Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1989-10-25
1991-04-23
Gallagher, John J.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
29423, 29424, 51216LP, 51284R, 156155, 1562737, 1562755, 1562757, 156344, 522 1, 522172, B32B 3100
Patent
active
050097318
ABSTRACT:
An ultraviolet-hardenable adhesive for bonding a water-swellable, ophthalmic-lens blank to a support member, the adhesive containing at least one photo-hardenable silicone oil, and at least one photoinitiator, the at least one silicone oil being selected from polysiloxanes represented by the following general formula: ##STR1## wherein each of R.sub.1 to R.sub.3 is methyl or ethyl; n.sub.1, n.sub.2 and n.sub.3 are positive integers which satisfy the specified three formulas; X.sub.1 is ##STR2## A.sub.1 is ##STR3## wherein R.sub.4 is hydrogen or methyl; and B.sub.1 is ##STR4## A method of bonding a lens blank to a support member with an adhesive, and a processing of manufacturing a lens using an adhesive, are also disclosed.
REFERENCES:
patent: 3404488 (1968-10-01), Cox et al.
patent: 4619082 (1986-10-01), Dent et al.
Sugiura Shozou
Yoshikawa Toshiharu
Gallagher John J.
Menicon Co. Ltd.
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