METHOD FOR MAKING OPAQUE COLORED SILICONE HYDROGEL CONTACT LENSES

Patent №

US 11,584,097

Granted

2023-02-21

Filed 2020

Owner

ALCON RESEARCH, LLC

+1 more

Lab

AI components

1

vision

Assignment

Recorded

Dataset

AIPD

2023_r1 edition

Application

16884512

The invention provides a thermal cast-molding method for producing colored silicone hydrogel contact lenses. The method of the invention comprises: (1) forming, on a molding surface of a mold, a transferable colored polymeric composite film which comprises or consists essentially of a first polymeric film, a second polymeric film and a cured colored image encapsulated therewithin; (2) dispensing a silicone hydrogel lens formulation into the lens-forming cavity of the mold; and (4) thermally curing the third polymerizable composition within the lens-forming cavity for at least about 40 minutes to form the colored silicone hydrogel contact lens, whereby the transferable, colored, and polymeric composite film detaches from the first or second molding surface and becomes integral with the body of the silicone hydrogel contact lens.

VisionB29D 11/00134B29D 11/00317B29D 11/00038B29D 11/00894B29D 11/00903C07F 7/0889C08L 83/04G02B 1/043

AI classification

Vision0.72
Planning0.03
Natural language0.00
Speech0.00
AI hardware0.00
Machine learning0.00
Evolutionary computation0.00
Knowledge representation0.00

Ownership

ALCON RESEARCH, LLC

assignment · 554930078

ALCON INC.

assignment · 554930326

Assignors

ZHANG, STEVE YUN, YIN, CHANGHONG, BREITKOPF, RICHARD CHARLES, ALCON RESEARCH, LLC

On an employer assignment, the assignors are typically the inventors.

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