Synthetic resin lens

Details Synthetic resin lens Synthetic resin lens

1988-09-26

1990-06-05

Henderson, Christopher

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...

524493, 5262924, 526314, G02B 300

Patent

active

049308793

ABSTRACT:
A Synthetic resin lens having a surface hard coating comprises a synthetic resin lens body and a surface hard coat deposited on the lens body. The synthetic resin lens body is made of a resin obtained by copolymerizing monomers consisting essentially as synthetic resinous components of 10 to 80 percent by weight of at least one diester of itaconic acid and mesaconic acid, 10 to 80 percent by weight of at least one allyl compound and 5 to 50 percent by weight of diethyleneglycol bis(allylcarbonate). The surface hard coat is formed by curing a coating composition comprising 50 to 800 parts by weight of at least one organic silicon compound, 100 parts by weight of colloidal silica, 50 to 600 parts by weight of a polyfunctional compound such as a polyfunctional epoxy compound, a polyalcohol, a polycarboxylic acid, or a polycarboxylic anhydride and 0.01 to 5.0 percent by weight of a curing catalyst based on the residual solids in the composition after curing.

REFERENCES:
patent: 2366495 (1945-01-01), D'Alelio
patent: 4273802 (1981-06-01), Kamada

Affiliated with

Also associated with

Rating

Synthetic resin lens does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Synthetic resin lens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Synthetic resin lens will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-488167