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GB866445A - Polymerization process - Google Patents

Polymerization process

Info

Publication number
GB866445A
GB866445A GB1715/59A GB171559A GB866445A GB 866445 A GB866445 A GB 866445A GB 1715/59 A GB1715/59 A GB 1715/59A GB 171559 A GB171559 A GB 171559A GB 866445 A GB866445 A GB 866445A
Authority
GB
United Kingdom
Prior art keywords
ions
vinyl
sulphoxy
chlorate
molar equivalents
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
GB1715/59A
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.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid 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 American Cyanamid Co filed Critical American Cyanamid Co
Publication of GB866445A publication Critical patent/GB866445A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F20/00Homopolymers and 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
    • C08F20/02Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
    • C08F20/42Nitriles
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00Processes of polymerisation
    • C08F2/12Polymerisation in non-solvents
    • C08F2/16Aqueous medium
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F20/00Homopolymers and 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
    • C08F20/02Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
    • C08F20/42Nitriles
    • C08F20/44Acrylonitrile
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00Polymerisation catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

Polymers of substantially uniform average molecular weight are made by polymerizing at least one compound containing a <FORM:0866445/IV (a)/1> group in an aqueous medium at a pH not higher than 4,0 in the presence of a redox catalyst system comprising 0,1% to about 3% by weight of chlorate ions and 0,1% to about 9% by weight of sulphoxy ions and varying the percentage conversion of the polymerizable compound to the polymer by decreasing or decreasing respectively the ratio of molar equivalents of sulphoxy ions to the polymerizable compound together with a decrease or increase respectively in the ratio of molar equivalents of chlorate ions to the polymerizable compound that is greater than the decrease or increase in the ratio or molar equivalents of sulphoxy ions to the polymerizable material. The process may be effected batchwise or continuously. The chlorate ions may be obtained from chloric acid, ammonium, sodium, potassium, or lithium chlorate, or alkaline earth metals or heavy metal chlorates. The sulphoxy ions may be obtained from sulphur dioxide, sulphites, bisulphites, meta-bisulphites, or a water soluble dialkyl sulphite. The Specification contains an extensive list of compounds containing a <FORM:0866445/IV (a)/2> group, e.g. diallyl benzene, styrene, dialkyl styrenes, isopropenyl toluene, acrylonitrile, alkacrylonitriles, substituted acrylamides, vinyl esters, e.g. vinyl acetate, vinyl acrylate, acrylates, methacrylates, diallyl amine, vinyl ethyl ether, vinyl pyridene, and substituted vinyl pyridines. The preferred polymers are copolymers and terpolymers comprising acrylonitrile and a vinyl pyridine which are made into fibres and filaments. Specifications 672,775, 722,451 and 735,225 are referred to.
GB1715/59A 1958-01-27 1959-01-16 Polymerization process Expired GB866445A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US866445XA 1958-01-27 1958-01-27

Publications (1)

Publication Number Publication Date
GB866445A true GB866445A (en) 1961-04-26

Family

ID=22199917

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1715/59A Expired GB866445A (en) 1958-01-27 1959-01-16 Polymerization process

Country Status (2)

Country Link
FR (1) FR1222811A (en)
GB (1) GB866445A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5472995A (en) * 1994-08-09 1995-12-05 Cytec Technology Corp. Asbestos-free gaskets and the like containing blends of organic fibrous and particulate components
EP0696693A1 (en) 1994-08-09 1996-02-14 Cytec Technology Corp. Dry processed friction material, method of making same, and dry blend
US5520866A (en) * 1994-08-09 1996-05-28 Cytec Technology Corp. Process for the preparation of friction materials containing blends of organic fibrous and particulate components
US5889082A (en) * 1994-08-09 1999-03-30 Sterling Chemicals International, Inc. Method for manufacturing friction materials containing blends of organic fibrous and particulate components

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5472995A (en) * 1994-08-09 1995-12-05 Cytec Technology Corp. Asbestos-free gaskets and the like containing blends of organic fibrous and particulate components
EP0696693A1 (en) 1994-08-09 1996-02-14 Cytec Technology Corp. Dry processed friction material, method of making same, and dry blend
US5520866A (en) * 1994-08-09 1996-05-28 Cytec Technology Corp. Process for the preparation of friction materials containing blends of organic fibrous and particulate components
US5889082A (en) * 1994-08-09 1999-03-30 Sterling Chemicals International, Inc. Method for manufacturing friction materials containing blends of organic fibrous and particulate components
US5919837A (en) * 1994-08-09 1999-07-06 Sterling Chemicals International, Inc. Friction materials containing blends of organic fibrous and particulate components
US6110991A (en) * 1994-08-09 2000-08-29 Sterling Chemicals, International, Inc. Friction materials containing blends of organic fibrous and particulate components

Also Published As

Publication number Publication date
FR1222811A (en) 1960-06-13

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