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:
Jun. 16, 1998
Filed:
May. 31, 1996
Charles Francis Palmer, Jr, Newark, DE (US);
E. I. duPont de Nemours and Company, Wilmington, DE (US);
Abstract
Compositions useful for imparting durable hydrophilic polymer coatings to polyester, polypropylene or polyethylene fibers or fabrics comprising A) an aqueous dispersion of 1) a hydrophilic copolyester having repeating segments of a polyoxyethylene diester and a polyalkylene diester, and 2) a polypropylene oxide polymer capped on one or both ends with an alkyl or ester group, said polymer having more than 4 propylene oxide units and an average molecular weight of at least about 300; B) a mixture of 1) an organic solvent, 2) a hydrophilic copolyester having repeating segments of a polyoxyethylene diester and a polyalkylene diester, and 3) a polypropylene oxide polymer capped on one or both ends with an alkyl or monoester group, said polymer having more than 4 propylene oxide units and an average molecular weight of at least about 300; C) an aqueous dispersion of 1) a hydrophilic copolyester having repeating segments of a polyoxyethylene diester and a polyalkylene diester, and 2) a polypropylene glycol having an average molecular weight greater than 1100; or D) a mixture of 1) an organic solvent, 2) a hydrophilic copolyester having repeating segments of a polyoxyethylene diester and a polyalkylene diester, and 3) a polypropylene glycol having an average molecular weight greater than 1100 are disclosed.