公开(公告)号：US20220325154A1

公开(公告)日：2022-10-13

申请号：US17222329

申请日：2021-04-05

Applicant: Momentive Performance Materials Inc.

Inventor： Arindam Sannigrahi ,  Sandeep Naik ,  Meenal Mehra ,  Debarshi Dasgupta ,  Tiberiu Mircea Siclovan ,  Kwanho Chang

IPC: C09J183/04 ,  C08G77/00

Abstract: A process for producing a silicone pressure sensitive adhesive is shown and described herein. The process comprises reacting a MQ silicone resin with a polydiorganosiloxane in the absence of a solvent. The MQ silicone resin is a solid, solventless MQ resin. The reaction may be conducted in the presence of a catalyst, a chain extension reagent, or a combination thereof, and the resulting pressure sensitive adhesive can be dissolved in a solvent and the solids content adjusted. The present method provides a manner to provide a cleaner adhesive material that is free of unwanted materials such as aromatic solvents and also substantially free of cyclic siloxane impurities.

公开(公告)号：US20240409796A1

公开(公告)日：2024-12-12

申请号：US18206265

申请日：2023-06-06

Applicant: MOMENTIVE PERFORMANCE MATERIALS INC.

Inventor： Kwanho Chang ,  Yeonseok Cho ,  Tiberiu Siclovan ,  David Newsham

IPC: C09J183/08 ,  H10K50/844 ,  H10K85/10

Abstract: A silicone adhesive is shown and described herein. The silicone adhesive composition comprises a silicone resin, a silicone fluid, and an aminosilane. The aminosilane contains two or more amino groups, where the amino groups can be bound to a single silicon atom or may be bound to separate silicon atoms in a silicon core unit. The silicone adhesive compositions are suitable for use as hot melt adhesives and can be used to coat or otherwise encapsulate an article.

公开(公告)号：US12049576B2

公开(公告)日：2024-07-30

申请号：US17222329

申请日：2021-04-05

Applicant: Momentive Performance Materials Inc.

Inventor： Arindam Sannigrahi ,  Sandeep Naik ,  Meenal Mehra ,  Debarshi Dasgupta ,  Tiberiu Mircea Siclovan ,  Kwanho Chang

IPC: C09J183/04 ,  C08G77/00 ,  C08G77/44 ,  C09J183/10

CPC classification number: C09J183/04 ,  C08G77/44 ,  C08G77/70 ,  C09J183/10 ,  C08G2170/40

Abstract: A process for producing a silicone pressure sensitive adhesive is shown and described herein. The process comprises reacting a MQ silicone resin with a polydiorganosiloxane in the absence of a solvent. The MQ silicone resin is a solid, solventless MQ resin. The reaction may be conducted in the presence of a catalyst, a chain extension reagent, or a combination thereof, and the resulting pressure sensitive adhesive can be dissolved in a solvent and the solids content adjusted. The present method provides a manner to provide a cleaner adhesive material that is free of unwanted materials such as aromatic solvents and also substantially free of cyclic siloxane impurities.