公开(公告)号：US11472925B2

公开(公告)日：2022-10-18

申请号：US15928511

申请日：2018-03-22

Applicant: Momentive Performance Materials Inc.

Inventor： Pranabesh Dutta ,  Vinu Krishnan Appukuttan ,  Sandeep Naik ,  Anubhav Saxena

IPC: C08G77/04 ,  C08G77/392 ,  A61K8/899 ,  A61Q19/00 ,  C08G77/38 ,  C08G77/52 ,  C08G77/00

Abstract: Provided is a polymer of the formula: and compositions comprising the same. The polymers comprise a cyclic unsaturated group (Z3) within the siloxane polymer backbone. The polymers have been found to exhibit good thermal conductivity and may find utility in a variety of applications.

公开(公告)号：US20190292321A1

公开(公告)日：2019-09-26

申请号：US15928469

申请日：2018-03-22

Applicant: Momentive Performance Materials Inc.

Inventor： Vinu Krishnan Appukuttan ,  Pranabesh Dutta ,  Sandeep Naik ,  Anubhav Saxena ,  Takanashi Masanori

IPC: C08G77/392 ,  C08K3/22 ,  C08K3/38 ,  C09K5/06 ,  C09D11/102 ,  C08K7/00 ,  C08K7/18 ,  A61Q19/00 ,  A61K8/899 ,  A61K8/02 ,  A61K8/26 ,  A61K8/19

Abstract: Provided is a composition comprising: (A) a silicone polymer of the Formula (I): M1aM2bM3cD1dD2eD3fT1gT2hT3iQj. wherein: M1=R1R2R3SiO1/2 M2=R4R5R6SiO1/2 M3=R7R8R9SiO1/2 D1=R10R11SiO2/2 D2=R12R13SiO2/2 D3=R14R15SiO2/2 T1=R16SiO3/2 T2=R17SiO3/2 T3=R18SiO3/2 Q=SiO4/2 where R1, R2, R3, R5, R6, R8, R9, R10, R11, R13, R15, R16 are independently chosen from a hydrogen, a C1-C60 aliphatic or aromatic group or C1-C60 alkoxy group; R4, R12, R17 are independently chosen from a C1-C10 alkyl, a C1-C10 alkoxy, or R19-A-R20— where A is chosen from a group comprising an unsaturated cyclic moiety chosen from an aromatic group, a fused aromatic group, an unsaturated alicyclic group, an unsaturated heterocyclic group, or a combination of two or more thereof; R19 is chosen from a —H, a C1-C10 alkyl, allyl, vinyl, alkoxy, allyloxy, vinyloxy, acrylate, or methacrylate; and R20 is chosen from a divalent organic group; R7, R14, R18 are independently selected from hydrogen or OR22 or unsaturated monovalent radicals or radicals containing heteroatom such as oxygen, nitrogen, sulfur or radicals containing organosilane groups; and the subscripts a, b, c, d, e, f, g, h, i, j are zero or positive subject to the following limitations: 2≤a+b+c+d+e+f+g+h+i+j≤1000, b+e+h>0 and c+f+i≥0 and B) a thermally conductive filler.

公开(公告)号：US09296764B2

公开(公告)日：2016-03-29

申请号：US14102025

申请日：2013-12-10

Applicant: MOMENTIVE PERFORMANCE MATERIALS INC.

Inventor： Shreedhar Bhat ,  Sandeep Naik ,  Anubhav Saxena ,  Kenrick M. Lewis

IPC: C08F30/08 ,  C07F7/08 ,  C08F220/18 ,  C08F230/08 ,  C08G77/20 ,  C08L43/04 ,  C08L83/04 ,  G02B1/04

CPC classification number: C07F7/0838 ,  C08F220/18 ,  C08F230/08 ,  C08G77/20 ,  C08L43/04 ,  C08L83/04 ,  G02B1/043

Abstract: A composition comprising a carbocyclic group and a hydrophilic moiety attached thereto an alpha, beta-unsaturated organosilicon compound. Such compounds are useful in developing water absorbing silicone-hydrogel films. Silicone-hydrogel films provide increased oxygen to pass through a lens or other treated materials.

Abstract translation: 包含碳环基团和与α，β-不饱和有机硅化合物连接的亲水部分的组合物。 这些化合物可用于开发吸水硅氧烷水凝胶膜。 硅胶 - 水凝胶膜提供增加的氧气以通过透镜或其它处理的材料。

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：US10968351B2

公开(公告)日：2021-04-06

申请号：US15928448

申请日：2018-03-22

Applicant: Momentive Performance Materials Inc.

Inventor： Pranabesh Dutta ,  Vinu Krishnan Appukuttan ,  Sandeep Naik ,  Anubhav Saxena

IPC: C08L83/04 ,  C08L71/12 ,  C08L65/02 ,  C08K3/22 ,  C08K3/28 ,  C08K7/16 ,  C08K9/06 ,  C08L83/14 ,  C08G77/52 ,  C09J183/14 ,  C09D183/14 ,  B33Y70/00 ,  C08K3/38

Abstract: Provided is a polymer of the formula: and compositions comprising the same. The polymers comprise a cyclic unsaturated group (Z3) within the siloxane polymer backbone. The polymers have been found to exhibit good thermal conductivity and may find utility in a variety of applications.

公开(公告)号：US10795058B2

公开(公告)日：2020-10-06

申请号：US15851824

申请日：2017-12-22

Applicant: Momentive Performance Materials Inc.

Inventor： Sandeep Naik ,  Shreedhar Bhat ,  Chetan Shah ,  Anubhav Saxena ,  Raveendra Mathad

IPC: G02B1/04 ,  C08F230/08 ,  A61K8/90 ,  A61Q19/00 ,  C08F275/00 ,  C08F261/02 ,  C08L43/04

Abstract: A hydrophilic siloxane copolymer of siloxane and hydrophilic organic monomer/s The copolymers can be functionalized to make them capable of undergoing further polymerization by thermal or actinic radiations. The hydrophilicity of these polymers can be varied by varying the siloxane versus organic monomer ratio thereby going from water dispersible to soluble states. The siloxane content can be tuned accordingly in order to provide moderate to high oxygen permeability. These copolymers can be used as a single component curable composition which results in hydrogels to minimize the presence of leachable components thus by reducing the processing cost. The polymers may also find applications in personal care formulations as copolymers, film-formers, hydrogels, coating, emulsions/latex etc.

公开(公告)号：US20190292367A1

公开(公告)日：2019-09-26

申请号：US15928448

申请日：2018-03-22

Applicant: Momentive Performance Materials Inc.

Inventor： Pranabesh Dutta ,  Vinu Krishnan Appukuttan ,  Sandeep Naik ,  Anubhav Saxena

IPC: C08L83/04 ,  C08L71/12 ,  C08L65/02 ,  C08K3/22 ,  C08K3/28 ,  C08K7/16 ,  C08K9/06

Abstract: Provided is a polymer of the formula: and compositions comprising the same. The polymers comprise a cyclic unsaturated group (Z3) within the siloxane polymer backbone. The polymers have been found to exhibit good thermal conductivity and may find utility in a variety of applications.

公开(公告)号：US20190292323A1

公开(公告)日：2019-09-26

申请号：US15928511

申请日：2018-03-22

Applicant: Momentive Performance Materials Inc.

Inventor： Pranabesh Dutta ,  Vinu Krishnan Appukuttan ,  Sandeep Naik ,  Anubhav Saxena

IPC: C08G77/392 ,  A61K8/899 ,  A61Q19/00

Abstract: Provided is a polymer of the formula: and compositions comprising the same. The polymers comprise a cyclic unsaturated group (Z3) within the siloxane polymer backbone. The polymers have been found to exhibit good thermal conductivity and may find utility in a variety of applications.

公开(公告)号：US10344194B2

公开(公告)日：2019-07-09

申请号：US15716810

申请日：2017-09-27

Applicant: Momentive Performance Materials Inc.

Inventor： Sandeep Naik ,  Pranabesh Dutta ,  Vinu Krishnan Appukuttan ,  Anubhav Saxena ,  Masanori Takanashi

IPC: C08K3/22 ,  C08K3/38 ,  C09K5/10 ,  B33Y10/00 ,  C09D183/08 ,  C09J183/08

Abstract: A thermally conductive silicone composition is shown and described herein. The thermally conductive silicone composition comprises (A) an ionically modified siloxane, and (B) a thermally conductive filler comprising a first filler and a second filler, where the first filler and/or the second filler comprises a plurality of filler types, the plurality of filler types differing from one another in terms of particle size and/or morphology. The ionically modified siloxane may function as a dispersing aid or wetter for efficient dispersion of thermal conducting organic and inorganic fillers to achieve high thermal conductivity.

公开(公告)号：US20240327690A1

公开(公告)日：2024-10-03

申请号：US18128662

申请日：2023-03-30

Applicant: MOMENTIVE PERFORMANCE MATERIALS INC.

Inventor： Meenal Mehra ,  Sandeep Naik ,  Tiberiu Mircea Siclovan ,  Arindam Sannigrahi ,  Debarshi Dasgupta ,  Praveen Mishra ,  Sukanta Dolai

IPC: C09J183/02

CPC classification number: C09J183/02 ,  C08G77/70 ,  C09J2483/00

Abstract: A process for forming a silicone material is shown and described herein. The process comprises reacting (i) a MQ silicone resin, (ii) a polyorganosiloxane, and (iii) a hydrophilic functional siloxane, wherein the reaction is conducted in the absence of an external catalyst. The mixture of (i), (ii), and (iii) is self-catalyzing and does not require an external condensation catalyst. The process is suitable for forming a cured silicone material such as, for example, a pressure sensitive adhesive.