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:
Dec. 31, 1991
Filed:
Jun. 26, 1989
Applicant:
Inventors:
Kathleen A Hughes, Blue Bell, PA (US);
Graham Swift, Blue Bell, PA (US);
Assignee:
Rohm and Haas Company, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526233 ; 526271 ;
Abstract
A process to efficiently utilize the chain transfer agent hypophosphorous acid or salts in the preparation of low moelcular weight polycarboxylate polymers comprising employing in process neutralization of the carboxylic acid monomers. A low molecular weight polycarboxylate polymer containing phosphinate and phosphonate functional groups where less than 20% of the phosphorus is present in inorganic non polymeric compounds.
Hughes, Kathleen. (1991). Low molecular weight water soluble phosphinate and phosphonate (U.S. Patent No. 5077361). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5077361
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile