C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/635.7
C07C 31/20 (2006.01) C07C 29/32 (2006.01)
Patent
CA 1182133
ABSTRACT An aqueous latex consisting essentially of an acid modified vinyl ester interpolymer and 0.8 parts by weight or less of a protective colloid per 100 parts by weight of interpolymer. The vinyl ester interpolymer comprises about 3 to about 7 weight percent of carboxylic acid groups supplied by an interpolymerized C4 - C10 vinylene monobasic carboxylic acid monomer. The aqueous latex is useful as an aqueous dielectric coating binder in the manufacture of electrographic recording materials which comprise a conductive paper support coated with an electrically insulating layer comprising an intimate blend of such latex and up to 500 parts of an inert finely di- vided pigment per 100 parts by weight of latex interpoly- mer. PROCESS FOR THE PRODUCTION OF ETHYLENE GLYCOL ABSTRACT A process for preparing ethylene glycol by the oxidative coupling of methanol in the vapor state. In the process, hydroxymethyl radicals are formed in a first reaction zone from methanol and oxygen. A second reaction zone is maintained substantially oxygen free and at a temperature of about 450°C to 800°C to effect the oxidative coupling. S P E C I F I C A T I O N
405457
Hopley William G.
Union Carbide Corporation
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