GB1165052A - Process for the preparation of Polymers of Styrene and Polybutadiene - Google Patents

Process for the preparation of Polymers of Styrene and Polybutadiene

Info

Publication number
GB1165052A
GB1165052A GB2794467A GB2794467A GB1165052A GB 1165052 A GB1165052 A GB 1165052A GB 2794467 A GB2794467 A GB 2794467A GB 2794467 A GB2794467 A GB 2794467A GB 1165052 A GB1165052 A GB 1165052A
Authority
GB
United Kingdom
Prior art keywords
styrene
polybutadiene
until
copolymer
polymerizing
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
GB2794467A
Inventor
Eichi Moriguchi
Takeshi Goto
Michikazu Hiraoka
Teruhisa Mitsumori
Shonosuke Rokudo
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.)
Denka Co Ltd
Original Assignee
Denki Kagaku Kogyo KK
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 Denki Kagaku Kogyo KK filed Critical Denki Kagaku Kogyo KK
Priority to GB2794467A priority Critical patent/GB1165052A/en
Publication of GB1165052A publication Critical patent/GB1165052A/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
    • 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)
  • Graft Or Block Polymers (AREA)

Abstract

1,165,052. Graft polymer of styrene and polybutadiene. DENKI KAGAKU KOGYO K.K. 16 June, 1967, No. 27944/67. Headings C3G and C3P. A graft polymer of styrene and polybutadiene is made by bulk polymerizing at 80-120‹ C. a mixture of 85-98 parts by wt. of styrene and 15-2 parts of polybutadiene in the absence of any catalyst or in the presence of less than 0.2% by wt. of dicumyl peroxide until the conversion of the styrene reaches 20-40%, dispersing the product in an aqueous medium containing a dispersing agent, adding dicumyl peroxide in an amount such that its total amount is 0À05-0À5%, suspension polymerizing the mixture at 105-125‹ C. until the conversion reaches at least 70% and continuing the polymerization at 125-140‹ C. until it is complete and the polymer, in bead form, may be washed and dried. The dispersing agent may be a partially saponified polyvinyl acetate, or a copolymer of vinyl acetate and maleic anhydride or (dodecyl or hexadecyl) vinyl ether, a polyalkylene oxide, a partially formalized or butyralized polyvinyl alcohol or gelatine. The bulk polymerization may be carried out in the presence of tert. -dodecyl mercaptan. A partially saponified vinyl acetate-dodecyl vinyl ether copolymer is prepared by polymerizing the monomers in methanol with azobisisobutyronitrile and saponifying the copolymer with a methanol solution of sodium methylate.
GB2794467A 1967-06-16 1967-06-16 Process for the preparation of Polymers of Styrene and Polybutadiene Expired GB1165052A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2794467A GB1165052A (en) 1967-06-16 1967-06-16 Process for the preparation of Polymers of Styrene and Polybutadiene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2794467A GB1165052A (en) 1967-06-16 1967-06-16 Process for the preparation of Polymers of Styrene and Polybutadiene

Publications (1)

Publication Number Publication Date
GB1165052A true GB1165052A (en) 1969-09-24

Family

ID=10267787

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2794467A Expired GB1165052A (en) 1967-06-16 1967-06-16 Process for the preparation of Polymers of Styrene and Polybutadiene

Country Status (1)

Country Link
GB (1) GB1165052A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0028517A1 (en) * 1979-11-01 1981-05-13 MITSUI TOATSU CHEMICALS, Inc. A method of manufacturing rubber modified styrene resins and resins produced by such a method
US5244977A (en) * 1989-03-10 1993-09-14 Nippon Steel Chemical Co., Ltd. Process for preparing rubber-modified styrene resins

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0028517A1 (en) * 1979-11-01 1981-05-13 MITSUI TOATSU CHEMICALS, Inc. A method of manufacturing rubber modified styrene resins and resins produced by such a method
US5244977A (en) * 1989-03-10 1993-09-14 Nippon Steel Chemical Co., Ltd. Process for preparing rubber-modified styrene resins

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee