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:
Jan. 04, 1983
Filed:
Jul. 27, 1981
Applicant:
Inventors:
Glenn E Fulmer, Clarksville, MD (US);
Louis L Wood, Rockville, MD (US);
Assignee:
W. R. Grace & Co., New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08L / ; B32B / ;
U.S. Cl.
CPC ...
428240 ; 428242 ; 428283 ; 428339 ; 521123 ; 521137 ; 521905 ; 524423 ; 524425 ; 524439 ; 524916 ; 524871 ; 525455 ; 528 55 ; 528 57 ; 528904 ; 181293 ;
Abstract
A sound deadening material is obtained with a very high loading of sound damping materials such as barium sulfate, calcium carbonate or metal powders. These materials are mixed with water and are bound together by adding a water-miscible isocyanate-terminated prepolymer which reacts with the water to form a cross-linked binder.