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. 26, 2013
Filed:
Nov. 23, 2012
Shin-etsu Chemical Co., Ltd., Chiyoda-ku, JP;
Tadashi Araki, Annaka, JP;
Takafumi Sakamoto, Annaka, JP;
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Abstract
A method for preparing an organopolysiloxane compound by mixing (A) an organopolysiloxane of the formula (1): wherein Ris a monovalent hydrocarbon group and may be the same or different, R is a divalent hydrocarbon group, and n is an integer of at least 2, with (B) an organic compound of the formula (2) or (3): wherein Ris H or a monovalent hydrocarbon and Ris a divalent hydrocarbon and (C) an organic compound of the formula (4): wherein Rand R, respectively, have the same meanings as defined above, Ris a monovalent hydrocarbon group, and p is 0 or 1, wherein components (A), (B) and (C) are reacted with one another under conditions that a ratio between an amino group equivalent Pin component (A) and an isocyanate group equivalent Pin components (B) and (C) is such that 0.8≦(P/P) and a molar ratio between component (B) and component (C) is such that 0.6≦[component (B)/component (C)].