GB1245321A - Polymerisation process - Google Patents

Polymerisation process

Info

Publication number
GB1245321A
GB1245321A GB282069A GB282069A GB1245321A GB 1245321 A GB1245321 A GB 1245321A GB 282069 A GB282069 A GB 282069A GB 282069 A GB282069 A GB 282069A GB 1245321 A GB1245321 A GB 1245321A
Authority
GB
United Kingdom
Prior art keywords
homopolymers
april
jan
copolymers
examples
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
GB282069A
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.)
Huels AG
Original Assignee
Chemische Werke Huels AG
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 DE19681720430 external-priority patent/DE1720430A1/en
Priority claimed from DE19681770217 external-priority patent/DE1770217A1/en
Application filed by Chemische Werke Huels AG filed Critical Chemische Werke Huels AG
Publication of GB1245321A publication Critical patent/GB1245321A/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
    • C08F2/00—Processes of polymerisation
    • C08F2/04—Polymerisation in solution
    • C08F2/10—Aqueous solvent

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

1,245,321. Polymerizing vinyl chloride. CHEMISCHE WERKE HULS A.G. 17 Jan., 1969 [20 Jan., 1968; 17 April, 1968; 18 April. 1968], No. 2820/69. Heading C3P. Vinyl chloride is polymerized or copolymerized in aqueous emulsion at a pH of 6-11 using as emulsifier 0À6-4% (based on monomers) by weight of an alkali metal salt of an alpha-sulpho fatty acid of 12-24 carbons, and in the case of copolymers 0À02-2% (based on solid content of the resulting dispersion) by weight of an alkaline agent is added after polymerization but before processing; this addition is optional for homopolymers. Lithium carbonate is a preferred alkali. In examples homopolymers and copolymers with vinyl acetate, vinyl isobutyl ether, propylene, ethylene or vinylidene chloride are prepared and the heat stability of the products with various stabilizers tested. In some examples a seeding polymer is first formed.
GB282069A 1968-01-20 1969-01-17 Polymerisation process Expired GB1245321A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19681720430 DE1720430A1 (en) 1968-01-20 1968-01-20 Polymerization process
DE19681770217 DE1770217A1 (en) 1968-04-17 1968-04-17 Polymerization process
DE1770233 1968-04-18

Publications (1)

Publication Number Publication Date
GB1245321A true GB1245321A (en) 1971-09-08

Family

ID=27181110

Family Applications (1)

Application Number Title Priority Date Filing Date
GB282069A Expired GB1245321A (en) 1968-01-20 1969-01-17 Polymerisation process

Country Status (1)

Country Link
GB (1) GB1245321A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3480878A4 (en) * 2016-08-25 2020-01-22 Contemporary Amperex Technology Co., Limited Positive electrode additive and preparation method therefor, positive electrode plate and secondary lithium ion battery

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3480878A4 (en) * 2016-08-25 2020-01-22 Contemporary Amperex Technology Co., Limited Positive electrode additive and preparation method therefor, positive electrode plate and secondary lithium ion battery
US10840501B2 (en) 2016-08-25 2020-11-17 Contemporary Amperex Technology Co., Limited Positive electrode additive and preparation method therefor, positive electrode plate and secondary lithium ion battery

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