公开(公告)号：WO2022193160A1

公开(公告)日：2022-09-22

申请号：PCT/CN2021/081195

申请日：2021-03-17

Applicant: DOW SILICONES CORPORATION ,  DOW GLOBAL TECHNOLOGIES LLC ,  TANG, Zhengming ,  BALIJEPALLI, Sudhakar ,  RICCIO, Rosella ,  GOYAL, Sachit

Inventor： TANG, Zhengming ,  BALIJEPALLI, Sudhakar ,  RICCIO, Rosella ,  GOYAL, Sachit

IPC: C08G18/61 ,  C08G18/16 ,  C08G18/18 ,  C08G18/22 ,  C08G18/30 ,  C08G18/42 ,  C08G18/76 ,  C08J9/12 ,  C08J9/14 ,  C08K5/00 ,  C08K5/521 ,  C08J9/00 ,  C08G101/00

Abstract: A composition for preparing a foam comprises (A) a polyol, (B) a pre-mixture comprising (B1) a silicone resin at least partially solubilized in (B2) a physical blowing agent capable of at least partially solubilizing the silicone resin (B1), (C) a polyisocyanate, and (D) a catalyst. The silicone resin (B1) includes at least 20 mol% (R 1 3SiO 1/2) siloxy units and at least 40 mol%of (SiO 4/2) siloxy units, each based on the total moles of siloxy units present in the silicone resin (B1), with the proviso that the combined amount of (R 1 3SiO 1/2) and (SiO 4/2) siloxy units is at least 85 mol%based on the total moles of siloxy units present in the silicone resin (B1), where each R1 is independently a substituted or unsubstituted hydrocarbyl group.

公开(公告)号：WO2022194251A1

公开(公告)日：2022-09-22

申请号：PCT/CN2022/081491

申请日：2022-03-17

Applicant: DOW SILICONES CORPORATION ,  DOW GLOBAL TECHNOLOGIES LLC ,  TANG, Zhengming ,  BALIJEPALLI, Sudhakar ,  RICCIO, Rosella ,  GOYAL, Sachit

Inventor： TANG, Zhengming ,  BALIJEPALLI, Sudhakar ,  RICCIO, Rosella ,  GOYAL, Sachit

IPC: C08G18/61 ,  C08G18/16 ,  C08G18/18 ,  C08G18/22 ,  C08G18/30 ,  C08G18/42 ,  C08G18/76 ,  C08J9/12 ,  C08J9/14 ,  C08K5/00 ,  C08K5/521 ,  C08J9/00 ,  C08L75/04 ,  C08G101/00

Abstract: A composition for preparing a foam comprises (A) a polyol, (B) a pre-mixture comprising (B1) a silicone resin at least partially solubilized in (B2) a physical blowing agent capable of at least partially solubilizing the silicone resin (B1), (C) a polyisocyanate, and (D) a catalyst. The silicone resin (B1) includes at least 20 mol% (R 1 3SiO 1/2) siloxy units and at least 40 mol%of (SiO 4/2) siloxy units, each based on the total moles of siloxy units present in the silicone resin (B1), with the proviso that the combined amount of (R 1 3SiO 1/2) and (SiO 4/2) siloxy units is at least 85 mol%based on the total moles of siloxy units present in the silicone resin (B1), where each R 1 is independently a substituted or unsubstituted hydrocarbyl group.