Carboxyl group-terminated polyesteramides
US5306786A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1991 |
| Grant date | Apr 26, 1994 |
| Priority date | — |
| Expiry date | Dec 16, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L63/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Carboxyl group-terminated polyesteramides comprising the reaction products of at least one diamine and a carboxyl group-terminated polyester selected from PA1 (a) a polyester prepared from at least one aliphatic and/or cycloaliphatic dicarboxylic acid and at least one polyol; PA1 (b) a polyester which is the reaction product of PA2 (i) at least one aliphatic and/or cycloaliphatic dicarboxylic acid and/or isophthalic acid, with PA2 (ii) a hydroxyl group-terminated polyester, and PA1 (c) a polyester which is the reaction product of PA2 (i) at least one aliphatic and/or cycloaliphatic dicarboxylic acid, with PA2 (ii) a polyester containing both terminal hydroxyl and terminal carboxyl groups, prepared by esterification of PA2 (iii) isophthalic acid with PA2 (iv) a hydroxyl group-terminated polyester, processes for preparing the same, and the powdered thermosetting compositions based on these polyesteramides and polyepoxy compounds for the production of powdered varnishes and paints which can be applied with a triboelectric spray gun.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.