CA2020854A1 - New fluoroelastomers endowed with improved processability and process for preparing them - Google Patents

New fluoroelastomers endowed with improved processability and process for preparing them

Info

Publication number
CA2020854A1
CA2020854A1 CA2020854A CA2020854A CA2020854A1 CA 2020854 A1 CA2020854 A1 CA 2020854A1 CA 2020854 A CA2020854 A CA 2020854A CA 2020854 A CA2020854 A CA 2020854A CA 2020854 A1 CA2020854 A1 CA 2020854A1
Authority
CA
Canada
Prior art keywords
iodine
fluoroelastomers
polymeric chain
bromine
preparing
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.)
Granted
Application number
CA2020854A
Other languages
French (fr)
Other versions
CA2020854C (en
Inventor
Margherita Albano
Giulio Brinati
Vincenzo Arcella
Enzo Giannetti
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.)
Solvay Specialty Polymers Italy SpA
Original Assignee
Ausimont SpA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11250036&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2020854(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ausimont SpA filed Critical Ausimont SpA
Publication of CA2020854A1 publication Critical patent/CA2020854A1/en
Application granted granted Critical
Publication of CA2020854C publication Critical patent/CA2020854C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C08F214/26—Tetrafluoroethene
    • 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

Abstract

1) Fluoroelastomers characterized by the presence of iodine or bromine atoms at the end of the polymeric chain in an amount equal to or lower than 1 iodine or bromine atom per polymeric chain, and by a bromine content in the chain ranging from 0.05 to 2% by weight referred to the total weight of the monomeric units.

Said fluoroelastomers exhibit improved characteristics of processability, particularly as regards the utilization in injection molding processes and the detaching from the molds, as well as of stability to heat.

2) A process for preparing fluoroelastomers containing iodine or bromine atoms at the ends of the polymeric chain, in an amount equal to or lower than 1 iodine or bromine atom per polymeric chain, which process comprises polymerizing mixes of fluorinated monomers (VDF, TFE, HFP, FVE) in bulk in suspension, in aqueous emulsion, or in solution of organic solvents by means of radical starters, in the presence of compounds capable of providing T or Br ions in the polymerization medium and conditions.
CA002020854A 1989-07-10 1990-07-10 New fluoroelastomers endowed with improved processability and process for preparing them Expired - Fee Related CA2020854C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT41004A/89 1989-07-10
IT8941004A IT1235545B (en) 1989-07-10 1989-07-10 FLUOROELASTOMERS EQUIPPED WITH BETTER PROCESSABILITY AND PREPARATION PROCEDURE

Publications (2)

Publication Number Publication Date
CA2020854A1 true CA2020854A1 (en) 1991-01-11
CA2020854C CA2020854C (en) 2000-02-22

Family

ID=11250036

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002020854A Expired - Fee Related CA2020854C (en) 1989-07-10 1990-07-10 New fluoroelastomers endowed with improved processability and process for preparing them

Country Status (13)

Country Link
US (1) US5173553A (en)
EP (1) EP0407937B1 (en)
JP (1) JP3210003B2 (en)
CN (1) CN1048708A (en)
AU (1) AU634251B2 (en)
BR (1) BR9003298A (en)
CA (1) CA2020854C (en)
DE (1) DE69013249T2 (en)
ES (1) ES2062208T3 (en)
IT (1) IT1235545B (en)
RU (1) RU2086565C1 (en)
UA (1) UA26439A (en)
ZA (1) ZA905374B (en)

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CN1048708A (en) 1991-01-23
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EP0407937A1 (en) 1991-01-16
CA2020854C (en) 2000-02-22
DE69013249T2 (en) 1995-02-23
US5173553A (en) 1992-12-22
JP3210003B2 (en) 2001-09-17
RU2086565C1 (en) 1997-08-10
UA26439A (en) 1999-08-30
AU5888190A (en) 1991-01-10
IT8941004A0 (en) 1989-07-10
ZA905374B (en) 1991-04-24
IT1235545B (en) 1992-09-09
JPH0352907A (en) 1991-03-07
DE69013249D1 (en) 1994-11-17

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