Acid-dyeable polymer compositions
US6723799B2 · kind B2 · utility
22Cited by
22References
37Claims
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Inventors
Key dates
| Filing date | Aug 24, 2001 |
| Grant date | Apr 20, 2004 |
| Priority date | — |
| Expiry date | Sep 13, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An acid-dyeable polymer composition comprising (a) polymer and (b) polymeric additive comprising repeating units having the formula: or salts thereof, wherein A, B and Q, which may be the same or different, are selected from aliphatic or aromatic substituents provided that at least four carbon atoms separate any two nitrogen groups, R is an aliphatic or aromatic group, a is 1 to 5, and n is 3 to about 1,000. In addition, an acid-dyed composition prepared from the composition, a process of acid dyeing the composition and a process for preparing the composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.