US4042413A
Expired / Lapsed
US
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Dispersing agents
Assignee: Imperial Chemical Industries Ltd
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Filing: 1974-12-11
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Granted: 1977-08-16
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Expires: 1994-12-11
Abstract
Abstract Dispersing agents comprising the adducts of one or more compounds from each of the following classes:- a) an organic compound containing two or more isocyanate groups, b) an organic compound containing two or more groups which are reactive with isocyanate groups, and c) a compound of the formula:
Inventors
- 👤 Frank Hauxwell
- 👤 James Frederick Stansfield
- 👤 Arthur Topham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:26
CPC Classifications
C; C09; C09K; C09K23/00; C09K23/16; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/2805; C09B; C09B67/00; C09B67/0071; C09B67/0084; C09B67/0085; C09B67/009; C09D; C09D17/00; C09D17/002
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
131 words
Compositions of matter comprising a finely divided dispersion containing between 5 and 70% by weight based on the total weight of the composition of a solid dyestuff or pigment in an inert liquid hydrocarbon or an inert chlorinated hydrocarbon containing dissolved therein between 5% and 100% by weight based on the weight of the pigment or dyestuff of a dispersing agent which is an adduct of 80:20 mixture of 2:4 and 2:6 diisocyanatotoluent, 1:6 hexanediol and a compound of the formula: z -- X -- E -- Q wherein Z represents --OH; X is a divalent aliphatic hydrocarbon, or a chloro substituent thereof, containing from 10 to 17 carbon atoms; Q is alkyl or alkenyl containing from 12 to 18 carbon atoms or a hydroxy substituent thereof; and E is ##STR17##
Claim 2
Dependent Claim
131 words
Compositions of matter comprising a finely divided dispersion containing between 5 and 70% by weight based on the total weight of the composition of a solid dyestuff or pigment in an inert liquid hydrocarbon or an inert chlorinated hydrocarbon containing dissolved therein between 5% and 100% by weight based on the weight of the pigment or dyestuff of a dispersing agent which is an adduct of 80:20 mixture of 2:4 and 2:6 diisocyanatotoluent, 1:6 hexanediol and a compound of the formula: z -- X -- E -- Q wherein Z represents --OH; X is a divalent aliphatic hydrocarbon, or a chloro substituent thereof, containing from 10 to 17 carbon atoms; Q is alkyl or alkenyl containing from 12 to 18 carbon atoms or a hydroxy substituent thereof; and E is ##STR17##
Claim 3
Dependent Claim
20 words
Compositions of matter as claimed in claim 1 wherein the particle size of the solid is less than 20 microns.
Claim 4
Dependent Claim
14 words
Compositions of matter as claimed in claim 1 wherein the solid is a dyestuff.
Claim 5
Dependent Claim
15 words
Compositions of matter as claimed in claim 3 wherein the dyestuff is a Disperse Dyestuff.
Claim 6
Dependent Claim
15 words
Compositions of matter as claimed in claim 1 wherein the solid is an inorganic pigment.
Claim 7
Dependent Claim
15 words
Compositions of matter as claimed in claim 1 wherein the solid is an organic pigment.
Claim 8
Dependent Claim
16 words
Compositions of matter as claimed in claim 6 wherein the organic pigment is a phthalocyanine pigment.
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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) | 1980-08-15 | 1981-02-14 | 1981-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-15 | 1985-02-14 | 1985-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-15 | 1989-02-14 | 1989-08-16 | $7700.00 | Window Closed / Lapsed |