Phenolic-resin-modified cyclopentadiene resins, process for the preparation thereof and use thereof
US5376719A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 4, 1994 |
| Grant date | Dec 27, 1994 |
| Priority date | — |
| Expiry date | Apr 4, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Phenolic-resin-modified cyclopentadiene resins, process for the preparation thereof and use thereof Phenolic-resin-modified cyclopentadiene resins which can be used as binder in printing inks can be advantageously directly prepared from PA1 a) from 20 to 80% by weight of cyclopentadiene compounds, PA1 b) from 1 to 40% by weight of natural resin acids, PA1 c) from 1 to 60% by weight of phenols and PA1 d) from 1 to 20% by weight of aldehydes in the presence of PA1 e) from 0.01 to 1% by weight of basic alkali metal compounds. The catalysis by basic alkali metal compounds makes possible the quantitative reaction of c) and d) in the reaction mixture of a) and b).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.