GB794400A - Improvements in rubber-and-resin compositions - Google Patents

Improvements in rubber-and-resin compositions

Info

Publication number
GB794400A
GB794400A GB23237/56A GB2323756A GB794400A GB 794400 A GB794400 A GB 794400A GB 23237/56 A GB23237/56 A GB 23237/56A GB 2323756 A GB2323756 A GB 2323756A GB 794400 A GB794400 A GB 794400A
Authority
GB
United Kingdom
Prior art keywords
styrene
acrylonitrile
synthetic rubber
copolymer
per cent
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
GB23237/56A
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.)
Uniroyal Inc
Original Assignee
United States Rubber Co
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 United States Rubber Co filed Critical United States Rubber Co
Publication of GB794400A publication Critical patent/GB794400A/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

Landscapes

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

Abstract

A rubber-resin composition comprises (A) 20 to 75 parts of an emulsion polymerized butadiene homopolymer or copolymer containing not more than 5 per cent of a copolymerized mono-olefinic compound containing a terminal methylene group, and correspondingly (B) 80 to 25 parts of an emulsion copolymer of a mixture of 25 to 90 per cent of styrene and 75 to 10 per cent of acrylonitrile, at least 25 per cent of the styrene-acrylonitrile copolymer having been prepared by emulsion polymerization in admixture with the latex of the synthetic rubber (A), the amount of dispersing agent in the latex being maintained at not more than 5 parts per 100 parts of synthetic rubber and styrene-acrylonitrile copolymer contained therein until at least half the styreneacrylonitrile monomer mixture has been converted to polymer. Polymerization of the styrene and acrylonitrile in the presence of the butadiene polymer results in the formation of graft polymers. Monomers specified which may be copolymerized with butadiene are styrene, alpha-methyl styrene, vinyl toluene, acrylonitrile, ethyl and butyl acrylates and methyl methacrylate. The polymerization of the styrene and acrylonitrile in the synthetic rubber latex is carried out in the presence of a catalyst, e.g. potassium persulphate, which may be used in conjunction with sodium bisulphite, an emulsifier, e.g. sodium stearate or a sodium rosin soap, and optionally a mercaptan, e.g. tert.-octyl mercaptan and mixed C12-C16 tert-.alkyl mercaptans; during polymerization further quantities of styrene, acrylonitrile and catalyst may be added as the reaction proceeds. If the whole amount of styrene and acrylonitrile is not polymerized in the synthetic rubber latex a copolymer of these monomers is prepared separately and then added to the synthetic rubber-styrene-acrylonitrile graft polymer; in an example of this process styrene and acrylonitrile are copolymerized in an aqueous medium containing an alkyl aryl sulphonate emulsifier in the presence of potassium persulphate, sodium bisulphite and mixed C12-C16 tertiary mercaptan. Specification 694,166 is referred to.
GB23237/56A 1955-08-01 1956-07-27 Improvements in rubber-and-resin compositions Expired GB794400A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US794400XA 1955-08-01 1955-08-01
DEU0004033 1956-07-25

Publications (1)

Publication Number Publication Date
GB794400A true GB794400A (en) 1958-04-30

Family

ID=26000800

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23237/56A Expired GB794400A (en) 1955-08-01 1956-07-27 Improvements in rubber-and-resin compositions

Country Status (1)

Country Link
GB (1) GB794400A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1292849B (en) * 1964-05-14 1969-04-17 Hitachi Chemical Co Ltd Process for graft copolymerization
DE1561767B1 (en) * 1967-10-04 1972-07-06 Bayer Ag Pen
DE3325702A1 (en) * 1982-07-26 1984-01-26 Mobay Chemical Corp., 15205 Pittsburgh, Pa. MIXTURES OF POLYCARBONATE AND ACRYLNITRIL / BUTADIENE / STYROL WITH IMPROVED IMPACT RESISTANCE

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1292849B (en) * 1964-05-14 1969-04-17 Hitachi Chemical Co Ltd Process for graft copolymerization
DE1292849C2 (en) * 1964-05-14 1973-02-08 Hitachi Chemical Co Ltd Process for graft copolymerization
DE1561767B1 (en) * 1967-10-04 1972-07-06 Bayer Ag Pen
DE3325702A1 (en) * 1982-07-26 1984-01-26 Mobay Chemical Corp., 15205 Pittsburgh, Pa. MIXTURES OF POLYCARBONATE AND ACRYLNITRIL / BUTADIENE / STYROL WITH IMPROVED IMPACT RESISTANCE

Similar Documents

Publication Publication Date Title
GB1439010A (en) Polymeric compositions and process for their manufacture
DE3368665D1 (en) Predisperded liquid or low melting solid peroxide vulcanizing agent or coagent compositions
KR950006261B1 (en) Rubber-reinforced styrewic polymer resins having improved flow and gloss characteristics
GB1509636A (en) High-impact non-ageing aes-polymers
GB1508955A (en) High-impact thermoplastic vinyl chloride polymer moulding compositions
GB1355861A (en) Vinyl halide polymer modifiers
ES457199A1 (en) Thermoplastic PVC resin compositions
GB994924A (en) High polymer compositions having high light transmission and toughness
GB1040287A (en) Improvements in or relating to the manufacture of synthetic rubber compositions
GB794400A (en) Improvements in rubber-and-resin compositions
GB1400564A (en) Foamed thermoplastic mouldings
JPS5592717A (en) High nitrile resin
GB884974A (en) Block copolymers
GB1285645A (en) Process for preparing graft copolymers
ES430775A1 (en) Process for impact modification of high nitrile polymers
GB1289192A (en)
GB1035829A (en) Moulding compositions based on elastically thermoplastic copolymer mixtures
GB877928A (en) Moulding compositions
GB1312325A (en) Solution-suspension polymerization
FR2075085A6 (en) Diene elastomer graft polymer-based therm- - oplastic moulding compn
US3655828A (en) Process for preparing a polymer composition having improved gloss and color
GB1151040A (en) Process for the manufacture of Thermoplastic Moulding Materials
GB937747A (en) Improvements in and relating to vinyl halide polymer compositions
GB751497A (en) Modified polystyrene and styrene copolymers
GB919381A (en) Improvements in and relating to thermoplastic compositions