15-10-2020 дата публикации
Номер: US20200325342A1
A method of making pigments, such as special effect pigment includes forming a first slurry including a substrate, a polymer precursor, and a radical initiator; forming a solution including an emulsifier; and combining the first slurry and the solution so that the substrate is encapsulated by a first coating. Special effect pigments formed by the method are also disclosed. 1. A method of making pigments , comprising:forming a first slurry including a substrate, and a polymer precursor, and a radical initiator;forming a solution including an emulsifier;combining the first slurry and the solution so that the substrate is encapsulated by a first coating.2. The method of claim 1 , wherein the substrate includes a single layer of material or a multi-layer structure.3. The method of claim 2 , wherein the single layer of material can include a material chosen from aluminum claim 2 , copper claim 2 , silver claim 2 , gold claim 2 , platinum claim 2 , palladium claim 2 , nickel claim 2 , cobalt claim 2 , niobium claim 2 , chromium claim 2 , tin claim 2 , combinations thereof claim 2 , and alloys thereof.4. The method of claim 1 , wherein the polymer precursor is chosen from acrylic monomers claim 1 , alcohols claim 1 , allyl monomers claim 1 , amine monomers claim 1 , anhydride monomers claim 1 , carboxylic acid monomers claim 1 , epoxide monomers claim 1 , isocyanate monomers claim 1 , silicone monomers claim 1 , styrene monomers claim 1 , functionalized styrene monomers claim 1 , vinyl esters claim 1 , vinyl ethers claim 1 , vinyl halides claim 1 , vinyl amines claim 1 , vinyl amides claim 1 , and combinations thereof.5. The method of claim 1 , wherein the radical initiator is chosen from a photoinitiator claim 1 , a thermal initiator claim 1 , and a redox initiator.6. The method of claim 5 , wherein the photoinitiator is chosen from a benzophenone claim 5 , benzoyl ether claim 5 , benzil monoketals claim 5 , dialkoxyacetophenones claim 5 , thioxanthones claim 5 , ...
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