COATING COMPOSITION AND METHOD

• US 20140057115A1
• Filed: 03/08/2013
• Published: 02/27/2014
• Est. Priority Date: 08/22/2012
• Status: Abandoned Application

• Current Assignee: Walman Optical Company (EssilorLuxottica SA)
• Original Assignee: Walman Optical Company (EssilorLuxottica SA)
• Inventors: Treadway, Gerald D.
• Application Number:
  US13/789,998
• Publication Number:
  US 20140057115A1
• Time in Patent Office: Days
• US Class Current: 428/412
• CPC Class Codes: C08G 65/18 Oxetanes
• CPC Class Codes: C08G 77/14 containing silicon bound to oxygen-containing groups C08G77/045 takes precedence
• CPC Class Codes: C08K 5/5435 containing oxygen in a ring
• CPC Class Codes: C08L 2312/06 by radiation
• CPC Class Codes: C08L 63/00 Compositions of epoxy resins; Compositions of derivatives of epoxy resins
• CPC Class Codes: C09D 171/00 Coating compositions based on polyethers obtained by reactions forming an ether link in the main chain based on polyacetals C09D159/00; based on epoxy resins C09D163/00; based on polythioether-ethers C09D181/02; based on polyethersulfones C09D181/06; Coating compositions based on derivatives of such polymers
• CPC Class Codes: C09D 183/04 Polysiloxanes
• CPC Class Codes: C09D 183/06 containing silicon bound to oxygen-containing groups C09D183/12 takes precedence
• CPC Class Codes: Y10T 428/31507 Of polycarbonate
• CPC Class Codes: Y10T 428/31663 As siloxane, silicone or silane

Abstract

A substantially solvent-free coating composition for forming a transparent, abrasion-resistant, dye-accepting coating upon a substrate, the composition comprising a binder component and a curing agent component, the binder component comprising a partially hydrolyzed organo-functional silane and an oxetane selected from the group consisting of bi- or higher-functional aromatic oxetanes.

Claims

1. A combination comprising a coated and cured composition upon the surface of a polymeric material, the combination being selected from the group consisting of:

a) a combination provided by curing on the polymeric surface a composition comprising a partially hydrolyzed organo-functional polysilane and a polymerizable aromatic oxetane, and

b) a combination provided by curing on the polymeric surface of a high index material a composition comprising a partially hydrolyzed organo-functional polysilane and a polymerizable oxetane.

2. A combination according to claim 1, wherein the oxetane comprises a bi- or higher-functional oxetane.

3. A combination according to claim 2, wherein the aromatic oxetane comprises 1,4-bis[(3-ethyl-3-oxetaneylmethoxy)methyl]benzene.

4. A combination according to claim 3, further comprising one or more ingredients selected from the group consisting of an ethylenically unsaturated monomer, a cationic initiator, and a photoinitiator.

5. A combination according to claim 1, wherein the cured composition provides an improved combination of properties selected from the group consisting of transparency, adhesion, abrasion-resistance, dye-acceptance, and stability as compared to a cured composition that includes a polymerizable glycidyl ether instead of the oxetane component.

6. A combination according to claim 1, wherein the uncured composition comprises a non-hydrolyzed silane in an amount sufficient to modify the viscosity of the coating composition.

7. A combination according to claim 1, wherein the uncured composition comprises:

a) a partially hydrolyzed alkoxy-functional silane, selected from the group consisting of epoxy-, vinyl- and acryloxy-functional alkoxysilanes,

b) a substantially non-hydrolyzed alkoxy-functional silane,

c) an ethylenically unsaturated monomer,

d) a cationic initiator, and

e) a free radical initiator.

8. A combination according to claim 1, wherein the polymeric material comprises a polycarbonate material.

9. A combination according to claim 1, wherein the combination further comprises a plurality of layers coated upon the cured composition.

10. A method of coating a composition upon the surface of a polymeric material, the method being selected from the group consisting of:

a) coating and curing on the polymeric surface a composition comprising a partially hydrolyzed organo-functional polysilane and a polymerizable aromatic oxetane, and

b) coating and curing on the polymeric surface of a high index material a composition comprising a partially hydrolyzed organo-functional polysilane and a polymerizable oxetane.