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US 10,370,519 B2Granted
Matting paste composition
AssigneeAkzo Nobel Coatings International B.V.
InventorsToolika Rhoades, Justin Blair
Life of this patent
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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.
Claims18
A matting paste composition comprising:
- a) a styrene, methyl methacrylate and/or butyl methacrylate 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 40 to 60%, based on the total weight of the matting paste composition;
- 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;
- and
- g) wherein the matting paste composition is used to prepare a 2K polyurethane coating having a gloss in the range of 15 to 45 gloss units at 60° angle.
5 more elements
A matting paste composition comprising:
- a) a styrene, methyl methacrylate and/or butyl methacrylate thermoplastic styrene 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;
- and
- e) one or more organic solvents present in an amount in the range of from 40 to 60%, based on the total weight of the matting paste composition.
3 more elements
Dependencies are inferred from the claim text.