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US3905937A
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Color concentrates
Assignee: EIDP Inc
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Filing: 1973-11-09
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Granted: 1975-09-16
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Expires: 1993-11-09
Abstract
Abstract Color concentrates for coloring polymeric materials, which comprise A. COLORANT, B. DEFLOCCULATING AGENT, AND C. POLYMERIC CARRIER.
Inventors
- 👤 R T Khanna
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:18
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0071; C09B67/0084; C09B67/0085; C08; C08J; C08J3/00; C08J3/20; C08J3/22; C08J3/226; C09B67/006
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
54 words
A SOLID, PARTICLE CONCENTRATE FOR COLORING FIBER-FORMING POLYMERS, THE CONCENTRATE COMPRISING, AS ESSENTIALLY COMPONENTS, A. COLORANE, 1-80 PERCENT BY WEIGHT, B. 1-25 PECENT BY WEIGHT OF A DEFLOCCULATING AGENT OF CLASS 1 THROUGH CLASS X, AND C. A POLYMERIC CARRIER NOT OF CLASS 1 THROUGH CLASS X IN (B), COMPATIBLE WITH THE FIBER-FORMING POLYMER.
Claim 2
Dependent Claim
54 words
A SOLID, PARTICLE CONCENTRATE FOR COLORING FIBER-FORMING POLYMERS, THE CONCENTRATE COMPRISING, AS ESSENTIALLY COMPONENTS, A. COLORANE, 1-80 PERCENT BY WEIGHT, B. 1-25 PECENT BY WEIGHT OF A DEFLOCCULATING AGENT OF CLASS 1 THROUGH CLASS X, AND C. A POLYMERIC CARRIER NOT OF CLASS 1 THROUGH CLASS X IN (B), COMPATIBLE WITH THE FIBER-FORMING POLYMER.
Claim 3
Dependent Claim
18 words
The concentrate of claim 1 wherein the deflocculating agent is of Class II, Class V or Class X.
Claim 4
Dependent Claim
29 words
The concentrate of claim 2 wherein the colorant is carbon black, the carrier is polyester and the deflocculating agent is of formula (3), (4), (9), (10), (11) or (18).
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-15 | 1979-03-17 | 1979-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-15 | 1983-03-17 | 1983-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-15 | 1987-03-17 | 1987-09-16 | $7700.00 | Window Closed / Lapsed |