GB788651A - Improvements in and relating to modified rubber compositions - Google Patents

Improvements in and relating to modified rubber compositions

Info

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
Application number
GB1030053A
Inventor
Frederick James William Popham
George Frederic Bloomfield
Frank Mark Merrett
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.)
BRITISH RUBBER PROD RES
Original Assignee
BRITISH RUBBER PROD RES
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 BRITISH RUBBER PROD RES filed Critical BRITISH RUBBER PROD RES
Priority to GB1030053A priority Critical patent/GB788651A/en
Publication of GB788651A publication Critical patent/GB788651A/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
    • 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.
GB1030053A 1953-04-15 1953-04-15 Improvements in and relating to modified rubber compositions Expired GB788651A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
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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