# US 2016/0355692 A1 · Matting Paste Composition

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- Number: US 2016/0355692 A1
- Document ID: US20160355692A1
- Status: Published application
- Kind: A1
- Application number: 15/242,884
- Filed: 2016-08-22
- Published: 2016-12-08
- Earliest claimed: 2012-07-24
- Assignees: Akzo Nobel Coatings International B.V.
- Applicants: Akzo Nobel Coatings International B.V.
- Inventors: Toolika Rhoades; Justin Blair
- Web page: https://patentgrep.com/patent/US20160355692A1

## CPC

- C08K 5/17: Amines; Quaternary ammonium compounds
- C08K 3/36: Silica
- C08K 5/3435: Piperidines
- C08K 5/3475: condensed with carbocyclic rings
- C09D 7/42: Gloss-reducing agents
- C09D 7/48: Stabilisers against degradation by oxygen, light or heat
- C09D 17/00: Pigment pastes, e.g. for mixing in paints (artists' paints C09D5/06)
- C09D 175/04: Polyurethanes
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)
- 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)

## Abstract

The invention is directed to a matting paste composition comprising: a) thermoplastic non-hydroxy-functional acrylic resin; b) hindered amine light stabilizer; c) UV absorber; d) amorphous, untreated fumed silica, flattener; and e) one or more organic solvents.

## Claims

### Claim 1

A matting paste composition comprising:
a) thermoplastic non-hydroxy-functional acrylic resin having a weight average molecular weight in the range from about 50,000 to about 100,000 and present in an amount in the range of from about 15 to about 35%, based on the total weight of the matting paste composition;
b) hindered amine light stabilizer present in an amount in the range of from about 1.5 to about 8%, based on the total weight of the matting paste composition;
c) UV absorber present in an amount in the range of from about 2 to about 8%, based on the total weight of the matting paste composition;
d) amorphous, untreated fumed silica, flattener present in an amount in the range of from about 7 to about 13%, based on the total weight of the matting paste composition;
e) one or more organic solvents present in an amount in the range of from about 40 to about 60%, based on the total weight of the matting paste composition; and
f) from about 2% to about 14% castor oil based on the total weight of the matting paste composition, wherein the castor oil is a triglyceride of 90% ricinoleic acid, having a molecular weight of about 900, a refractive index of 1.4775, and an OH value of 164.

### Claim 2 (depends on 1)

The matting paste according to claim 1, wherein the matting paste composition is free of extender pigments.

### Claim 3 (depends on 1)

The matting paste according to claim 1, wherein the thermoplastic non-hydroxy-functional acrylic resin has a Tg in the range of from 50-100° C.

### Claim 4 (depends on 1)

The matting paste according to claim 1, wherein the hindered amine light stabilizer is selected from the group consisting of Bis (1,2,2,6,6-pentamethyl-4-piperidyl) sebacate, methyl (1,2,2,6,6-pentamethyl-4-piperidyl) sebacate, and combinations thereof.

### Claim 5 (depends on 1)

The matting paste according to claim 1, wherein the UV absorber is a benzotriazol type absorber.

### Claim 6 (depends on 1)

The matting paste according to claim 1, wherein the organic solvent is selected from the group consisting of t-butyl acetate, parachlorobenzotrifluoride, methyl amyl ketone, ethyl 3-ethoxy propionate, and combinations thereof.

### Claim 7 (depends on 1)

A liquid coating composition comprising the matting paste composition according to claim 1.

### Claim 8 (depends on 7)

A liquid coating composition according to claim 7, wherein the coating composition is a 2K polyurethane coating having a gloss in the range of 0 to 60 gloss units at 60° angle.

### Claim 9 (depends on 8)

A liquid coating composition according to claim 8, wherein the coating composition is a topcoat or a clearcoat.