GB800744A - Improvements in or relating to the production of thermoplastic compositions - Google Patents

Improvements in or relating to the production of thermoplastic compositions

Info

Publication number
GB800744A
GB800744A GB547056A GB547056A GB800744A GB 800744 A GB800744 A GB 800744A GB 547056 A GB547056 A GB 547056A GB 547056 A GB547056 A GB 547056A GB 800744 A GB800744 A GB 800744A
Authority
GB
United Kingdom
Prior art keywords
weight
added
methyl
per cent
stage
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
GB547056A
Inventor
Peter George Edgerley
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 to NL214740D priority Critical patent/NL214740A/xx
Priority to NL99350D priority patent/NL99350C/xx
Priority to BE555177D priority patent/BE555177A/xx
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB547056A priority patent/GB800744A/en
Priority to DEI12849A priority patent/DE1103029B/en
Publication of GB800744A publication Critical patent/GB800744A/en
Expired 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
    • C08L7/00—Compositions of natural rubber
    • 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
    • C08F257/00—Macromolecular compounds obtained by polymerising monomers on to polymers of aromatic monomers as defined in group C08F12/00
    • C08F257/02—Macromolecular compounds obtained by polymerising monomers on to polymers of aromatic monomers as defined in group C08F12/00 on to polymers of styrene or alkyl-substituted styrenes
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L51/04—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to rubbers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
    • C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers

Landscapes

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

Abstract

Butadiene with lesser amount but not less than 10 per cent of its weight of a copolymerizable monoethylenically unsaturated compound is polymerized in aqueous dispersion in a stirred closed vessel until 60-90 per cent by weight of the monomeric mixture has been converted to copolymer, additional monomeric monoethylenically unsaturated material copolymerizable with the residual monomers is then added in such amount that there is present a greater proportion by weight of monomeric monoethylenically unsaturated material than polyolefinic monomer and polymerization is continued to completion. Suitable vinylidene monomers are styrene, a -methyl styrene, vinyl carbazole, vinyl acetate, vinyl pyridine, acrylonitrile, methacrylonitrile, methyl acrylate, methyl methacrylate, methacrylamide, methacrylic acid, and methyl a -chloroacrylate. The products are similar to a mixture of a rubbery copolymer of butadiene and for example styrene with a resinous copolymer of styrene and butadiene, and are useful for reinforcing natural rubber, compositions with rubber preferably contain 30-40 parts by weight per 100 parts of natural rubber. In Example (1) details are given of a specific vulcanization recipe for such a composition containing natural rubber. The amounts of monomers added in the first and second stages are preferably chosen so that the final product contains 40 to 95 per cent by weight of resinous copolymer chains and correspondingly 60 to 5 per cent by weight of rubbery copolymer chains. 0.05 to 1 per cent based on the monomer weight of a polymerization modifier is preferably added either wholly in the first stage or part in the second stage, examples being di (sec. butyl) disulphide, di (2-methyl butyl) disulphide, dialkyl xanthogen disulphides, diortho dinitrophenyl disulphide and dodecyl mercaptan. One or more emulsifying agents are also added either wholly in the first stage or part in the second stage, examples being sodium lauryl, oleyl and cetyl sulphates, sodium salts of sulphonated castor oil or sulphonated or sulphated methyl oleate, sodium oleate, palmitate or stearate and the hydrogenated or dehydrogenated rosin acid soaps. Catalysts include hydrogen peroxide, potassium persulphate, cumene hydroperoxide and benzoyl peroxide, with the latter two a heavy metal salt and sorbose or fructose may be added. Water-soluble peroxide catalysts can be used at 30-60 DEG C. and redox catalysts at lower temperatures down to 5 DEG C. At temperatures below 0 DEG C. a compound such as methanol must be added to prevent freezing.
GB547056A 1956-02-22 1956-02-22 Improvements in or relating to the production of thermoplastic compositions Expired GB800744A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL214740D NL214740A (en) 1956-02-22
NL99350D NL99350C (en) 1956-02-22
BE555177D BE555177A (en) 1956-02-22
GB547056A GB800744A (en) 1956-02-22 1956-02-22 Improvements in or relating to the production of thermoplastic compositions
DEI12849A DE1103029B (en) 1956-02-22 1957-02-20 Process for the preparation of polymerization products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB547056A GB800744A (en) 1956-02-22 1956-02-22 Improvements in or relating to the production of thermoplastic compositions

Publications (1)

Publication Number Publication Date
GB800744A true GB800744A (en) 1958-09-03

Family

ID=9796780

Family Applications (1)

Application Number Title Priority Date Filing Date
GB547056A Expired GB800744A (en) 1956-02-22 1956-02-22 Improvements in or relating to the production of thermoplastic compositions

Country Status (4)

Country Link
BE (1) BE555177A (en)
DE (1) DE1103029B (en)
GB (1) GB800744A (en)
NL (2) NL214740A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2230664A1 (en) * 1973-05-23 1974-12-20 Arco Polymers Inc

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB649166A (en) * 1948-06-04 1951-01-17 Us Rubber Co Improvements in preparation of mixtures of synthetic resins
GB744455A (en) * 1953-01-15 1956-02-08 Union Carblde And Carbon Corp Improvements in shock-resistant plastic compositions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2230664A1 (en) * 1973-05-23 1974-12-20 Arco Polymers Inc

Also Published As

Publication number Publication date
BE555177A (en)
NL99350C (en)
DE1103029B (en) 1961-03-23
NL214740A (en)

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