Liquid to pasty dyestuff preparations
US3948828A · kind A · utility
16Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 8, 1974 |
| Grant date | Apr 6, 1976 |
| Priority date | — |
| Expiry date | Apr 8, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Liquid to pasty dyestuff preparations are described consisting of at least 35 % of an optionally hydrous solvent from the class of alcohols, esters, ethers or ketones having a boiling point of above 90.degree.C, at least 10 % and at most 40 % of a dyestuff or optical brightener and at least 5 % and at most 25 % of a partially or fully synthetic thermostable synthetic resin present in the dissolved form. These preparations are useful for the coating of compounds of thermoplastic high polymers in the form of granulates or in the form of flakes or powders, particularly those made from polyester, polyamide and polypropylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.