公开(公告)号：US20210009762A1

公开(公告)日：2021-01-14

申请号：US17038293

申请日：2020-09-30

Applicant: Alcon Inc.

Inventor： Steve Yun Zhang ,  Daqing Wu ,  Junhao Ge ,  Richard Charles Breitkopf ,  Xinming Qian ,  Zach Munoz ,  Matthew D. Nelson ,  Augustine Twum Kumi ,  Weihong Lang ,  Ying Zheng ,  Feng Jing ,  Frank Chang

IPC: C08G77/442 ,  C08G77/20 ,  C08G77/388 ,  C08G77/392 ,  C08G77/14 ,  C08L83/10 ,  G02B1/04 ,  C08G77/12 ,  B29D11/00 ,  G02C7/04

Abstract: The present invention generally relates to inherently wettable silicone hydrogel contact lenses having relatively high oxygen permeability, relatively high equilibrium water content and relatively low elastic modulus. The present invention is also related to a method for making such inherently wettable silicone hydrogel contact lenses.

公开(公告)号：US20190300654A1

公开(公告)日：2019-10-03

申请号：US16365973

申请日：2019-03-27

Applicant: Alcon Inc.

Inventor： Daqing Wu ,  Steve Yun Zhang ,  Junhao Ge ,  Richard Charles Breitkopf ,  Augustine Twum Kumi ,  Weihong Lang

IPC: C08G77/442 ,  G02B1/04 ,  B29D11/00

Abstract: The invention provides a method for making silicone hydrogel contact lenses. The method of the invention is characterized by using an organic solvent as a processing-aid tool for controlling lens diameter without significantly affecting lens equilibrium water content during cast-molding of soft contact lenses from a polymerizable composition. By adjusting the weight percentage of the organic solvent in a polymerizable composition for making SiHy contact lenses, one can adjust lens diameter of produced SiHy lenses to meet target without affecting adversely the lens properties.

公开(公告)号：US11945895B2

公开(公告)日：2024-04-02

申请号：US17199158

申请日：2021-03-11

Applicant: Alcon Inc.

Inventor： Yuan Chang ,  Junhao Ge ,  Steve Yun Zhang ,  Weihong Lang

IPC: C08F283/12 ,  C08G77/06 ,  C08G77/388 ,  C08G77/442 ,  C08L83/08 ,  C08L83/12 ,  C09K9/02 ,  G02B1/04

CPC classification number: C08F283/124 ,  C08G77/06 ,  C08G77/388 ,  C08G77/442 ,  C08L83/08 ,  C08L83/12 ,  C09K9/02 ,  G02B1/043 ,  C08G2210/00 ,  C08L2312/06 ,  C09K2211/1088 ,  G02B2207/109

Abstract: The invention provides a class of photochromic polydiorganosiloxane vinylic crosslinkers. Each of the photochromic polydiorganosiloxane vinylic crosslinkers of the invention comprise (1) a polydiorganosiloxane polymer chain comprising dimethylsiloxane units and photochromic siloxane unit having one methyl substituent and one organic substituent having a photochromic moiety that capable of undergoing a reversible color change upon exposure to UV-irradiation or high-energy-violet light; (2) two terminal ethylenically-unsaturated groups. The invention also provides a soft photochromic contact lens, especially a photochromic silicone hydrogel contact lens, which comprises a crosslinked polymeric material comprising repeating units of at least one of such a class of photochromic polydiorganosiloxane vinylic crosslinkers. The invention further provides a method of producing a photochromic contact lens from a polymerizable composition comprising at least one of such a class of photochromic polydiorganosiloxane vinylic crosslinkers.

公开(公告)号：US20220275154A1

公开(公告)日：2022-09-01

申请号：US17742559

申请日：2022-05-12

Applicant: Alcon Inc.

Inventor： Steve Yun Zhang ,  Daqing Wu ,  Junhao Ge ,  Richard Charles Breitkopf ,  Xinming Qian ,  Zach Munoz ,  Matthew D. Nelson ,  Augustine Twum Kumi ,  Weihong Lang ,  Ying Zheng ,  Feng Jing ,  Frank Chang

IPC: C08G77/442 ,  C08G77/20 ,  C08G77/388 ,  C08G77/392 ,  C08G77/14 ,  C08L83/10 ,  G02B1/04 ,  C08G77/12 ,  B29D11/00 ,  G02C7/04

Abstract: The present invention generally relates to inherently wettable silicone hydrogel contact lenses having relatively high oxygen permeability, relatively high equilibrium water content and relatively low elastic modulus. The present invention is also related to a method for making such inherently wettable silicone hydrogel contact lenses.

公开(公告)号：US11346982B2

公开(公告)日：2022-05-31

申请号：US17038266

申请日：2020-09-30

Applicant: Alcon Inc.

Inventor： Daqing Wu ,  Junhao Ge ,  Steve Yun Zhang ,  Richard Charles Breitkopf ,  Xinming Qian ,  Zach Munoz ,  Matthew D. Nelson ,  Augustine Twum Kumi ,  Weihong Lang ,  Ying Zheng ,  Feng Jing ,  Frank Chang

IPC: G02B1/04 ,  C08L83/04 ,  C08F230/08 ,  B29D11/00

Abstract: The present invention generally relates to inherently wettable silicone hydrogel contact lenses having relatively high oxygen permeability, relatively high equilibrium water content and relatively low elastic modulus. The present invention is also related to a method for making such inherently wettable silicone hydrogel contact lenses.

公开(公告)号：US20210284778A1

公开(公告)日：2021-09-16

申请号：US17197460

申请日：2021-03-10

Applicant: Alcon Inc.

Inventor： Yuan Chang ,  Junhao Ge ,  Steve Yun Zhang ,  Weihong Lang

IPC: C08F283/12 ,  G02B1/04 ,  C08G77/06 ,  C08G77/442 ,  C08L83/12 ,  C09K9/02

Abstract: The invention provides a class of photochromic polydiorganosiloxane vinylic crosslinkers. Each of the photochromic polydiorganosiloxane vinylic crosslinkers of the invention comprise (1) a polydiorganosiloxane polymer chain comprising dimethylsiloxane units and photochromic siloxane unit having one methyl substituent and one organic substituent having a photochromic moiety that capable of undergoing a reversible color change upon exposure to UV-irradiation or high-energy-violet light; (2) two terminal ethylenically-unsaturated groups. The invention also provides a soft photochromic contact lens, especially a photochromic silicone hydrogel contact lens, which comprises a crosslinked polymeric material comprising repeating units of at least one of such a class of photochromic polydiorganosiloxane vinylic crosslinkers. The invention further provides a method of producing a photochromic contact lens from a polymerizable composition comprising at least one of such a class of photochromic polydiorganosiloxane vinylic crosslinkers.

公开(公告)号：US11427685B2

公开(公告)日：2022-08-30

申请号：US16365973

申请日：2019-03-27

Applicant: Alcon Inc.

Inventor： Daqing Wu ,  Steve Yun Zhang ,  Junhao Ge ,  Richard Charles Breitkopf ,  Augustine Twum Kumi ,  Weihong Lang

IPC: B29D11/00 ,  C08G77/442 ,  G02B1/04 ,  B29K83/00 ,  B29K105/00 ,  C08G77/00

Abstract: The invention provides a method for making silicone hydrogel contact lenses. The method of the invention is characterized by using an organic solvent as a processing-aid tool for controlling lens diameter without significantly affecting lens equilibrium water content during cast-molding of soft contact lenses from a polymerizable composition. By adjusting the weight percentage of the organic solvent in a polymerizable composition for making SiHy contact lenses, one can adjust lens diameter of produced SiHy lenses to meet target without affecting adversely the lens properties.

公开(公告)号：US20210011197A1

公开(公告)日：2021-01-14

申请号：US17038266

申请日：2020-09-30

Applicant: Alcon Inc.

Inventor： Daqing Wu ,  Junhao Ge ,  Steve Yun Zhang ,  Richard Charles Breitkopf ,  Xinming Qian ,  Zach Munoz ,  Matthew D. Nelson ,  Augustine Twum Kumi ,  Weihong Lang ,  Ying Zheng ,  Feng Jing ,  Frank Chang

IPC: G02B1/04 ,  C08L83/04

Abstract: The present invention generally relates to inherently wettable silicone hydrogel contact lenses having relatively high oxygen permeability, relatively high equilibrium water content and relatively low elastic modulus. The present invention is also related to a method for making such inherently wettable silicone hydrogel contact lenses.

公开(公告)号：US20240018309A1

公开(公告)日：2024-01-18

申请号：US18465610

申请日：2023-09-12

Applicant: Alcon Inc.

Inventor： Steve Yun Zhang ,  Daqing Wu ,  Junhao Ge ,  Richard Charles Breitkopf ,  Xinming Qian ,  Zach Munoz ,  Matthew D. Nelson ,  Augustine Twum Kumi ,  Weihong Lang ,  Ying Zheng ,  Feng Jing ,  Frank Chang

IPC: C08G77/442 ,  C08G77/20 ,  C08G77/388 ,  C08G77/392 ,  C08G77/14 ,  C08L83/10 ,  G02B1/04 ,  C08G77/12 ,  B29D11/00 ,  G02C7/04

CPC classification number: C08G77/442 ,  C08G77/20 ,  C08G77/388 ,  C08G77/392 ,  C08G77/14 ,  C08L83/10 ,  C08L2201/10 ,  C08G77/12 ,  B29D11/00134 ,  G02C7/04 ,  G02B2207/109 ,  C08G2210/00 ,  G02B1/043

Abstract: The present invention generally relates to inherently wettable silicone hydrogel contact lenses having relatively high oxygen permeability, relatively high equilibrium water content and relatively low elastic modulus. The present invention is also related to a method for making such inherently wettable silicone hydrogel contact lenses.

公开(公告)号：US20230384482A1

公开(公告)日：2023-11-30

申请号：US18321828

申请日：2023-05-23

Applicant: Alcon Inc.

Inventor： Robert Carey Tucker ,  Pushkar S. Varde ,  Weihong Lang ,  Paul William Oyler

IPC: G02B1/04 ,  G02C7/04 ,  B29D11/00

CPC classification number: G02B1/043 ,  G02C7/04 ,  B29D11/00125

Abstract: The invention is directed to a sandwich colored hydrogel contact lenses lens, comprising: a pupil section, a generally annular iris section surrounding the pupil section, wherein the iris section having at least one colored, printed, opaque, intermittent pattern, wherein the said pattern is covered by a clear donut shape-layer layer, wherein the clear donut shape-layer layer is on inner surface of lens to the observer and has a thickness at least 25 μm. And the method make such lenses using a common polypropylene base curve (BC Mold 1) and two different front curve molds (FC Mold 1, FC Mold 2) that provided different volume gaps to accommodate the size requirements of the two layers.