FR2374358A1 - BIAXIALLY ORIENTED FILM-FORMING AND FILM COMPOSITION PREPARED WITH THIS COMPOSITION - Google Patents

BIAXIALLY ORIENTED FILM-FORMING AND FILM COMPOSITION PREPARED WITH THIS COMPOSITION

Info

Publication number
FR2374358A1
FR2374358A1 FR7738913A FR7738913A FR2374358A1 FR 2374358 A1 FR2374358 A1 FR 2374358A1 FR 7738913 A FR7738913 A FR 7738913A FR 7738913 A FR7738913 A FR 7738913A FR 2374358 A1 FR2374358 A1 FR 2374358A1
Authority
FR
France
Prior art keywords
molecular weight
composition
film
biaxially oriented
forming
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
FR7738913A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hercules LLC
Original Assignee
Hercules LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hercules LLC filed Critical Hercules LLC
Publication of FR2374358A1 publication Critical patent/FR2374358A1/en
Withdrawn legal-status Critical Current

Links

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
    • C08L23/10—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
    • C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
    • C08L25/02—Homopolymers or copolymers of hydrocarbons
    • C08L25/16—Homopolymers or copolymers of alkyl-substituted styrenes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
    • C08L25/02—Homopolymers or copolymers of hydrocarbons
    • C08L25/04—Homopolymers or copolymers of styrene
    • C08L25/06—Polystyrene

Abstract

Cette composition nouvelle comprend de 80 % à 98 % environ d'un polypropylène stéréorégulier et de 2 % à 20 % d'un polymère de styrène non hydrogéné. Ce dernier est un mélange de 25 % à 100 % d'un polymère de styrène à bas poids moléculaire et de 0 % à 75 % de polystyrène à haut poids moléculaire. Le polymère de styrène à bas poids moléculaire a un poids moléculaire moyen compris entre 600 et 6 000 environ et un point de ramolissement (point de goutte) compris entre 70 degrés C et 145 degrés C environ, tandis que le polystyrène à haut poids moléculaire a un poids moléculaire moyen supérieur à 6 000. Les films obtenus avec cette composition, lorsqu'ils sont orientés biaxialement, ont une bonne aptitude au thermosoudage, une faible tendance au blocage et une bonne transparence.This novel composition comprises from 80% to 98% approximately of a stereoregular polypropylene and from 2% to 20% of an unhydrogenated styrene polymer. The latter is a mixture of 25% to 100% of a low molecular weight styrene polymer and 0% to 75% of high molecular weight polystyrene. Low molecular weight styrene polymer has an average molecular weight of between about 600 and 6000 and a softening point (dropping point) of between about 70 degrees C and 145 degrees C, while high molecular weight polystyrene has an average molecular weight greater than 6000. Films obtained with this composition, when biaxially oriented, have good heat sealability, low blocking tendency and good transparency.

FR7738913A 1976-12-15 1977-12-13 BIAXIALLY ORIENTED FILM-FORMING AND FILM COMPOSITION PREPARED WITH THIS COMPOSITION Withdrawn FR2374358A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75098376A 1976-12-15 1976-12-15

Publications (1)

Publication Number Publication Date
FR2374358A1 true FR2374358A1 (en) 1978-07-13

Family

ID=25019959

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7738913A Withdrawn FR2374358A1 (en) 1976-12-15 1977-12-13 BIAXIALLY ORIENTED FILM-FORMING AND FILM COMPOSITION PREPARED WITH THIS COMPOSITION

Country Status (13)

Country Link
JP (1) JPS5374547A (en)
AU (1) AU510913B2 (en)
BE (1) BE861862A (en)
BR (1) BR7708324A (en)
CA (1) CA1104737A (en)
DE (1) DE2755446A1 (en)
ES (1) ES465053A1 (en)
FR (1) FR2374358A1 (en)
GB (1) GB1550570A (en)
IT (1) IT1089965B (en)
LU (1) LU78701A1 (en)
MX (1) MX3553E (en)
NL (1) NL7713913A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0079520A2 (en) * 1981-11-12 1983-05-25 Hoechst Aktiengesellschaft Biaxially stretched polyolefin film with an elasticity modulus in the longitudinal direction of more than 4000 N/mm2
EP0079519A2 (en) * 1981-11-12 1983-05-25 Hoechst Aktiengesellschaft Adhesive tape
EP0195505A2 (en) * 1985-02-06 1986-09-24 Mitsubishi Kasei Corporation Polypropylene resin composition and biaxially stretched film thereof

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4394235A (en) 1980-07-14 1983-07-19 Rj Archer Inc. Heat-sealable polypropylene blends and methods for their preparation
US4579912A (en) * 1983-11-21 1986-04-01 Mobil Oil Corporation Films of blends of linear ethylene polymers and aromatic polymers
JPS62104852A (en) * 1985-10-21 1987-05-15 Chisso Corp Polyolefin based resin composition
US8853327B2 (en) 2010-10-15 2014-10-07 Exxonmobil Chemical Patents Inc. Methods and apparatus for forming blends of polyolefin and resin modifier

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0079520A2 (en) * 1981-11-12 1983-05-25 Hoechst Aktiengesellschaft Biaxially stretched polyolefin film with an elasticity modulus in the longitudinal direction of more than 4000 N/mm2
EP0079519A2 (en) * 1981-11-12 1983-05-25 Hoechst Aktiengesellschaft Adhesive tape
EP0079519A3 (en) * 1981-11-12 1983-06-22 Hoechst Aktiengesellschaft Adhesive tape
EP0079520A3 (en) * 1981-11-12 1984-10-17 Hoechst Aktiengesellschaft Biaxially stretched polyolefin film with an elasticity modulus in the longitudinal direction of more than 4000 n/mm2
EP0195505A2 (en) * 1985-02-06 1986-09-24 Mitsubishi Kasei Corporation Polypropylene resin composition and biaxially stretched film thereof
EP0195505A3 (en) * 1985-02-06 1988-01-07 Mitsubishi Chemical Industries Limited Polypropylene resin composition and biaxially stretched film thereof

Also Published As

Publication number Publication date
JPS5374547A (en) 1978-07-03
LU78701A1 (en) 1978-06-21
BR7708324A (en) 1978-09-05
GB1550570A (en) 1979-08-15
AU3154077A (en) 1979-06-21
ES465053A1 (en) 1979-01-01
IT1089965B (en) 1985-06-18
NL7713913A (en) 1978-06-19
DE2755446A1 (en) 1978-06-22
CA1104737A (en) 1981-07-07
AU510913B2 (en) 1980-07-17
BE861862A (en) 1978-06-14
MX3553E (en) 1981-03-02

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Legal Events

Date Code Title Description
ST Notification of lapse