Coating composition, a process of producing a coating composition, a coated article, and a method of forming such articles
US9221940B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2009 |
| Grant date | Dec 29, 2015 |
| Priority date | — |
| Expiry date | May 6, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2003/265
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Coating compositions, processes of making coating compositions, coated articles, and methods of forming such articles. Coating compositions include a dispersion of core/shell particles. The core includes a base polymer, and the shell includes a polar polymeric stabilizing agent. One or more hydrophobic particulate fillers is embedded at least partially in the shell. Processes include: (1) selecting the base polymer; (2) selecting the stabilizing agent; (3) selecting the particulate filler(s); (4) melt-blending these, and contacting the melt-blend with water optionally with a neutralizing agent, thereby forming the coating composition including a dispersion. Coated articles include a substrate including cellulose and a dispersion on at least one surface of the substrate. Methods of making coated articles include: (1) providing a substrate including cellulose; (2) providing a coating composition including a dispersion; and (3) applying the coating composition to at least one surface of the substrate, thereby making the coated article.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.