Carboxy-functional polyester and diester derivatives
US9932442B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2014 |
| Grant date | Apr 3, 2018 |
| Priority date | — |
| Expiry date | Sep 22, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L67/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to new carboxy-functional polyester and diester derivatives preparable by ring-opening reaction of (A) at least one anhydride of the formula (I)where R1═H, C1 to C24 alkyl, or C2 to C24 alkenyl with (B) at least one hydroxy-functional component, where (B1) the polyester derivatives are prepared using at least one linear hydroxy-functional polyester prepared using 7 to 95 mol %, based on the total amount of the monomers used in preparing the polyester (B1), of at least one difunctional monomer (b1) with aliphatic groups with 12 to 70 carbon atoms between the functional groups, and (B2) the diester derivatives are prepared using at least one dihydroxy-functional component which has an aliphatic group with 12 to 70 carbon atoms between the hydroxyl groups. The present invention further relates to aqueous compositions comprising at least one such polyester derivative and/or diester derivative, and water. The present invention relates, moreover, to the use of the polyester and/or diester derivatives for producing liquid-crystalline phases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.