Process for producing plastic lens comprising a primer layer, a

Details Process for producing plastic lens comprising a primer layer, a Process for producing plastic lens comprising a primer layer, a

1995-08-16

1997-12-02

Bell, Janyce

Coating processes

Optical element produced

Transparent base

427168, 427169, 4273855, 427299, 427387, 4273977, 4274071, 4274121, 4274125, 4274192, B05D 506

Patent

active

056933665

ABSTRACT:
A process for producing a plastic lens is disclosed, which comprises the steps of: providing a primer layer comprising a polyurethane on the surface of a plastic lens substrate; subsequently providing a hard coat layer comprising a silicone resin on the surface of the primer layer; and then providing a single-layer or multi-layer anti-reflection coating on the surface of the hard coat layer by depositing an inorganic material, wherein the polyurethane used for providing the primer layer is a thermosetting polyurethane.

REFERENCES:
patent: 4824927 (1989-04-01), Dobbelstein et al.
patent: 4847346 (1989-07-01), Vorwerk et al.
patent: 4977207 (1990-12-01), Hoefer et al.
patent: 5015523 (1991-05-01), Kawashima et al.
English Abstract of JP-A-61-114203 Toray.
Patent Abstracts of Japan, vol. 12, No. 401, abstract of JP-A-63 141 001, Jun. 1988.
Patent Abstracts of Japan, vol. 12, No. 315 abstract of JP-A-63 87 223, Apr. 1988.
Patent Abstracts of Japan, vol. 10, No. 7, abstract of JPA-A-60 163 001, Aug. 1985.

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