GB946384A - Improvements in and relating to polymers - Google Patents

Improvements in and relating to polymers

Info

Publication number
GB946384A
GB946384A GB13511/62A GB1351162A GB946384A GB 946384 A GB946384 A GB 946384A GB 13511/62 A GB13511/62 A GB 13511/62A GB 1351162 A GB1351162 A GB 1351162A GB 946384 A GB946384 A GB 946384A
Authority
GB
United Kingdom
Prior art keywords
modifying agent
modified
anhydride
acid
homo
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.)
Expired
Application number
GB13511/62A
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Publication of GB946384A publication Critical patent/GB946384A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
    • C08F255/02—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having two or three carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/50—Partial depolymerisation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2800/00—Copolymer characterised by the proportions of the comonomers expressed
    • C08F2800/10—Copolymer characterised by the proportions of the comonomers expressed as molar percentages
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2810/00—Chemical modification of a polymer
    • C08F2810/10—Chemical modification of a polymer including a reactive processing step which leads, inter alia, to morphological and/or rheological modifications, e.g. visbreaking

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A modified homopolymer of an alpha-monoolefine or a modified copolymer thereof with either at least one other polymerizable monomer containing the CH2=C< radical or carbon monoxide is produced by heating said homo- or copolymer having a molecular weight of at least 10,000 with a modifying agent which is an organic carboxylic acid or an acid anhydride or acid ester derived therefrom at a temperature from 225 DEG C. to 400 DEG C. under autogenous pressure for 0.5 to 10 minutes. The modifying agent may be a saturated or unsaturated aliphatic monocarboxylic acid having from 2 to 6 or 3 to 6 carbon atoms respectively, e.g. acetic, propionic, butyric, valeric, caproic, acrylic, crotonic and sorbic acids or an anhydride or ester of such acids, the alkyl esters having from 1 to 6 carbon atoms in the alkyl chain. Unsaturated aliphatic dicarboxylic acids having from 4 to 8 carbon atoms may also be used e.g. maleic, tetrahydrophthalic, fumaric, glutaconic and itaconic acids or their anhydrides or alkyl esters having from 1 to 6 carbon atoms in the alkyl chain. Phthalic anhydride or pyromellitic anhydride may be used. Copolymerizable monomers mentioned are butene-1, propylene, ethyl acrylate, vinyl acetate, methylmethacrylate, divinyl ether, acrylic acid and bicyclo [2.2.1]-2-heptene. The amount of modifying agent is preferably from 0.25 to 10% by weight based on the combined weight of polymer and modifying agent. The homo- or copolymer and modifying agent may be blended in an extruder and then passed into a reaction zone or the reaction may be carried out in the extruder; alternatively the molten modifying agent or a solution of the modifying agent may be added to the molten polymer as it leaves the extruder. The modified polyolefines may be cured by heating from 50 DEG to 180 DEG C. to produce cross-linked polymers. Modified polyethylene produced by the invention may be vulcanized, for example, by heating 100 parts of the resin with 40 parts of PbO and 3 parts of mercaptobenzothiazole at 150 DEG C. and 250 p.s.i.a. for 30 minutes; or plaques of it may be dyed or it may be used to coat steel, paper, "Cellophane" and "Mylar". (Registered Trade Marks).ALSO:Steel, paper, "Cellophane" and "Mylar" (Registered Trade Marks) can be coated with a modified homopolymer of an a -mono-olefine or a modified copolymer thereof with either at least one other polymerizable monomer containing a CH2=C< radical or carbon monoxide, said modified homo- or co-polymer being prepared by heating the homo- or co-polymer having a molecular weight of at least 10,000 with a modifying agent which is an organic carboxylic acid or an acid anhydride or an acid ester derived therefrom, at a temperature from 225 to 400 DEG C. under autogeneous pressure for 0,5 to 10 minutes (see Division C3). For example a smooth adherent, continuous, coating of a maleic anhydride modified polyethylene may be formed on a mild steel specimen by dipping the latter in a hot 10% solution of the resin in toluene and baking to remove the solvent.
GB13511/62A 1961-04-12 1962-04-09 Improvements in and relating to polymers Expired GB946384A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10240761A 1961-04-12 1961-04-12

Publications (1)

Publication Number Publication Date
GB946384A true GB946384A (en) 1964-01-15

Family

ID=22289684

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13511/62A Expired GB946384A (en) 1961-04-12 1962-04-09 Improvements in and relating to polymers

Country Status (4)

Country Link
BE (1) BE616225A (en)
BR (1) BR6237778D0 (en)
GB (1) GB946384A (en)
SE (1) SE323518B (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3620878A (en) * 1968-07-26 1971-11-16 Grace W R & Co Bonding with ethylene copolymer adhesive and adhesion promoting agent
US3700754A (en) * 1967-02-23 1972-10-24 American Cyanamid Co Compositions of polymers of methyl methacrylate and polymers of ethylene
DE2401149A1 (en) * 1973-01-10 1974-07-18 Du Pont ADDUCT OF MALEIC ACID ANHYDRIDE AND AN ELASTOMER COPOLYMERISATE, THERMOPLASTIC ELASTOMER AND PROCESS FOR THE PRODUCTION OF THE SAME
US4058581A (en) * 1972-07-24 1977-11-15 Exxon Research & Engineering Co. Method of making thermoplastic resin composite
US4877685A (en) * 1986-05-28 1989-10-31 Neste Oy Modified polyolefine
US5189120A (en) * 1986-11-20 1993-02-23 Basf Aktiengesellschaft Peroxide-free grafting of homopolymers and copolymers of ethylene having densities less than 0.930 g/cm3, and use of the graft copolymers for the preparation of ionomers or adhesion promoters
US5194509A (en) * 1986-11-20 1993-03-16 Basf Aktiengesellschaft Peroxide-free grafting of homopolymers and copolymers of ethylene having densities equal to or greater than 0.930 g/cm3, and use of the graft copolymers for the preparation of ionomers of adhesion promoters
EP0739913A1 (en) * 1995-04-25 1996-10-30 Elf Atochem S.A. Polyolefins or polystyrenes copolymerised and grafted with monomers with the same functional groups
WO1999020817A1 (en) * 1997-10-22 1999-04-29 Deutsche Institute für Textil- und Faserforschung Stuttgart Method for producing aqueous liquor dyeable modified polypropylene threads and the use thereof
WO2001036495A1 (en) * 1999-11-16 2001-05-25 Eastman Chemical Company Process for reducing the weight average molecular weight and melt index ratio of polyethylenes and polyethylene products
WO2016083530A1 (en) * 2014-11-26 2016-06-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. Polymers modified by means of a modifying reagent and method for producing same

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3700754A (en) * 1967-02-23 1972-10-24 American Cyanamid Co Compositions of polymers of methyl methacrylate and polymers of ethylene
US3620878A (en) * 1968-07-26 1971-11-16 Grace W R & Co Bonding with ethylene copolymer adhesive and adhesion promoting agent
US4058581A (en) * 1972-07-24 1977-11-15 Exxon Research & Engineering Co. Method of making thermoplastic resin composite
DE2401149A1 (en) * 1973-01-10 1974-07-18 Du Pont ADDUCT OF MALEIC ACID ANHYDRIDE AND AN ELASTOMER COPOLYMERISATE, THERMOPLASTIC ELASTOMER AND PROCESS FOR THE PRODUCTION OF THE SAME
US4877685A (en) * 1986-05-28 1989-10-31 Neste Oy Modified polyolefine
US5194509A (en) * 1986-11-20 1993-03-16 Basf Aktiengesellschaft Peroxide-free grafting of homopolymers and copolymers of ethylene having densities equal to or greater than 0.930 g/cm3, and use of the graft copolymers for the preparation of ionomers of adhesion promoters
US5189120A (en) * 1986-11-20 1993-02-23 Basf Aktiengesellschaft Peroxide-free grafting of homopolymers and copolymers of ethylene having densities less than 0.930 g/cm3, and use of the graft copolymers for the preparation of ionomers or adhesion promoters
EP0739913A1 (en) * 1995-04-25 1996-10-30 Elf Atochem S.A. Polyolefins or polystyrenes copolymerised and grafted with monomers with the same functional groups
WO1999020817A1 (en) * 1997-10-22 1999-04-29 Deutsche Institute für Textil- und Faserforschung Stuttgart Method for producing aqueous liquor dyeable modified polypropylene threads and the use thereof
US6555038B1 (en) 1997-10-22 2003-04-29 Deutsche Institute Fur Textil - Und Faserforschung Stuttgart Method for producing aqueous liquor dyeable modified polypropylene threads and the use thereof
WO2001036495A1 (en) * 1999-11-16 2001-05-25 Eastman Chemical Company Process for reducing the weight average molecular weight and melt index ratio of polyethylenes and polyethylene products
US6433133B1 (en) 1999-11-16 2002-08-13 Eastman Chemical Company Process for reducing the weight average molecular weight and melt index ratio of polyethylenes and polyethylene products
WO2016083530A1 (en) * 2014-11-26 2016-06-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. Polymers modified by means of a modifying reagent and method for producing same

Also Published As

Publication number Publication date
SE323518B (en) 1970-05-04
BR6237778D0 (en) 1973-01-11
BE616225A (en) 1962-07-31

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