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:
Sep. 20, 1988
Filed:
Jun. 20, 1985
Applicant:
Inventors:
Clifford N Meltz, Gales Ferry, CT (US);
Gordon D Gruetzmacher, Gales Ferry, CT (US);
Ping W Chang, Waterford, CT (US);
Assignee:
Pfizer Inc., New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; E21B / ;
U.S. Cl.
CPC ...
523130 ; 524503 ; 524512 ; 524843 ; 525 58 ; 525158 ; 528250 ; 528254 ; 166295 ;
Abstract
Aqueous gel-forming compositions are prepared by reacting for 1-10 hours at 50.degree.-95.degree. C., melamine, formaldehyde and a sulfurous acid salt with the optional addition of a gel-modifying agent and/or a gelling agent which is added to the composition immediately prior to use.
Meltz, Clifford. (1988). Aqueous sulfomethylated melamine gel-forming compositions (U.S. Patent No. 4772641). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4772641
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile