Aqueous coating compositions containing a mercaptan polyester and an aminoplast
US4089827A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 1976 |
| Grant date | May 16, 1978 |
| Priority date | — |
| Expiry date | May 5, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31794
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Curable compositions, suitable for use as surface coatings, comprise PA1 (i) 100 parts by weight, calculated on its resin-forming solids content, of an ammonium or amine salt of a carboxyl-containing polyester which contains, on average, at least two mercaptan groups directly attached to aliphatic carbon atoms per molecule and at least one aliphatic group of 8 or more carbon atoms, PA1 (ii) from 5 to 100 parts by weight, calculated on its resin-forming solids content, of a water-soluble aminoplast containing, per average molecule, directly attached to an amido nitrogen atom or atoms of urea or of a polyamino-1,3,5-triazine, at least two groups of formula --CH.sub.2 OR, where R denotes a hydrogen atom or a methyl or ethyl group, and PA1 (iii) water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.