The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 27, 1994
Filed:
Dec. 14, 1993
Michael N O'Connor, Norwalk, CT (US);
Lesley J Barker, Shelton, CT (US);
Roderick G Ryles, Milford, CT (US);
Cytec Technology Corp., Wilmington, DE (US);
Abstract
Stable, water-in-oil emulsions are prepared wherein the aqueous phase thereof contains a water-soluble polymer and the oil phase thereof contains a partially esterified lower N,N-dialkanol fatty amine emulsifier by the emulsion polymerization of water-soluble monomers at a ratio of aqueous phase to oil phase of about 2 to 1 to about 3.5 to 1 and a monomer content of at least about 20%, by weight, wherein the polymerization is conducted in the presence of a second emulsifier comprising a non-ionic, reaction product of ethylene oxide and a long chain compound containing a reactive hydroxyl and/or carboxyl group and having an HLB of above 5 but less than 14, the total weight of the emulsifiers comprising about 1-5% of the emulsion wherein the second emulsifier constitutes from about 10 to about 150% of the weight of the fatty amide and contains less than 0.1 weight percent of sorbitan, sorbitol mixtures thereof and derivatives thereof.