GB1384398A - Polymerization process for preparing fluoroelastomer - Google Patents

Polymerization process for preparing fluoroelastomer

Info

Publication number
GB1384398A
GB1384398A GB6070971A GB6070971A GB1384398A GB 1384398 A GB1384398 A GB 1384398A GB 6070971 A GB6070971 A GB 6070971A GB 6070971 A GB6070971 A GB 6070971A GB 1384398 A GB1384398 A GB 1384398A
Authority
GB
United Kingdom
Prior art keywords
hexafluoropropene
tetrafluoroethylene
chain transfer
vinylidene fluoride
peroxide
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
GB6070971A
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.)
Daikin Industries Ltd
Original Assignee
Daikin Industries Ltd
Daikin Kogyo Co Ltd
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 claimed from JP12635370A external-priority patent/JPS4929310B1/ja
Priority claimed from JP9652171A external-priority patent/JPS518432B1/ja
Priority claimed from JP9652271A external-priority patent/JPS4929630B1/ja
Priority claimed from JP9652371A external-priority patent/JPS4929631B1/ja
Application filed by Daikin Industries Ltd, Daikin Kogyo Co Ltd filed Critical Daikin Industries Ltd
Publication of GB1384398A publication Critical patent/GB1384398A/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
    • C08F214/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
    • C08F214/18—Monomers containing fluorine
    • C08F214/28—Hexyfluoropropene
    • 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
    • C08F214/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
    • C08F214/18—Monomers containing fluorine
    • C08F214/22—Vinylidene fluoride

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

1384398 Polymerizing fluoroolefins DAIKIN KOGYO CO Ltd 30 Dec 1971 [30 Dec 1970 30 Nov 1971 (3)] 60709/71 Heading C3P A fluoroelastomer is prepared by polymerizing hexafluoropropene, vinylidene fluoride and optionally tetrafluoroethylene in aqueous suspension with a liquid halogenated hydrocarbon using an initiator soluble in organic solvents at a temperature of 1-45‹ C. and pressure of 1 to 30 kg./cm.<SP>2</SP>G to give a polymer having a composition based on the sum of hexafluoropropene, vinylidene fluoride and tetrafluoroethylene, lying in the rectilinear area defined by the molar ratios of hexafluoropropene: vinylidene fluoride : tetrafluoroethylene of 8 : 92 : 0; 34 : 66 : 0; 42 : 28 : 30; 16 : 54 : 30. Suspension stabilizers, chain transfer agents, &c. may also be added to the polymerization mixture. In examples the monomers were polymerized in water containing, as liquid hydrocarbon 1,1,2 - trichloro - 1,2,2 - trifluoroethane, excess hexafluoropropene, or trichlorofluoromethane which also acted as a chain transfer agent. Initiators used include di-(3,5,6- trichloro - 2,2,3,4,4,5,6,6 - octafluorohexanoyl) peroxide, diisopropyl peroxydicarbonate, acetylcyclohexyl sulphonyl peroxide, diisobutyryl peroxide and di-(t.-butylcyclohexyl) peroxydicarbonate. Methyl cellulose and polyvinyl alcohol were used as suspension stabilizers and in some examples trichlorofluoromethane, isopentane or carbon tetrachloride was added as chain transfer agent. The fluoroelastomers obtained were cured by heating with magnesium oxide, carbon and hexamethylenediaminecarbamate. Reference has been directed by the Comptroller to Specification 1,260,611.
GB6070971A 1970-12-30 1971-12-30 Polymerization process for preparing fluoroelastomer Expired GB1384398A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP12635370A JPS4929310B1 (en) 1970-12-30 1970-12-30
JP9652171A JPS518432B1 (en) 1971-11-30 1971-11-30
JP9652271A JPS4929630B1 (en) 1971-11-30 1971-11-30
JP9652371A JPS4929631B1 (en) 1971-11-30 1971-11-30

Publications (1)

Publication Number Publication Date
GB1384398A true GB1384398A (en) 1975-02-19

Family

ID=27468442

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6070971A Expired GB1384398A (en) 1970-12-30 1971-12-30 Polymerization process for preparing fluoroelastomer

Country Status (3)

Country Link
FR (1) FR2121107A5 (en)
GB (1) GB1384398A (en)
IT (1) IT944593B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6680124B1 (en) 1998-03-06 2004-01-20 Daikin Industries Ltd. Fluorochemical adhesive material and laminate made with the same
US6740375B1 (en) 1999-09-08 2004-05-25 Daikin Industries, Ltd. Fluorochemical adhesive material and laminate comprising the same
CN115340623A (en) * 2022-08-15 2022-11-15 万华化学集团股份有限公司 Method for preparing polyvinylidene fluoride resin
EP4332128A1 (en) * 2022-09-05 2024-03-06 Arkema France Vinylidene fluoride emulsion polymerization using poly(vinyl alcohol) as only stabilizer

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3781265A (en) * 1972-10-17 1973-12-25 Pennwalt Corp Method of preparing consistently high-quality vinylidene fluoride polymer
US4123603A (en) * 1977-05-31 1978-10-31 E. I. Du Pont De Nemours And Company Fluoroelastomer composition
US4335238A (en) * 1980-10-06 1982-06-15 E. I. Du Pont De Nemours And Company Fluoropolymer hexafluoropropene, tetrafluorethene and 1,1-difluoroethene

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6680124B1 (en) 1998-03-06 2004-01-20 Daikin Industries Ltd. Fluorochemical adhesive material and laminate made with the same
US6740375B1 (en) 1999-09-08 2004-05-25 Daikin Industries, Ltd. Fluorochemical adhesive material and laminate comprising the same
CN115340623A (en) * 2022-08-15 2022-11-15 万华化学集团股份有限公司 Method for preparing polyvinylidene fluoride resin
CN115340623B (en) * 2022-08-15 2023-12-19 万华化学集团股份有限公司 Method for preparing polyvinylidene fluoride resin
EP4332128A1 (en) * 2022-09-05 2024-03-06 Arkema France Vinylidene fluoride emulsion polymerization using poly(vinyl alcohol) as only stabilizer
WO2024052273A1 (en) * 2022-09-05 2024-03-14 Arkema France Vinylidene fluoride emulsion polymerization using poly(vinyl alcohol) as only stabilizer

Also Published As

Publication number Publication date
FR2121107A5 (en) 1972-08-18
IT944593B (en) 1973-04-20

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Legal Events

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