Surface hardner for nylon lens

• US 4,586,996 A
• Filed: 08/21/1984
• Issued: 05/06/1986
• Est. Priority Date: 08/29/1983
• Status: Expired due to Term

• Current Assignee: Toyoda Gosei Company Limited (Toyota Motor Corporation)
• Original Assignee: Toyoda Gosei Company Limited (Toyota Motor Corporation)
• Inventors: Miyake, Hideo, Shinohara, Kazuhiro, Abe, Shunzo
• Primary Examiner(s): Ziegler, Jacob
• Application Number:
  US06/642,863
• Time in Patent Office: 623 Days
• Field of Search: 204/159.13, 351/166, 428/447, 428/475.5
• US Class Current: 522/7
• CPC Class Codes: C08F 2/50 with sensitising agents
• CPC Class Codes: C08J 2377/00 Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain of polyhydrazides C08J2379/06; of polyamide-imides or polyamide acids C08J2379/08; Derivatives of such polymers
• CPC Class Codes: C08J 7/18 using wave energy or particle radiation
• CPC Class Codes: G02B 1/041 Lenses
• CPC Class Codes: G02B 1/105 Protective coatings
• CPC Class Codes: G02B 1/14 Protective coatings, e.g. hard coatings
• CPC Class Codes: G02B 1/16 having an anti-static effect, e.g. electrically conducting coatings
• CPC Class Codes: Y10T 428/31663 As siloxane, silicone or silane
• CPC Class Codes: Y10T 428/31739 Nylon type

Abstract

A surface hardner for nylon lens comprising (a) a polyfunctional acrylic ester monomer, (b) a photoinitiator, and (c) a diluent, said photoinitiator consisting of a combination of a hydrogen abstraction type photoinitiator and an α-cleavage type photoinitiator, and optionally a silane compound containing at least one polymerizable unsaturated bond. Said surface hardner is effective for giving the nylon lens excellent impact resistance and wear resistance, and when the silane compound is incorporated, it can give also an excellent adhesion between the hardner layer and nylon lens.

Claims

1. A surface hardner for nylon lens, comprising (a) a polyfunctional acrylic ester monomer, (b) a photoinitiator, (c) a diluent, and (d) a silane compound, said photoinitiator consisting of a combination of a hydrogen abstraction type photoinitator audan α

-clevage type photoinitator and being incorporated in an amount of 0.1 to 15 parts by weight to 100 parts by weight of the polyfunctional acrylic ester monomer, and said silane compound containing at least one polymerizable unsaturated bond is additionally incorporated in an amount of 0.1 to 10% by weight based on the weight of the polyfunctional acrylic ester monomer.

2. The surface hardner for nylon lens according to claim 1, wherein the silane compound is a member selected from the group consisting of allyl group-containing silane compounds, vinyl group-containing silane compounds, and (meth)acryloyl group-containing silane compounds.

3. The surface hardner for nylon lens according to claim 2, wherein the silane compound is a member selected from the group consisting of γ

-methacryloyloxypropyltrimethoxysilane and γ

-acryloyloxypropyltrimethoxysilane.