GB1095410A - - Google Patents

Info

Publication number
GB1095410A
GB1095410A GB1095410DA GB1095410A GB 1095410 A GB1095410 A GB 1095410A GB 1095410D A GB1095410D A GB 1095410DA GB 1095410 A GB1095410 A GB 1095410A
Authority
GB
United Kingdom
Prior art keywords
active agent
polymerization
agents
copolymer
ester
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
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.)
Publication date
Publication of GB1095410A publication Critical patent/GB1095410A/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
    • 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
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/16—Making expandable particles
    • C08J9/20—Making expandable particles by suspension polymerisation in the presence of the blowing agent

Abstract

1,095,410. Suspending agents in polymerization systems. MONSANTO CHEMICALS Ltd. Nov. 28, 1966 [Jan. 11, 1966], No. 1232/66. Headings C3C and C3P. Polymerization of olefinically unsaturated monomers is carried out in an aqueous suspension system that contains as suspending agent a surface-active agent and a copolymer of vinyl pyrrolidone with an ester of an acrylic acid. The exemplified monomer is styrene. The surface-active agents may be anionic, non-ionic or cationic, preferably anionic, e.g. the alkalimetal salts of organic sulphonic acids, and are preferably substantially insoluble in organic solvents. The composition comprising a surface-active agent and a copolymer of vinylpyrrolidine with an ester of an acrylic acid, wherein the surface-active agent is substantially insoluble in organic solvents is claimed per se. Volatile liquid blowing agents, e.g. pentane, may be present during polymerization and result in the production of foamable resin beads (see Example 5).
GB1095410D 1966-01-11 Expired GB1095410A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB123266 1966-01-11

Publications (1)

Publication Number Publication Date
GB1095410A true GB1095410A (en) 1900-01-01

Family

ID=9718415

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1095410D Expired GB1095410A (en) 1966-01-11

Country Status (3)

Country Link
DE (1) DE1745072A1 (en)
FR (1) FR1509303A (en)
GB (1) GB1095410A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2342997A1 (en) * 1976-03-05 1977-09-30 Basf Ag PROCESS FOR PREPARING STYRENE POLYMERS BY SUSPENSION POLYMERIZATION

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2548524A1 (en) * 1975-10-30 1977-05-05 Basf Ag PROCESS FOR PRODUCING EXPANDABLE STYRENE POLYMERIZED
DE3331570A1 (en) * 1983-09-01 1985-03-21 Chemische Werke Hüls AG, 4370 Marl METHOD FOR CONTROLLING THE SIZE OF THE PEARLS IN THE PRODUCTION OF EXPANDABLE STYRENE POLYMERISATES BY SUSPENSION POLYMERISATION

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2342997A1 (en) * 1976-03-05 1977-09-30 Basf Ag PROCESS FOR PREPARING STYRENE POLYMERS BY SUSPENSION POLYMERIZATION

Also Published As

Publication number Publication date
FR1509303A (en) 1968-01-12
DE1745072A1 (en) 1971-08-05

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