Tinted, high DK ophthalmic molding and a method for making same

Details Tinted, high DK ophthalmic molding and a method for making same Tinted, high DK ophthalmic molding and a method for making same

2006-01-11

2008-11-25

Peng, Kuo-Liang (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S700000, C528S032000, C528S033000, C523S107000, C526S279000

Reexamination Certificate

active

07456240

ABSTRACT:
The invention relates to ophthalmic molding formulations and to tinted, high Dk ophthalmic moldings. This invention also relates to a method for making a tinted ophthalmic molding. The method comprises: (a) providing a polymer precursor having cross-linkable or polymerizable groups; (b) providing a pigment dispersion comprising an inorganic or organic pigment and a dispersing agent; (c) mixing the pigment dispersion with the polymer precursor to form a tinted prepolymer mixture; (d) dispensing the tinted prepolymer mixture into a mold; and (e) forming a tinted ophthalmic molding from the tinted prepolymer mixture, the molding comprising a polymer matrix having the pigment entrapped therein. With this method, tinted ophthalmic moldings, particularly edge-to-edge soft, tinted contact lenses having improved properties, are prepared with an improved efficiency.

REFERENCES:
patent: 4769431 (1988-09-01), Ratkowski
patent: 5106533 (1992-04-01), Hendrickson et al.
patent: 5416132 (1995-05-01), Yokoyama et al.
patent: 5451303 (1995-09-01), Heiler et al.
patent: 5508317 (1996-04-01), Muller
patent: 5760100 (1998-06-01), Nicolson et al.
patent: 5871675 (1999-02-01), Muller et al.
patent: 6149842 (2000-11-01), Lally et al.
patent: 6815074 (2004-11-01), Aguado et al.
patent: 0 093 944 (1986-08-01), None
patent: 0 578 087 (1994-01-01), None
patent: 0 584 826 (1994-03-01), None
patent: 0 343 796 (1996-03-01), None
patent: 2 039 932 (1980-08-01), None
patent: WO 94/03324 (1994-02-01), None
patent: WO 98/05690 (1998-02-01), None
patent: WO 99/02574 (1999-01-01), None
patent: WO 99/26087 (1999-05-01), None
JP200062034 Abstract, Feb. 29, 2000.
JP200066147 Abstract, Mar. 3, 2000.
International Search Report.

Affiliated with

Also associated with

Rating

Tinted, high DK ophthalmic molding and a method for making same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tinted, high DK ophthalmic molding and a method for making same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tinted, high DK ophthalmic molding and a method for making same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4020402