GB816579A - Process for the polymerisation in suspension of vinyl monomers, using graft polymers as dispersing agents - Google Patents

Process for the polymerisation in suspension of vinyl monomers, using graft polymers as dispersing agents

Info

Publication number
GB816579A
GB816579A GB31852/55A GB3185255A GB816579A GB 816579 A GB816579 A GB 816579A GB 31852/55 A GB31852/55 A GB 31852/55A GB 3185255 A GB3185255 A GB 3185255A GB 816579 A GB816579 A GB 816579A
Authority
GB
United Kingdom
Prior art keywords
styrene
vinyl
vinyl monomers
polymer
polyvinyl alcohol
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
GB31852/55A
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.)
Montedison SpA
Original Assignee
Montedison SpA
Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA
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 Montedison SpA, Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA filed Critical Montedison SpA
Publication of GB816579A publication Critical patent/GB816579A/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
    • C08F285/00—Macromolecular compounds obtained by polymerising monomers on to preformed graft polymers
    • 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
    • C08F2/00—Processes of polymerisation
    • C08F2/12—Polymerisation in non-solvents
    • C08F2/16—Aqueous medium
    • C08F2/20—Aqueous medium with the aid of macromolecular dispersing agents
    • 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
    • C08F291/00—Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds according to more than one of the groups C08F251/00 - C08F289/00
    • C08F291/02—Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds according to more than one of the groups C08F251/00 - C08F289/00 on to elastomers

Abstract

Vinyl monomers are polymerized in aqueous suspension in the presence of a polymerization catalyst and a dispersing agent consisting of a graft polymer containing hydrophilic groups, e.g. -OH, -COOH, or -CONH2, and obtained by copolymerizing an ethylenically-unsaturated monomer in the presence of a preformed polymer. Specified vinyl monomers are vinyl acetate, vinyl chloride, and styrene. The graft copolymer may be a polymer of styrene, acrylonitrile, vinyl or vinylidene chloride with polyvinyl alcohol, polyacrylamide, polyacrylic acid, or a vinyl acetate polymer. Exemplified graft polymers are vinyl chloride-polyvinyl alcohol, styrene-polyvinyl alcohol, styrene-polyacrylic acid, and styrene-polyacrylamide. The catalyst may be benzoyl peroxide or alphaalpha1-azobisisobutyronitrile.
GB31852/55A 1954-11-18 1955-11-08 Process for the polymerisation in suspension of vinyl monomers, using graft polymers as dispersing agents Expired GB816579A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT351107X 1954-11-18

Publications (1)

Publication Number Publication Date
GB816579A true GB816579A (en) 1959-07-15

Family

ID=11241133

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31852/55A Expired GB816579A (en) 1954-11-18 1955-11-08 Process for the polymerisation in suspension of vinyl monomers, using graft polymers as dispersing agents

Country Status (6)

Country Link
BE (1) BE542874A (en)
CH (1) CH351107A (en)
DE (1) DE1006159B (en)
FR (1) FR1139686A (en)
GB (1) GB816579A (en)
NL (2) NL93657C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2120261A (en) * 1982-05-20 1983-11-30 Ici Plc Polymerisation process
US10640580B2 (en) 2015-12-22 2020-05-05 Ddp Specialty Electronic Materials Us 8, Llc Method of suspension polymerization of droplets distributed in an aqueous medium
US10654951B2 (en) 2015-12-22 2020-05-19 Ddp Specialty Electronic Materials Us 8, Llc Droplets distributed in an aqueous medium
US10662271B2 (en) 2015-12-22 2020-05-26 Ddp Specialty Electronic Materials Us 8, Llc Droplets distributed in an aqueous medium

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL238772A (en) * 1958-05-02
NL300246A (en) * 1958-09-04
DE3902536A1 (en) * 1989-01-28 1990-08-16 Akzo Gmbh STERICALLY STABILIZED AQUEOUS POLYMER DISPERSIONS

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2120261A (en) * 1982-05-20 1983-11-30 Ici Plc Polymerisation process
US10640580B2 (en) 2015-12-22 2020-05-05 Ddp Specialty Electronic Materials Us 8, Llc Method of suspension polymerization of droplets distributed in an aqueous medium
US10654951B2 (en) 2015-12-22 2020-05-19 Ddp Specialty Electronic Materials Us 8, Llc Droplets distributed in an aqueous medium
US10662271B2 (en) 2015-12-22 2020-05-26 Ddp Specialty Electronic Materials Us 8, Llc Droplets distributed in an aqueous medium

Also Published As

Publication number Publication date
BE542874A (en)
DE1006159B (en) 1957-04-11
CH351107A (en) 1960-12-31
NL202164A (en)
FR1139686A (en) 1957-07-03
NL93657C (en)

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