Coating method
US6524656B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2001 |
| Grant date | Feb 25, 2003 |
| Priority date | — |
| Expiry date | Oct 17, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F220/1804
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for providing a coated substrate including: forming an aqueous coating composition including an aqueous emulsion polymer, the polymer having a glass transition temperature (Tg) from −60° C. to 80° C., formed by the free radical polymerization of at least one ethylenically unsaturated nonionic acrylic monomer, 0.1-50%, by weight based on the total weight of the polymer, ethylenically unsaturated aldehyde reactive group-containing monomer, and 0-7.5%, by weight based on the total weight of the polymer, ethylenically unsaturated acid monomer in the presence of 0.01-1.0%, by weight based on the total weight of the polymer, t-alkyl hydroperoxide, t-alkyl peroxide, or t-alkyl perester wherein the t-alkyl group includes at least 5 Carbon atoms; applying the aqueous coating composition to the substrate; and drying, or allowing to dry, the aqueous composition is provided. Also provided are a method for improving the scrub resistance of a coating, a method for lowering the minimum film formation temperature of an aqueous coating composition, and a method for improving the adhesion of a coating to a substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.