公开(公告)号：US20210317281A1

公开(公告)日：2021-10-14

申请号：US17264557

申请日：2019-07-30

Applicant: DOW SILICONES CORPORATION ,  DOW GLOBAL TECHNOLOGIES LLC

Inventor： Adam H. BRODERICK ,  Douglas A. BRUNE ,  Jarred CRAMTON ,  Mark D. FISHER ,  Jody J. HENNING ,  Mark F. SONNENSCHEIN ,  Kai SU ,  Benjamin L. WENDT

IPC: C08J9/14 ,  C08J9/06 ,  C08J9/16 ,  C08J9/00 ,  C08G77/08 ,  C08G77/12 ,  C08G77/16 ,  C08G77/20

Abstract: A composition for forming a foamed silicone elastomer is disclosed. The composition comprises: A) an organopolysiloxane having at least two silicon-bonded ethylenically unsaturated groups per molecule; B) an organohydrogensiloxane having at least two silicon-bonded hydrogen atoms per molecule; C) a hydrosilylation catalyst; D) a chemical blowing agent; and E) a physical blowing agent. The hydrosilylation catalyst C) is present in a catalytically effective amount. The chemical blowing agent D) has at least one hydroxyl (OH) group, and is present in an amount to provide a OH content >0 and

公开(公告)号：US20210087360A1

公开(公告)日：2021-03-25

申请号：US16634828

申请日：2018-07-27

Applicant: DOW SILICONES CORPORATION

Inventor： Yusheng CHEN ,  Shaohui WANG ,  Rui WANG ,  Mark D. FISHER

IPC: C08K5/55 ,  C08L83/04 ,  C08G77/16 ,  C08G77/18 ,  C08G77/20 ,  C08L27/18 ,  C08K5/14

Abstract: A handling additive composition is disclosed. The composition is useful to improve handling of silicone elastomers prepared from polydiorganosiloxanes and silicone elastomers made therewith.

公开(公告)号：US20220372304A1

公开(公告)日：2022-11-24

申请号：US17621653

申请日：2020-06-26

Applicant: DOW SILICONES CORPORATION

Inventor： Mark D. FISHER ,  Jarred Q. CRAMTON ,  Brian J. SWANTON ,  Timothy MORLEY

IPC: C09D5/33 ,  C09D7/61 ,  C09D183/04 ,  C09D163/00 ,  C09D133/08 ,  C09D133/10 ,  C08K3/36

Abstract: A hydrosilylation curable silicone elastomeric coating composition, which generally has a low viscosity to be self-leveling and/or which is designed for coating transparent substrates (such as glass) is provided, as well as a coated article comprising a substrate coated with a silicone elastomeric coating and the preparation and use thereof. The composition comprises: (i) at least one polydiorganosiloxane polymer having a viscosity of from 0.10 to 1,000 Pa.s at 25° C. and having at least two alkenyl and/or alkynyl groups per molecule; (ii) reinforcing filler comprising an MQ resin and optionally silica; (iii) an organohydrogenpolysiloxane having at least two silicon-bonded hydrogen atoms per molecule; (iv) a hydrosilylation catalyst; and (v) an adhesion promoter.

公开(公告)号：US20220169856A1

公开(公告)日：2022-06-02

申请号：US17442670

申请日：2019-03-29

Applicant: DOW SILICONES CORPORATION

Inventor： Shaohui WANG ,  Yusheng CHEN ,  Rui WANG ,  Hans Peter WOLF ,  Mark D. FISHER

IPC: C08L83/04 ,  C08G77/08 ,  C08G77/12 ,  C08G77/20 ,  C08G77/24 ,  C08K3/36 ,  C08K9/00 ,  C08K5/14 ,  C08L27/18

Abstract: Provided herein is a self-lubricating silicone elastomer composition and a self-lubricating, elastomeric material made therefrom which has a low coefficient of friction and avoids the need for “self-bleeding”. The self-lubricating silicone elastomer composition comprises: (i) 50 to 75% by weight of one or more polydiorganosiloxane polymer(s) containing from 0.01 to 0.1% by weight of alkenyl and/or alkynyl content; (ii) 3 to 15% by weight of a polydiorganosiloxane polymer having ≥0.5% by weight of alkenyl or alkynyl content; (iii) 10 to 35% by weight of reinforcing filler; and either or both of (iv) a peroxide catalyst; or (v) a hydrosilylation catalyst package.