Free amine-containing polymeric dyes
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 13, 1982
Issued Date -
N/A
app pub date -
Aug 11, 1980
filing date -
Dec 8, 1975
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Soluble polymeric colorants composed of free amine groups and chromophoric groups covalently bonded to an organic backbone are disclosed. The number of free amine groups is not less than one-half the number of chromophoric groups. The colorants are characterized by being free of sulfonate, phosphonate and carboxylate groups. The preparation and use of these colorants is also disclosed.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully