Patent US4141684A successfully refreshed from Google Patents.
US4141684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid, water-insoluble polymeric colorants and aqueous dispersions containing same
Assignee: Milliken Research Corp
•
Filing: 1977-12-22
•
Granted: 1979-02-27
•
Expires: 1997-12-22
Abstract
Abstract Liquid, water-insoluble colorants and aqueous dispersions of same are provided in which the colorant is represented by the formula R - (oleophilic polymeric constituent).sub.n, wherein R is an organic dyestuff radical, the oleophilic polymeric constituent is polyalkylene oxides and co-polymers of polyalkylene oxides in which the alkylene moiety of the polymeric constituent contains at least 3 carbon atoms and such polymeric constituent has a molecular weight of at least 500, and n is an integer of from 1 to 6.
Inventors
- 👤 Hans H. Kuhn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:00
CPC Classifications
C; C09; C09B; C09B69/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
84 words
A liquid, water-insoluble colorant having the general formula R-(oleophilic polymeric constituent) n wherein R is an organic dyestuff radical selected from the group consisting of an azo dyestuff radical and an anthraquinone dyestuff radical, the oleophilic polymeric constituent is a polyalkylene oxide and co-polymers of polyalkylene oxides in which the alkylene moiety contains at least 3 carbon atoms, said polyalkylene oxide and co-polymers of polyalkylene oxides having a molecular weight of at least 500, and n is an integer of from 1 to 6.
Claim 2
Dependent Claim
84 words
A liquid, water-insoluble colorant having the general formula R-(oleophilic polymeric constituent) n wherein R is an organic dyestuff radical selected from the group consisting of an azo dyestuff radical and an anthraquinone dyestuff radical, the oleophilic polymeric constituent is a polyalkylene oxide and co-polymers of polyalkylene oxides in which the alkylene moiety contains at least 3 carbon atoms, said polyalkylene oxide and co-polymers of polyalkylene oxides having a molecular weight of at least 500, and n is an integer of from 1 to 6.
Claim 3
Dependent Claim
40 words
The liquid, water-insoluble colorant of claim 1 wherein said polyalkylene oxide and co-polymers thereof are selected from the group consisting of polypropylene oxide, polybutylene oxide, and co-polymers thereof having a molecular weight in the range of from 2000 to 20,000.
Claim 4
Dependent Claim
104 words
An aqueous dispersion for imparting a hue to textiles consisting essentially of water and from 0.01 to 50 weight percent of a liquid, water-insoluble colorant having the general formula R-(oleophilic polymeric constituent) n wherein R is an organic dyestuff radical selected from the group consisting of an azo dyestuff radical and an anthraquinone dyestuff radical, the oleophilic polymeric constituent is polyalkylene oxide and co-polymers of polyalkylene oxides in which the alkylene moiety contains at least 3 carbon atoms, said polyalkylene oxide and co-polymers of polyalkylene oxides having a molecular weight of at least 500, and n is an integer of from 1 to 6.
Claim 5
Dependent Claim
104 words
An aqueous dispersion for imparting a hue to textiles consisting essentially of water and from 0.01 to 50 weight percent of a liquid, water-insoluble colorant having the general formula R-(oleophilic polymeric constituent) n wherein R is an organic dyestuff radical selected from the group consisting of an azo dyestuff radical and an anthraquinone dyestuff radical, the oleophilic polymeric constituent is polyalkylene oxide and co-polymers of polyalkylene oxides in which the alkylene moiety contains at least 3 carbon atoms, said polyalkylene oxide and co-polymers of polyalkylene oxides having a molecular weight of at least 500, and n is an integer of from 1 to 6.
Claim 6
Dependent Claim
37 words
The aqueous dispersion of claim 3 wherein said polyalkylene oxides and co-polymers thereof are selected from the group consisting of polypropylene, polybutylene and co-polymers thereof having a molecular weight in the range of from 2000 to 20,000.
Claim 7
Dependent Claim
23 words
The aqueous dispersion of claim 4 wherein said liquid, water-insoluble colorant is present in an amount of from 1 to 5 weight percent.
References Cited (Backward Citations)
US2131121A
Cited
US3157633A
Cited
US3154535A
Cited
US3337525A
Cited
US3449319A
Cited
US3929406A
Cited
US4051155A
Cited
US4091034A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-02-26 | 1982-08-28 | 1983-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-26 | 1986-08-28 | 1987-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-26 | 1990-08-28 | 1991-02-27 | $7700.00 | Window Closed / Lapsed |