GB726927A - Improvements in or relating to polyvinyl ester emulsions - Google Patents

Improvements in or relating to polyvinyl ester emulsions

Info

Publication number
GB726927A
GB726927A GB1319852A GB1319852A GB726927A GB 726927 A GB726927 A GB 726927A GB 1319852 A GB1319852 A GB 1319852A GB 1319852 A GB1319852 A GB 1319852A GB 726927 A GB726927 A GB 726927A
Authority
GB
United Kingdom
Prior art keywords
per cent
ester
total solids
specified
starch
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
GB1319852A
Inventor
John Edwin Oakley Mayne
Henry Warson
David Crowe Whitmore
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.)
Celanese Emulsions Ltd
Original Assignee
Vinyl Products 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 Vinyl Products Ltd filed Critical Vinyl Products Ltd
Priority to GB1319852A priority Critical patent/GB726927A/en
Publication of GB726927A publication Critical patent/GB726927A/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
    • C08F251/00—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

A polyvinyl ester emulsion is prepared by dispersing a vinyl ester in water containing a soluble starch derivative in solution therein in a proportion such that the starch derivative amounts to from 10 to 90 per cent of the total solids and heating the dispersion with the addition of a polymerization catalyst in an amount of from 1 1/2 to 10 per cent of the total solids but not less than 2 per cent or more than 25 per cent of the monomeric vinyl ester to effect polymerization. Vinyl acetate is the specified ester. Specified soluble starch derivatives are dextrin, acetylated starch, chlorinated starch, tapioca gum and farina gum, while specified catalysts are ammonium and sodium persulphates. The polyvinyl ester may be added in two stages. The pH of the emulsion may be adjusted after polymerization by neutralization in the presence of at least 1/2 per cent (preferably at least 1 per cent) of the total solids, of a dialdehyde, e.g. glyoxal, to a value of not more than 6.5.
GB1319852A 1952-05-23 1952-05-23 Improvements in or relating to polyvinyl ester emulsions Expired GB726927A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1319852A GB726927A (en) 1952-05-23 1952-05-23 Improvements in or relating to polyvinyl ester emulsions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1319852A GB726927A (en) 1952-05-23 1952-05-23 Improvements in or relating to polyvinyl ester emulsions

Publications (1)

Publication Number Publication Date
GB726927A true GB726927A (en) 1955-03-23

Family

ID=10018622

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1319852A Expired GB726927A (en) 1952-05-23 1952-05-23 Improvements in or relating to polyvinyl ester emulsions

Country Status (1)

Country Link
GB (1) GB726927A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2914495A (en) * 1956-04-17 1959-11-24 Borden Co Water paint comprising pigment and aqueous emulsion of polyvinyl acetate and waxy maize starch
US4575525A (en) * 1982-09-24 1986-03-11 National Starch And Chemical Corporation Remoistenable adhesive compositions
US4678824A (en) * 1986-02-13 1987-07-07 National Starch And Chemical Corporation Remoistenable adhesive compositions
US5147907A (en) * 1989-07-11 1992-09-15 Synthomer Chemie Gmbh Process of producing aqueous polymer dispersions

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2914495A (en) * 1956-04-17 1959-11-24 Borden Co Water paint comprising pigment and aqueous emulsion of polyvinyl acetate and waxy maize starch
US4575525A (en) * 1982-09-24 1986-03-11 National Starch And Chemical Corporation Remoistenable adhesive compositions
US4678824A (en) * 1986-02-13 1987-07-07 National Starch And Chemical Corporation Remoistenable adhesive compositions
US5147907A (en) * 1989-07-11 1992-09-15 Synthomer Chemie Gmbh Process of producing aqueous polymer dispersions

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