Aqueous compositions containing polyphenol copolymers and processes for their preparation
US5891952A · kind A · utility
14Cited by
10References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 1, 1997 |
| Grant date | Apr 6, 1999 |
| Priority date | — |
| Expiry date | Oct 1, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G12/46
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Processes for the preparation of polyphenol polymers useful as surface coatings wherein the process is carried out in the absence of organic solvents, and the polyphenol polymers are the reaction products of a phenolic polymer or copolymer, an amine, and an aldehyde, ketone, or mixture thereof; and the aqueous solutions resulting therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.