CA2211141A1 - Method of imparting impact resistance to a plastic ophthalmic lens, compositions for use therein and a lens prepared thereby - Google Patents

Method of imparting impact resistance to a plastic ophthalmic lens, compositions for use therein and a lens prepared thereby

Info

Publication number
CA2211141A1
CA2211141A1 CA002211141A CA2211141A CA2211141A1 CA 2211141 A1 CA2211141 A1 CA 2211141A1 CA 002211141 A CA002211141 A CA 002211141A CA 2211141 A CA2211141 A CA 2211141A CA 2211141 A1 CA2211141 A1 CA 2211141A1
Authority
CA
Canada
Prior art keywords
lens
impact resistance
compositions
plastic ophthalmic
multifunctional acrylate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002211141A
Other languages
French (fr)
Other versions
CA2211141C (en
Inventor
Sidney S. White
Kelly Benjamin
Julie S. Berzon
Hoa T. Dang
Sheila M. Tatman
Robert A. Valeri
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EssilorLuxottica SA
Original Assignee
Essilor International Compagnie Generale D'optique
Sidney S. White
Kelly Benjamin
Julie S. Berzon
Hoa T. Dang
Sheila M. Tatman
Robert A. Valeri
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/376,827 external-priority patent/US5619288A/en
Application filed by Essilor International Compagnie Generale D'optique, Sidney S. White, Kelly Benjamin, Julie S. Berzon, Hoa T. Dang, Sheila M. Tatman, Robert A. Valeri filed Critical Essilor International Compagnie Generale D'optique
Publication of CA2211141A1 publication Critical patent/CA2211141A1/en
Application granted granted Critical
Publication of CA2211141C publication Critical patent/CA2211141C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Surface Treatment Of Optical Elements (AREA)
  • Paints Or Removers (AREA)

Abstract

A method is disclosed for imparting impact resistance to a plastic ophthalmic lens. The method consists of applying a coating of a multifunctional acrylate in a solvent mixture to the back surface of the lens, and curing the multifunctional acrylate to form an impact resistance imparting coat. The multifunctional acrylate preferably has at least about 40 % by weight of a difunctional acrylate. The multifunctional acrylate preferably has a glass transition temperature less than about 60 °C. Lenses with an impact resistance imparting coat on the back, and an abrasion resistant coat on at least the front of the lens, are also disclosed.
CA 2211141 1995-01-23 1996-01-23 Method of imparting impact resistance to a plastic ophthalmic lens, compositions for use therein and a lens prepared thereby Expired - Lifetime CA2211141C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/376,827 1995-01-23
US08/376,827 US5619288A (en) 1995-01-23 1995-01-23 Impact resistant plastic ophthalmic lens
PCT/EP1996/000256 WO1996023243A1 (en) 1995-01-23 1996-01-23 Method of imparting impact resistance to a plastic ophthalmic lens, compositions for use therein and a lens prepared thereby

Publications (2)

Publication Number Publication Date
CA2211141A1 true CA2211141A1 (en) 1996-08-01
CA2211141C CA2211141C (en) 2006-03-14

Family

ID=36095740

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2211141 Expired - Lifetime CA2211141C (en) 1995-01-23 1996-01-23 Method of imparting impact resistance to a plastic ophthalmic lens, compositions for use therein and a lens prepared thereby

Country Status (1)

Country Link
CA (1) CA2211141C (en)

Also Published As

Publication number Publication date
CA2211141C (en) 2006-03-14

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Effective date: 20160125