GB715099A - Improvements in the manufacture of polymer beads - Google Patents

Improvements in the manufacture of polymer beads

Info

Publication number
GB715099A
GB715099A GB9643/52A GB964352A GB715099A GB 715099 A GB715099 A GB 715099A GB 9643/52 A GB9643/52 A GB 9643/52A GB 964352 A GB964352 A GB 964352A GB 715099 A GB715099 A GB 715099A
Authority
GB
United Kingdom
Prior art keywords
polymerization
dispersing agent
methyl
ethyl
mixtures
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
GB9643/52A
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.)
Kodak Ltd
Original Assignee
Kodak 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
Application filed by Kodak Ltd filed Critical Kodak Ltd
Publication of GB715099A publication Critical patent/GB715099A/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
    • C08F2/22—Emulsion polymerisation

Abstract

Discrete, spherical beads are produced by vigorously agitating a monomer in a non-solvent liquid, particularly water, in the presence of a dispersing agent and a catalyst, stopping the agitation before any appreciable polymerization has taken place and permitting the polymerization to be completed while the mixture remains in a quiescent state. Monomers specified are styrene and/or methyl methacrylate, vinyl pyridine and mixtures of methyl methacrylate with divinyl benzene or diethylene glycol diallyl dicarbonate. The dispersing agent may be the sodium salts of N-oleyl-N-methyl taurine, 2-ethyl-2-methylundecanol-4-sulphate, N-lauroyl-N-N-methyl taurine and lauryl sulphate; the dioctyl ester of sodium sulphosuccinic acid, N-octadecyl tetrasodium (1 : 2-dicarboxyl ethyl sulphosuccinamate), diglycerol monolaurate, lauryl ether of polyethylene glycol, cetyl trimethyl ammonium chloride, mixtures of the above or starch. Catalysts specified are benzoyl, tetrahydronaphthalene, methyl ethyl ketone and hydrogen peroxides, cumene and t-butyl hydroperoxides and N-(a -azo-bis-isobutyronitrile). The polymerization may be carried out in an inert atmosphere and the temperature may be between 30 DEG and 75 DEG C. Beads of size 1 to 200 microns are obtained, the actual size being mainly controlled by the amount and nature of the dispersing agent used.
GB9643/52A 1951-05-01 1952-04-17 Improvements in the manufacture of polymer beads Expired GB715099A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US715099XA 1951-05-01 1951-05-01

Publications (1)

Publication Number Publication Date
GB715099A true GB715099A (en) 1954-09-08

Family

ID=22101779

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9643/52A Expired GB715099A (en) 1951-05-01 1952-04-17 Improvements in the manufacture of polymer beads

Country Status (1)

Country Link
GB (1) GB715099A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2814833A (en) * 1955-02-19 1957-12-03 American Enka Corp Method for preparing granular polyamides
DE1110869B (en) * 1959-04-25 1961-07-13 Henkel & Cie Gmbh Process for the production of solid, water-soluble polymers or copolymers
US3468986A (en) * 1966-11-15 1969-09-23 David J Watanabe Method for producing a solid particulate material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2814833A (en) * 1955-02-19 1957-12-03 American Enka Corp Method for preparing granular polyamides
DE1110869B (en) * 1959-04-25 1961-07-13 Henkel & Cie Gmbh Process for the production of solid, water-soluble polymers or copolymers
US3468986A (en) * 1966-11-15 1969-09-23 David J Watanabe Method for producing a solid particulate material

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