Classifications

• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
  • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
  • C08L23/16—Ethene-propene or ethene-propene-diene copolymers
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
  • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
  • C08L23/04—Homopolymers or copolymers of ethene
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
  • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
  • C08L23/10—Homopolymers or copolymers of propene
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L2312/00—Crosslinking
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10S525/00—Synthetic resins or natural rubbers -- part of the class 520 series
  • Y10S525/919—Ionomer resins, carboxylate salt-containing copolymers
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/31504—Composite [nonstructural laminate]
  • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
  • Y10T428/31645—Next to addition polymer from unsaturated monomers
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/31504—Composite [nonstructural laminate]
  • Y10T428/31678—Of metal
  • Y10T428/31692—Next to addition polymer from unsaturated monomers
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/31504—Composite [nonstructural laminate]
  • Y10T428/31678—Of metal
  • Y10T428/31692—Next to addition polymer from unsaturated monomers
  • Y10T428/31696—Including polyene monomers [e.g., butadiene, etc.]
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/31504—Composite [nonstructural laminate]
  • Y10T428/31855—Of addition polymer from unsaturated monomers
  • Y10T428/31931—Polyene monomer-containing

Definitions

• the present invention relates to a molding for automobiles, and more particularly, to a molding for automobiles having a portion made of a thermoplastic thermoplastic elastomer.
• the automotive molding of the present invention is characterized in that an ethylene, an o-olefin having 3 to 10 carbon atoms, an unsaturated monomer having a functional group, and an unconjugated diene are optionally copolymerized. It is characterized by having a portion made of an elastomer material containing a system random copolymer and a metal ion for cross-linking the olefin-based random copolymer.
• the unsaturated monomer having a functional group for obtaining the olefin-based random copolymer is preferably a functional cyclic compound represented by the following general formula (1). .
• R 1 represents a hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms
• ⁇ 1 , ⁇ 2 and ⁇ 3 each independently represent a hydrogen atom, a carbon number 1 to 1 0 hydrocarbon group or 1 COOH
• at least one of ⁇ 1 , ⁇ ⁇ ⁇ 2 and ⁇ 3 is one COOH
• two or more of ⁇ 1 , ⁇ 2 and ⁇ 3 are 1 C
• ⁇ they may be acid anhydrides (1-CO— (O) —CO—) formed by linking each other.
• o is an integer from 0 to 2
• p is an integer from 0 to 5.
• the elastomer material further contains a polymer compound selected from a thermoplastic resin, a thermoplastic elastomer and rubber, and Z or a softener. Is also good.
• the portion made of the elastomer material is a skin material.
• the moldings for automobiles of the present invention include door belt moldings, side moldings, stepping molds, noref moldings, noring drip moldings, front wind moldings, quarter winding moldings, food top moldings, rear winding moldings, glass run channels, or bumper moldings. Can be preferably applied. The invention's effect
• the automobile molding of the present invention is formed of a specific elastomer material having excellent scratch resistance and weather resistance, high gloss and good rubber elasticity and mechanical properties, , Side Mole, Stepmo Ichinore, Noleaf Mornole, Nolef Drip Mornole, Front Wind Moore, Quarter Wind Moore, Food Top Moore, Rear Wind Moore, Glass Lunch Yannel or Bumper Mall it can.
• Side Mole Stepmo Ichinore
• Noleaf Mornole Nolef Drip Mornole
• Front Wind Moore Quarter Wind Moore, Food Top Moore, Rear Wind Moore, Glass Lunch Yannel or Bumper Mall it can.
• the automotive molding of the present invention is characterized in that at least ethylene, ⁇ -olefin having 3 to 10 carbon atoms, and an olefin-based random copolymer obtained by copolymerizing a compound having a functional group (hereinafter, “specific functional group”) And a metal ion for cross-linking the specific functional group-containing copolymer (hereinafter, also referred to as a “specific elastomer material”). It has a part.
• ethylene is used as an essential monomer component.
• 9 9 moles is preferably 0/0, more preferably 4 0-8 9.
• 9 9 mole 0/0, and particularly preferably 4 5-8 4. is a 9 9 mol 0/0.
• Ethylene content is 35 moles. / 0 , the functional cyclization described later It may be difficult to copolymerize the compound. On the other hand, if the proportion of ethylene exceeds 94.99%, it may be difficult to obtain the rubber elasticity required as an elastomer material.
• a specific functional group-containing copolymer 0; -olefin (hereinafter referred to as “specific ⁇ -olefin”) having 3 to 10 carbon atoms is used as an essential monomer.
• specific ⁇ -olefin 3 to 10 carbon atoms
• the copolymerizability of the ⁇ -olefin with other monomers is improved.
• specific ⁇ -olefins include propylene, 1-butene, 1-pentene, 4-methyl-1-pentene 1-1,1-hexene, 1-1heptene, 1-octene, 1-decene and the like. . Of these, propylene, 1-butene, 1-hexene and 1-octene are preferred, and propylene and 1-butene are more preferred.
• Specific alpha - proportion of Orefin is preferably 5-5 0 mol% of the total monomer component, more preferably 1 0-4 5 mole 0/0, particularly preferably 1 5-4 0 mole 0/0.
• an unsaturated monomer having a functional group capable of crosslinking with metal ions (hereinafter, referred to as “functional group-containing unsaturated monomer”) is an essential monomer component.
• the unsaturated monomer having a functional group preferably has a carboxyl group, a hydroxyl group, an epoxy group or a sulfonic acid group as a functional group.
• a functional cyclic compound represented by the above general formula (1) (hereinafter referred to as “specific functional cyclic compound”) may be used. preferable.
• R 1 is a hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms
• Y 1 , Y 2 and Y 3 are each independently It is a hydrogen atom, a hydrocarbon group having 1 to 10 carbon atoms or one COOH, and at least one of Y 1 , Y 2 and Y 3 is one COOH.
• Y 1 , Y 2 and Y 3 are acid anhydrides (one CO— (O) —CO—) formed by linking each other. There may be.
• hydrocarbon group having 1 to 10 carbon atoms include a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexinole group, a heptyl group, an octyl group, a nonyl group, and a decyl group. be able to.
• the number of repetitions o is an integer of 0 to 2. When the number of repetitions o is 3 or more, it may be difficult to copolymerize the cyclic compound with another monomer.
• the number of repetitions p is an integer from 0 to 5.
• Such a specific functional cyclic compound can be produced by condensing a cyclopentene and a functional group-containing unsaturated compound by a Diels-Alder reaction.
• the proportion of the functional group-containing unsaturated monomer is preferably from 0.01 to 5 mol% of the total monomer component, more preferably 0 .. 01-4 mol 0/0.
• the obtained thermoplastic elastomer sheet When the content of the unsaturated monomer having a functional group is less than 0.01 mol%, the obtained thermoplastic elastomer sheet has a low cross-linking density and a high mechanical strength. Is likely to be low. On the other hand, when the use ratio of the functional group-containing unsaturated monomer exceeds 5 mol%, the obtained olefin thermoplastic elastomer sheet may have too high a cross-linking density and a decrease in fluidity. , Preferred les ,.
• a non-conjugated diene can be used as an arbitrary monomer component in addition to the above-mentioned essential monomer component.
• non-conjugated gen examples include linear non-cyclic gens such as 1,4-hexadiene, 1,6-hexadiene, and 1,5-hexadiene, 5-methyl-1,4_hexadiene, 3 , 7-Dimethyl-1,6-octadiene, 5,7-Dimethylocta-1,6-diene, 3,7-Dimethyl-1,7-octadiene, 7-Methyl otater 1,6-diene, dihydromyrcene Branched chain acyclic gen, tet Lahydroindene, Methyltetrahydroindene, Dicyclopentadiene, Bicyclo [2.2.1] —Hepter 2,5-Gen, 5-Methylene-12-Norpolene, 5-Ethylidene-12-Nonorpolenene, 5-Pro Alicyclic gens such as penyl-2-norbornene, 5-isopropylidene-2-n
• non-conjugated diene examples include 1,4-hexadiene, dicyclopentadiene, 5-ethylidene-2-norbornene, and the like.
• the proportion of non-conjugated gen used is preferably 0 to 10 mol% of the total monomer components.
• the use ratio of the conjugated gen exceeds 10 mol%, the obtained elastomer material may have low durability.
• the specific functional group-containing copolymer has a weight average molecular weight Mw in terms of polystyrene measured by gel permeation chromatography (GPC) of usually from 1,000 to 3,000,000, preferably from 3,000 to 1,000. ,, 000,000, more preferably from 5,000 to 700,000.
• GPC gel permeation chromatography
• the specific functional group-containing copolymer must have a melt flow rate (MFR) measured at a temperature of 230 ° C and a load of 10 kg: 0.010 to: L 00 g / I 0 min And more preferably 0.05 to 50 g / 10 min.
• MFR melt flow rate
• the specific functional group-containing copolymer has a glass transition temperature of 90 to 50 ° C., especially ⁇ 70 to 10 ° C. Is preferred.
• the specific functional group-containing copolymer may be an oil-extended polymer to which a softener is added during polymerization.
• the metal ion used in the present invention forms an ionic bond with a functional group in the specific functional group-containing copolymer, thereby forming a metal ion between the molecules of the specific functional group-containing copolymer. It forms a crosslinked structure.
• metal ions include lithium, potassium, sodium, anoremium, magnesium, calcium, barium, cesium, strontium, rubidium, titanium, zinc, copper, iron, tin, lead, and zirconium.
• To VIII group metal ions Of these, metal ions of potassium, sodium, anorenium, magnesium, barium, zinc, iron, calcium, titanium, lead, and zirconium are preferred.
• the specific elastomer material constituting the molding for automobiles of the present invention may contain a polymer compound selected from a thermoplastic resin, a thermoplastic elastomer and rubber.
• the polymer compound is not particularly limited as long as it is other than a specific functional group-containing copolymer, and various compounds can be used. Specific examples thereof include ionomers and aminoacrylamide polymers. , Polyethylene and its maleic anhydride graft polymer, polyisobutylene, ethylene chloride butyl polymer, ethylene vinyl alcohol polymer, ethylene acetate biel copolymer, polyethylene oxide, ethylene acrylic acid copolymer, polypropylene and its maleic anhydride Acid graft polymer, polyisobutylene and its maleic anhydride graft polymer, chlorinated polypropylene, 4-methylpentene-11 resin, polystyrene, ABS resin, ACS resin, AS resin, AES resin, ASA resin, MBS resin, Acrylic resin, methacrylic resin, PVC Resin, vinylidene chloride resin, polyamide resin, polycarbonate resin, acrylic resin, methacrylic resin, vinyl chloride resin, vinylidene chloride resin, buty
• the proportion of the polymer compound used is 300 parts by weight or less, preferably 1 to 200 parts by weight, per 100 parts by weight of the specific functional group-containing copolymer.
• a specific elastomer material may contain a softener.
• This softener may be added to a monomer solution for obtaining a specific functional group-containing copolymer, or may be added when preparing or molding a specific elastomer material. Is also good.
• the softening agent is not particularly limited as long as it is a commonly used rubber softening agent.
• mineral oil-based hydrocarbons are preferred, and those having a weight-average molecular weight of from 300 to 2,000, particularly from 50,000 to 1,500, are preferred.
• Rubber softeners composed of mineral oil-based hydrocarbons are generally a mixture of aromatic hydrocarbons, naphthenic hydrocarbons, and paraffinic hydrocarbons.
• Paraffin-based oil accounts for more than 50% of the number And naphthenic hydrocarbons whose carbon number is 30 to 45% of the total carbon number are naphthenic oils, and those whose aromatic hydrocarbons have a carbon number of 30% or more of the total carbon number are aromatic.
• Each is classified as a group oil.
• paraffinic ones are preferred, and hydrogenated paraffinic ones are particularly preferred.
• the mineral oil-based hydrocarbon preferably has a kinematic viscosity at 40 ° C of 20 to 800 cSt, particularly preferably 50 to 600 cSt, and has a pour point of It is preferably from 40 to 0 ° C, particularly preferably from 30 to 0 ° C.
• the softener is used in an amount of 100 parts by weight or less, preferably 1 to 67 parts by weight, based on 100 parts by weight of the specific functional group-containing copolymer.
• specific elastomeric materials may contain various additives as required, such as lubricants, anti-aging agents, heat stabilizers, weathering agents, metal deactivators, UV absorbers, light stabilizers, copper inhibitors, etc.
• Inorganic fibers such as powders, glass fibers, metal fibers, etc., organic fibers such as carbon fibers and polyamide fibers, composite fibers, inorganic wheels such as potassium titanate whiskers, glass beads, glass nolan, glass flakes, asbestos, My strength, calcium carbonate, talc, silica, alumina, alumina silica, calcium silicate, hydrotalcite, kaolin, diatomaceous earth, graphite Fillers such as pumice, pumice powder, cotton powder, cotton floc, cork powder, barium
• the specific elastomer material constituting the automobile molding of the present invention can be manufactured as follows.
• the specific method for producing the specific functional group-containing copolymer is not particularly limited.
• the method described in JP-A-2001-247629 can be suitably used.
• component (A) a specific functional group-containing copolymer
• component (B) a metal compound that supplies a metal ion for crosslinking the copolymer
• a metal oxide, a metal hydroxide, a metal salt, an organometallic compound, a metal salt of a monovalent carboxylic acid, and the like can be used.
• component (B) Specific examples of the metal Sani ⁇ used as component (B), CuO, MgO, B a 0 , Z nO, A 1 2 0 3, F e 2 0 3, S nO, C a 0, T i O 2 and so on.
• organometallic compound used as the component (B) include organic aluminum compounds, organic titanium compounds, organic phosphorus compounds, organic boron compounds, organic zirconium compounds, organic gallium compounds, organic tin compounds, and organic magnesium compounds.
• the carboxylic acid preferably has 3 to 23 carbon atoms.
• carboxylic acids include propionic acid, acrylic acid, butyric acid, methacrylic acid, valeric acid, hexanoic acid, octanoic acid, 2-ethylhexanoic acid, decanoic acid, palmitic acid, myristic acid, lauric acid, Examples include stearic acid, oleic acid, behenic acid, naphthenic acid, and benzoic acid.
• These metal compounds may be treated with a silane coupling agent or a higher fatty acid in order to enhance the dispersibility of the specific functional group-containing copolymer as the component (A).
• These metal compounds can be used alone or in combination of two or more.
• the proportion of the metal compound _ used as the component (B) is usually 0.1 to 20 parts by weight, preferably 0 to 100 parts by weight, per 100 parts by weight of the specific functional group-containing copolymer as the component (A). It is 2 to 15 parts by weight, especially 0.5 to 10 parts by weight. If this proportion is less than 0.1 part by weight, the resulting elastomeric material has a low cross-linking density, low mechanical strength and low scratch resistance. On the other hand, if this proportion exceeds 20 parts by weight, the resulting elastomeric material is not preferred because the crosslink density is too high and the fluidity may decrease.
• component (I) a solution in which the specific functional group-containing copolymer as the component (A) is dissolved in an appropriate solvent, and a solution in which the metal compound as the component (B) is dissolved or dispersed in an appropriate solvent. Is a dispersion, a polymer compound (hereinafter also referred to as “component (C)”), and a softener.
• component (D) A solution or dispersion obtained by dissolving or dispersing other components used as necessary is cross-linked by heating or cross-linked. Dissolve component (A) in solvent, and mix components (B) and (C)
• (D) A method of heating while dissolving or dispersing components and other components used as necessary, such as components, or after dissolving or dispersing.
• component (II) A specific functional group-containing copolymer as the component (A), a metal compound as the component (B), and other components used as necessary such as the components (C) and (D). component And subjecting the resulting mixture to a dynamic heat treatment to crosslink.
• the solvent used in the above-mentioned method (I) is not particularly limited. However, in view of easily dissolving the specific functional group-containing copolymer, for example, aliphatic hydrocarbons, alicyclic hydrocarbons, and aromatic hydrocarbons can be used. It is preferable to use aromatic hydrocarbons and their halides.
• a dispersion in which the component (B) is dispersed in a solvent in a suspended state may be prepared.
• Other solvents and additives may be added for dissolution.
• solubility of the components (C) and (D) used in the above solvent is low, even if a dispersion in which the components (C) and (D) are dispersed in a solvent in a suspended state is prepared.
• Other solvents and additives may be added to dissolve the components (C) and (D), or after the solvent is removed, the components (C) and (D) are added. These may be subjected to dynamic heat treatment.
• the proportion of the specific functional group-containing copolymer in the solution is preferably from 0.1 to 60% by weight, and more preferably from 0.2 to 50% by weight.
• the ratio of the component (B) and the activator in the solution or dispersion is preferably 0.01 to 60% by weight in total, more preferably 0.05 to 50% by weight. %.
• the mixing of the solution or dispersion can be carried out by a commonly used solution stirring device, and the temperature at the time of mixing is preferably at least 20 ° C, more preferably at 30 ° C. That is all.
• an appropriate catalyst may be added to promote the crosslinking reaction.
• dynamic heat treatment refers to a treatment for performing both a treatment for applying a shearing force and a heating treatment.
• Such dynamic heat treatment is performed, for example, by melt kneading. It can be performed using an apparatus.
• This melt-kneading apparatus may be of a patch type or a continuous type.
• Specific examples of the melt-kneading apparatus include an open-type mixer roll, a non-open-type Banbury mixer, a patch-type melt-kneading apparatus such as a kneader, a single-screw extruder, a co-rotating continuous twin-screw extruder, and a different direction.
• a continuous melt kneading device such as a rotary continuous twin screw extruder can be used.
• a method for preparing a specific elastomer material by subjecting a mixture containing the following components to cross-linking by continuously subjecting it to dynamic heat treatment due to shear heat generation by a twin-screw extruder.
• the processing conditions in the dynamic heat treatment are as follows: the melting point of the specific functional group-containing copolymer used as the component (A), the type of the metal compound used as the component (B), and the polymer resin used as the component (C).
• the processing temperature is 120-350 ° C, preferably 150-290 ° C, and the processing time is 20-320 minutes, preferably 30-second. 25 minutes.
• the shear force applied to the mixture is 10 to 20,000 / sec, preferably 100 to 10,000 / sec, in shear rate.
• the specific elastomeric material obtained in this way has a melt flow rate (MFR) measured at a temperature of 230 ° C and a load of 10 kg of more than 0.1 S gZl Omin, especially 1 g / 1 It is preferably at least Omin, the permanent elongation is preferably at most 30%, particularly preferably at most 25%, and the durometer A hardness is at most 96, especially at most 90.
• MFR melt flow rate
• the automotive molding of the present invention has a portion made of a specific elastomer material. Even if the whole is made of a specific elastomer material, only a part thereof is made of a specific elastomer material. It may be. Also, in an automotive molding in which only one part is made of a specific elastomer material, the part made of the specific elastomer material may be, for example, any of a core material, an intermediate layer, and a skin material. Since the elastomer material has excellent weather resistance and scratch resistance, and has high gloss, the effect of the present invention is sufficiently exhibited when the skin material is made of a specific elastomer material. .
• the thickness of such a skin material is preferably from 0.01 to 1 Omm, particularly preferably from 0.02 to L mm.
• the base material on which the skin material is formed is made of rubber, plastic, thermoplastic elastomer, glass, metal, cloth or wood. Can be used.
• the rubber includes ethylene ' ⁇ -olefin copolymer rubber and its anhydrous maleic acid graft polymer, ethylene' ⁇ -olefin 'non-conjugated gen copolymer rubber, styrene butadiene rubber, butadiene rubber, isoprene rubber. And hydrogenated rubber, acrylic rubber, silicone rubber, fluoro rubber, buty rubber, natural rubber, and the like.
• Plastics include ionomers, aminoacrylamide polymers, polyethylene and its maleic anhydride grafted polymers, polyisobutylene, ethylene vinyl chloride polymers, ethylene vinyl alcohol polymers, ethylene vinyl acetate copolymers, polyethylene oxide, and ethylene acrylics.
• thermoplastic elastomers include chlorinated polyethylene thermoplastic elastomers
• Syndiotactic 1,2-polybutadiene simple blend type olefin thermoplastic elastomer, implant type olefin thermoplastic elastomer, dynamic crosslinked olefin thermoplastic elastomer, polychlorinated thermoplastic elastomer, polyurethane Thermoplastic elastomer, polyester-based thermoplastic elastomer, polyamide-based thermoplastic elastomer, fluorine-based thermoplastic elastomer, styrene-hydrogenated butadiene rubber, styrene-hydrogenated anhydride of butadiene rubber, maleic anhydride graft Polymer, hydrogenated butadiene rubber, maleic anhydride grafted polymer of hydrogenated butadiene rubber, hydrogenated maleic anhydride of isoprene rubber, grafted maleic anhydride of hydrogenated isoprene rubber, water of styrene-isoprene rubber Soup,
• Metals include stainless steel, aluminum, iron, copper, nickel, zinc, lead, tin, and alloys such as nickel-zinc alloy, iron-zinc alloy, lead-tin alloy used in automobiles, ships, home appliances, etc. And the like.
• the skin material can be obtained by molding a specific elastomeric material.
• the components (A), (B) and other components used as required are combined with the components (A) and (B).
• By mixing under appropriate conditions under which a crosslinked structure can be formed with the components it can also be obtained by performing the step of preparing a specific elastomer material and the molding step in a single step.
• the molding method is not particularly limited.
• it is useful as a molding method of a thermoplastic resin.
• Various methods used can be used, but extrusion molding, calendar molding, solvent casting, injection molding, vacuum molding, powder slush molding, and hot pressing are preferred. Among these, extrusion molding, injection molding, and solvent casting are particularly preferred.
• the molding temperature is determined by the melting point of the specific functional group-containing copolymer and polymer compound constituting the specific elastomer material.
• the temperature is appropriately set according to the type of molding machine to be used and the like, but is usually 120 to 350 ° C.
• the base material serving as the lower layer is made of a thermoplastic resin or a thermoplastic elastomer
• a specific elastomer material is applied to the surface of the base material prepared in advance.
• the skin material may be formed by extrusion molding, but two or more extruders are connected to one die and the thermoplastic resin is supplied to one extruder and to the other extruder.
• the base material and the skin material as the lower layer may be simultaneously formed inside the die.
• Such a method is described in, for example, Japanese Patent Application Laid-Open No. 2001-10418.
• the base material as the lower layer is made of a thermoplastic resin or a thermoplastic elastomer
• the base material prepared in advance is placed in a mold, and
• the skin material may be formed by injection molding the elastomer material, but using two injection molding machines and one mold, supplying the specific elastomer material to one of the injection molding machines and By supplying the thermoplastic resin to the other injection molding machine and operating the two injection molding machines continuously, the lower layer base material and skin material are continuously molded in the mold. May be.
• the solvent is not particularly limited as long as it can dissolve a specific elastomer material, and examples thereof include aliphatic hydrocarbons, alicyclic hydrocarbons, aromatic hydrocarbons, and the like. It is preferable to use these halides, and specific examples thereof include butane, pentane, hexane, heptane, 2-butane, 2-methyl-2-butane, cyclopentane, methylcyclopentane, and cyclohexane. , Isooctane, benzene, tonolene, xylene, benzene, dichloromethane, dichloroethane and the like.
• the solvent casting method is a method in which each component is dried or dispersed in an appropriate solvent, and the resulting liquid is cast to remove the solvent, followed by heat crosslinking, or by heating after casting.
• a solution or dispersion obtained by dissolving or dispersing the metal compound is mixed with a solution or dispersion obtained by dissolving or dispersing the components used as necessary, such as the component (C) and the component (D).
• a method in which the resulting mixed solution is cast to remove the solvent and then heat crosslinking, or a method in which the solvent is removed and the crosslinking is simultaneously performed by heating after casting.
• the molding for automobiles of the present invention has excellent scratch resistance and weather resistance, has high gloss, and is formed of a specific elastomer material having good rubber elasticity and mechanical properties. It can be preferably applied as a mall, a step mall, a roof molding, a Norwegian drip molding, a front window molding, a quarter wind molding, a food top molding or a bumper molding.
• Mw molecular weight
• Magnesium stearate Magnesium stearate.
• Polypropylene resin with an MFR (temperature of 230 ° C, load of 2.16 kg) of 20 gZl 0 min (manufactured by Chisso Corporation, product name “XF 9520”).
• Anti-aging agent (D-1) isobutyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl):
• Carbon black master patch (polypropylene resin base, carbon black content 30% by weight, manufactured by Dainichi Seika Kogyo Co., Ltd., product name "PPM-77255").
• Specific functional group-containing copolymer 100 parts by weight, metal compound (B-1) 1 • 5 parts by weight, metal compound (B-2) 6.0 parts by weight, polyethylene resin (C-1) 20 parts by weight, polypropylene resin (C-2) 7 parts by weight, antioxidant (D-1) 0 • 3 parts by weight and 1.7 parts by weight of colorant (E-1) are charged into a 10-L double-arm pressurized kneader (Mollyama) heated to 230 ° C for 20 minutes at 40 rpm. Kneaded (shear speed 200 s- 1 ).
• the obtained molten kneaded mass was granulated by a feeder-ruder (manufactured by Moriyama Co., Ltd.) set at 180 ° C. and 40 rpm to obtain a pelletized specific elastomer material.
• melt flow rate (MFR) of the obtained specific elastomer material was measured at a temperature of 230 ° C and a load of 10 kg as an index of fluidity. The results are shown in Table 1.
• the obtained pellets of the specific elastomer material were pressed by an electric heat press machine (manufactured by Kansai Roll Co., Ltd.) at a mold temperature of 180 ° C, a pressurization heating time of 10 minutes, and a pressurization cooling time of 5
• a sheet with a thickness of 2 mm, a width of 120 mm and a width of 120 mm was obtained.
• a durometer A hardness as an index of flexibility, a permanent elongation as an index of rubber elasticity, a tensile strength at break and a tensile elongation at break as mechanical strength, and a specific gravity were measured by the following methods. Table 1 shows the above results.
• An extrusion die for manufacturing automotive moldings a first extruder (Ikegai, model “FS-40”), and a second extruder (Ikegai, model “VS25”) -25H), and both the first extruder and the second extruder were connected to the mold die, where the screw of the first extruder was a single-screw Darmage screw, The ratio of the length L of the U-flight portion to the diameter D of the screw is D / 0 is 25.
• the screw of the second extruder is a single-screw full-fly L / D, which is the ratio of the length L of the screw flight portion to the diameter D of the screw, is 25.
• the temperature of the cylinder in each extruder was set to 210 ° C, and a polypropylene resin (C-12) was supplied to the first extruder and a specific elastomer material was supplied to the second extruder.
• a polypropylene resin (C-12) was supplied to the first extruder and a specific elastomer material was supplied to the second extruder.
• the heated and melted polypropylene resin (C-12) and a specific elastomer material are injected into the mold dies, resulting in a width of 25 mm and a thickness of 2 mm. mm polypropylene resin
• a laminate in which a 0.5 mm thick skin material made of a specific elastomer material was formed on the surface of a substrate made of (C-12) was produced.
• the obtained laminate was cooled by being conveyed by a belt conveyor equipped with a water spray, and then the laminate was cut into predetermined dimensions to produce a molding for automobiles.
• Gloss was measured using a Darros meter (“GM-26D” manufactured by Murakami Color Research Laboratory) at an incident angle of 60 degrees.
• thermoplastic elastomer dynamically cross-linked olefin-based thermoplastic elastomer “Milastomer 700B” manufactured by Mitsui Chemicals, Inc.
• C-12 polypropylene resin
• an extruder manufactured by Ikegai Co., Ltd., model “FS-40”, single screw / mage screw, ratio of the length L of the screw flight section to the diameter D of the screw ”
• the cylinder temperature with L / D of 25 was set to 210 ° C
• a specific elastomer material prepared in the same manner as in Example 1 was supplied to this extruder, and a stainless steel (SUS A 304 mm) belt (width 25 mm, thickness 2 mm) is supplied, and a 0.5 mm thick skin material made of a specific elastomer material is formed on the surface of a stainless steel base material.
• the obtained laminate is cooled by being conveyed by a belt conveyor with a water spray, and then the laminate is cut into a predetermined size to produce a molding for automobiles.
• the evaluation was performed. Table 1 shows the results.
• Specific functional group-containing copolymer (A-1) 100 parts by weight, antioxidant (D-1) 0 3 parts by weight and 1.7 parts by weight of the coloring agent (E-1) were put into a 10-liter double-arm press kneader (manufactured by Moriyama) heated to 230 ° C, and then 40 rpm For 20 minutes (shear speed 200 s- 1 ). Thereafter, the obtained molten kneaded mass was granulated by a feeder-ruder (manufactured by Moriyama) set at 180 ° C and 40 rpm to obtain a pelletized elastomer material ( Hereinafter, this is referred to as “comparative elastomer material”.)
• the obtained pellets of the comparative elastomer material were pressed by an electric heat press machine (manufactured by Kansai Roll Co., Ltd.) at a mold temperature of 180 ° C, a pressurization heating time of 10 minutes, and a pressurization cooling time.
• a thermoplastic thermoplastic elastomer sheet having a thickness of 2 mm, a vertical width of 120 mm, and a horizontal width of 120 mm.
• the evaluation of this olefin thermoplastic sheet was carried out in the same manner as in Example 1. Table 1 shows the results.
• thermoplastic elastomer a dynamically crosslinked oil-based thermoplastic elastomer “Milastomer-1 7030 B” manufactured by Mitsui Chemicals, Inc.
• An automobile molding was manufactured and evaluated in the same manner as in Example 1, except that a comparative elastomer material was supplied to the second extruder instead of the specific elastomer material. Table 1 shows the results.

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• Polymers & Plastics (AREA)
• Organic Chemistry (AREA)
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• Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
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• Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

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• 2002
  • 2002-12-27 JP JP2002379678A patent/JP2004210868A/ja active Pending
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