GB889103A - Modified polyvinyl acetate powders and compositions - Google Patents

Modified polyvinyl acetate powders and compositions

Info

Publication number
GB889103A
GB889103A GB32567/60A GB3256760A GB889103A GB 889103 A GB889103 A GB 889103A GB 32567/60 A GB32567/60 A GB 32567/60A GB 3256760 A GB3256760 A GB 3256760A GB 889103 A GB889103 A GB 889103A
Authority
GB
United Kingdom
Prior art keywords
acid
powder
emulsion
alkalinity
polymerization
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
GB32567/60A
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.)
Kanegafuchi Spinning Co Ltd
Original Assignee
Kanegafuchi Spinning Co 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 Kanegafuchi Spinning Co Ltd filed Critical Kanegafuchi Spinning Co Ltd
Publication of GB889103A publication Critical patent/GB889103A/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
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/12—Powdering or granulating
    • C08J3/122—Pulverisation by spraying
    • 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
    • C08F218/00—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 an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
    • C08F218/02—Esters of monocarboxylic acids
    • C08F218/04—Vinyl esters
    • C08F218/08—Vinyl acetate
    • 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
    • C08J2331/00—Characterised by the use of 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 an acyloxy radical of a saturated carboxylic acid, or carbonic acid, or of a haloformic acid
    • C08J2331/02—Characterised by the use of omopolymers or copolymers of esters of monocarboxylic acids
    • C08J2331/04—Homopolymers or copolymers of vinyl acetate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Paints Or Removers (AREA)

Abstract

A process is described for making a polyvinyl acetate copolymer powder. Vinyl acetate is emulsion polymerized with monomer(s) containing an acid group such as crotonic acid, maleic anhydride, itaconic acid, acrylic acid and methacrylic acid by the usual methods for polymerizing vinyl acetate. If more than 10% of acid monomer is required in the polymer, the polymerization is preferably carried out in solution. The degree of polymerization is preferably higher than 1,000. Before drying the emulsion is mixed with an ammonium salt of a weak acid such as ammonium carbonate, acetate, oxalate, tartrate or benzoate, and an oxide and/or hydroxide of a polyvalent metal such as calcium or zinc. The mixture is then spray dried in a hot or warm stream of air. The powder can then be mixed with fillers and pigments which do not affect the alkalinity in the emulsion because the dispersability of the powder is critically dependent on the alkalinity. Titanium oxide, mica, kaolin or talc can be used. Plasticizers such as tricresyl and tributyl phosphate can be used. Other paint additives such as carboxymethyl cellulose, methyl cellulose and urea-formaldehyde prepolycondensate powder can be added. Examples are given showing how the process is carried out. Specification 753,173 is referred to.
GB32567/60A 1959-09-23 1960-09-22 Modified polyvinyl acetate powders and compositions Expired GB889103A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP889103X 1959-09-23

Publications (1)

Publication Number Publication Date
GB889103A true GB889103A (en) 1962-02-07

Family

ID=13956083

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32567/60A Expired GB889103A (en) 1959-09-23 1960-09-22 Modified polyvinyl acetate powders and compositions

Country Status (1)

Country Link
GB (1) GB889103A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1232751B (en) * 1963-03-25 1967-01-19 Kao Corp Process for the production of copolymers of vinyl acetate
EP0055559A2 (en) * 1980-12-22 1982-07-07 Monsanto Company Vinyl acetate interpolymer latices and electrographic recording material using same
EP0863163A1 (en) * 1997-03-03 1998-09-09 Rohm And Haas Company Polymer emulsions and polymer powders therefrom

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1232751B (en) * 1963-03-25 1967-01-19 Kao Corp Process for the production of copolymers of vinyl acetate
EP0055559A2 (en) * 1980-12-22 1982-07-07 Monsanto Company Vinyl acetate interpolymer latices and electrographic recording material using same
EP0055559A3 (en) * 1980-12-22 1983-05-25 Monsanto Company Vinyl acetate interpolymer latices and electrographic recording material using same
EP0863163A1 (en) * 1997-03-03 1998-09-09 Rohm And Haas Company Polymer emulsions and polymer powders therefrom

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