon atoms substituted by a halogen atom represented by R¹ and R², the halogen atom may be a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom.
For the hydrocarbyl group having 1 to 20 carbon atoms substituted by a halogen atom that is represented by R¹ and R², examples of the hydrocarbyl group having 1 to 20 carbon atoms are similar to those exemplified for the hydrocarbyl group having 1 to 20 carbon atoms represented by R¹ and R².

For the hydrocarbyloxy group having 1 to 20 carbon atoms substituted by a halogen atom that is represented by R¹ and R², the halogen atom may be a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom.
For the hydrocarbyloxy group having 1 to 20 carbon atoms substituted by a halogen atom that is represented by R¹ and R², examples of the hydrocarbyloxy group having 1 to 20 carbon atoms are similar to those exemplified for the hydrocarbyloxy group having 1 to 20 carbon atoms represented by R¹ and R².

R¹ is, preferably, a hydrocarbyl group having 1 to 20 carbon atoms, is, more preferably, an alkyl group having 1 to 20 carbon atoms or a cycloalkyl group having 3 to 20 carbon atoms, and is, yet more preferably, a methyl group, an isopropyl group, a 1-ethylpentyl group, or a cyclohexyl group.
Preferably, R² is a hydrogen atom.

Preferably, X¹ and X² are each a linking moiety having at least one type of linkage selected from the group having an ether linkage, a thioether linkage, an ester linkage, a thioester linkage, an amide linkage, a thioamide linkage, an imide linkage, a urea linkage, a thiourea linkage, a urethane linkage, and a thiourethane linkage.
X¹ and X² in the above formula (2) may be linking moieties having the same structure or may be linking moieties each having a structure different from that of each other.

Preferably, X¹ is a linking moiety represented by the following formula (5) ,

in the above formula (5),
"R⁸" represents a hydrocarbylene group having 1 to 20 carbon atoms,
"Y¹" represents an ether linkage, a thioether linkage, an ester linkage, a thioester linkage, an amide linkage, a thioamide inkage, an imide linkage, a urea linkage, a thiourea linkage, a urethane linkage, a thiourethane linkage, a linkage represented by the following formula (6), or a linkage expressed in the following formula (7) (the linkage expressed in the following formula (6) and the linkage expressed in the following formula (7) are each attached to D¹ in the above formula (5) at *³ in the following formula (6) and *³ in the following formula (7), and are each attached to R⁸ in the above formula (5) at *⁴ in the following formula (6) and *⁴ in the following formula (7)),
"n" represents zero or one, and
"D¹" represents a hydrocarbylene group having 1 to 20 carbon atoms or a group represented by the following formula (8),
the linking moiety represented by the above formula (5) is attached to A¹ in the above formula (1) or A¹ in the above formula (2) at *¹ in the formula (5) and is attached to a nitrogen atom in the above formula (1) or a nitrogen atom in the above formula (2) at *² in the above formula (5),

in the above formula (8),
"l" represents an integer equal to or greater than zero and equal to or smaller than 20,
"Y" represents an ether linkage, a thioether linkage, an ester linkage, a thioester linkage, an amide linkage, a thioamide linkage, an imide linkage, a urea linkage, a thiourea linkage, a urethane linkage, a thiourethane linkage, a linkage represented by the following formula (9), or a linkage represented by the following formula (10) (the linkage represented by the following formula (9) and the linkage represented by the following formula (10) are each attached to CH₂ in the above formula (8) at *⁷ in the following formula (9) and *⁷ in the following formula (10), and are each attached to R⁹ in the above formula (8) at *⁸ in the following formula (9) and *⁸ in the following formula (10)), and
"R⁹" represents a hydrocarbylene group having 1 to 20 carbon atoms,
the group represented by the formula (8) is attached to A¹ in the above formula (1) or A¹ in the above formula (2) at *⁵ in the above formula (8) and is attached to Y¹ in the above formula (5) at *⁶ in the above formula (8).

The hydrocarbylene group having 1 to 20 carbon atoms represented by R⁸, R⁹, and D¹ may be an alkylene group, an alkenediyl group, an arylene group, and a group having an arylene group bonding to an alkylene group (hereinafter, may be referred to as "arylene-alkylene group"). The alkylene group may be a methylene group, an ethylene group, a propylene group, a 1-methylethylene group, a tetramethylene group, a pentamethylene group, a hexamethylene group, a heptamethylene group, an octamethylene group, a 2,2,4-trimethylhexane-1,6-diyl group, a group represented by the following formula (a), and a group represented by the following formula (c). The alkenediyl group may be a propenylene group, a 3-methylpropenylene group, a 3,3-dimethylpropenylene group, and a propa-1-en-2,3-diyl group. The arylene group may be a phenylene group, a naphthylene group, and a biphenylene group. The arylene-alkylene group may be a phenylene-alkylene group, a naphthylene-alkylene group, a biphenylene-alkylene group, and a group represented by the following formula (b).

R⁸ is, preferably, an alkylene group or an arylene-aklylene group and is, more preferably, a hexamethylene group, the group represented by the above formula (a), the group represented by the above formula (b), or the group represented by the above formula (c).
R⁹ is, preferably, an alkylene group and is, more preferably, a propylene group.
D¹ is, preferably, an alkylene group or an alkenediyl group and is, more preferably, a methylene group, a propenylene group, a 3-methylpropenylene group, a 3,3-dimethylpropenylene group, or a propa-1-en-2,3-diyl group.

Preferably, X² is the linkage represented by the following formula (11),

in the above formula (11),
"R¹¹" and "R¹⁰" each independently represent a hydrocarbylene group having 1 to 20 carbon atoms,
"Y²" and "Y³" each independently represent an ether linkage, a thioether linkage, an ester linkage, a thioester linkage, an amide linkage, a thioamide linkage, an imide linkage, a urea linkage, a thiourea linkage, a urethane linkage, a thiourethane linkage, the linkage represented by the following formula (12), or the linkage represented by the following formula (13) (when Y² is the linkage represented by the following formula (12) or the linkage represented by the following formula (13), this linkage is attached to D² in the above formula (11) at *¹¹ in the following formula (12) and *¹¹ in the following formula (13), and is attached to R¹⁰ in the above formula (11) at *¹² in the following formula (12) and *¹² in the following formula (13) and, when Y³ is the linkage represented by the following formula (12) or the linkage represented by the following formula (13), this linkage is attached to R¹⁰ in the above formula (11) at *¹¹ in the following formula (12) and *¹¹ in the following formula (13), and is attached to R¹¹ in the above formula (11) at *¹² in the following formula (12) and *¹² in the following formula (13)),
"m" represents one or zero, and
"D²" represents a hydrocarbylene group having 1 to 20 carbon atoms or a group represented by the following formula (14).
The linking moiety represented by the above formula (11) is attached to a carbon atom in the above formula (2) at *⁹ in the above formula (11) and is attached to A² in the above formula (2) at *¹⁰ in the above formula (11),

in the above formula (14),
"o" represents an integer equal to or greater than zero and equal to or smaller than 20,
"Y'" represents an ether linkage, a thioether linkage, an ester linkage, a thioester linkage, an amide linkage, a thioamide linkage, an imide linkage, a urea linkage, a thiourea linkage, a urethane linkage, a thiourethane linkage, the linkage represented by the following formula (15), or the linkage represented by the following formula (16) (the linkage represented by the following formula (15) and the linkage represented by the following formula (16) are each attached to CH₂ in the above formula (14) at *¹⁵ in the following formula (15) and *¹⁵ in the following formula (16) and are attached to R¹²in the above formula (14) at *¹⁶ in the following formula (15) and the following formula (16)),
"R¹²" represents a hydrocarbylene group having 1 to 20 carbon atoms , and
the group represented by the above formula (14) is attached to A² in the above formula (1) or A² in the above formula (2) at *¹⁴ in the above formula (14) and is attached to Y² in the above formula (11) at *¹³ in the above formula (14).)

The hydrocarbylene group having 1 to 20 carbon atoms represented by R¹⁰, R¹¹, R¹², and D² may be an alkylene group, an alkenediyl group, an arylene group, and a group including an arylene group bonding to an alkylene group (hereinafter, may be referred to as "arylene-alkylene group"). The alkylene group may be a methylene group, an ethylene group, a propylene group, a 1-methylethylene group, a tetramethylene group, a pentamethylene group, a hexamethylene group, a heptamethylene group, an octamethylene group, a 2,2,4-trimethylhexane-1,6-diyl group, the group represented by the above formula (a), and the group represented by the above formula (c). The alkenediyl group may be a propenylene group, a 3-methylpropenylene group, a 3,3-dimethylpropenylene group, a propa-1-ene-2,3-diyl group, and a pentane-2-ene-1.5-diyl group. The arylene group may be a phenylene group, a naphthylene group, and a biphenylene group. The arylene-alkylene group may be a phenylene-alkylene group, a naphthylene-alkylene group, a biphenylene-alkylene group, and the group represented by the above formula (b).

R¹⁰ is, preferably, a hexamethylene group, the group represented by the above formula (a), the group represented by the above formula (b), or the group represented by the above formula (c).
R¹¹ is, preferably, an alkylene group and is, more preferably, an ethylene group.
R¹² is, preferably, an alkylene group and is, more preferably, a propylene group. D² is, preferably, an alkylene group or an alkenediyl group and is, more preferably, a methylene group, a propenylene group, a 3-methylpropenylene group, a 3,3-dimethylpropenylene group, or a propa-1-ene-2,3-diyl group.

A¹ and A² are each a propylene polymer residue, an ethylene-propylene copolymer residue, or an ethylene-1-butene copolymer residue. The "polymer residue" means a moiety formed by removing one or two hydrogen atom(s) from a mother polymer.
The propylene polymer residue represented by A¹ and A² may be, for example, a propylene homopolymer residue, and a residue of a propylene-α-olefin copolymer that includes a monomer unit originated from propylene and a monomer unit originated from at least one selected from the group including α-olefins each including four or more carbon atoms.
A¹ and A² in the above formula (2) may have the same structure or may each have a structure different from that of each other.

In the ethylene-propylene copolymer residue, the monomer unit originated from ethylene is, preferably, 1% by weight to 95% by weight and is, more preferably, 5% by weight to 90% by weight, and the monomer unit originated from propylene is 5% by weight to 99% by weight and is, more preferably, 10% by weight to 95% by weight. It is assumed that the total amount of the ethylene-propylene copolymer is 100% by weight.

In the ethylene-1-butene copolymer residue, the monomer unit originated from ethylene is, preferably, 5% by weight to 95% by weight and is, more preferably, 10% by weight to 90% by weight, and the monomer unit originated from 1-butene is 5% by weight to 95% by weight and is, more preferably, 10% by weight to 90% by weight, It is assumed that the total amount of the ethylene-1-butene copolymer is 100% by weight.

The olefin resin (A) of the present invention includes the group represented by the following formula (A) or the following formula (B) and hydrogen bonds can therefore be formed between the molecules or in the molecule,

wherein "R¹" in the above formula (A) is synonymous with R¹ in the above formula (1), and "R¹" and "R²" in the above formula (B) are synonymous with R¹ and R² in the above formula (2) , and
the group represented by the above formula (A) is attached to X¹ in the above formula (1) at * in the formula (A), and the group represented by the above formula (B) is attached to X¹ in the above formula (2) at * in the above formula (B) and is attached to X² in the above formula (2) at ** in the above formula (B).

Preferably, the olefin resin (A) of the present invention is the olefin resin represented by the above formula (1).

The weight-average molecular weight (Mw) of the olefin resin (A) of the present invention is, preferably, equal to or larger than 500 and is, more preferably, equal to or larger than 1,000 in order to improve the balance between the rigidity and the impact resistance of an injection-molded article for a packaging material and an injection-molded article for an automotive part and in order to improve the rigidity and the impact resistance of an industrial film and a food packaging film.
The molecular weight distribution (Mw/Mn) of the olefin resin (A) of the present invention is, preferably, 1 to 8 and is, more preferably, 1.5 to 7 in order to improve the balance between the rigidity and the impact resistance of an injection-molded article for a packaging material and an injection-molded article for an automotive part and in order to improve the rigidity and the impact resistance of an industrial film and a food packaging film.
The weight-average molecular weight (Mw) and the molecular weight distribution (Mw/Mn) of the olefin resin (A) of the present invention can be adjusted by adjusting the weight-average molecular weight (Mw) and the molecular weight distribution (Mw/Mn) of an olefin polymer that is the raw material thereof.

The weight-average molecular weight (Mw) and the molecular weight distribution (Mw/Mn) of the olefin resin (A) of the present invention are measured using a gel permeation chromatography under the following conditions.
<Measurement Conditions>
Instrument Model: 150C (manufactured by Waters Corporation)
Column: TSK-GEL GMH6-HT, 7.5 mm (diameter)×300 mm (length)×three pieces
Measurement Temperature: 140°C
Solvent: Orthodichlorobenzene
Measurement Concentration: 5 mg/5 ml

The production method of the olefin resin (A) of the present invention may be a method according to which a modified olefin polymer (A) and a compound represented by the following formula (17) or the following formula (18) are melted and kneaded with each other, and a method according to which the modified olefin polymer (A) and a compound represented by the following formula (17) or the following formula (18) are mixed with each other in a solvent,

wherein "Z¹" and "Z²" in the above formula (17) and "Z¹" and "Z²" in the above formula (18) each independently represent a halogen atom, a hydroxyl group, a thiol group, a group represented by -CO-O-CO-, a group represented by -CO-S-CO-, a group represented by -CO-X ("X" represents a fluorine atom, a chlorine atom, a bromine atom, or an iodine atom), a carboxy group, a thiocarboxy group, a formyl group, a thioformyl group, a carbonyl group, a thiocarbonyl group, an amino group, an imino group, a nitro group, a group represented by RCONH-, a group represented by RCSNH-, a group represented by RCO(NR)CO-, a group represented by -COOR, a group represented by -COSR, a group represented by -CSOR, a group represented by -OR, a group represented by -SR (any "R" represents a hydrocalbyl group), an epoxy group, a thioepoxy group, an isocyanate group, an isothiocyanate group, or an azi group.

A kneader used for the melting and the kneading may be any known apparatus such as a Banbury mixer, a plast mill, a Brabender plastgraph, a one-screw extruder, or a two-screw extruder. The set temperature of the kneader during the melting and the kneading is, preferably, a temperature of 60°C to 250°C, is, more preferably, 60°C to 230°C, and is, yet more preferably, 60°C to 210°C. The temperature during the mixing in a solvent is, preferably, a temperature of 0°C to 250°C, is, more preferably, 0°C to 230°C, and is, yet more preferably, 0°C to 200°C. The solvent used for the mixing in a solvent may be toluene, xylene, 1,2-dichlorobenzene, n-octylbenzene, tetralin, decane, decalin, 1,2-dichloroethane, 1,1,2,2-tetrachloroethane, chloroform, and tetrahydrofuran.

The modified olefin polymer (A) is an olefin polymer that includes at least one reaction site capable of reacting with the compound represented by the above formula (17) or the above formula (18). The reaction site capable of reacting with the compound represented by the above formula (17) or the above formula (18) may be a halogen atom, a hydroxyl group, a thiol group, a group represented by -CO-O-CO-, a group represented by -CO-S-CO-, a group represented by -CO-X (wherein "X" represents a fluorine atom, a chlorine atom, a bromine atom, or an iodine atom), a carboxy group, a thiocarboxy group, a formyl group, a thioformyl group, a carbonyl group, a thiocarbonyl group, an amino group, an imino group, a nitro group, a group represented by RCONH-, a group represented by RCSNH-, a group represented by RCO(NR)CO-, a group represented by -COOR, a group represented by -COSR, a group represented by -CSOR, a group represented by -OR, a group represented by -SR (wherein any "R" represents a hydrocalbyl group), an epoxy group, a thioepoxy group, an isocyanate group, an isothiocyanate group, or an azi group.

The production method of the modified olefin polymer (A) may be, for example, a method of reacting an olefin polymer including a carbon-carbon double bond at least at one end thereof and an organic compound into which the reaction site can be introduced, with each other, a method of copolymerizing a compound including a functional group or a linkage that includes an atom having electronegativity different from that of a carbon atom and a carbon-carbon double bond (hereinafter, referred to as "compound A") and olefin with each other, a method of reacting a compound acquired by copolymerizing the compound A and olefin with each other, and an organic compound into which the reaction site can be introduced, with each other, a method of reacting an olefin polymer and the compound A, and a method of reacting an olefin polymer and the compound A with each other and reacting thereafter the acquired compound and an organic compound into which the reaction site can be introduced, with each other.

The weight-average molecular weight (Mw) of the olefin polymer including a carbon-carbon double bond at least at one end thereof is, preferably, equal to or larger than 500 and is, more preferably, equal to or larger than 1,000 in order to improve the balance between the rigidity and the impact resistance of an injection-molded article for a packaging material and an injection-molded article for an automotive part and in order to improve the rigidity and the impact resistance of an industrial film and a food packaging film.
The molecular weight distribution (Mw/Mn) of the olefin polymer including a carbon-carbon double bond at least at one end thereof is, preferably, 1 to 8 and is, more preferably, 1.5 to 7 in order to improve the balance between the rigidity and the impact resistance of an injection-molded article for a packaging material and an injection-molded article for an automotive part and in order to improve the rigidity and the impact resistance of an industrial film and a food packaging film.

The weight-average molecular weight (Mw) and the molecular weight distribution (Mw/Mn) of the olefin polymer including a carbon-carbon double bond at least at one end thereof are values that are acquired by measurement these using a gel permeation chromatography under the following conditions.
<Measurement Conditions>
Instrument Model: 150C (manufactured by Waters Corporation)
Column: TSK-GEL GMH6-HT, 7.5 mm (diameter)×300 mm (length)×three pieces
Measurement Temperature: 140°C
Solvent: Orthodichlorobenzene
Measurement Concentration: 5 mg/5 ml

The olefin polymer including a carbon-carbon double bond at least at one end thereof can be produced using the following method.
[1] A method of polymerizing olefin in the presence of a metallocene catalyst
[2] A method of introducing a double bond to an end of the olefin polymer using a pyrolytic reaction or a radical decomposition reaction

For the method of polymerizing olefin in the presence of a metallocene catalyst, the metallocene catalyst may be, for example, a catalyst described in Japanese Laid-Open Patent Publication No. 2001-525461 and that described in Japanese Laid-Open Patent Publication No. 2009-299045. Olefin to be used may be a combination of at least one selected from the group including ethylene and α-olefins each including four or more carbon atoms, and propylene, a combination of ethylene and 1-butene, and propylene.

The method of introducing a carbon-carbon double bond to at least one end of an olefin polymer using a pyrolytic reaction may be a method of heating and melting the olefin polymer. For example, a method according to which a reaction container such as the one made from stainless steel including a stirrer is filled with an inert gas such as nitrogen or argon, and the olefin polymer is thereafter added thereto to be heated and melted.

The radical decomposition reaction is a reaction that is caused to occur by heating a mixture of an organic peroxide and the olefin polymer at a temperature of 160°C to 300°C.
The method of introducing a carbon-carbon double bond to at least one end of the olefin polymer using a radical decomposition reaction may be a batch method or a continuous melt method.

The method of introducing a carbon-carbon double bond to at least one end of the olefin polymer using a batch method may be, for example, a method according to which a reaction container such as the one made from stainless steel including a stirrer is filled with an inert gas such as nitrogen or argon, the olefin polymer is added thereto to be heated and melted, and an organic peroxide is added to the melted olefin polymer to be heated for a predetermined time period. The organic peroxide and the olefin polymer may each be dissolved in a solvent to be used. The solvent may be toluene, xylene, 1,2-dichlorobenzene, n-octylbenzene, tetralin, decane, decalin, 1,2-dichloroethane, 1,1,2,2-tetrachloroethane, chloroform, and tetrahydrofuran.

The method of introducing a carbon-carbon double bond to at least one end of the olefin polymer using a continuous melt method may be, for example, a method of impregnating the organic peroxide with the olefin polymer, and a method of mixing the olefin polymer and the organic peroxide with each other. The apparatus to be used therefor may be a one-screw extruder or a two-screw extruder.

The functional group or the linkage including an atom having electronegativity different from that of a carbon atom in the compound A may be a halogen atom, a hydroxyl group, a thiol group, an alkoxy group, a group represented by -CO-O-CO, a group represented by -CO-S-CO, a group represented by -CO-X ("X" represents a fluorine atom, a chlorine atom, a bromine atom, or an iodine atom), a carboxy group, a thiocarboxy group, a formyl group, a thioformyl group, a carbonyl group, a thiocarbonyl group, an amino group, an imino group, an amide linkage, a thioamide linkage, an imide linkage, a nitro group, an ester linkage, a thioester linkage, a cyano group, an isocyano group, an ether linkage, a thioether linkage, an epoxy group, a thioepoxy group, an isocyanate group, an isothiocyanate group, an azi group, a silyl group, an alkylsilyl group, an alkoxysilyl group, a nitroso group, a hydrazide group, an oxime group, and a sulfide group. Such substances may be exemplified as the compound A, as unsaturated carboxylic acids such as maleic acid, fumaric acid, and itaconic acid, unsaturated carboxylic acid derivatives such as maleic acid anhydride, itaconic acid anhydride, maleimide, maleic hydrazide, methylnadic acid anhydride, dichloromaleic acid anhydride, and amide maleate, and unsaturated epoxy compounds such as glycidylacrylate, glycidylmethacrylate, 2-hydroxyethylacrylate, 2-hydroxyethylmethacrylate, and allylglycidyl ether.

The method of reacting the olefin polymer and the compound A with each other may be, for example, a method of reacting the olefin polymer, the compound A, and the organic peroxide with each other.

The method of reacting the olefin polymer, the compound A, and the organic peroxide with each other may be a method of melting and kneading the olefin polymer, the compound A, and the organic peroxide with each other, and a method of mixing the olefin polymer, the compound A, and the organic peroxide with each other in a solvent. The kneader used for the melting and the kneading may be any known apparatus such as a Banbury mixer, a plast mill, a Brabender plastgraph, a one-screw extruder, or a two-screw extruder. The solvent used for the mixing in a solvent may be toluene, xylene, 1,2-dichlorobenzene, n-octylbenzene, tetralin, decane, decalin, 1,2-dichloroethane, 1,1,2,2-tetrachloroethane, chloroform, and tetrahydrofuran.

The olefin polymer used in producing the olefin polymer including a carbon-carbon bond at least at one end thereof, or the olefin polymer used in reacting the olefin polymer and the compound A with each other may be a propylene polymer, an ethylene-propylene copolymer, or an ethylene-1-butene copolymer.
The propylene polymer may be, for example, a propylene homopolymer, and a propylene-copolymer including a monomer unit originated from propylene and a monomer unit originated from at least one selected from the group including α-olefins each including four or more carbon atoms.
The monomer unit originated from ethylene in the ethylene-propylene copolymer is, preferably, 1% by weight to 95% by weight and is, more preferably, 5% by weight to 90% by weight. The monomer unit originated from propylene is 5% by weight to 99% by weight and is, more preferably, 10% by weight to 95% by weight. It is assumed that the total amount of the ethylene-propylene copolymer is 100% by weight.
The monomer unit originated from ethylene in the ethylene-1-butene copolymer is, preferably, 5% by weight to 95% by weight and is, more preferably, 10% by weight to 90% by weight. The monomer unit originated from 1-butene is 5% by weight to 95% by weight and is, more preferably, 10% by weight to 90% by weight. It is assumed that the total amount of the ethylene-1-butene copolymer is 100% by weight.

The polymerization catalyst used in producing the olefin polymer can be, for example, a Ziegler-type catalyst system, a Ziegler-Natta-type catalyst system, a metallocene catalyst system that includes a compound of a transition metal in the fourth group of the periodic table including a cyclopentadienyl ring (a metallocene compound) and alkylalminoxan, a catalyst system that includes a compound of a transition metal in the fourth group of the periodic table including a cyclopentadienyl ring, a compound forming an ionic complex by reacting with the compound of the transition metal, and an organic aluminum compound, and a supported metallocene catalyst system whose inorganic particles such as silica or a clay mineral support the catalyst components such as a compound of a transition metal in the fourth group of the periodic table including a cyclopentadienyl ring, a compound forming an ionic complex by reacting with the compound of the transition metal, and an organic aluminum compound. An auxiliary polymerization catalyst may be used in the presence of any of the above catalyst systems. The auxiliary polymerization catalyst may be, for example, the catalyst systems described in Japanese Laid-Open Patent Publication Nos. 61-218606, 5-194685, 7-216017, 9-316147, 10-212319, and 2004-182981.

The production method of the olefin polymer may be, for example, bulk polymerization, solution polymerization, slurry polymerization, or gas phase polymerization. A solvent used in the solution polymerization and the slurry polymerization may be an inert hydrocarbon such as propane, butane, isobutane, pentane, hexane, heptane, or decane. These polymerization methods may be executed in either the batch system or the continuous system, and some of these polymerization methods may be combined with each other. Preferably, a continuous gas phase polymerization method, or a bulk-gas phase polymerization method of continuously executing the bulk polymerization method and the gas phase polymerization method is used.

In the production of the olefin polymer, the olefin polymer may be dried at a temperature lower than the melting temperature of the olefin polymer to remove any residual solvent included in the olefin polymer, oligomers each having an ultra-low molecular weight and each formed as a by-product during the production. The method of drying the olefin polymer may be, for example, the methods described in Japanese Laid-Open Patent Publication No. 55-75410 and Japanese Patent Publication No. 2565753.

The compound represented by the above formula (17) is, preferably, a compound represented by the following formula (17a) and is, more preferably, a compound represented by the following formula (17b) or the following formula (17c),

wherein "Z³" in the above formula (17a) represents a halogen atom, a hydroxyl group, a thiol group, a group represented by -CO-O-CO-, a group represented by -CO-S-CO-, a group represented by -CO-X ("X" represents a fluorine atom, a chlorine atom, a bromine atom, or an iodine atom), a carboxy group, a thiocarboxy group, a formyl group, a thioformyl group, a carbonyl group, a thiocarbonyl group, an amino group, an imino group, a nitro group, a group represented by RCONH-, a group represented by RCSNH-, a group represented by RCO(NR)CO-, a group represented by -COOR, a group represented by -COSR, a group represented by -CSOR, a group represented by -OR, a group represented by -SR (any "R" represents a hydrocalbyl group), an epoxy group, a thioepoxy group, an isocyanate group, an isothiocyanate group, or an azi group. "R¹" and "R²" are synonymous with R¹ and R² in the above formula (1), and "R⁸" is synonymous with R⁸ in the above formula (5) ,

wherein "R¹" and "R²" in the above formula (17b) are synonymous with R¹ and R² in the above formula (1),

wherein "R¹" and "R²" in the above formula (17c) are synonymous with R¹ and R² in the above formula (1).

The compound represented by the above formula (18) is, preferably, the compound represented by the following formula (18a) and is, more preferably, the compound represented by the following formula (18b) or the following formula (18c),

wherein "Z⁴" and "Z⁵" in the above formula (18a) each independently represent a halogen atom, a hydroxyl group, a thiol group, an alkoxy group, a group represented by -CO-O-CO-, a group represented by -CO-S-CO-, a group represented by -CO-X ("X" represents a fluorine atom, a chlorine atom, a bromine atom, or an iodine atom), a carboxy group, a thiocarboxy group, a formyl group, a thioformyl group, a carbonyl group, a thiocarbonyl group, an amino group, an imino group, a nitro group, a group represented by RCONH-, a group represented by RCSNH-, a group represented by RCO(NR)CO-, a group represented by -COOR, a group represented by -COSR, a group represented by -CSOR, a group represented by -OR, a group represented by -SR (any "R" represents a hydrocalbyl group), an epoxy group, a thioepoxy group, an isocyanate group, an isothiocyanate group, or an azi group. "R¹" is synonymous with R¹ in the above formula (2). "R⁸" is synonymous with R⁸ in the above formula (5). "R¹⁰", "R¹¹", and "Y³" are synonymous with R⁶, R¹¹, and Y³ in the above formula (11) ,

wherein "R¹" in the above formula (18b) is synonymous with R¹ in the above formula (2),

wherein "R¹" in the above formula (18c) is synonymous with R¹ in the above formula (2).)

The production method of the compound represented by the above formula (17) or (18) may be, for example, a method described in Japanese Laid-Open Patent Publication No. 2007-522261 or Journal of Applied Polymer Science, Vol. 123, 1755-1763 (2012).

The olefin resin (A) of the present invention is acquired by an addition reaction or a condensation reaction occurring between the modified olefin polymer (A) and the compound represented by the above formula (17) or (18) by the above production method.

The olefin resin (B) of the present invention is the olefin resin represented by the following formula (3) or the following formula (4),

wherein "R³", "R⁴", "R⁵", and "R⁶" in the above formula (3), "R³", "R⁴", "R⁵", and "R⁶" in the above formula (4), and "R⁷" in the above formula (3) each independently represent a hydrogen atom, a halogen atom, a hydrocarbyl group having 1 to 20 carbon atoms, a hydrocarbyloxy group having 1 to 20 carbon atoms, a hydrocarbyl group having 1 to 20 carbon atoms substituted by a halogen atom, or a hydrocarbyloxy group having 1 to 20 carbon atoms substituted by a halogen atom. "X³" in the above formula (3), "X³" in the above formula (4), and "X⁴" in the above formula (4) each independently represent a linking moiety. "A³" in the above formula (3), "A³" in the above formula (4), and "A⁴" in the above formula (4) each independently represent a propylene polymer residue, an ethylene-propylene copolymer residue, or an ethylene-1-butene copolymer residue.

The halogen atom represented by R³, R⁴, R⁵, R⁶, and R⁷ may be a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom.

The hydrocarbyl group having 1 to 20 carbon atoms represented by R³, R⁴, R⁵, R⁶, and R⁷ may be an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, and an aralkyl group having 7 to 20 carbon atoms.

The alkyl group having 1 to 20 carbon atoms may be a methyl group, an ethyl group, a n-propyl group, an isopropyl group, a n-butyl group, a sec-butyl group, an isobutyl group, a tert-butyl group, a n-pentyl group, a 1-methylbutyl group, a 1,2-dimethylpropyl group, a 2,2-dimethylpropyl group, a n-hexyl group, a 1-ethylpentyl group, a 2-ethylpentyl group, a 1-propylbutyl group, a n-octyl group, a 1-ethylhexyl group, a n-undecyl group, and a n-dodecyl group.
The cycloalkyl group having 3 to 20 carbon atoms may be a cyclopentyl group and a cyclohexyl group, and, preferably, is a cyclohexyl group.
The aryl group having 6 to 20 carbon atoms may be a phenyl group, a tolyl group, an ethylphenyl group, and a xylyl group.
The aralkyl group having 7 to 20 carbon atoms may be a benzyl group and a phenethyl group.

The hydrocarbyloxy group having 1 to 20 carbon atoms represented by R³ , R⁴, R⁵, R⁶, and R⁷ may be an alkoxy group having 1 to 20 carbon atoms, an aryloxy group having 6 to 20 carbon atoms, and an aralkyloxy group having 7 to 20 carbon atoms.

For the hydrocarbyl group having 1 to 20 carbon atoms substituted by a halogen atom represented by R³, R⁴, R⁵, R⁶, and R⁷, the halogen atom may be a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom.
For the hydrocarbyl group having 1 to 20 carbon atoms substituted by a halogen atom, represented by R³, R⁴, R⁵, R⁶, and R⁷, examples of the hydrocarbyl group having 1 to 20 carbon atoms are similar to those exemplified for the hydrocarbyl group having 1 to 20 carbon atoms represented by R³, R⁴, R⁵, R⁶, and R⁷.

For the hydrocarbyloxy group having 1 to 20 carbon atoms substituted by a halogen atom, represented by R³, R⁴, R⁵, R⁶, and R⁷, the halogen atom may be a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom.
For the hydrocarbyloxy group having 1 to 20 carbon atoms substituted by a halogen atom, represented by R³, R⁴, R⁵, R⁶, and R⁷, examples of the hydrocarbyloxy group having 1 to 20 carbon atoms are similar to those exemplified for the hydrocarbyloxy group having 1 to 20 carbon atoms represented by R³, R⁴, R⁵, R⁶, and R⁷.

Preferably, R³, R⁴, R⁵, and R⁶ are each a hydrogen atom.
R⁷ is, preferably, a hydrocarbyl group having 1 to 20 carbon atoms, an aryl group, or an aralkyloxy group, is, more preferably, an alkyl group having 1 to 20 carbon atoms, and is, yet more preferably, a methyl group, an isopropyl group, a n-butyl group, a tert-butyl group, a n-hexyl group, a 1-ethylpentyl group, a 1-propylbutyl group, a 1-ethylhexyl group, a n-undecyl group, a phenyl group, or a benzyloxy group.

Preferably, X³ and X⁴ are each a linking moiety having at least one type of linkage selected from the group including an ether linkage, a thioether linkage, an ester linkage, a thioester linkage, an amide linkage, a thioamide linkage, an imide linkage, a urea linkage, a thiourea linkage, a urethane linkage, and a thiourethane linkage.
"X³" and "X⁴" in the above formula (4) may be same linking moieties or may be linking moieties different from each other.

Preferably, X³ and X⁴ are each a linking moiety represented by the following formula (19),

in the above formula (19),
"R¹³" and "R¹⁴" each represent a hydrocarbylene group having 1 to 20 carbon atoms,
"p" represents zero or one,
"Y⁴" represents an ether linkage, a thioether linkage, an ester linkage, a thioester linkage, an amide linkage, a thioamide linkage, an imide linkage, a urea linkage, a thiourea linkage, a urethane linkage, a thiourethane linkage, a linkage represented by the following formula (20), or a linkage represented by the following formula (21) (the linkages represented by the following formula (20) and the linkage represented by the following formula (21) are each attached to R¹³ in the above formula (19) at *¹⁹ in the following formula (20) and *¹⁹ in the following formula (21), and are each attached to R¹⁴ in the above formula (19) at *²⁰ in the following formula (20) and *²⁰ in the following formula (21)), and
the linking moiety represented by the above formula (19) is attached to A³ in the above formula (3) or A³ in the above formula (4), or A⁴ in the above formula (4) at *¹⁷ in the formula (19) and is attached to a carbon atom in the above formula (3) or a carbon atom in the above formula (4) at *¹⁸ in the above formula (19).

The hydrocarbylene group having 1 to 20 carbon atoms represented by R¹³ and R¹⁴ may be an alkylene group, an alkenediyl group, an arylene group, and a group including an arylene group bonding to an alkylene group (hereinafter, may be referred to as "arylene-alkylene group"). The alkylene group may be a methylene group, an ethylene group, an ethylidene group, a propylene group, a 1-methylethylene group, a tetramethylene group, a pentamethylene group, a hexamethylene group, a heptamethylene group, an octamethylene group, and a 1-methylenecyclohexane-1,4-diyl group. The alkenediyl group may be a propenylene group, a 3-methylpropenylene group, a 3,3-dimethylpropenylene group, and a propa-1-ene-2,3-diyl group. The arylene group may be a phenylene group, a naphthylene group, and a biphenylene group. The arylene-alkylene group may be a phenylene-alkylene group, a naphthylene-alkylene group, and a biphenylene-alkylene group.

"R¹³" is, preferably, an alkenediyl group and is, more preferably, a propenylene group, a 3-methylpropenylene group, a 3,3-dimethylpropenylene group, or a propa-1-ene-2,3-diyl group.
"R¹⁴" is, preferably, an alkylene group and is, more preferably, a methylene group, an ethylidene group, or a 1-methylenecyclohexane-1,4-diyl group.

A³ and A⁴ are each a propylene polymer residue, an ethylene-propylene copolymer residue, or an ethylene-1-butene copolymer residue.
The propylene polymer residue represented by A³ and A⁴ may be a propylene homopolymer residue, and a residue of a propylene-α-olefin copolymer that includes a monomer unit originated from propylene and a monomer unit originated from at least one selected from the group including α-olefins each having four or more carbon atoms.
A³ and A⁴ in the above formula (2) may be same or may be different from each other.

The olefin resin (B) of the present invention includes a group represented by the following formula (C) and hydrogen bonds can therefore be formed between the group represented by the above formula (A) or the above formula (B), and the molecule,

wherein "R³", "R⁴", "R⁵", and "R⁶" in the above formula (C) are synonymous with R³, R⁴, R⁵, and R⁶ in the above formula (3) or the above formula (4), and
the group represented by the above formula (C) is attached to a carbon atom in the above formula (3) or a carbon atom in the above formula (4) at *** in the formula (C).

The weight-average molecular weight (Mw) of the olefin resin (B) of the present invention is, preferably, equal to or larger than 500 and is, more preferably, equal to or larger than 1,000 in order to improve the balance between the rigidity and the impact resistance of an injection-molded article for a packaging material and an injection-molded article for an automotive part and in order to improve the rigidity and the impact resistance of an industrial film and a food packaging film.
The molecular weight distribution (Mw/Mn) of the olefin resin (B) of the present invention is, preferably, 1 to 8 and is, more preferably, 1.5 to 7 to in order to improve the balance between the rigidity and the impact resistance of an injection-molded article for a packaging material and an injection-molded article for an automotive part and in order to improve the rigidity and the impact resistance of an industrial film and a food packaging film.
The weight-average molecular weight (Mw) and the molecular weight distribution (Mw/Mn) of the olefin resin (B) of the present invention can be adjusted by adjusting the weight-average molecular weight (Mw) and the molecular weight distribution (Mw/Mn) of an olefin polymer that is the raw material thereof.

The weight-average molecular weight (Mw) and the molecular weight distribution (Mw/Mn) of the olefin resin (B) of the present invention are measured using a gel permeation chromatography under the following conditions.
<Measurement Conditions>
Instrument Model: 150C (manufactured by Waters Corporation)
Column: TSK-GEL GMH6-HT, 7.5 mm (diameter)×300 mm (length)×three pieces
Measurement Temperature: 140°C
Solvent: Orthodichlorobenzene
Measurement Concentration: 5 mg/5 ml

The production method of the olefin resin (B) of the present invention may be a method of melting and kneading the modified olefin polymer (B) and a compound represented by the following formula (22) or the following formula (23) with each other, and a method of mixing the modified olefin polymer (B) and the compound represented by the following formula (22) or the following formula (23) with each other in a solvent,

wherein "Z⁶" and "Z⁷" in the above formula (22) and "Z⁶" and "Z⁷" in the above formula (23) each independently represent a halogen atom, a hydroxyl group, a thiol group, a group represented by -CO-O-CO-, a group represented by -CO-S-CO-, a group represented by -CO-X ("X" represents a fluorine atom, a chlorine atom, a bromine atom, or an iodine atom), a carboxy group, a thiocarboxy group, a formyl group, a thioformyl group, a carbonyl group, a thiocarbonyl group, an amino group, an imino group, a nitro group, a group represented by RCONH-, a group represented by RCSNH-, a group represented by RCO(NR)CO-, a group represented by -COOR, a group represented by -COSR, a group represented by -CSOR, a group represented by -OR, a group represented by -SR (any "R" represents a hydrocalbyl group), an epoxy group, a thioepoxy group, an isocyanate group, an isothiocyanate group, or an azi group.

A kneader used for the melting and the kneading may be any known apparatus such as a Banbury mixer, a plast mill, a Brabender plastgraph, a one-screw extruder, or a two-screw extruder. The set temperature of the kneader during the melting and the kneading is, preferably, a temperature of 60°C to 250°C, is, more preferably, 60°C to 230°C, and is, yet more preferably, 60°C to 210°C. The temperature for the mixing in a solvent is, preferably, a temperature of 0°C to 250°C, is, more preferably, 0°C to 230°C, and is, yet more preferably, 0°C to 200°C. The solvent used for the mixing in a solvent may be toluene, xylene, 1,2-dichlorobenzene, n-octylbenzene, tetralin, decane, decalin, 1,2-dichloroethane, 1,1,2,2-tetrachloroethane, chloroform, and tetrahydrofuran.

The modified olefin polymer (B) is an olefin polymer that includes at least one reaction site capable of reacting with the compound represented by the above formula (22) or the above formula (23). The reaction site capable of reacting with the compound represented by the above formula (22) or the above formula (23) may be a halogen atom, a hydroxyl group, a thiol group, a group represented by -CO-O-CO-, a group represented by -CO-S-CO-, a group represented by -CO-X (“X” represents a fluorine atom, a chlorine atom, a bromine atom, or an iodine atom), a carboxy group, a thiocarboxy group, a formyl group, a thioformyl group, a carbonyl group, a thiocarbonyl group, an amino group, an imino group, a nitro group, a group represented by RCONH-, a group represented by RCSNH-, a group represented by RCO(NR)CO-, a group represented by -COOR, a group represented by -COSR, a group represented by -CSOR, a group represented by -OR, a group represented by -SR (any “R” represents a hydrocalbyl group), an epoxy group, a thioepoxy group, an isocyanate group, an isothiocyanate group, or an azi group.
Examples of the modified olefin polymer (B) are similar to the examples of the modified olefin polymer (A). The production method of the modified olefin polymer (B) is similar to the examples of the production method of the modified olefin polymer (A).

The compound represented by the above formula (22) is, preferably, the compound represented by the following formula (22a) and is, more preferably, the compound represented by the following formula (22b),

wherein "Z⁸" in the above formula (22a) represents a halogen atom, a hydroxyl group, a thiol group, a group represented by -CO-O-CO-, a group represented by -CO-S-CO-, a group represented by -CO-X (“X” represents a fluorine atom, a chlorine atom, a bromine atom, or an iodine atom), a carboxy group, a thiocarboxy group, a formyl group, a thioformyl group, a carbonyl group, a thiocarbonyl group, an amino group, an imino group, a nitro group, a group represented by RCONH-, a group represented by RCSNH-, a group represented by RCO(NR)CO-, a group represented by -COOR, a group represented by -COSR, a group represented by -CSOR, a group represented by -OR, a group represented by -SR (any “R” represents a hydrocalbyl group), an epoxy group, a thioepoxy group, an isocyanate group, an isothiocyanate group, or an azi group. "R³", "R⁴", "R⁵", "R⁶", and "R⁷" are synonymous with "R³", "R⁴", "R⁵", "R⁶", and "R⁷" in the above formula (3). "R¹⁴" is synonymous with R¹⁴ in the above formula (19),

wherein "R³", "R⁴", "R⁵", and "R⁶" in the above formula (22b) are synonymous with "R³", "R⁴", "R⁵", and "R⁶" in the above formula (3).

The compound represented by the above formula (23) is, preferably, the compound represented by the following formula (23a) and is, more preferably, the compound represented by the following formula (23b),

wherein "Z⁹" and "Z¹⁰" in the above formula (23a) each independently represent a halogen atom, a hydroxyl group, a thiol group, a group represented by -CO-O-CO-, a group represented by -CO-S-CO-, a group represented by -CO-X (“X” represents a fluorine atom, a chlorine atom, a bromine atom, or an iodine atom), a carboxy group, a thiocarboxy group, a formyl group, a thioformyl group, a carbonyl group, a thiocarbonyl group, an amino group, an imino group, a nitro group, a group represented by RCONH-, a group represented by RCSNH-, a group represented by RCO(NR)CO-, a group represented by -COOR, a group represented by -COSR, a group represented by -CSOR, a group represented by -OR, a group represented by -SR (any “R” represents a hydrocalbyl group), an epoxy group, a thioepoxy group, an isocyanate group, an isothiocyanate group, or an azi group, "R³", "R⁴", "R⁵", and "R⁶" are synonymous with "R³", "R⁴", "R⁵", and "R⁶" in the above formula (4), "R¹⁴" is synonymous with R¹⁴ in the above formula (19),

wherein "R³", "R⁴", "R⁵", and "R⁶" in the above formula (23b) are synonymous with "R³", "R⁴", "R⁵", and "R⁶" in the above formula (4).

The production method of the compound represented by the above formula (22) or (23) may be, for example, the method described in J. Org. Chem. 2006, 71, 375-378.

The olefin resin (B) of the present invention is acquired by an addition reaction or a condensation reaction occurring between the modified olefin polymer (B) and the compound represented by the above formula (22) or (23) by the above production method.

The olefin resin composition of the present invention is a resin composition comprising the olefin resin (A) and the olefin resin (B).
The content of the olefin resin (A) included in the olefin resin composition of the present invention is 1% by weight to 99% by weight and is, preferably, 5% by weight to 95% by weight. The content of the olefin resin (B) included in the olefin resin composition of the present invention is 1% by weight to 99% by weight and is, preferably, 5% by weight to 95% by weight. (It is assumed that the total amount of the olefin resin (A) and the olefin resin (B) is 100% by weight.)

The olefin resin composition of the present invention may include other resins, additive agents, etc.

The other resins may be an ethylene homopolymer, a propylene homopolymer, a propylene random copolymer including a monomer unit originated from propylene and a monomer unit originated from at least one selected from the group including ethylene and α-olefins each including four or more carbon atoms, a propylene polymerized material, a modified olefin polymer, an α-olefin homopolymer including four or more carbon atoms such as a butene homopolymer, and an ethylene-α-olefin copolymer including a monomer unit originated from ethylene and a monomer unit originated from an α-olefin including four or more carbon atoms. These substances may be produced using a heterogeneous catalyst or may be produced using a homogeneous catalyst such as a metallocene-system catalyst. The other resins can also be a styrene-based elastomer such as a styrene-butadiene-styrene copolymer, a styrene-isoprene-styrene copolymer, a hydrogen-added styrene-butadiene-styrene copolymer, or a hydrogen-added styrene-isoprene-styrene copolymer, a polyester-based elastomer, a polyurethane-based elastomer, and a polyvinylchloride-based elastomer. Two or more of the other resins may concurrently be used.

The propylene polymerized material is a material including a polymer component (I) and a copolymer component (II). The polymer component (I) may be a propylene homopolymer component. The copolymer component (II) may be a copolymer component including a constituent unit originated from propylene and a monomer unit originated from at least one selected from the group including ethylene and α-olefins each including four or more carbon atoms. The modified olefin polymer is similar to the above modified olefin polymer used in the production of the olefin resin (A) or the olefin resin (B) of the present invention.

The additive agents may be, for example, an inorganic bulking agent, an oxidation inhibitor, a heat resistance stabilizing agent, a neutralizer, an ultraviolet absorbing agent, a flame retarder, a flame retarding auxiliary agent, a dispersing agent, an antistatic agent, a smoothing agent, a nucleating agent, an adhesive agent, an antifogging agent, an antiblocking, a coloring agent, a plasticizing agent, a nucleating agent, and a liquid-crystallization promoting agent. Two or more of these additive agents may concurrently be used.

The inorganic bulking agent may be, for example, calcium carbonate, barium sulfate, mica, crystalline calcium silicate, talc, magnesium sulfate fiber, glass flake, glass powder, glass beads, clay, alumina, carbon black, and wollastonite. Two or more of these inorganic bulking agents may concurrently be used.

The production method of the olefin resin composition of the present invention may be, for example, a method of melting and kneading the olefin resin (A) and the olefin resin (B) with each other, and a method of mixing the olefin resin (A) and the olefin resin (B) with each other in a solvent.

The method of melting and kneading the olefin resin (A) and the olefin resin (B) with each other may be, for example, a method according to which the olefin resin (A), the olefin resin (B), and, when necessary, the other resins and the additive agents are mixed with each other using any known kneading apparatus such as a Henschel mixer, a ribbon blender, or a tumble mixer to be thereafter melted and kneaded, and a method according to which the olefin resin (A), the olefin resin (B), and, when necessary, the other resins and the additive agents are each continuously supplied to a kneading apparatus using a volumetric feeder to thereby acquire a homogeneous mixture and the mixture is thereafter melted and kneaded using a one-screw or a two or more-screw extruder, a Banbury mixer, a plast mill, a Brabender plastgraph, a roll kneader, etc. The set temperature of the kneader during the melting and the kneading is, preferably, a temperature of 60°C to 250°C, is, more preferably, 60°C to 230°C, and is, yet more preferably, 60°C to 210°C.

The olefin resin composition of the present invention is excellent in the balance between rigidity and impact resistance because the group represented by the above formula (A) or the above formula (B) of the olefin resin (A) and the group represented by the above formula (C) of the olefin resin (B) form hydrogen bonds together.

Using the olefin resin composition of the present invention, a molded article may be acquired using any known method such as injection molding, extrusion molding, calender molding, inflation molding, blow molding, or vacuum molding.

The molded article may be an injection-molded article for a packaging material, an injection-molded article for an automotive part, an industrial film, or a food packaging film.

Surface treatment may be applied to the industrial film and the food packaging film, such as corona discharge treatment, flame treatment, plasma treatment, or ozone treatment, or a metal vapor-deposition film may be deposited thereon. These films may each be used as a single-layer film or may each be used as one layer of a composite film. The "composite film" is a film including the film of the present invention and other films. The other films may be, for example, a polypropylene two-screw stretched film, a non-stretch nylon film, a stretched polyethylene terephthalate film, and an aluminum foil. The production method of the composite film may be a dry laminating and extrusion laminating.

The injection-molded article for a packaging material may be a food packaging material such as a pudding cup, a container for a boxed lunch or prepared food, or a cap of a PET bottle, an ink cartridge, a medical syringe, a packing or packaging material for cosmetic products, a packaging material for clothes, and a packing or packaging material for general merchandises.

The molded article for an automotive part may be an automotive inner part such as a door trim, a pillar, an instrumental panel, a console, a locker panel, an arm rest, a door panel, or a spare tire cover, an automotive outer part such as a bumper, a spoiler, a fender, or a side step, a part such as an air intake duct, a coolant reserve tank, a fender liner, a fan, or an under deflector, and a molded part integrally including a metal, and a rubber or a plastic such as a front-end panel.

The industrial film may be a release film, an enamel paper sheet for printing, a transfer film, a transfer foil, a dielectric film for a film capacitor, a battery separator film, a mold releasing film, a gas permeating film, an agricultural film, a protect film, a medical film for a sterilized bag and an infusion bag, a paper carton, and a cloth.

The food packaging film may be a film adhered to a container for a boxed lunch or prepared food, a bread packaging film, a noodle packaging film, a fresh vegetable packaging film, a fresh flower packaging film, a retort pouch, a film for packaging a sweet stuff such as a snack, a rice cake, or a candy, a dried food packaging film, a frozen and processed food packaging film, a film for packaging powder food such as sugar, salt, or cereals, a packaging film for food boiled in soy sauce, seaweed, or fish cakes, and a heavy-duty packaging bag such as a bag for rice or wheat and a bag for fertilizer or animal feed.

The present invention will be descried in more detail with reference to Examples while the present invention is not limited to Examples. The measurements of the items in the detailed description of the invention, Examples, and Comparative Examples were measured using the following methods.

(1) Limiting Viscosity ([η], unit: dl/g)
The reduced viscosity was measured for three points of the concentration of 0.1, 0.2, and 0.5 g/dl using an Ubbelohde viscometer. The limiting viscosity was acquired using a calculation method described in Section 491 of "Study on High Molecule Solutions and High Molecule Experiments 11" (1982, Kyoritsu Shuppan Co., Ltd.), that is, an extrapolation method of plotting the reduced viscosity for each concentration and extrapolating the concentration to be zero. The reduced viscosities were measured at 135°C using tetralin as the solvent.

(2) Weight-Average Molecular Weight (Mw) and Molecular Weight Distribution (Mw/Mn)
The weight-average molecular weight (Mw) and the number average molecular weight (Mn) were acquired under the following conditions using GPC, and the ratio thereof (Mw/Mn) was calculated.
Instrument Model: 150C (manufactured by Waters Corporation)
Column: TSK-GEL GMH6-HT, 7.5 mm (diameter)×300 mm (length)×three pieces
Measurement Temperature: 140°C
Solvent: Orthodichlorobenzene
Measurement Concentration: 5 mg/5 ml

(3) Content of Monomer Originated from Ethylene in Ethylene-Propylene Copolymer (hereinafter, referred to as "C2' content". Unit: mol%)
The content was acquired from a ¹³C NMR spectrum measured under the following conditions, based on a report by Kakugo (Macromolecules 1982, 15, 1150-1152).
Instrument Model: JEOL JNM-AL400 (manufactured by JEOL Ltd.)
Measurement Temperature: Room temperature
Measurement Solvent: CDCl₃

(4) Chemical Shift Value (δ)
A chemical shift value (δ) was acquired by measuring the proton nuclear magnetic resonance (¹H-NMR) under the following conditions, according to a proton nuclear magnetic resonance method.
The measurement was executed under measurement conditions A for an olefin polymer (1) including a double bond at an end thereof, a maleic acid anhydride-modified olefin polymer (1), and an olefin resin (1), and the measurement was executed under measurement conditions B for an olefin polymer (2) including a double bond at an end thereof, a maleic acid anhydride-modified propylene polymer (2), and an olefin resin (2).
<Measurement Conditions A>
Instrument Model: JEOL JNM-AL400 (manufactured by JEOL Ltd.)
Measurement Temperature: 135°C
Measurement Solvent: 1,1,2,2-tetrachloroethane-d2 (chemical shift reference value: 6.0 ppm)
<Measurement Conditions B>
Instrument Model: JEOL JNM-AL400 (manufactured by JEOL Ltd.)
Measurement Temperature: Room temperature
Measurement Solvent: CDCl₃ (chemical shift reference value: 7.26 ppm)

(5) Content Rate of Carbon-Carbon Double Bond in Olefin Polymer Including Carbon-Carbon Double Bond at Least at One End Thereof (Unit: mol%)
<Content Rate of Carbon-Carbon Double Bond in Olefin Polymer (1) Including Carbon-Carbon Double Bond at Least at One End Thereof>
From the ¹H-NMR spectrum measured in (3) above, the integral value (V¹) of the peaks (the peaks observed between 4.9 and 4.6 ppm and between 5.2 and 5.0 ppm) originated from the carbon-carbon double bond included in the olefin polymer (1) including a carbon-carbon double bond at least at one end thereof was acquired assuming that the total of the integral values of the peaks (all the peaks observed between 2.2 and 0.2 ppm) originated from the alkyl group included in the olefin polymer (1) including a double bond at least at one end thereof was 1,000, and the content rate of the carbon-carbon double bond was calculated from the following equation (i).
Content rate of the carbon-carbon double bond (mol%)=100×{(V¹/2)/(1,000/6)} Eq. (i)
<Content Rate of Carbon-Carbon Double Bond in Olefin Polymer (2) Including Carbon-Carbon Double Bond at Least at One End Thereof>
From the ¹H-NMR spectrum measured in (3) above, the integral value (V²) of the peaks (the peaks observed between 4.8 and 4.6 ppm and between 5.1 and 4.8 ppm) originated from the carbon-carbon double bond included in the olefin polymer (2) including a carbon-carbon double bond at least at one end thereof was acquired assuming that the total of the integral values of the peaks (all the peaks observed between 2.7 and 0.1 ppm) originated from the alkyl group included in the olefin polymer (2) including a double bond at least at one end thereof was 1,000, and the content rate of the carbon-carbon double bond was calculated from the following equation (ii).
Content rate of the carbon-carbon double bond (mol%)=100×(V²/2)/[1,000/{6×(100-C2' content)/100}+(4×C2' content/100)] Eq. (ii)

(6) Content Rate of Group Originated from Maleic Acid Anhydride in Maleic Acid Anhydride-Modified Olefin Polymer (Unit: mol%)
<Content Rate of Group Originated from Maleic Acid Anhydride in Maleic Acid Anhydride-Modified Olefin Polymer (1)>
From the ¹H-NMR spectrum measured in (3) above, the integral value (M¹) of the peak (the peak observed at 3.3 ppm) originated from the group originated from maleic acid anhydride included in the maleic acid anhydride-modified olefin polymer was acquired assuming that the total of the integral values of the peaks (all the peaks observed between 2.2 and 0.2 ppm) originated from the alkyl group included in the maleic acid anhydride-modified olefin polymer (1) was 1,000, and the content rate of the group originated from maleic acid anhydride was calculated from the following equation (iii).
Content rate of the group originated from maleic acid anhydride (mol%)=100×M¹/(1,000/6) Eq. (iii)
<Content Rate of Group Originated from Maleic Acid Anhydride in Maleic Acid Anhydride-Modified Olefin Polymer (2)>
From the ¹H-NMR spectrum measured in (3) above, the integral value (M²) of the peak (the peak observed at 3.3 ppm) originated from the group originated from maleic acid anhydride included in the maleic acid anhydride-modified olefin polymer was acquired assuming that the total of the integral values of the peaks (all the peaks observed between 2.7 and 0.1 ppm) originated from the alkyl group included in the maleic acid anhydride-modified olefin polymer (1) was 1,000, and the content rate of the group originated from maleic acid anhydride was calculated from the following equation (iv).
Content rate of the group originated from maleic acid anhydride (mol%)=100×M²/[1,000/{6×(100-C2' content)/100}+(4×C2' content/100)] Eq. (iv)

(7) Content Rate of Group Expressed by Formula (U) in Olefin Resin (1) (Hereinafter, referred to as "substituent group (U)") (Unit: mol%)

From the ¹H-NMR spectrum measured in (3) above, the integral value (U¹) of the peak (the peak observed at 5.9 ppm) originated from pyrimidine (=CH(C=O)N=) of the substituent group (U) included in the olefin resin (1) was acquired assuming that the total of the integral values of the peaks (all the peaks observed between 2.2 and 0.2 ppm) originated from the alkyl group included in the olefin resin (1) was 1,000, and the content rate of the substituent group (U) was calculated from the following equation (v).
Content rate of the substituent group (U) (mol%)=100×U/(1,000/6) Eq. (v)

(8) Content Rate of Group Expressed by Formula (N1) in Olefin Resin (2) (Hereinafter, referred to as "substituent group (N1)") (Unit; mol%)

From the ¹H-NMR spectrum measured in (3) above, the integral value (N¹) of the peak (the peak observed at 3.4 ppm) originated from a methylene group (>NCH₂CH<) adjacent to an imide linkage of the substituent group (N) was acquired assuming that the total of the integral values of the peaks (all the peaks observed between 2.7 and 0.1 ppm) originated from the alkyl group included in the olefin resin (2) was 1,000, and the content rate of the substituent group (N) was calculated from the following equation (vi).
Content rate of the substituent group (N1) (mol%)=100×(N¹/2)/[1,000/{6×(100-C2' content)/100}+(4×C2' content/100)] Eq. (vi)

(9) Content Rate of Group Expressed by Formula (N2) in Olefin Resin (3) (Hereinafter, referred to as "substituent group (N2)") (Unit; mol%)

From the ¹H-NMR spectrum measured in (3) above, the integral value (N²) of the peak (the peak observed at 3.4 ppm) originated from a methylene group (>NCH₂CH<) adjacent to an imide linkage of the substituent group (N2) was acquired assuming that the total of the integral values of the peaks (all the peaks observed between 2.7 and 0.1 ppm) originated from the alkyl group included in the olefin resin (3) was 1,000, and the content rate of the substituent group (N2) was calculated from the following equation (vii).
Content rate of the substituent group (N2) (mol%)=100×(N²/2)/[1,000/{6×(100-C2' content)/100}+(4×C2' content/100)] Eq. (vii)

(10) Young's Modulus (Unit: MPa)
The olefin resin composition was press-molded under the conditions of 170°C (230°C in Example 3 and Comparative Example 2), a pressure of five MPa, and five min to acquire a molded article having a length of 60 mm, a width of 20 mm, and a thickness of 0.3 mm. The acquired molded article was measured under the following conditions and the Young's modulus thereof was acquired from the slope of the tangential line in a stress strain line diagram thereof.
Instrument Model: STA-1225 (manufactured by Orientec Co., Ltd.)
Measurement Temperature: 23°C
Pulling Rate: 5mm/min
Gripping Interval: 30 mm

(11) Izod Impact Strength (Unit: KJ/m²)
The olefin resin composition was press-molded under the conditions of 170°C (230°C in Example 3 and Comparative Example 2), a pressure of five MPa, and five min to acquire a molded article having a length of 63.5 mm, a width of 10 mm, and a thickness of 3 mm, and including a V-shaped notch of two mm. The impact energy absorbed when the acquired molded article was broken was measured under the following conditions. The value was acquired as the Izod impact strength, that was acquired by dividing the impact energy absorbed when the molded article was broken, by the original cross-sectional area of the V-shaped notch portion of the molded article.
Instrument Model: Impact Testing Machine (manufactured by Toyo Seiki Manufacturing Co.)
Measurement Temperature: 23°C

(12) Volume-Average Circle-Equivalent Particle Diameter (Dv) of Dispersed Particles of Ethylene-Propylene Copolymer Included in Olefin Resin Composition (Unit: μm²)
The olefin resin composition was press-molded under the conditions of 170°C (230°C in Example 3 and Comparative Example 2), a pressure of five MPa, and five min to acquire a test piece (having a thickness of one mm). The cross section of the test piece was cut off using a microtome at -70°C and was colored using a ruthenium acid vapor at 60°C for 180 min to thereafter produce an ultra thin section having a thickness of about 1,000 Angstrom using a diamond knife at -70°C. The ultra thin section was observed using a transmission electron microscope (manufactured by Hitachi Ltd., H-7650) at an observation magnification ratio of 20,000 magnifications. The portion colored in black corresponded to the ethylene-propylene copolymer. The volume-average circle-equivalent particle diameter (Dv) of the dispersed particles of the ethylene-propylene copolymer was acquired by executing an image analysis process described below using high precision image analysis software "IP-1000" produced by Asahi Engineering Co., Ltd., from the photograph taken at the observation magnification ratio of 20,000 magnifications using the transmission electron microscope (manufactured by Hitachi Ltd., H-7650).
(Image Analysis Process)
The photograph acquired from the transmission electron microscope was captured into a computer (100 dpi, eight bits) using a scanner GT-9600 manufactured by Seiko Epson Corporation and was binarized using the high precision image analysis software "IP-1000" produced by Asahi Engineering Co., Ltd. The analyzed area was 20 μm². The diameter of a circle having the same area as that of the ethylene-propylene copolymer (the circle-equivalent particle diameter: Di, unit: μm) was acquired and the volume-average circle-equivalent particle diameter (Dv) was acquired from the following equation because the shape of the dispersed particle was unstable in the ethylene-propylene copolymer portion.

(In the equation, "i" is an integer equal to or greater than one and equal to or smaller than n and "Di" is the circle-equivalent particle diameter of each particle.)

The compounds described below were used in Examples and Comparative Examples.

A ureidopyrimidinone compound (1): 2-(6-aminohexylaminocarbonylamino)-6-methyl-4[1H]pyrimidinone (manufactured by SupraPolixB. V., the compound represented by the following formula)

A naphthyridine compound (1): 2-(4-aminomethylcyclohexanoylamino)-7-(2-propylamino)-1,8-naphthyridine (manufactured by SupraPolyxB. V., the compound represented by the following formula)

A naphthyridine compound (2): 2,7-bis-(4-aminomethylcyclohexanoylamino)-1,8-naphthyridine (manufactured by SupraPolyxB. V., the compound represented by the following formula)

[Production Example 1] Synthesis of Olefin Polymer (1) Including Carbon-Carbon Double Bond at Least at One End Thereof
The pressure of an autoclave of three L was reduced and a toluene solution of triethyl aluminum (1.0 mL) whose concentration was 1.0 mmol/mL was added into the autoclave. 49.6 mg of a catalyst synthesized according to the method described in International Patent Publication No. 2005-510546 and 500 g of heptane were added into the autoclave. 300 g of propylene was further added thereinto and the temperature was increased to 70°C to cause the substances to polymerize with each other for 180 min. After the polymerization, an acquired solid substance was dried at a reduced pressure and at 80°C to acquire the olefin polymer (1) including a carbon-carbon double bond at least at one end thereof. (The content rate of a vinyl group and a vinylidene group: 0.050 mol%)

¹H NMR: δ 5.2 to 5.0 ppm (2H), 4.9 to 4.6 ppm (2H), and 2.2 to 0.2 ppm (PP).

[Production Example 2] Synthesis of Maleic Acid Anhydride-Modified Olefin Polymer (1)
30 g of the olefin polymer (1) including a carbon-carbon double bond at least at one end thereof acquired in Production Example 1, 14.9 g of maleic acid anhydride, 6 mg of dibutylhydroxytoluene, and 30 mL of xylene were added into an autoclave (manufactured by Nitto Koatsu Co., Ltd.) to be stirred for three hours in a nitrogen atmosphere under the conditions of 200°C and the stirring blade rotation numbers of 1,600 rpm. After cooling the acquired solution, the acquired solution was poured into acetone to precipitate a solid substance. The acquired solid substance was repeatedly applied with two sessions of a process of heating the acquired solid substance in xylene to dissolve the substance therein and causing the substance to be again precipitated in acetone. The precipitated substance was thereafter dried in vacuum at 80°C for three hours to acquire the maleic acid anhydride-modified olefin polymer (1). The acquired maleic acid anhydride-modified olefin polymer (1) is press-molded to produce a film having a thickness of 100 μm. The infrared absorption spectrum (manufactured by JASCO Corporation, FT/IR-4100) of the acquired film was measured and absorption was recognized at about 1,780 cm^-1. The peak (a peak observed at 3.3 ppm) originated from the group originated from maleic acid anhydride was recognized from the ¹H NMR (the content rate of the group originated from maleic acid anhydride: 0.034 mol%).
¹H NMR: δ 3.3 ppm (1H), 3.2 to 2.2 ppm (2H), and 2.2 to 0.2 ppm (PP).

[Production Example 3] Synthesis of Olefin Resin (1)
0.20 parts by weight of an oxidation inhibitor (Sumilizer-GA80 produced by Sumitomo Chemical Co., Ltd.), 0.20 parts by weight of another oxidation inhibitor (produced by General Electric Company, Ultranocs U626), and 0.05 parts by weight of a neutralizer (calcium stearate produced by NOF Corp.) were melted and kneaded with 100 parts by weight of the maleic acid anhydride-modified olefin polymer (1) acquired in Production Example 2, 6.6 parts by weight of the ureidopyrimidinone compound (1), and 100 parts by weight of the maleic acid anhydride-modified olefin polymer (1) in a nitrogen atmosphere under the conditions of a set temperature of 180°C, a kneading time period of 10 min, and the screw rotation numbers of 200 rpm, using a bench-type small kneader (manufactured by DSM; Xplore, a 15-cc two-screw micro compounder) to acquire a white solid substance. The acquired white solid substance was heated in xylene to be dissolved therein and was again precipitated in acetone. The precipitated substance was dried in vacuum at 80°C for three hours, was thereafter washed with dimethylsulfoxide at 100°C for two hours, and was dried in vacuum at 120°C for three hours to acquire the olefin resin (1) represented by the following formula (I). (The content rate of the substituent group (U): 0.022 mol%)

(In the formula (III), "PP" represents a propylene homopolymer.)
¹H NMR: δ 5.9 ppm (1H), 3.4 ppm (2H), 3.2 ppm (2H), 2.5 ppm (3H), and 2.2 to 0.2 ppm (8H and PP). The introduction of the substituent group (U) was recognized from the peak (the peak observed at 3.4 ppm) originated from a methylene group (>NCH₂-) adjacent to an imide linkage.

[Production Example 4] Synthesis of Olefin Polymer (2) Including Carbon-Carbon Double Bond at Least at One End Thereof
The pressure of an autoclave was reduced and 797 g of toluene was added thereinto. After further adding 200 g of propylene in the autoclave, the temperature was increased to 60°C and ethylene was added thereto at a partial pressure of 0.4 MPa. 0.1 mL of a toluene solution of triisobutyl aluminum (produced by Kanto Chemical Co., Inc.) was added thereto whose concentration was 0.1 μmol/mL. 0.01 mg of dimetylsilylenebis(indenyl)zirconium dichloride and 2.5 mL of a dimethylaniliniumtetrakispentafluorophenyl borate hexane solution (1 μmol/mL) were added into the autoclave to be polymerized with each other for 20 min. After the polymerization, ethanol was added to the acquire solution to precipitate a solid substance. The solid substance was dried at a reduced pressure and at 80°C to acquire the olefin polymer (2) including a carbon-carbon double bond at least at one end thereof. (The content rate of the carbon-carbon double bond: 0.16 mol%)
C2' content=54.5% by weight, Mw=38,000, and Mw/Mn=1.8.
¹H NMR: δ 5.1 to 4.8 ppm (2H), 4.8 to 4.6 ppm (2H), and 2.7 to 0.1 ppm (EP).

[Production Example 5] Synthesis of Maleic Acid Anhydride-Modified Olefin Polymer (2)
30 g of the olefin polymer (2) including a carbon-carbon double bond at least at one end thereof acquire in Production Example 4, 55 g of maleic acid anhydride, 6 mg of dibutylhydroxytoluene, and 30 mL of xylene were added into an autoclave (manufactured by Nitto Koatsu Co., Ltd.) to be stirred for three hours in a nitrogen atmosphere under the conditions of 200°C and the stirring blade rotation numbers of 1,600 rpm. After cooling the acquired solution, the acquired solution was poured into acetone to precipitate a solid substance. The acquired solid substance was repeatedly applied with two sessions of a process of heating the acquired solid substance in xylene to dissolve the substance therein and again precipitating the substance in acetone, and the precipitated substance was dried in vacuum at 80°C for three hours, to acquire the maleic acid anhydride-modified olefin polymer (2). The acquired maleic acid anhydride-modified olefin polymer (2) was press-molded to produce a 100-μm film. The infrared absorption spectrum (manufactured by JASCO Corporation, FT/IR-4100) of the acquired film was measured and absorption was observed at about 1,780 cm^-1. The peak (the peak observed at 3.3 ppm) originated from the group originated from maleic acid anhydride was recognized from the ¹H NMR (the content rate of the group originated from maleic acid anhydride: 0.078 mol%).
¹H NMR: δ 3.3 ppm (1H), 3.2 to 2.7 ppm (2H), and 2.7 to 0.1 ppm (EP).

[Production Example 6] Synthesis of Olefin Resin (2)
0.20 parts by weight of an oxidation inhibitor (Sumilizer-GA80 produced by Sumitomo Chemical Co., Ltd.), 0.20 parts by weight of another oxidation inhibitor (produced by General Electric Company, Ultranocs U626), and 0.05 parts by weight of a neutralizer (calcium stearate produced by NOF Corp.) were melted and kneaded with 100 parts by weight of the maleic acid anhydride-modified olefin polymer (2) acquired in Production Example 5, 6.3 parts by weight of the naphthyridine compound (1), and 100 parts by weight of the maleic acid anhydride-modified olefin polymer (2) in a nitrogen atmosphere under the conditions of a set temperature of 170°C, a kneading time period of 10 min, and the screw rotation numbers of 200 rpm, using a bench-type small kneader (manufactured by DSM; Xplore, a 15-cc two-screw micro compounder) to acquire a yellow solid substance. The acquired yellow solid substance was repeatedly applied with two sessions of a process of heating the acquired yellow solid substance in xylene to dissolve the substance therein and causing the substance to be again precipitated in acetone, and the precipitated substance was dried in vacuum at 80°C for three hours to acquire the olefin resin (2) represented by the following formula (II). (The content rate of the substituent group (N): 0.049 mol%)

(In the formula (II), "EP" represents an ethylene-propylene copolymer.)
¹H NMR: δ 8.5 ppm (2H), 8.3 to 8.0 ppm (4H), 3.4 ppm (2H), 3.3 to 2.7 ppm (3H), and 2.7 to 0.1 ppm (17H and EP). The introduction of the substituent group (N) was recognized from the peak (the peak observed at 3.4 ppm) originated from a methylene group (>NCH₂C<) adjacent to an imide linkage.

[Production Example 7] Synthesis of Olefin Resin (3)
0.20 parts by weight of an oxidation inhibitor (Sumilizer-GA80 produced by Sumitomo Chemical Co., Ltd.), 0.20 parts by weight of another oxidation inhibitor (produced by General Electric Company, Ultranocs U626), and 0.05 parts by weight of a neutralizer (calcium stearate produced by NOF Corp.) were melted and kneaded with 100 parts by weight of the maleic acid anhydride-modified olefin polymer (2) acquired in Production Example 5, 8.7 parts by weight of the naphthyridine compound (2), and 100 parts by weight of the maleic acid anhydride-modified olefin polymer (2) in a nitrogen atmosphere under the conditions of a set temperature of 170°C, a kneading time period of 10 min, and the screw rotation numbers of 200 rpm, using a bench-type small kneader (manufactured by DSM; 1plore, a 15-cc two-screw micro compounder) to acquire a yellow solid substance. The acquired yellow solid substance was repeatedly applied with two sessions of a process of heating the acquired yellow solid substance in xylene to dissolve the substance therein and causing the substance to be again precipitated in methanol, and the precipitated substance was thereafter dried in vacuum at 80°C for three hours to acquire the olefin resin (3) represented by the following formula (III). (The content rate of the substituent group (N): 0.048 mol%)

(In the formula (III), "EP" represents an ethylene-propylene copolymer.)
¹H NMR: δ 8.5 ppm (2H), 8.3 to 8.0 ppm (4H), 3.4 ppm (4H), 3.3 to 2.7 ppm (6H), and 2.7 to 0.1 ppm (20H and EP). The introduction of the substituent group (N) was recognized from the peak (the peak observed at 3.4 ppm) originated from a methylene group (>NCH₂C<) adjacent to an imide linkage.

0.20 parts by weight of an oxidation inhibitor (Sumilizer-GA80 produced by Sumitomo Chemical Co., Ltd.), 0.20 parts by weight of another oxidation inhibitor (produced by General Electric Company, Ultranocs U626), and 0.05 parts by weight of a neutralizer (calcium stearate produced by NOF Corp.) were melted and kneaded with a total amount of 100 parts by weight of the olefin resin (1) and the olefin resin (2) including 80% by weight of the olefin resin (1) and 20% by weight of the olefin resin (2) under the conditions of a set temperature of 170°C, a kneading time period of 10 min, and the screw rotation velocity of 200 rpm, using a small kneader (manufactured by DSM; 1plore) to acquire the olefin resin composition (1). The acquired olefin resin composition (1) was press-molded under the conditions of a temperature of 170°C, a pressure of five MPa, and five min to acquire a molded article. The physical properties of the molded article of the acquired olefin resin composition (1) are shown in Table 1.

A molded article of the olefin resin composition (2) was acquired using the same method as that of Example 1 except the fact that 20% by weight of the olefin resin (3) was used instead of the olefin resin (2). The physical properties of the molded article of the acquired olefin resin composition (2) are shown in Table 1.

A molded article of the olefin resin composition was acquired using the same method as that of Example 1 except the fact that the set temperature of the small kneader was set to be 210°C and the temperature for the press-molding was set to be 230°C. The physical properties of the molded article of the acquired olefin resin composition are shown in Table 1.

0.20 parts by weight of Sumilizer-GA80 produced by Sumitomo Chemical Co., Ltd., 0.20 parts by weight of Ultranocs U626 produced by General Electric Company, 0.05 parts by weight of calcium stearate produced by NOF Corp., and 60 mL of xylene were added into a separable flask to be stirred with a total amount of 100 parts by weight of the olefin resin (1) and the olefin resin (2) including 80% by weight of the olefin resin (1) and 20% by weight of the olefin resin (2) for two hours in the air under the conditions of 140°C and the stirring blade rotation numbers of 300 rpm. The acquired product was thereafter dried in vacuum for two hours at 200°C to acquire the olefin resin composition. The acquired olefin resin composition was press-molded under the conditions of a temperature of 170°C, a pressure of five MPa, and five min to acquire a molded article. The physical properties of the molded article of the acquired olefin resin composition are shown in Table 1.

Comparative Example 1

A molded article of the olefin resin composition (3) was acquired in the same method as that of Example 1 except the fact that 80% by weight of the olefin polymer (1) including a carbon-carbon double bond at least at one end thereof was used instead of the olefin resin (1) and 20% by weight of the olefin polymer (2) including a carbon-carbon double bond at least at one end thereof was used instead of the olefin resin (2). The physical properties of the molded article of the acquired olefin resin composition (3) are shown in Table 1.

Comparative Example 2

A molded article of the olefin resin composition was acquired similarly to Comparative Example 1 except the fact that the set temperature of the small kneader was set to be 210°C and the temperature for the hot press-molding was set to be 230°C. The physical properties of the molded article of the acquired olefin resin composition are shown in Table 1.

Comparative Example 3

A molded article of the olefin resin composition was acquired in the same method as that of Example 4 except the fact that 80% by weight of the olefin polymer (1) including a carbon-carbon double bond at an end thereof was used instead of the olefin resin (1) and 20% by weight of the olefin polymer (2) including a carbon-carbon double bond at an end thereof was used instead of the olefin resin (2). The physical properties of the molded article of the acquired olefin resin composition are shown in Table 1.

Claims

An injection-molded article for a packaging material, that comprises an olefin resin composition comprising an olefin resin (A) represented by the following formula (1) or the following formula (2), and an olefin resin (B) represented by the following formula (3) or (4),

wherein "R¹" in the above formula (1), "R¹" in the above formula (2), and "R²" in the above formula (1) each independently represent a hydrogen atom, a halogen atom, a hydrocarbyl group having 1 to 20 carbon atoms, a hydrocarbyloxy group having 1 to 20 carbon atoms, a hydrocarbyl group having 1 to 20 carbon atoms and being substituted by a halogen atom, or a hydrocarbyloxy group having 1 to 20 carbon atoms and being substituted by a halogen atom;
"X¹" in the above formula (1), "X¹" in the above formula (2), and "X²" in the above formula (2) each independently represent a linking moiety; and
"A¹" in the above formula (1), "A¹" in the above formula (2), and "A²" in the above formula (2) each independently represent a propylene polymer residue, an ethylene-propylene copolymer residue, or an ethylene-1-butene copolymer residue,

wherein "R³", "R⁴", "R⁵", and "R⁶" in the above formula (3), "R³", "R⁴", "R⁵", and "R⁶" in the above formula (4), and "R⁷" in the above formula (3) each independently represent a hydrogen atom, a halogen atom, a hydrocarbyl group having 1 to 20 carbon atoms, a hydrocarbyloxy group having 1 to 20 carbon atoms, a hydrocarbyl group having 1 to 20 carbon atoms and being substituted by a halogen atom, or a hydrocarbyloxy group having 1 to 20 carbon atoms and being substituted by a halogen atom;
"X³" in the above formula (3), "X³" in the above formula (4), and "X⁴" in the above formula (4) each independently represent a linking moiety; and
"A³" in the above formula (3), "A³" in the above formula (4), and "A⁴" in the above formula (4) each independently represent a propylene polymer residue, an ethylene-propylene copolymer residue, or an ethylene-1-butene copolymer residue.
An injection-molded article for an automotive part, that comprises an olefin resin composition comprising an olefin resin (A) represented by the following formula (1) or the following formula (2), and an olefin resin (B) represented by the following formula (3) or (4),

wherein "R¹" in the above formula (1), "R¹" in the above formula (2), and "R²" in the above formula (1) each independently represent a hydrogen atom, a halogen atom, a hydrocarbyl group having 1 to 20 carbon atoms, a hydrocarbyloxy group having 1 to 20 carbon atoms, a hydrocarbyl group having 1 to 20 carbon atoms and being substituted by a halogen atom, or a hydrocarbyloxy group having 1 to 20 carbon atoms and being substituted by a halogen atom;
"X¹" in the above formula (1), "X¹" in the above formula (2), and "X²" in the above formula (2) each independently represent a linking moiety; and
"A¹" in the above formula (1), "A¹" in the above formula (2), and "A²" in the above formula (2) each independently represent a propylene polymer residue, an ethylene-propylene copolymer residue, or an ethylene-1-butene copolymer residue,

wherein "R³", "R⁴", "R⁵", and "R⁶" in the above formula (3), "R³", "R⁴", "R⁵", and "R⁶" in the above formula (4), and "R⁷" in the above formula (3) each independently represent a hydrogen atom, a halogen atom, a hydrocarbyl group having 1 to 20 carbon atoms, a hydrocarbyloxy group having 1 to 20 carbon atoms, a hydrocarbyl group having 1 to 20 carbon atoms and being substituted by a halogen atom, or a hydrocarbyloxy group having 1 to 20 carbon atoms and being substituted by a halogen atom;
"X³" in the above formula (3), "X³" in the above formula (4), and "X⁴" in the above formula (4) each independently represent a linking moiety; and
"A³" in the above formula (3), "A³" in the above formula (4), and "A⁴" in the above formula (4) each independently represent a propylene polymer residue, an ethylene-propylene copolymer residue, or an ethylene-1-butene copolymer residue.
An industrial film that comprises an olefin resin composition comprising an olefin resin (A) represented by the following formula (1) or the following formula (2), and an olefin resin (B) represented by the following formula (3) or (4),

wherein "R¹" in the above formula (1), "R¹" in the above formula (2), and "R²" in the above formula (1) each independently represent a hydrogen atom, a halogen atom, a hydrocarbyl group having 1 to 20 carbon atoms, a hydrocarbyloxy group having 1 to 20 carbon atoms, a hydrocarbyl group having 1 to 20 carbon atoms and being substituted by a halogen atom, or a hydrocarbyloxy group having 1 to 20 carbon atoms and being substituted by a halogen atom;
"X¹" in the above formula (1), "X¹" in the above formula (2), and "X²" in the above formula (2) each independently represent a linking moiety; and
"A¹" in the above formula (1), "A¹" in the above formula (2), and "A²" in the above formula (2) each independently represent a propylene polymer residue, an ethylene-propylene copolymer residue, or an ethylene-1-butene copolymer residue,

wherein "R³", "R⁴", "R⁵", and "R⁶" in the above formula (3), "R³", "R⁴", "R⁵", and "R⁶" in the above formula (4), and "R⁷" in the above formula (3) each independently represent a hydrogen atom, a halogen atom, a hydrocarbyl group having 1 to 20 carbon atoms, a hydrocarbyloxy group having 1 to 20 carbon atoms, a hydrocarbyl group having 1 to 20 carbon atoms and being substituted by a halogen atom, or a hydrocarbyloxy group having 1 to 20 carbon atoms and being substituted by a halogen atom;
"X³" in the above formula (3), "X³" in the above formula (4), and "X⁴" in the above formula (4) each independently represent a linking moiety; and
"A³" in the above formula (3), "A³" in the above formula (4), and "A⁴" in the above formula (4) each independently represent a propylene polymer residue, an ethylene-propylene copolymer residue, or an ethylene-1-butene copolymer residue.
A food packaging film that comprises an olefin resin composition comprising an olefin resin (A) represented by the following formula (1) or the following formula (2), and an olefin resin (B) represented by the following formula (3) or (4),

wherein "R¹" in the above formula (1), "R¹" in the above formula (2), and "R²" in the above formula (1) each independently represent a hydrogen atom, a halogen atom, a hydrocarbyl group having 1 to 20 carbon atoms, a hydrocarbyloxy group having 1 to 20 carbon atoms, a hydrocarbyl group having 1 to 20 carbon atoms and being substituted by a halogen atom, or a hydrocarbyloxy group having 1 to 20 carbon atoms and being substituted by a halogen atom;
"X¹" in the above formula (1), "X¹" in the above formula (2), and "X²" in the above formula (2) each independently represent a linking moiety; and
"A¹" in the above formula (1), "A¹" in the above formula (2), and "A²" in the above formula (2) each independently represent a propylene polymer residue, an ethylene-propylene copolymer residue, or an ethylene-1-butene copolymer residue,

wherein "R³", "R⁴", "R⁵", and "R⁶" in the above formula (3), "R³", "R⁴", "R⁵", and "R⁶" in the above formula (4), and "R⁷" in the above formula (3) each independently represent a hydrogen atom, a halogen atom, a hydrocarbyl group having 1 to 20 carbon atoms, a hydrocarbyloxy group having 1 to 20 carbon atoms, a hydrocarbyl group having 1 to 20 carbon atoms and being substituted by a halogen atom, or a hydrocarbyloxy group having 1 to 20 carbon atoms and being substituted by a halogen atom;
"X³" in the above formula (3), "X³" in the above formula (4), and "X⁴" in the above formula (4) each independently represent a linking moiety; and
"A³" in the above formula (3), "A³" in the above formula (4), and "A⁴" in the above formula (4) each independently represent a propylene polymer residue, an ethylene-propylene copolymer residue, or an ethylene-1-butene copolymer residue.