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:
Apr. 09, 2019
Filed:
Mar. 30, 2016
Applicant:
Prime Polymer Co., Ltd., Tokyo, JP;
Inventors:
Assignee:
PRIME POLYMER CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G 4/18 (2006.01); C08J 5/18 (2006.01); C08K 5/156 (2006.01); C08L 23/12 (2006.01); C08F 110/06 (2006.01); C08K 5/1575 (2006.01); H01G 4/33 (2006.01); C08J 3/20 (2006.01); C08K 5/053 (2006.01); B29C 47/00 (2006.01); B29C 55/14 (2006.01); B29K 23/00 (2006.01); B29L 31/34 (2006.01);
U.S. Cl.
CPC ...
H01G 4/18 (2013.01); C08F 110/06 (2013.01); C08J 3/201 (2013.01); C08J 5/18 (2013.01); C08K 5/053 (2013.01); C08K 5/156 (2013.01); C08K 5/1575 (2013.01); C08L 23/12 (2013.01); H01G 4/33 (2013.01); B29C 47/0021 (2013.01); B29C 47/0057 (2013.01); B29C 55/143 (2013.01); B29K 2023/12 (2013.01); B29K 2995/0053 (2013.01); B29L 2031/3406 (2013.01);
Abstract
A polypropylene (F) for film condensers having the following requirements: (1) an MFR (JIS K 7210, 230° C., 2.16 kg load) in the range of 1-10 (g/10 min), (2) an mmmm fraction that is at least 93%, (3) a <2,1>erythro position defect amount as measured usingC-NMR that is less than 0.1 mol %, (4) ash content obtained by complete combustion in atmosphere that is at most 50 ppm, (5) chlorine content as measured by ion chromatography that is at most 5 ppm; and (6) is obtained by including a propylene homopolymer for which Mw/Mn as measured via GPC is 6.5-12 and an α-crystal nucleating agent with a melting point of at most 290° C.