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:
Oct. 14, 2014
Filed:
Mar. 13, 2014
Rohm and Haas Company, Philadelphia, PA (US);
Charles J. Rand, Philadelphia, PA (US);
Sudhir M. Mulik, North Wales, PA (US);
Thomas Oswald, Lake Jackson, TX (US);
C. D. Rodowski, Downingtown, PA (US);
Barry Weinstein, Dresher, PA (US);
Rohm and Haas Company, Philadelphia, PA (US);
Dow Global Technologies, LLC, Midland, MI (US);
Abstract
The present invention provides compositions of phosphorus acid group and methacrylic anhydride group containing telomeric copolymers of methacrylic acid having an as yet never achieved amount of more than 70 wt. %, or, preferably, 72 wt. % or more, and up to 99 wt. %, of methacrylic anhydride groups based on the total weight of polymerized methacrylic acid and/or salt units. The compositions enjoy higher thermal stability than was previously achieved and enable easer processing that does not require the removal of liquids or solvents.