GB2001661A - Dialkyl substituted aldehydes as chain transfer agents fir vinyl chloride polymerization - Google Patents

Dialkyl substituted aldehydes as chain transfer agents fir vinyl chloride polymerization

Info

Publication number
GB2001661A
GB2001661A GB7831183A GB7831183A GB2001661A GB 2001661 A GB2001661 A GB 2001661A GB 7831183 A GB7831183 A GB 7831183A GB 7831183 A GB7831183 A GB 7831183A GB 2001661 A GB2001661 A GB 2001661A
Authority
GB
United Kingdom
Prior art keywords
vinyl chloride
chain transfer
fir
dialkyl substituted
transfer agents
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
GB7831183A
Other versions
GB2001661B (en
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.)
Air Products and Chemicals Inc
Original Assignee
Air Products and Chemicals Inc
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 Air Products and Chemicals Inc filed Critical Air Products and Chemicals Inc
Publication of GB2001661A publication Critical patent/GB2001661A/en
Application granted granted Critical
Publication of GB2001661B publication Critical patent/GB2001661B/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
    • 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
    • C08F14/02—Monomers containing chlorine
    • C08F14/04—Monomers containing two carbon atoms
    • C08F14/06—Vinyl chloride

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)
  • Polymerisation Methods In General (AREA)

Abstract

Vinyl chloride homopolymers and copolymers of controlled molecular weight and desirable polymer melt rheology are obtained using as a chain transfer agent in the polymerization process an aldehyde which is at least dialkyl substituted. The aldehyde is represented by the general formula: <IMAGE> wherein: R1 is hydrogen, lower alkyl having from 1 to 6 carbon atoms, or cyclohexyl; R2 is a lower alkyl group having from 1 to 6 carbon atoms or cyclohexyl; and R3 is ethyl, propyl, butyl, or cyclohexyl.l
GB7831183A 1977-07-27 1978-07-26 Dialkyl substituted aldehydes as a chain transfer agent for vinyl chloride polymerization Expired GB2001661B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81955877A 1977-07-27 1977-07-27

Publications (2)

Publication Number Publication Date
GB2001661A true GB2001661A (en) 1979-02-07
GB2001661B GB2001661B (en) 1982-02-10

Family

ID=25228469

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7831183A Expired GB2001661B (en) 1977-07-27 1978-07-26 Dialkyl substituted aldehydes as a chain transfer agent for vinyl chloride polymerization

Country Status (7)

Country Link
JP (1) JPS5424992A (en)
BE (1) BE869252A (en)
CA (1) CA1134099A (en)
DE (1) DE2832551A1 (en)
FR (1) FR2398763A1 (en)
GB (1) GB2001661B (en)
NL (1) NL7807851A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2404016A1 (en) * 1977-09-22 1979-04-20 Tenneco Chem PROCESS FOR THE PRODUCTION OF VINYL HALOGENIDE POLYMERS

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2729627A (en) * 1952-11-26 1956-01-03 Us Rubber Co Polyvinyl chloride for use in plastisols
US4060677A (en) * 1975-02-25 1977-11-29 Hooker Chemicals & Plastics Corporation Process for molecular weight lowering of vinyl halide polymers employing saturated carbon to carbon bonded aldehydes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2404016A1 (en) * 1977-09-22 1979-04-20 Tenneco Chem PROCESS FOR THE PRODUCTION OF VINYL HALOGENIDE POLYMERS

Also Published As

Publication number Publication date
JPS5424992A (en) 1979-02-24
FR2398763B1 (en) 1984-08-17
BE869252A (en) 1978-11-16
NL7807851A (en) 1979-01-30
GB2001661B (en) 1982-02-10
DE2832551A1 (en) 1979-02-08
FR2398763A1 (en) 1979-02-23
CA1134099A (en) 1982-10-19

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Legal Events

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