Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1997-12-16
1999-08-17
Lipman, Bernard
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526261, 526273, 526319, 526321, 526336, 526348, C08F 200
Patent
active
059395052
ABSTRACT:
In a process for the polymerization of aqueous ethylene vinyl acetate emulsions wherein the polymerization is carried out in the presence of a stabilizing system comprising polyvinyl alcohol and a surfactant, the improvement which comprises using a stabilizing system consisting essentially of 2 to 8% polyvinyl alcohol and 0.25 to 4% of at least one surface-active compound comprising the addition products of 50 to 70 moles of ethylene oxide adducted to straight-chained or branch-chained alkanols or alkylphenols containing 6 to 22 carbon atoms in the alkyl group and having an HLB value equal to or greater than 18.0, the amounts being based on total vinyl acetate.
REFERENCES:
patent: 3661696 (1972-05-01), Knutson
patent: 3734819 (1973-05-01), Knutson
patent: 3827996 (1974-08-01), Beresniewicz
patent: 4449978 (1984-05-01), Iacoviello
patent: 4921898 (1990-05-01), Lenney et al.
patent: 5070134 (1991-12-01), Oyamada et al.
patent: 5110856 (1992-05-01), Oyamada et al.
patent: 5124394 (1992-06-01), Lenney
patent: 5629370 (1997-05-01), Freidzon
patent: 5633334 (1997-05-01), Walker et al.
Article entitled "Ultra High Solids Copolymer Emulsion For Demanding Applications", by Mary Hausman, David Horwat, William Lenney; Adhesives Age; Oct., 1995; p. 49.
CA Selects: Colloids (Macromolecular Aspects), Issue 16, 1996, p. 11, Reference 125:60004p, Preparation of high-solids acrylate and/or vinyl acetate copolymer dispersion in the presence of a latex and its use in sealants, WO 96 11,234.
CA Selects: Synthetic High Polymers, Issue 13, 1995, p. 22, Reference 122:315373r, Manufacture of high-solids ethylene-vinyl ester copolymer aqueous emulsions without raising viscosity, JP 06,322,031.
Dec Ellen T.
Lipman Bernard
National Starch and Chemical Investment Holding Corporation
Sarofim N.
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