公开(公告)号：US20230024747A1

公开(公告)日：2023-01-26

申请号：US17786418

申请日：2019-12-17

Applicant: DOW SILICONES CORPORATION

Inventor： Xiuyan WANG ,  Jiang PENG ,  Yi GUO ,  Qiang HU ,  Zhiping ZENG ,  Nanguo LIU ,  Nick SHEPHARD

IPC: C09J183/04 ,  C08K9/06 ,  C08K5/54 ,  C08K5/09 ,  C08K3/26

Abstract: A one-part low modulus room temperature vulcanisable (RTV) silicone composition containing a catalyst comprising (i) a titanate and/or zirconate and (ii) a metal carboxylate salt which cures to a low modulus silicone elastomer which may be used as a non-staining (clean) sealant having high movement capability.

公开(公告)号：US20230022605A1

公开(公告)日：2023-01-26

申请号：US17786414

申请日：2019-12-17

Applicant: DOW SILICONES CORPORATION ,  DOW GLOBAL TECHNOLOGIES LLC

Inventor： Zhiping ZENG ,  Yi GUO ,  Nanguo LIU ,  Nick SHEPHARD ,  Xing WEI ,  Jiang PENG ,  Song GAO ,  Zhengming TANG ,  Hongyu CHEN

IPC: C08G65/336 ,  C08K3/013 ,  B01J31/02

Abstract: One-part condensation curable silyl-modified polymer (SMP) based sealant compositions in particular one-part condensation curable SMP based sealant compositions containing a catalyst comprising (i) a titanate and/or zirconate and (ii) a metal carboxylate salt which compositions upon cure provide elastomeric sealants having low modulus and a high elastic recovery.

公开(公告)号：US20230013216A1

公开(公告)日：2023-01-19

申请号：US17786389

申请日：2019-12-17

Applicant: DOW SILICONES CORPORATION

Inventor： Xiuyan WANG ,  Yi GUO ,  Jiang PENG ,  Zhiping ZENG ,  Qiang HU

IPC: C08G77/388 ,  C09J183/06 ,  C08G77/18 ,  C08G77/06 ,  C08K3/26

Abstract: A process for end capping and chain extending silanol terminated polydiorganosiloxanes with a mixture of one or more alkylacetoxydialkoxysilanes and one or more alkyldiacetoxyalkoxysilanes. The resulting capped polymeric material may be utilised as a polymer in e.g. a one-part alkoxy sealant composition such as, for example, an alkoxy low modulus clean (non-staining) or clear sealant composition.

公开(公告)号：US20240294711A1

公开(公告)日：2024-09-05

申请号：US18573352

申请日：2021-06-28

Applicant: DOW SILICONES CORPORATION

Inventor： Jiang PENG ,  Yi GUO ,  Xiuyan WANG ,  Zhiping ZENG ,  Ye WU

IPC: C08G77/16 ,  C08G77/08 ,  C08K3/36 ,  C09J183/06

CPC classification number: C08G77/16 ,  C08G77/08 ,  C08K3/36 ,  C09J183/06

Abstract: This disclosure relates to a process for the preparation of a one component translucent room temperature vulcanisable (RTV) silicone composition. The RTV composition comprises chain-extended alkoxy end-capped polydiorganosiloxane polymers, and tin-based catalysts. The process generates a one component translucent RTV silicone composition which is stable in storage, in the absence of moisture, and is curable in the presence of atmospheric moisture at ambient temperature. The one component translucent RTV silicone composition resulting from the process was unexpectedly found to have excellent adhesive properties towards polyvinyl chloride (PVC) substrates.