GB862419A - Batchwise copolymerization technique - Google Patents

Batchwise copolymerization technique

Info

Publication number
GB862419A
GB862419A GB21741/57A GB2174157A GB862419A GB 862419 A GB862419 A GB 862419A GB 21741/57 A GB21741/57 A GB 21741/57A GB 2174157 A GB2174157 A GB 2174157A GB 862419 A GB862419 A GB 862419A
Authority
GB
United Kingdom
Prior art keywords
styrene
acid
divinyl benzene
vinyl
magnesium
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
GB21741/57A
Inventor
Richard L Markus
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.)
White Laboratories Inc
Original Assignee
White Laboratories Inc
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 BE559288D priority Critical patent/BE559288A/xx
Priority to US439875A priority patent/US2810716A/en
Application filed by White Laboratories Inc filed Critical White Laboratories Inc
Priority to GB21741/57A priority patent/GB862419A/en
Priority to FR743915A priority patent/FR1289405A/en
Priority to DEW21638A priority patent/DE1125178B/en
Publication of GB862419A publication Critical patent/GB862419A/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
    • C08F4/00—Polymerisation catalysts
    • C08F4/06—Metallic compounds other than hydrides and other than metallo-organic compounds; Boron halide or aluminium halide complexes with organic compounds containing oxygen
    • 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
    • C08F36/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F36/02—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
    • C08F36/20—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds unconjugated

Abstract

A batch process for the preparation of swellable cross-linked copolymers of mono-ethylenically unsaturated compounds with from 0.01 to 2.0% by weight of a polyethylenically unsaturated compound comprises reacting the monomers in the presence of a polymerisation catalyst and in a medium consisting of at least 1/2 molar aqueous solution of a salt of an inorganic acid which is represented by one of the following formul : M++A-; M++A2-; and M2+A-, where M++ is a cation of a metal of Group I of the Periodic Table with the exception of copper and gold, A- is an anion derived from an acid exhibiting a basicity of 2, and A- is an anion derived from a monobasic acid. Monoethylenically unsaturated monomers listed include acrylic and methacrylic, and fumaric and maleic, acids, salts and derivatives thereof, styrene and substituted styrenes, vinyl ketones, esters and heterocyclic derivatives among others, and the poly-unsaturated monomers also listed include butadiene, isoprene and higher dienes, divinyl benzene and diallyl derivatives. Catalysts include benzoyl, acetyl and di-t-butyl peroxides, 2,21-azobisisobutyronitrile, potassium persulphate, cumene hydroperoxide, and tetraphenyl- and tetra-p-methoxyphenyl succinodinitrile, and the salts mentioned are those of barium, beryllium, cadmium, calcium, magnesium, strontium, zinc, sodium and potassium. Conventional suspending agents and protective colloids may be used with a reaction temperature from room to reflux and the product is in bead form. Examples describe the use of magnesium sulphate, magnesium and potassium sulphate, beryllium and calcium chlorides, and secondary sodium phosphate in the formation of copolymers of acrylic acid and divinyl benzene, 3,4-dihydroxy2,5 - dimethyl - 1,5 - hexadiene, 4,6 - dihydroxy-4,6 - dimethyl - 1,8 - nonadiene, 2,4,6,8 - tetramethyl - 4,6 - dihydroxy - 1,8 - nonadiene, 1,1,3,3, tetra-allyl - 1,3 - dihydroxypropane, p-diisopropenylbenzene; methacrylic acid and ethyl acrylate, acrylamide, methylenediethylmalonate, styrene, 2-methyl-5-vinylpyridine, N-vinyl pyrrolidone, N-vinyl phthalimide, N.N-dimethylacrylamide, 2 vinyl pyride with divinyl benzene; mixtures of diethyl fumarate and styrene, acrylamide and acrylic acid, methacrylic acid and styrene, acrylic acid and styrene, methylene diethyl malonate and diethyl fumarate or ethyl acrylate with divinyl benzene. The swellable resin products may be used as pharmaceuticals or intermediates. Specifications 707,647 and 714,750 are referred to.
GB21741/57A 1954-06-28 1957-07-09 Batchwise copolymerization technique Expired GB862419A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE559288D BE559288A (en) 1957-07-09
US439875A US2810716A (en) 1954-06-28 1954-06-28 Batchwise copolymerization technique
GB21741/57A GB862419A (en) 1957-07-09 1957-07-09 Batchwise copolymerization technique
FR743915A FR1289405A (en) 1957-07-09 1957-07-23 Charge copolymerization process
DEW21638A DE1125178B (en) 1957-07-09 1957-08-05 Process for the production of swellable crosslinked resinous copolymers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB21741/57A GB862419A (en) 1957-07-09 1957-07-09 Batchwise copolymerization technique

Publications (1)

Publication Number Publication Date
GB862419A true GB862419A (en) 1961-03-08

Family

ID=10168013

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21741/57A Expired GB862419A (en) 1954-06-28 1957-07-09 Batchwise copolymerization technique

Country Status (3)

Country Link
BE (1) BE559288A (en)
FR (1) FR1289405A (en)
GB (1) GB862419A (en)

Also Published As

Publication number Publication date
BE559288A (en)
FR1289405A (en) 1962-04-06

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