# US 11,306,212 B2 · Transparent resin composition, transparent coating film and transparent resin-coated glass substrate

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- Number: US 11,306,212 B2
- Document ID: US11306212B2
- Status: Granted
- Kind: B2
- Application number: 16/613,477
- Filed: 2018-05-16
- Published: 2021-01-14
- Granted: 2022-04-19
- Earliest claimed: 2017-05-24
- Assignees: Toray Industries, Inc.
- Applicants: Toray Industries, Inc.
- Inventors: Yoshihiko Inoue; Yusuke Fukuzaki; Hirokazu Iimori
- Web page: https://patentgrep.com/patent/US11306212B2

## CPC

- 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
- B32B 17/10: of synthetic resin
- C03C 17/007: {containing a dispersed phase, e.g. particles, fibres or flakes, in a continuous phase}
- C03C 17/30: with silicon-containing compounds
- C08L 33/14: of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
- C08L 43/04: Homopolymers or copolymers of monomers containing silicon
- C08L 83/04: Polysiloxanes
- C09D 7/45: Anti-settling agents
- C09D 183/04: Polysiloxanes
- C03C 2217/445: Organic continuous phases
- C03C 2217/478: Silica
- C03C 2218/119: by printing
- C08G 77/20: containing silicon bound to unsaturated aliphatic groups
- C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D)
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- C03C: CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS

## Abstract

A transparent resin composition is provided which contains at least (A) a siloxane resin, (B) an organic solvent, and two or more kinds of (C) surfactants, wherein the surfactants include (C1) a silicone-modified acrylic surfactant and (C2) a thermally decomposable fluorine-containing surfactant, and the total content of the surfactants (C1) and (C2) is 50-500 ppm with respect to the transparent resin composition. Further provided is a transparent resin composition from which a transparent coating film, that suppresses pin hole or unevenness and has a good appearance and an excellent adhesion property to an inorganic film or an organic film, can be formed even when coated by spray coating or inkjet coating.

## Claims

### Claim 1

A transparent resin composition comprising at least a siloxane resin (A), an organic solvent (B), and a plurality of surfactants (C), the surfactants including a silicon modified acrylic surfactant (C1) and a fluorine-containing heat-decomposable surfactant (C2), and a total content of the surfactants (C1) and (C2) being 50 ppm or more and 500 ppm or less in the transparent resin composition, wherein a contact angle of the transparent resin composition on a non-alkali glass is 1° or more and 12° or less, and wherein a surface tension of the transparent resin composition at 25° C. is 26 mN/m or more and 28 mN/m or less.

### Claim 2 (depends on 1)

The transparent resin composition as set forth in claim 1, wherein a ratio of a content of the surfactant (C2) to a content of the surfactant (C1), namely, a content ratio (C2)/(C1), is 0.25 or more and 4.0 or less.

### Claim 3 (depends on 1)

The transparent resin composition as set forth in claim 1, wherein a transparent coat film formed from the transparent resin composition has a refractive index of 1.46 to 1.54 at 550 nm.

### Claim 4 (depends on 1)

The transparent resin composition as set forth in claim 1, wherein a viscosity of the transparent resin composition at 25° C. is 3 mPa·s or more and 20 mPa·s or less.

### Claim 5 (depends on 1)

A photosensitive transparent resin composition from the transparent resin composition as set forth in claim 1, wherein the siloxane resin (A) has a radical polymerizable group and further contains a reactive monomer and a photo-radical polymerization initiator.

### Claim 6 (depends on 1)

A transparent coat film formed from the transparent resin composition as set forth in claim 1.

### Claim 7 (depends on 6)

A transparent resin coated glass substrate having the transparent coat film as set forth in claim 6 on a glass substrate.

### Claim 8 (depends on 6)

A decorative glass substrate comprising the transparent coat film as set forth in claim 6 and a colored layer stacked in an order of the transparent coat film on a glass substrate and the colored layer stacked on the transparent coat film.