GB1405170A - Reclamation of fluoropolymers - Google Patents

Reclamation of fluoropolymers

Info

Publication number
GB1405170A
GB1405170A GB5630972A GB5630972A GB1405170A GB 1405170 A GB1405170 A GB 1405170A GB 5630972 A GB5630972 A GB 5630972A GB 5630972 A GB5630972 A GB 5630972A GB 1405170 A GB1405170 A GB 1405170A
Authority
GB
United Kingdom
Prior art keywords
cured
vinylidene fluoride
amine
polymers
reclamation
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
GB5630972A
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.)
Dunlop Ltd
Original Assignee
Dunlop 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
Application filed by Dunlop Ltd filed Critical Dunlop Ltd
Priority to GB5630972A priority Critical patent/GB1405170A/en
Priority to FR7343145A priority patent/FR2209794B1/fr
Priority to DE2360927A priority patent/DE2360927A1/en
Priority to JP13672273A priority patent/JPS4999171A/ja
Priority to IT8366873A priority patent/IT1056221B/en
Publication of GB1405170A publication Critical patent/GB1405170A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
    • C08J11/16—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with inorganic material
    • 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
    • C08F8/00—Chemical modification by after-treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00—Characterised by the use of homopolymers or 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; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or 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; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/12—Characterised by the use of homopolymers or 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; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08J2327/16—Homopolymers or copolymers of vinylidene fluoride
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

1405170 Reclaiming amine-cured vinylidene fluoride polymers DUNLOP Ltd 28 Nov 1973 [6 Dec 1972] 56309/72 Heading C3P Amine-cured polymers of vinylidene fluoride are reclaimed by treatment with concentrated nitric acid, preferably by boiling with the acid. In examples are used copolymers of vinylidene fluoride and hexafluoropropene or tetrafluoroethylene and pentafluoropropene, cured with N,N<SP>1</SP>-dicinnamylidene-1,6-hexanedramine. The products can be recured.
GB5630972A 1972-12-06 1972-12-06 Reclamation of fluoropolymers Expired GB1405170A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB5630972A GB1405170A (en) 1972-12-06 1972-12-06 Reclamation of fluoropolymers
FR7343145A FR2209794B1 (en) 1972-12-06 1973-12-04
DE2360927A DE2360927A1 (en) 1972-12-06 1973-12-06 METHOD FOR REGENERATION OF FLUOROPOLYMERS
JP13672273A JPS4999171A (en) 1972-12-06 1973-12-06
IT8366873A IT1056221B (en) 1972-12-06 1973-12-06 METHOD FOR REGENERATING A LIMEROUS FLUOROPE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5630972A GB1405170A (en) 1972-12-06 1972-12-06 Reclamation of fluoropolymers

Publications (1)

Publication Number Publication Date
GB1405170A true GB1405170A (en) 1975-09-03

Family

ID=10476307

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5630972A Expired GB1405170A (en) 1972-12-06 1972-12-06 Reclamation of fluoropolymers

Country Status (5)

Country Link
JP (1) JPS4999171A (en)
DE (1) DE2360927A1 (en)
FR (1) FR2209794B1 (en)
GB (1) GB1405170A (en)
IT (1) IT1056221B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4125578A (en) 1974-03-29 1978-11-14 Setech International Limited Reclaimed vulcanized rubber
ITMI20120339A1 (en) * 2012-03-06 2013-09-07 Dott Viola & Partners Chemical Res Earch S R L PROCEDURE FOR THE DEVULCANIZATION OF VULCANIZED FLUOROELASTOMERS, FLUOROELASTOMERS SO OBTAINED AND THEIR USE

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3505862B2 (en) * 1995-07-19 2004-03-15 ユニマテック株式会社 Method for regenerating cross-linked vulcanized fluoro rubber

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4125578A (en) 1974-03-29 1978-11-14 Setech International Limited Reclaimed vulcanized rubber
ITMI20120339A1 (en) * 2012-03-06 2013-09-07 Dott Viola & Partners Chemical Res Earch S R L PROCEDURE FOR THE DEVULCANIZATION OF VULCANIZED FLUOROELASTOMERS, FLUOROELASTOMERS SO OBTAINED AND THEIR USE
WO2013132523A1 (en) * 2012-03-06 2013-09-12 Dott. Viola & Partners Chemical Research S.R.L. Process for devulcanizing vulcanized fluoroelastomers, fluoroelastomers thereof and their use
US9000058B2 (en) 2012-03-06 2015-04-07 Dott. Viola & Partners Chemical Research S.R.L. Process for devulcanizing vulcanized fluoroelastomers, fluoroelastomers thereof and their use
DE112013001328B4 (en) * 2012-03-06 2016-08-04 Dott. Viola & Partners Chemical Research S.R.L. Process for devulcanizing vulcanized fluoroelastomers, fluoroelastomers thereof and their use, and plates, o-rings, gaskets and articles made therefrom

Also Published As

Publication number Publication date
JPS4999171A (en) 1974-09-19
IT1056221B (en) 1982-01-30
FR2209794A1 (en) 1974-07-05
DE2360927A1 (en) 1974-06-20
FR2209794B1 (en) 1976-06-25

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Legal Events

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