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:
Nov. 20, 1984
Filed:
Mar. 30, 1983
Applicant:
Inventors:
James R Porter, Freeport, TX (US);
Randall C Jenkines, Freeport, TX (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B05D / ;
U.S. Cl.
CPC ...
428 95 ; 427244 ; 427373 ; 4283193 ; 521112 ;
Abstract
Substrates having a backing of fine celled polyurethane foam are prepared by applying to the back of the substrate a frothed polyurethane forming composition containing small amounts of a silicone surfactant having an average molecular weight below about 30,000 which provides the resultant foam with a cell count value of greater than about 16 per 0.0025 square inches and wherein the unfilled, unfrothed liquid components of said polyurethane forming composition obtains a viscosity of greater than 10,000 centipoise in less than 40 minutes at 25.degree. C.