Unsaturated polyester resins modified by substitution, with lactic acid, of an acid and alcohol component of the polyester
US9212256B2 · kind B2 · utility
0Cited by
3References
15Claims
0Family size
Inventors
Key dates
| Filing date | Jun 8, 2011 |
| Grant date | Dec 15, 2015 |
| Priority date | — |
| Expiry date | Jun 8, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/66
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to an unsaturated polyester resin comprising a) a lactic acid-modified unsaturated polyester and b) a copolymerizable comonomer, with replacement, with lactic acid, in the composition of an initial polyester, of: The invention also relates to a thermosetting composition comprising the resin and to the uses of these resins and thermosetting compositions in moulding compositions or in general-purpose compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.