GB897839A - Improvements in the preparation of resins - Google Patents

Improvements in the preparation of resins

Info

Publication number
GB897839A
GB897839A GB1710/61A GB171061A GB897839A GB 897839 A GB897839 A GB 897839A GB 1710/61 A GB1710/61 A GB 1710/61A GB 171061 A GB171061 A GB 171061A GB 897839 A GB897839 A GB 897839A
Authority
GB
United Kingdom
Prior art keywords
styrene
water
acrylonitrile
tert
salts
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
GB1710/61A
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.)
Pfizer Inc
Original Assignee
Pfizer Inc
Charles Pfizer and Co Inc
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 Pfizer Inc, Charles Pfizer and Co Inc filed Critical Pfizer Inc
Publication of GB897839A publication Critical patent/GB897839A/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
    • C08F222/00—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 a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
    • C08F222/10—Esters
    • C08F222/12—Esters of phenols or saturated alcohols
    • C08F222/14—Esters having no free carboxylic acid groups, e.g. dialkyl maleates or fumarates
    • 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
    • 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

Abstract

Thermoplastic resins are made by copolymerizing in a suspension medium, e.g. water, a mixture of a styrene, an itaconic diester and acrylonitrile which contains from 3 to 20% by weight of acrylonitrile. Styrene monomers specified are styrene, o-, m and p methyl styrenes and 2,4-, 3,4- and 3,5-dimethyl styrenes. Itaconic diesters specified are the dimethyl, diethyl, di-n-propyl, diisopropyl, dibutyl, diisobutyl, dicyclohexyl, ethyl propyl and ethyl cyclohexyl itaconates. The suspension polymerization in water may be carried out with the aid of a suspending agent, e.g. an alkaline earth carbonate, phosphate or silicate, talc, starch, gelatin, salts of polyacrylic and polymethacrylic acids, salts of styrene-maleic anhydride copolymers, polyvinyl alcohol, pectin, alginates, methyl hydroxyethyl and carboxymethyl celluloses, gum acacia and gum tragacanth. The examples describe the use, as a suspending agent, of a slurry of calcium hydroxyphosphate in water which contains sodium, dodecylbenzene sulphonate. Polymerization may be catalyzed by peroxidic compounds such as benzoyl, lauroyl and di-tert. butyl peroxides and tert. butyl perbenzoate.
GB1710/61A 1960-04-25 1961-01-16 Improvements in the preparation of resins Expired GB897839A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2420060A 1960-04-25 1960-04-25

Publications (1)

Publication Number Publication Date
GB897839A true GB897839A (en) 1962-05-30

Family

ID=21819369

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1710/61A Expired GB897839A (en) 1960-04-25 1961-01-16 Improvements in the preparation of resins

Country Status (2)

Country Link
DE (1) DE1132335B (en)
GB (1) GB897839A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3232902A (en) * 1961-09-20 1966-02-01 L I R C Lab Italiani Di Ricerc Thermoplastic compositions on the basis of styrene, butadiene, acrylonitrile and dimethyl-itaconate copolymers
US4782127A (en) * 1985-07-08 1988-11-01 The Dow Chemical Company Styrenic polymer resins having improved flow characteristics

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3232902A (en) * 1961-09-20 1966-02-01 L I R C Lab Italiani Di Ricerc Thermoplastic compositions on the basis of styrene, butadiene, acrylonitrile and dimethyl-itaconate copolymers
US4782127A (en) * 1985-07-08 1988-11-01 The Dow Chemical Company Styrenic polymer resins having improved flow characteristics

Also Published As

Publication number Publication date
DE1132335B (en) 1962-06-28

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