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:
Oct. 16, 1979
Filed:
Sep. 07, 1978
Applicant:
Inventor:
Gordon M Parker, Wilmington, DE (US);
Assignee:
Wilmington Chemical Corporation, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; B05D / ; B05D / ;
U.S. Cl.
CPC ...
427246 ; 260 / ; 260 / ; 260 / ; 427392 ; 427439 ; 428904 ; 427342 ;
Abstract
A method of preparing a composite sheet material having properties similar to leather is provided. At least a portion of a porous sheet material is impregnated with an aqueous ionic dispersion of a polyurethane polymer. The polyurethane polymer which is impregnated in the porous sheet is ionically coagulated from the dispersion. Preferably, both the ionic dispersing and coagulating media are removed from the impregnated sheet. The impregnant is then dried to form a composite sheet material.
Quick Actions:
Parker, Gordon. (1979). Method of preparing composite sheet material (U.S. Patent No. 4171391). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4171391
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile