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US 11,965,055 B2Granted
Waterborne polyurethane acrylate emulsion and application thereof
AssigneeZhejiang UVCHEM Special Coatings Co., Ltd
InventorsBo Lv, Yuping Wang, Ligang Yu, Fuliang Peng
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Abstract
A waterborne polyurethane acrylate emulsion, comprising the following raw material components: a polyurethane acrylate prepolymer and a polyurethane acrylate oligomer. After ultraviolet curing, the waterborne polyurethane acrylate emulsion exhibits excellent mechanical strength and good wear resistance. The matt coatings produced therefrom has a fine matt fineness after curing.
Claims7
A waterborne polyurethane acrylate emulsion, characterized by comprising the following raw material components in parts by weight:
- polyurethane acrylate prepolymer 20˜80
- polyurethane acrylate oligomer 5˜30
- first UV-curable monomer 0˜50
- water 50˜70;
- preparation of the waterborne polyurethane acrylate emulsion:
- mixing a diol oligomer and a polyisocyanate so that they react to obtain a nonionic polyurethane;
- reacting the nonionic polyurethane with a second UV-curable monomer to obtain the polyurethane acrylate prepolymer having hydrophilicity;
- mixing the polyurethane acrylate prepolymer, polyurethane acrylate oligomer, and the first UV-curable monomer and dispersing them in water to obtain a waterborne polyurethane acrylate emulsion.
5 more elements
Dependencies are inferred from the claim text.