METHOD OF PRODUCING OPHTHALMOLOGICAL LENSES Russian patent published in 2011 - IPC B29D11/00 G02B1/04 

Abstract RU 2422278 C2

FIELD: process engineering.

SUBSTANCE: invention relates to production of ophthalmological lenses based on silicon organic polymer hydro gel. Proposed method comprises hardening reaction mix containing silicon organic component in injection mould, bringing lens and mould in contact with water solution at 99°C for less than 1 h and, not obligatory, further lens processing. Note here that further lens processing, if made, is performed by water solutions for, at least, 6 hours. Note also that reaction mix is, notable, free of water soluble components or their admixtures, their holding time with respect to TRIS makes less than 0.9 for lens production.

EFFECT: lenses causing no discomfort for eyes.

47 cl, 8 tbl, 35 ex

Similar patents RU2422278C2

Title Year Author Number
METHOD OF FORMING CLEAR WETTABLE ARTICLES FROM SILICONE HYDROGEL 2007
  • Zanini Diana
  • Al'Tkhejm Karen
RU2469053C2
CONTACT LENSES CONTAINING WATER-SOLUBLE POLYMERS OR COPOLYMERS OF N-(2-HYDROXYALKYL)METHACRYLAMIDE 2013
  • Skejls Charlz V.
  • Makkejb Kevin P.
  • Khili Brent Mettyu
RU2640593C2
SILICONE-HYDROGELS HAVING DESIRED WATER CONTENT AND OXYGEN PERFORMANCE 2012
  • Alli Azaam
  • Ford Dzhejms D.
  • Dzhoslin Skott L.
RU2632202C2
IONIC SILICONE HYDROGELS 2012
  • Alli Azaam
  • Ford Dzhejms D.
  • Vanderlan Duglas G.
  • Dzhoslin Skott L.
RU2628073C2
SILICONE-HYDROGEL CONTACT LENSES WITH LOW PROTEIN ABSORPTION 2009
  • Pinsli Dzheremi B.
  • Adams Dzhonatan P.
  • Kkhanolkar Amit
  • Zanini Diana
  • Fadli Zokhra
  • Klark Majkl R.
  • Terner Dehvid S.
  • Ford Dzhejms D.
  • Mehdzhio Tomas L.
RU2497160C2
SILICONE POLYMERS CONTAINING SULFONIC ACID GROUPS 2013
  • Reboul Adam S.
  • Makhadevan Shivkumar
  • Ternejdzh Mishell Karmen
RU2621721C2
NON-REACTIONABLE HYDROPHILIC POLYMERS WITH TERMINAL SILOXANES AND FIELDS OF APPLICATION THEREOF 2011
  • Skejls Charl'Z
  • Venkatasubban Kunisi
  • Makhadevan Shivkumar
  • Fadli Zokhra
  • Dehvis Kehrri
  • Khili Brent Mehtt'Ju
RU2565591C2
IONIC SILOCONE HYDROGELS WITH IMPROVED HYDROLYTIC STABILITY 2014
  • Rator Osman
  • Fadli Zokhra
  • Lada Mark
  • Ford Dzhejms D.
  • Alli Azaam
  • Li Yunchen
RU2634616C9
IONIC SILICONE HYDROGELS HAVING IMPROVED HYDROLYTIC STABILITY 2009
  • Rator Osman
  • Fadli Zokhra
  • Lada Mark
  • Ford Dzhejms D.
  • Alli Azaam
  • Li Junchehn
RU2528631C2
LENS CONTAINING LOW-MOLECULAR AND HIGH-MOLECULAR WEIGHT POLYAMIDES 2013
  • Alli Azaam
  • Makhadevan Shivkumar
RU2636509C2

RU 2 422 278 C2

Authors

Alli Azaam

Zanini Diana

Ford Dzhejms D.

Makhadevan Shivkumar

Kanavan Kristi

Terner Dehvid S.

Dates

2011-06-27Published

2007-03-23Filed