Phenolic-resin-modified natural resin acid esters, processes for their preparation and their use in printing inks
US5427612A · kind A · utility
13Cited by
9References
6Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 14, 1994 |
| Grant date | Jun 27, 1995 |
| Priority date | — |
| Expiry date | Mar 14, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G16/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Phenolic-resin-modified natural resin acid esters obtained by reaction of PA1 A) natural resins or natural resin acids, PA1 B) mononuclear or polynuclear alkylolizable phenols, PA1 C) aldehydes or aldehyde acetals, PA1 D) aliphatic, cycloaliphatic or araliphatic polyols, PA1 E) magnesium compounds, PA1 F) if appropriate, fatty acids or fatty acid compounds and PA1 G) if appropriate, ethylenically unsaturated hydrocarbon resins, at a temperature of 100.degree. to 250.degree. C. and subsequent azeotropic removal of the water by distillation by means of an entraining agent at 200.degree. to 300.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.