Cross-linkable structurally colored polymers, their preparation and their use in compositions for coatings
US4239868A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 1978 |
| Grant date | Dec 16, 1980 |
| Priority date | — |
| Expiry date | Jan 24, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31895
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Structurally colored polymers, formed by polymerizing monomers of the acrylic type, containing 0.5% to 20% by weight of dyestuff in copolymerized form or grafted form which have a number-average molecular weight between 1000 and 12,880 g. and contain m hydroxy functions and n groups of the formula: ##STR1## in which X.sub.1 is hydrogen, chlorine, bromine or methyl; PA1 and R.sub.1 and R.sub.2 are the same or different and represent hydrogen, chlorine, methyl, phenyl, substituted phenyl or carboxyl; PA1 m being a number from 0 to 49 PA1 and n being a number from 2 to 70 PA1 such that the sum m+n is from 7 to 70 PA1 and the ratio m/n is from 0 to 2.4. These polymers are used in particular for the formation of colored coating on various supports and surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.