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：US09944742B2

公开(公告)日：2018-04-17

申请号：US14492378

申请日：2014-09-22

Applicant: Momentive Performance Materials Inc.

Inventor： Anubhav Saxena ,  Sandeep Shashikant Naik ,  Monjit Phukan ,  Shreedhar Bhat

IPC: C08F283/12 ,  C08L83/14 ,  G02B1/04 ,  C08G77/48 ,  C08G77/50 ,  C08G77/38 ,  C08K3/20 ,  C07F7/18 ,  C07F7/21 ,  C08F230/08

CPC classification number: C08F283/124 ,  C07F7/1804 ,  C07F7/21 ,  C08F230/08 ,  C08G77/38 ,  C08G77/48 ,  C08G77/50 ,  C08G2210/00 ,  C08K3/20 ,  C08L83/14 ,  G02B1/043 ,  G02B2207/109 ,  C08L83/04 ,  C08L101/14 ,  C08L71/00

Abstract: A linear silicone polymer suitable for use in producing homopolymers, copolymers, polymerized emulsions, latex compositions, and hydrogel polymer films. In one aspect, a hydrophilic silicone monomer is of the Formula 1: WAmBnW  (1) Where, A is a divalent block comprising a silicone-containing pendant group. In one embodiment, the silicone-containing pendant group comprises polyalkylene oxide groups. The structure of the polymer can be controlled and tuned to provide a material with excellent wettability and oxygen permeability. The polymers are suitable for use in a variety of applications including in providing a film for forming contact lenses.

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：US11884779B2

公开(公告)日：2024-01-30

申请号：US16482739

申请日：2018-02-16

Applicant: Momentive Performance Materials Inc.

Inventor： Sukanta Dolai ,  Shreedhar Bhat ,  Meenal Mehra

IPC: C08G77/388 ,  A61K47/69 ,  A61K9/00 ,  A61K9/70 ,  A61K47/34 ,  C08G77/18 ,  G02B1/04 ,  A61K9/06 ,  C08G77/20 ,  C08G77/22 ,  C08G77/392 ,  C09D183/06 ,  C08F230/08 ,  C08G77/04 ,  A61K45/06 ,  C08G77/06

CPC classification number: C08G77/388 ,  A61K9/0051 ,  A61K9/06 ,  A61K9/7023 ,  A61K47/34 ,  A61K47/6903 ,  C08F230/08 ,  C08G77/18 ,  C08G77/20 ,  C08G77/22 ,  C08G77/392 ,  C09D183/06 ,  G02B1/043 ,  A61K45/06 ,  C08G77/045 ,  C08G77/06 ,  C08G2210/00

Abstract: A hydrophilic silicone, compositions comprising the same, and articles comprising the same are shown and described herein. The hydrophilic silicone is an ionically modified silicone compound wherein the compound comprises a zwitterionic moiety and has a net neutral charge. The hydrophilic silicone compounds may be provided as part of a composition, e.g., a composition suitable for forming a hydrogel, which may be employed to form a film material and even an article (e.g., in a contact lens).

公开(公告)号：US12116481B2

公开(公告)日：2024-10-15

申请号：US17417429

申请日：2019-12-18

Applicant: Momentive Performance Materials Inc.

Inventor： Titash Mondal ,  Murali Mg ,  Shreedhar Bhat

IPC: C08L83/06 ,  C08G77/38 ,  C08J3/20 ,  C09D5/24 ,  C09D5/32 ,  C09D183/08

CPC classification number: C08L83/06 ,  C08G77/38 ,  C08J3/203 ,  C09D5/24 ,  C09D5/32 ,  C09D183/08 ,  C08J2383/06 ,  C08J2483/08 ,  C08L2201/08 ,  C08L2203/206 ,  C08L2205/025

Abstract: A curable composition comprising a polymer A, a polymer B, and one or more fillers, wherein the polymer A includes organic molecules or siloxane molecules comprising two or more epoxy functional groups, and the polymer B includes an organic amine or a hybrid silicone amine.

公开(公告)号：US11254789B2

公开(公告)日：2022-02-22

申请号：US16482734

申请日：2018-02-16

Applicant: Momentive Performance Materials Inc.

Inventor： Meenal Mehra ,  Raveendra Mathad ,  Shreedhar Bhat

IPC: C08G77/20 ,  C08F230/08 ,  C08G77/388 ,  A61K47/69 ,  A61K9/00 ,  A61K9/70 ,  A61K47/34 ,  C08G77/18 ,  G02B1/04 ,  A61K9/06 ,  C08G77/22 ,  C08G77/392 ,  C09D183/06 ,  C08G77/04 ,  A61K45/06 ,  C08G77/06

Abstract: A hydrophilic silicone, compositions comprising the same, and articles comprising the same are shown and described herein. The hydrophilic silicone is an ionically modified silicone compound wherein the compound has a net neutral charge. The hydrophilic silicone compounds may be provided as part of a composition, e.g., a composition suitable for forming a hydrogel, which may be employed to form a film material and even an article (e.g., in a contact lens).

公开(公告)号：US20180120480A1

公开(公告)日：2018-05-03

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 ,  A61Q19/00 ,  C08L33/10 ,  C08L33/26 ,  C08L101/14 ,  C08F230/08 ,  C08L83/04 ,  A61K8/90 ,  C08F220/20 ,  C08F220/54 ,  C08F220/56 ,  C08L43/04 ,  C08F220/32

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.