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. 23, 1991
Filed:
May. 16, 1989
Applicant:
Inventors:
Satish K Wason, Bel Air, MD (US);
Gerry Mooney, Ajax, CA;
Claude R Andrews, Havre de Grace, MD (US);
Michael E Tarquini, Havre de Grace, MD (US);
John A Kosin, Bel Air, MD (US);
Rod A Garcia, Orange, TX (US);
Assignee:
J. M. Huber Corporation, Rumson, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
C08J / ; C08J / ;
U.S. Cl.
CPC ...
252350 ; 25218312 ; 521 56 ; 521 57 ; 521 59 ; 521 60 ; 521 76 ; 521 92 ; 521 93 ; 521 97 ;
Abstract
A stabilized powdered endothermic blowing agent which is a mixture of a polycarboxylic acid and an inorganic carbonate, and polycarboxylic acid and inorganic carbonate each having been surface treated with a component which prevents water from being absorbed thereby. The blowing agent is incorporated into a polymeric concentrate used for producing foamed products.