Coating compositions for improved block resistance
US8980993B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2009 |
| Grant date | Mar 17, 2015 |
| Priority date | — |
| Expiry date | Apr 8, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2203/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The aqueous volatile organic compound (VOC)-free coating compositions includes an acrylic latex and a vinyl acetate-ethylene latex including from 10 to 90 weight percent of a vinyl acetate-ethylene polymer, based on total weight of acrylic polymer and vinyl acetate-ethylene polymer, having a Tg from −20 to 20 degrees Celsius; and from about 10 to about 90 weight percent of an acrylic polymer, based on the total weight of acrylic polymer and vinyl acetate-ethylene polymer, the acrylic polymer comprising, in polymerized form, at least one ethylenically unsaturated (meth)acrylic monomer and from 0.01 to 10 weight percent, based on total weight of the acrylic polymer, of an acetoacetate moiety containing monomer, where the acrylic polymer has a Tg of from −20 to 20 degrees Celsius. A method of coating a substrate and substrate having at least one surface coated are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.