GB1475449A - Process for copolymerizing styrene and acrylonitrile - Google Patents

Process for copolymerizing styrene and acrylonitrile

Info

Publication number
GB1475449A
GB1475449A GB827275A GB827275A GB1475449A GB 1475449 A GB1475449 A GB 1475449A GB 827275 A GB827275 A GB 827275A GB 827275 A GB827275 A GB 827275A GB 1475449 A GB1475449 A GB 1475449A
Authority
GB
United Kingdom
Prior art keywords
weight
acrylonitrile
styrene
copolymerization
rubber
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
GB827275A
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.)
Labofina SA
Original Assignee
Labofina SA
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
Priority claimed from BE141534A external-priority patent/BE811750A/en
Priority claimed from BE149843A external-priority patent/BE821433A/en
Application filed by Labofina SA filed Critical Labofina SA
Publication of GB1475449A publication Critical patent/GB1475449A/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
    • C08F279/00—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00
    • C08F279/02—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00 on to polymers of conjugated dienes
    • C08F279/04—Vinyl aromatic monomers and nitriles as the only monomers
    • 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
    • C08F212/00—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
    • C08F212/02—Monomers containing only one unsaturated aliphatic radical
    • C08F212/04—Monomers containing only one unsaturated aliphatic radical containing one ring
    • C08F212/06—Hydrocarbons
    • C08F212/08—Styrene
    • C08F212/10—Styrene with nitriles
    • 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
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/42—Nitriles
    • C08F220/44—Acrylonitrile

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Graft Or Block Polymers (AREA)
  • Polymerisation Methods In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

1475449 Copolymerization of styrene/acrylonitrile LABOFINA SA 27 Feb 1975 [1 March 1974 24 Oct 1974] 8272/75 Heading C3P A process for the production of copolymers of styrene (including other vinyl aromatic monomers) and acrylonitrile (including methacrylonitrile) comprises effecting the copolymerization in the presence of 2,2<SP>1</SP>-dithiobis(benzothiazole) in an amount of at least 0À001 weight per cent, based on the weight of total monomer. The preferred process comprises: (i) mass copolymerization of styrene and acrylonitrile in the presence of at least 0À001% by weight, based on the total weight of monomer, of 2,2<SP>1</SP>- dithiobis(benzothiazole) as molecular weight regulator at a temperature of 75-125‹ C. until a copolymer mass is formed of viscosity 10,000- 100,000 cPs. (at 65‹ C.) wherein 10-30 mole per cent of the monomers have been polymerized; (ii) adding an aqueous dispersion of a suspending agent and a non-ionic or anionic surfactant, and stirring the mixture at a temperature of 75-150‹ C. in the presence of a free-radical generating catalyst. The copolymerization may be effected in the presence of a rubber wherein the mixture comprises 65-90% by weight of styrene, 35-10% by weight of acrylonitrile and 7-15% by weight of rubber, all percentages being based on the total weight of the monomers. The examples describe the copolymerization of styrene (St)/acrylonitrile (AN), St/AN/amethylstyrene, St/AN/methacrylonitrile, St/AN /p - chlorostyrene; and St/AN in the presence of rubber.
GB827275A 1974-03-01 1975-02-27 Process for copolymerizing styrene and acrylonitrile Expired GB1475449A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE141534A BE811750A (en) 1974-03-01 1974-03-01 PROCESS FOR PREPARING ABS RESINS.
BE149843A BE821433A (en) 1974-10-24 1974-10-24 PROCESS FOR PREPARING STYRENE-ACRYLONITRILE COPOLYMERS.

Publications (1)

Publication Number Publication Date
GB1475449A true GB1475449A (en) 1977-06-01

Family

ID=25647763

Family Applications (1)

Application Number Title Priority Date Filing Date
GB827275A Expired GB1475449A (en) 1974-03-01 1975-02-27 Process for copolymerizing styrene and acrylonitrile

Country Status (10)

Country Link
JP (1) JPS50124982A (en)
AT (1) AT334624B (en)
AU (1) AU7870375A (en)
CA (1) CA1033892A (en)
DE (1) DE2508996C2 (en)
ES (1) ES435205A1 (en)
FR (1) FR2262674B1 (en)
GB (1) GB1475449A (en)
IT (1) IT1033162B (en)
NL (1) NL7502394A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0046320A1 (en) * 1980-08-20 1982-02-24 Stamicarbon B.V. Process for the preparation of a copolymer
GB2299339A (en) * 1995-03-31 1996-10-02 Sumitomo Chemical Co Process for producing styrenic polymer
CN114409839A (en) * 2022-01-27 2022-04-29 万华化学集团股份有限公司 SAN resin and preparation method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6376020B2 (en) * 2015-03-30 2018-08-22 東レ株式会社 Thermoplastic resin composition and molded article thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3271375A (en) * 1964-05-18 1966-09-06 Monsanto Co Molecular weight regulation in polymerization of vinylidene monomers using heterocyclic compounds as regulators

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0046320A1 (en) * 1980-08-20 1982-02-24 Stamicarbon B.V. Process for the preparation of a copolymer
GB2299339A (en) * 1995-03-31 1996-10-02 Sumitomo Chemical Co Process for producing styrenic polymer
US5703184A (en) * 1995-03-31 1997-12-30 Sumitomo Chemical Company, Limited Process for producing styrenic polymer
GB2299339B (en) * 1995-03-31 1998-12-09 Sumitomo Chemical Co Process for producing styrenic polymer
CN114409839A (en) * 2022-01-27 2022-04-29 万华化学集团股份有限公司 SAN resin and preparation method thereof
CN114409839B (en) * 2022-01-27 2023-12-19 万华化学集团股份有限公司 SAN resin and preparation method thereof

Also Published As

Publication number Publication date
JPS50124982A (en) 1975-10-01
IT1033162B (en) 1979-07-10
ATA156375A (en) 1976-05-15
AU7870375A (en) 1976-09-02
FR2262674A1 (en) 1975-09-26
DE2508996C2 (en) 1983-09-22
ES435205A1 (en) 1977-04-01
NL7502394A (en) 1975-09-03
FR2262674B1 (en) 1978-12-29
DE2508996A1 (en) 1975-09-04
CA1033892A (en) 1978-06-27
AT334624B (en) 1976-01-25

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee