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:
Feb. 21, 2023
Filed:
Aug. 31, 2016
Applicant:
Rohm and Haas Company, Philadephia, PA (US);
Inventors:
Michael T. Petr, Collegeville, PA (US);
Paul R. Van Rheenen, Warminster, PA (US);
Assignee:
Rohm and Haas Company, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 9/00 (2006.01); C08F 220/18 (2006.01); C08L 27/06 (2006.01); C08F 220/14 (2006.01); C08L 33/12 (2006.01);
U.S. Cl.
CPC ...
C08F 220/1804 (2020.02); C08F 220/14 (2013.01); C08J 9/0061 (2013.01); C08L 27/06 (2013.01); C08L 33/12 (2013.01); C08J 2201/03 (2013.01); C08J 2327/06 (2013.01); C08J 2433/10 (2013.01); C08L 2203/14 (2013.01);
Abstract
A processing aid for foam molding comprising a copolymer obtained by the polymerization of 30 to 90% by weight of methyl methacrylate, 10 to 70% by weight total of one or more monomers selected from the group consisting of butyl methacrylate (BMA), pentyl methacrylate (PMA) and hexyl methacrylate (HMA), and 0 to 20% by weight of other copolymerizable monomers, the copolymer having a reduced viscosity measured according to ASTM D2857 at 1 mg/mL in chloroform at 25° C. of greater than 8 dL/g is provided.