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:
Apr. 24, 1990
Filed:
Jan. 30, 1989
Applicant:
Inventor:
Sami Daoud, Flemington, NJ (US);
Assignee:
Tyndale Plains-Hunter Ltd., Princeton, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
524502 ; 524591 ;
Abstract
Solvent-free water-based emulsions of hydrophilic polyurethane polymers, their preparation and solvent-free coatings produced from the emulsions are described. Also described are compositions produced by subjecting a homogeneous blend of a curable polymer precursor such as rubber latex and the polyurethane emulsion to curing conditions. Moisture permeable membranes, water swellable sealants, extruded shapes and active agent media are produced from the composition.