IDiyas

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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.:

US 10421839 B1

PDFFull Text
Date of Patent:
Sep. 24, 2019

Filed:

Jun. 30, 2017

Aminoalkyl group-containing siloxane and a method for preparing the same

Applicant:

Shin-etsu Chemical Co., Ltd., Tokyo, JP;

Inventor:

Yuji Ando, Annaka, JP;

Assignee:

SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Marc S Zimmer

Int. Cl.
CPC ...
C08G 77/26 (2006.01); C08G 77/46 (2006.01); C08G 77/08 (2006.01); C08G 77/06 (2006.01); C08G 77/14 (2006.01); C08G 77/388 (2006.01); C08L 83/04 (2006.01); C08G 77/20 (2006.01);
U.S. Cl.
CPC ...
C08G 77/26 (2013.01); C08G 77/06 (2013.01); C08G 77/08 (2013.01); C08G 77/14 (2013.01); C08G 77/388 (2013.01); C08G 77/46 (2013.01); C08L 83/04 (2013.01); C08G 77/20 (2013.01);
Abstract

One of the purposes of the present invention is to provide an aminoalkyl group-containing siloxane, in particular an aminoalkyl group- and polyoxyalkylene group-containing siloxane, in which an amount of a cyclic siloxane as an impurity contained is decreased, and a method for preparing the same. The present invention is to provide a method for preparing an aminoalkyl group-containing siloxane represented by the following general formula (1): (RSiO)(RSiO)(RSiO)(SiO)(1), wherein Ris, independently of each other, a hydroxyl group, an alkoxyl group, a substituted or unsubstituted monovalent hydrocarbon group having 1 to 20 carbon atoms, or a group represented by the following formula (2), (3) or (6); —(CRH)—(NHCHCH)—NH(2), —(CRH)—O—(CHO)—(CHO)—R(3), —(CRH)—(RSiO)—SiR(6); provided that at least one of Ris the group represented by the formula (2); comprising a step of addition reacting (A) a hydrogensiloxane represented by the following general formula (9): (RSiO)(RSiO)(RSiO)(SiO)(9) with (B) a compound represented by the following formula (10) and having a protected amino group: CHR═CR—(CRH)—(NQCHCH)—NQ(10) and optionally (C) a polyether represented by the following formula (11): CHR═CR—(CRH)—O—(CHO)—(CHO)—R(11) and (D) a (poly)siloxane represented by the following formula (12): CHR═CR—(CRH)—(RSiO)—SiR(12); and a step of removing the silyl group from the amino group, hereinafter referred to as deprotection, to thereby provide said aminoalkyl group-containing siloxane represented by the formula (1).

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