GB801399A - Method of enlarging solid cross-linked polymer bodies - Google Patents
Method of enlarging solid cross-linked polymer bodiesInfo
- Publication number
- GB801399A GB801399A GB29413/55A GB2941355A GB801399A GB 801399 A GB801399 A GB 801399A GB 29413/55 A GB29413/55 A GB 29413/55A GB 2941355 A GB2941355 A GB 2941355A GB 801399 A GB801399 A GB 801399A
- Authority
- GB
- United Kingdom
- Prior art keywords
- styrene
- divinylbenzene
- benzene
- polymer
- ethylvinylbenzene
- 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
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
- C08F257/00—Macromolecular compounds obtained by polymerising monomers on to polymers of aromatic monomers as defined in group C08F12/00
- C08F257/02—Macromolecular compounds obtained by polymerising monomers on to polymers of aromatic monomers as defined in group C08F12/00 on to polymers of styrene or alkyl-substituted styrenes
Abstract
Slightly cross-linked polymer bodies are enlarged by swelling to between 5 and 30 times their initial volume with at least one monomeric vinylidene compound and polymerizing the monomer present in the swollen polymer while the latter is immersed in a liquid medium which is not a solvent for the monomer or polymer. Optionally the swelling process may be conducted in the presence of the non-solvent. The polymer may be polystyrene cross-linked by electron bombardment; copolymers of styrene, ar-ethylvinylbenzene and divinylbenzene; ar-chlorostyrene, ethylvinylbenzene and divinyl-benzene; ar-vinyltoluene and divinylbenzene; vinyltoluene, ethylvinyl benzene and divinyl-benzene; styrene and butadiene-1,3; styrene and isoprene; vinyltoluene and butadiene; a -methyl styrene, styrene, ethylvinylbenzene and divinylbenzene; or methyl methacrylate, ethyl-vinylbenzene and divinylbenzene. Specified monomers are vinyl acetate, styrene, chloro-styrene, vinyl toluene, methyl methacrylate, acrylonitrile, optionally with minor proportions of a polyolefinic compound, e.g. divinyl benzene or butadiene. Catalysts, e.g. benzoyl and lauroyl peroxides, and a ,a 1-azo-bisisobutyronitrile, dyes, lubricants and plasticisers may be added to the monomers. The swollen polymer bodies may be suspended in water in the presence of starch, methyl cellulose, bentonite, copper sulphate and a water-soluble urea-ethylene oxide-formaldehyde reaction product, and the suspension stirred to prevent bonding. The process may be repeated to further enlarge the bodies.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US801399XA | 1954-11-12 | 1954-11-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB801399A true GB801399A (en) | 1958-09-10 |
Family
ID=22155506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB29413/55A Expired GB801399A (en) | 1954-11-12 | 1955-10-14 | Method of enlarging solid cross-linked polymer bodies |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB801399A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2421185A1 (en) * | 1978-03-27 | 1979-10-26 | Labofina Sa | PROCESS FOR PREPARING STYRENIC RESINS REINFORCED BY RUBBER AND RESINS OBTAINED BY THIS PROCESS |
US4243768A (en) | 1977-03-31 | 1981-01-06 | Minnesota Mining And Manufacturing Company | Sag-resistant compositions |
US4361676A (en) | 1977-03-31 | 1982-11-30 | Minnesota Mining And Manufacturing Company | Sag-resistant compositions |
EP0448391A2 (en) * | 1990-03-22 | 1991-09-25 | Rohm And Haas Company | Process for making controlled uniform-sized polymer particles |
-
1955
- 1955-10-14 GB GB29413/55A patent/GB801399A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4243768A (en) | 1977-03-31 | 1981-01-06 | Minnesota Mining And Manufacturing Company | Sag-resistant compositions |
US4361676A (en) | 1977-03-31 | 1982-11-30 | Minnesota Mining And Manufacturing Company | Sag-resistant compositions |
FR2421185A1 (en) * | 1978-03-27 | 1979-10-26 | Labofina Sa | PROCESS FOR PREPARING STYRENIC RESINS REINFORCED BY RUBBER AND RESINS OBTAINED BY THIS PROCESS |
EP0448391A2 (en) * | 1990-03-22 | 1991-09-25 | Rohm And Haas Company | Process for making controlled uniform-sized polymer particles |
EP0448391A3 (en) * | 1990-03-22 | 1992-03-18 | Rohm And Haas Company | Process for making controlled uniform-sized polymer particles |
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