Protective coating for window glass

• US 8,273,801 B2
• Filed: 11/02/2011
• Issued: 09/25/2012
• Est. Priority Date: 06/20/2005
• Status: Expired due to Fees

• Current Assignee: Dow Global Technologies LLC (Dow, Inc.)
• Original Assignee: Dow Global Technologies LLC (Dow, Inc.)
• Inventors: Baikerikar, Kiran, Mahdi, Syed Z.
• Primary Examiner(s): Sastri, Satya
• Application Number:
  US13/287,205
• Publication Number:
  US 20120046375A1
• Time in Patent Office: 328 Days
• Field of Search: 522/91, 525/29, 525/301, 525/929
• US Class Current: 522/91
• CPC Class Codes: C03C 17/007 containing a dispersed phase, e.g. particles, fibres or flakes, in a continuous phase
• CPC Class Codes: C03C 2217/475 Inorganic materials
• CPC Class Codes: C03C 2217/485 Pigments
• CPC Class Codes: C03C 2218/118 by roller-coating
• CPC Class Codes: C03C 2218/31 Pre-treatment
• CPC Class Codes: C08K 3/04 Carbon
• CPC Class Codes: C09D 4/00 Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
• CPC Class Codes: C09D 5/00 Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced electrically insulating plastics, resins or waxes H01B3/30; Filling pastes
• CPC Class Codes: C09D 7/61 inorganic
• CPC Class Codes: Y10S 525/925 Polymer from at least one nonethylenic monomer having terminal ethylenic unsaturation other than polyurethanes, polyesters, polyepoxides, aminoplasts, and phenoplasts
• CPC Class Codes: Y10T 428/31612 As silicone, silane or siloxane
• CPC Class Codes: Y10T 428/31645 Next to addition polymer from unsaturated monomers
• CPC Class Codes: Y10T 428/31663 As siloxane, silicone or silane
• CPC Class Codes: Y10T 428/31855 Of addition polymer from unsaturated monomers

Abstract

The invention is a composition comprising: a) one or more film forming resins having at least one functional group capable of polymerization; b) one or more reactive diluents capable of reacting with the film forming resin; c) one or more silicon, titanium, zirconium, aluminum or metal containing compounds capable of promoting adhesion of the composition to glass; d) one or more fillers capable of imparting abrasion resistance to the composition when cured; and e) one or more compounds which is reactive with the film forming resin which also contains at least one acidic moiety. The composition of the invention is useful as a frit on the window of a vehicle.

Claims

1. Compositions comprising

a) one or more film forming resins having at least one functional group capable of polymerization;

b) one or more reactive diluents capable of reacting with the film forming resin;

c) one or more compounds capable of promoting adhesion of the composition to glass comprising a Michael addition product of a siloxane further containing one or more hydrogen containing functional moieties with a compound having two or more acrylate groups wherein the addition products have four or greater siloxy groups and at least one acrylate group;

d) one or more fillers capable of imparting abrasion resistance to the composition when polymerized; and

e) one or more compounds which is reactive with the film forming resin which also contains at least one acidic moiety.

2. Compositions according to claim 1 which further comprises f) one or more pigments or dyes.

3. Compositions according to claim 2 wherein at least one of the one or more pigments are capable of blocking the transmission of ultraviolet light.

4. Compositions according to claim 3 wherein the functional groups capable of polymerization of the film-forming resin polymerize when exposed to irradiation and the composition further comprises g) one or more catalysts or initiators capable of initiating polymerization of the film-forming resin.

5. Compositions according to claim 4 wherein the one or more film-forming resins contain unsaturated moieties which polymerize when exposed to ultraviolet light and the initiator is a photoinitiator.

6. Compositions according to claim 5 wherein the one or more film forming resins contain unsaturated moieties which polymerize when exposed to electron beams.

7. Compositions according to claim 4 which further comprises one or more surfactants, dispersants, inhibitors, or mixtures thereof.

8. Compositions according to claim 4 wherein the film forming resins, and reactive diluents have acrylate functional moieties.

9. A composition according to claim 4 wherein adhesion promoter comprises a mixture of a Michael addition adduct and a high molecular weight adduct having multiple alkoxysilanes.

10. Compositions according to claim 4 wherein the one or more compounds containing at least one acidic moiety comprise one or more carboxylic acid moieties, one or more phosphate acids or a mixture thereof.

11. Compositions according to claim 8 wherein the acid moieties comprise carboxylic acids.

12. Compositions according to claim 3 wherein the pigment is carbon black.

13. Compositions according to claim 4 comprising:

a) from about 10 to about 70 parts by weight of the one or more film forming resin;

b) from about 2 to about 30 parts by weight of the one or more reactive diluents;

c) from about 0.1 to about 30 parts by weight of the one or more adhesion promoter;

d) from about 1 to about 15 parts by weight of the one or more pigments;

e) from about 5 to about 60 parts by weight of the one or more fillers;

f) from about 1 to about 10 parts by weight of the one or more compounds containing at least one acidic moiety;

g) from about 2 to about 20 parts by weight of the one or more catalysts or initiators; and

wherein the composition contains 100 parts.