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:
Nov. 11, 2014
Filed:
Dec. 03, 2007
Kouichi Kizu, Ichihara, JP;
Masako Takamatsu, Ichihara, JP;
Michio Tsugawa, Ichihara, JP;
Ryouichi Seki, Ichihara, JP;
Kouichi Kizu, Ichihara, JP;
Masako Takamatsu, Ichihara, JP;
Michio Tsugawa, Ichihara, JP;
Ryouichi Seki, Ichihara, JP;
Mitsui Chemicals, Inc., Minato-Ku, Tokyo, JP;
Abstract
A cyclic olefin polymer composition comprising: [A] a specific cyclic olefin polymer having a softening temperature (TMA) of 120 to 300° C.; and [B] a specific cyclic olefin polymer having a glass transition temperature (Tg) of 50° C. or lower, wherein the absolute value of the difference between n[A] and n[B] is 0.014 or less in which n[B] represents a refractive index of the cyclic olefin polymer [B] and n[A] represent that of the cyclic olefin polymer [A], and the component [A] is contained in an amount of 50 to 95 parts by weight and the component [B] is contained in an amount of 5 to 50 parts by weight (provided that the total amount of the components [A] and [B] is defined as 100 parts by weight).