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, 2016
Filed:
Mar. 15, 2012
Applicants:
Ramin Amin-sanayei, Malvern, PA (US);
Caiping Lin, West Hartford, CT (US);
Inventors:
Ramin Amin-Sanayei, Malvern, PA (US);
Caiping Lin, West Hartford, CT (US);
Assignee:
Arkema Inc., King of Prussia, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F 214/22 (2006.01); C08L 27/16 (2006.01); C08L 27/12 (2006.01); C08F 14/18 (2006.01); C08F 214/18 (2006.01);
U.S. Cl.
CPC ...
C08F 214/22 (2013.01); C08F 14/18 (2013.01); C08F 214/182 (2013.01); C08L 27/12 (2013.01); C08L 27/16 (2013.01); Y10T 428/2982 (2015.01);
Abstract
The invention relates to a method for making copolymers of 2,3,3,3-tetrafluoropropene and vinylidene fluoride by an emulsion polymerization process having unexpectedly high melting temperatures, even at low crystallinity levels. The invention involves adjusting the microstructure of the copolymers through a controlled polymerization to obtain controlled microstructure copolymers with unique properties, including those with high melting temperature and low crystallinity.