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:
Mar. 03, 2020
Filed:
Aug. 05, 2015
Mitsui Chemicals, Inc., Minato-ku, Tokyo, JP;
Yasuhisa Kayaba, Sodegaura, JP;
Hirofumi Tanaka, Tsukuba, JP;
Shoko Ono, Ichihara, JP;
Koji Inoue, Ichihara, JP;
Hiroko Wachi, Chiba, JP;
Tsuneji Suzuki, Chiba, JP;
MITSUI CHEMICALS, INC., Minato-Ku, Tokyo, JP;
Abstract
The invention provides a sealing composition including: polymer (A) containing a cationic functional group and having a weight average molecular weight of from 2,000 to 1,000,000; and a benzotriazole compound; in which the content of the polymer (A) is from 0.05 parts by mass to 0.20 parts by mass with respect to 100 parts by mass of the sealing composition; in which the content of the benzotriazole compound in the sealing composition is from 3 ppm by mass to 200 ppm by mass; and in which the sealing composition has a pH of from 3.0 to 6.5.