GB905879A - Polyvinyl fluoride and the continuous preparation thereof - Google Patents

Polyvinyl fluoride and the continuous preparation thereof

Info

Publication number
GB905879A
GB905879A GB40328/60A GB4032860A GB905879A GB 905879 A GB905879 A GB 905879A GB 40328/60 A GB40328/60 A GB 40328/60A GB 4032860 A GB4032860 A GB 4032860A GB 905879 A GB905879 A GB 905879A
Authority
GB
United Kingdom
Prior art keywords
polyvinyl fluoride
water
slurry
fluoride
reactor
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
GB40328/60A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB905879A publication Critical patent/GB905879A/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
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • 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
    • C08F14/00—Homopolymers and 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
    • C08F14/18—Monomers containing fluorine
    • C08F14/20—Vinyl fluoride
    • 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
    • C08J2327/14—Homopolymers or copolymers of vinyl fluoride

Landscapes

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

Abstract

A continuous process for the production of polyvinyl fluoride comprises continuously introducing into a reaction zone maintained at above 2,000 p.s.i.g. vinyl fluoride, water and, as initiator, a ,a 1-azo-bis(isobutyramidine hydrochloride) (also known as 2,21-diguanyl-2,21-azopropane dihydrochloride), the weight ratio of vinyl fluoride: water being between 1:3 and 1:20, maintaining the contents of the reactor in a uniformly dispersed state, and continuously removing a slurry of polyvinyl fluoride in water from the reaction zone, the rates of reactant introduction and slurry removal being such that the content of polyvinyl fluoride in the reactor is kept between 2 and <PICT:0905879/IV(a)/1> 15% of the total weight of water and polyvinyl fluoride and selecting the reaction temperature and initiator concentration substantially in accordance with the accompanying graph from within the area bounded by the lines A and B and the appropriate pressure line, which may be obtained by interpolation or extrapolation where necessary. The polymer may be separated from the slurry by filtration or centrifuging, washing and drying. The products are suitable for forming films and have acceptable values in five physical tests devised to test such suitability which are described in detail in the Specification. Any polyvinyl fluoride satisfying these tests is claimed per se. Specifications 619,394, 619,395, 686,234 and 810,065 are referred to.
GB40328/60A 1959-12-01 1960-11-23 Polyvinyl fluoride and the continuous preparation thereof Expired GB905879A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US85657359A 1959-12-01 1959-12-01

Publications (1)

Publication Number Publication Date
GB905879A true GB905879A (en) 1962-09-12

Family

ID=25323981

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40328/60A Expired GB905879A (en) 1959-12-01 1960-11-23 Polyvinyl fluoride and the continuous preparation thereof

Country Status (5)

Country Link
BE (1) BE597608A (en)
DE (1) DE1745748A1 (en)
FR (1) FR1274325A (en)
GB (1) GB905879A (en)
NL (1) NL258535A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6403740B1 (en) * 1997-04-15 2002-06-11 E. I. Du Pont De Nemours And Company Vinyl fluoride interpolymers
US6743869B2 (en) 1997-07-15 2004-06-01 Phillips Petroleum Company High polymer solids slurry polymerization employing 1-olefin comonomer
US6785518B2 (en) 2001-02-16 2004-08-31 Analog Devices, Inc. Transmitter and receiver circuit for radio frequency signals
JP2014501803A (en) * 2010-11-09 2014-01-23 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー Vinyl fluoride polymerization and aqueous dispersion of vinyl fluoride polymer
US10029230B1 (en) 2017-01-24 2018-07-24 Chevron Phillips Chemical Company Lp Flow in a slurry loop reactor

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6403740B1 (en) * 1997-04-15 2002-06-11 E. I. Du Pont De Nemours And Company Vinyl fluoride interpolymers
US7378475B2 (en) 1997-04-15 2008-05-27 E. I. Du Pont De Nemours And Company Process for making vinyl fluoride interpolymers and dispersions thereof
US7741422B2 (en) 1997-04-15 2010-06-22 E. I. Du Pont De Nemours And Company Process for making vinyl fluoride interpolymers and dispersions
US6743869B2 (en) 1997-07-15 2004-06-01 Phillips Petroleum Company High polymer solids slurry polymerization employing 1-olefin comonomer
US6806324B2 (en) 1997-07-15 2004-10-19 Phillips Petroleum Company High solids slurry polymerization using heat exchange to condense the flashed diluent
US6785518B2 (en) 2001-02-16 2004-08-31 Analog Devices, Inc. Transmitter and receiver circuit for radio frequency signals
JP2014501803A (en) * 2010-11-09 2014-01-23 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー Vinyl fluoride polymerization and aqueous dispersion of vinyl fluoride polymer
US10029230B1 (en) 2017-01-24 2018-07-24 Chevron Phillips Chemical Company Lp Flow in a slurry loop reactor

Also Published As

Publication number Publication date
DE1745748A1 (en) 1971-06-16
NL258535A (en)
BE597608A (en) 1961-05-29
FR1274325A (en) 1961-10-20

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