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:
May. 01, 1979
Filed:
Feb. 15, 1978
Applicant:
Inventors:
Leonard S Silbert, Philadephia, PA (US);
Samuel Serota, Philadephia, PA (US);
Gerhard Maerker, Oreland, PA (US);
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D06M / ; C08B / ; D06M / ;
U.S. Cl.
CPC ...
8121 ; 536 63 ;
Abstract
Water repellancy is imparted to fibrous cellulosic textile material by applying to it, for a very short period of time, an isopropenyl ester containing a catalytic amount of an acid catalyst and then heat curing the treated material. Excellent water repellancy is obtained at a very low degree of substitution and a high degree of retention of tensile strength.
Silbert, Leonard. (1979). Process for imparting water repellancy to fibrous cellulosic textile (U.S. Patent No. 4152115). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4152115
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile