Process for the production of colored polyolefin molded articles and colorants used therein
US4233206A · kind A · utility
17Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1975 |
| Grant date | Nov 11, 1980 |
| Priority date | — |
| Expiry date | Nov 6, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S534/03
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for the production of a colored polyolefin molded articles comprising adding to a polyolefin either a compound of the formula D--CH.sub.2 O.OC--R]).sub.n as a colorant wherein D is the residue of a common organic pigment, R is an alkyl, alkenyl or aryl group having up to 20 carbon atoms and n is an integer of 1-4, or a mixture of the compound of the above formula with at least one usual pigment, to form a mixture, and then molding the mixture thereby producing the desired colored articles. This invention also relates to the compound of said formula and to a mixture thereof with at least one common pigment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.