GB788651A - Improvements in and relating to modified rubber compositions - Google Patents
Improvements in and relating to modified rubber compositionsInfo
- Publication number
- GB788651A GB788651A GB1030053A GB1030053A GB788651A GB 788651 A GB788651 A GB 788651A GB 1030053 A GB1030053 A GB 1030053A GB 1030053 A GB1030053 A GB 1030053A GB 788651 A GB788651 A GB 788651A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rubber
- polymerization
- specified
- monomers
- styrene
- 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
- C08F253/00—Macromolecular compounds obtained by polymerising monomers on to natural rubbers or derivatives thereof
-
- 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
- C08F279/00—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00
- C08F279/02—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00 on to polymers of conjugated dienes
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polymerisation Methods In General (AREA)
- Graft Or Block Polymers (AREA)
Abstract
Modified rubbers are prepared by the polymerization of one or more monomers, whose polymerization is not retarded by rubber, in the presence of rubber and an organic peroxide or hydroperoxide of the types R-O-O-R1 or R-O-OH where R and R1 are alkyl, aryl or aralkyl groups. Specified rubbers are natural rubber, and butadiene styrene copolymer, while specified monomers are methyl methacrylate, ethyl acrylate, styrene, acrylonitrile and vinylidene chloride. Specified catalysts are phenyl-, cyclohexyl-, cumyl- and tertiarybutyl-hydroperoxides with activators such as triethylenetetramine or tetraethylene pentamine forming a Redox system. Benzoyl peroxide is also specified. It is preferred that the rubber is used as a latex. The polymerization may proceed to completion or be shortstopped, e.g. by chlordinitrobenzene. A second monomer containing two polymerizable groups such as divinyl benzene or ethylene dimethacrylate may also be present. The products may be mixed with the usual vulcanizing agents and cured.ALSO:Modified rubbers are prepared by the polymerization of one or more monomers, whose polymerization is not retarded by rubber, in the presence of rubber and an organic peroxide or hydroperoxide of the types R-O-O-R1 or R-O-O-H where R and R1 are alkyl, aryl or aralkyl groups. Specified catalysts are phenyl-, cyclohexyl-, cumyl-, and tertiary-butyl-hydroperoxides with activators to form a Redox system and benzoyl peroxide. Specified monomers are ethyl acrylate, methyl methacrylate, acrylonitrile, styrene and vinylidene chloride, while a second monomer such as divinyl benzene or ethylene dimethacrylate may also be present. The polymerization may proceed to completion or be short-stopped and the products may be cured.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1030053A GB788651A (en) | 1953-04-15 | 1953-04-15 | Improvements in and relating to modified rubber compositions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1030053A GB788651A (en) | 1953-04-15 | 1953-04-15 | Improvements in and relating to modified rubber compositions |
Publications (1)
Publication Number | Publication Date |
---|---|
GB788651A true GB788651A (en) | 1958-01-08 |
Family
ID=9965320
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1030053A Expired GB788651A (en) | 1953-04-15 | 1953-04-15 | Improvements in and relating to modified rubber compositions |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB788651A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3042634A (en) * | 1958-06-20 | 1962-07-03 | Us Rubber Co | Polymerization of monoolefins in the presence of comminuted vulcanized rubber |
US4085058A (en) * | 1973-04-04 | 1978-04-18 | Iwatsu Electric Co., Ltd. | Electrophotographic liquid developer containing a graft copolymer of a cyclized rubber |
EP0275011A2 (en) * | 1987-01-16 | 1988-07-20 | Bayer Ag | Water-soluble graft polymers drying in the air |
EP2223945A3 (en) * | 2003-06-02 | 2010-09-15 | Bridgestone Corporation | Rubber composition and pneumatic tire |
-
1953
- 1953-04-15 GB GB1030053A patent/GB788651A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3042634A (en) * | 1958-06-20 | 1962-07-03 | Us Rubber Co | Polymerization of monoolefins in the presence of comminuted vulcanized rubber |
US4085058A (en) * | 1973-04-04 | 1978-04-18 | Iwatsu Electric Co., Ltd. | Electrophotographic liquid developer containing a graft copolymer of a cyclized rubber |
EP0275011A2 (en) * | 1987-01-16 | 1988-07-20 | Bayer Ag | Water-soluble graft polymers drying in the air |
EP0275011A3 (en) * | 1987-01-16 | 1990-06-13 | Bayer Ag | Water-soluble graft polymers drying in the air |
EP2223945A3 (en) * | 2003-06-02 | 2010-09-15 | Bridgestone Corporation | Rubber composition and pneumatic tire |
US9132697B2 (en) | 2003-06-02 | 2015-09-15 | Bridgestone Corporation | Modified natural rubber or modified natural rubber latex, and rubber composition and pneumatic tire |
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