Color concentrates and polymer compositions containing the same, and methods of making the same
US5670561A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1996 |
| Grant date | Sep 23, 1997 |
| Priority date | — |
| Expiry date | Jun 13, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J3/226
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides a color concentrate comprising (a) at least one resin selected from the group consisting of a polymer of a diene, a rosin material, a coumarone-indene resin, a polymer of vinyl aromatic monomer having an M n of from about 500 to about 4000, a wax and a mixture of two or more thereof, (b) at least one resin selected from the group consisting of a copolymer of an olefin and an acrylate or a methacrylate, a polymer of a vinyl aromatic monomer having an M n of at least about 10,000 and a mixture thereof, and (c) at least one colorant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.