Coatings with improved scratch resistance
US12240990B2 · kind B2 · utility
0Cited by
9References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2019 |
| Grant date | Mar 4, 2025 |
| Priority date | — |
| Expiry date | Jun 13, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D167/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This invention relates to aliphatic polyester resins for use in coatings. More particularly this invention relates to aliphatic polyester resins containing 2,2,4,4-tetramethyl-1,3-cyclobutanediol (TMCD) that exhibit improved scratch resistance when formulated into 1 K automotive clearcoats. These polyesters can be used as the sole resin in the clearcoat binder or in combination with carbamate-functional acrylic resins and/or hydroxyl-functional acrylic and polyester resins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.