US5043098A
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US
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A non-ionic dispersing agent
Assignee: DSM IP Assets BV
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Filing: 1988-11-18
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Granted: 1991-08-27
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Expires: 2008-11-18
Abstract
Abstract A nonionic dispersing agent suitable for use in the production of aqueous polyurethane dispersions, said agent having the formula: ##STR1## wherein R 1 represents a monovalent hydrocarbon radical containing 1-12 carbon atoms; R 2 represents hydrogen or a mixture thereof with methyl and/or ethyl, at least 40% of the R 2 substituents in said mixture being hydrogen; R 3 represents an isocyanate-reactive organic radical; R 4 represents H or an isocyanate-reactive organic radical; Z represents an alkylene radical containing 2-4 carbon atoms; m is an integer from 5 to 150, and n is 0 or 1.
Inventors
- 👤 John C. Padget
- 👤 David A. Pears
- 👤 Stephen G. Yeates
- 👤 Gerardus C. Overbeek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:06
CPC Classifications
C; C07; C07C; C07C229/00; C07C229/02; C07C229/04; C07C229/06; C07C229/10; C07C229/12; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/0838; C08G18/0842; C08G18/0861; C08G18/0866; C08G18/28; C08G18/40; C08G18/48; C08G18/50; C08G18/5021; C09; C09K; C09K23/00; C09K23/16; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/905; Y10S516/914; Y10S516/916
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
79 words
A non-ionic dispersing agent having the general formula: ##STR21## wherein R 1 represents a a C 1 -C 4 alkyl radical; R 2 represents hydrogen or a mixture thereof with methyl and/or ethyl, at least 40% of the R 2 substituents in said mixture being hydrogen; R 3 represents an isocyanate-reactive organic radical; R 4 represents H or an isocyanate-reactive organic radical; Z represents 1,2-propylene; m is an integer from 5 to 150, and n is 0 or 1.
Claim 2
Dependent Claim
79 words
A non-ionic dispersing agent having the general formula: ##STR21## wherein R 1 represents a a C 1 -C 4 alkyl radical; R 2 represents hydrogen or a mixture thereof with methyl and/or ethyl, at least 40% of the R 2 substituents in said mixture being hydrogen; R 3 represents an isocyanate-reactive organic radical; R 4 represents H or an isocyanate-reactive organic radical; Z represents 1,2-propylene; m is an integer from 5 to 150, and n is 0 or 1.
Claim 3
Dependent Claim
12 words
A dispersing agent according to claim 1 wherein R 1 is methyl.
Claim 4
Dependent Claim
19 words
A dispersing agent according to claim 1 wherein at least 60% of the R 2 substituents are hydrogen atoms.
Claim 5
Dependent Claim
40 words
A dispersing agent according to claim 1 wherein R 3 , and R 4 when not hydrogen, is an organic radical containing --OH, --SH, --COOH, --PO 3 H 2 or --NHR in which R is hydrogen or optionally substituted alkyl.
Claim 6
Dependent Claim
16 words
A dispersing agent according to claim 4 wherein the hydroxy-containing organic radical is hydroxyalkyl or hydroxyalkoxycarbonylalkyl.
Claim 7
Dependent Claim
48 words
A dispersing agent according to claim 1 having the formula: ##STR22## wherein R 1 , R 2 , Z and m are as defined in claim 1; R 5 represents hydrogen, methyl or ethyl; p is an integer from 1 to 100, and x is 1 or 2.
Claim 8
Dependent Claim
26 words
A dispersing agent according to claim 6 wherein Z is a 1,2 polypropylene radical of which the secondary carbon atom is attached to the nitrogen atom.
Claim 9
Dependent Claim
68 words
A dispersing agent according to claim 1 having the formula: ##STR23## wherein R 1 , R 2 , Z and m are as defined in claim 1; R 6 represents hydrogen, halogen or C 1-4 - alkyl; Q represents a divalent electron-withdrawing group; T represents a divalent hydrocarbon radical which may carry substituents or contain hetero atoms; XH represents an isocyanate-reactive group, and x is 1 or 2.
Claim 10
Dependent Claim
32 words
A dispersing agent according to claim 1 having the formula: ##STR24## wherein R 1 , R 2 , R 6 , Z, Q, T, and m are as defined in claim 8.
Claim 11
Dependent Claim
28 words
A dispersing agent according to claim 8 or claim 9 wherein Z is a 1,2-propylene radical of which the secondary carbon atom is attached to the nitrogen atom.
Claim 12
Dependent Claim
18 words
A dispersing agent according to any of claims 8 to 9 wherein R 6 is hydrogen or methyl.
Claim 13
Dependent Claim
33 words
A dispersing agent according to claim 1 having the formula: ##STR25## wherein R 1 , R 2 , R 3 , R 4 , Z and m are as defined in claim 1.
Claim 14
Dependent Claim
19 words
A dispersing agent according to claim 12 wherein R 3 is hydroxyethyl and R 4 is hydrogen or hydroxyethyl.
References Cited (Backward Citations)
US3125517A
Cited
GB420545A
Cited
US2653932A
Cited
US3206512A
Cited
US3255253A
Cited
US3454646A
Cited
US4235811A
Cited
US4529744A
Cited
US4568354A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-08-26 | 1995-02-25 | 1995-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-26 | 1999-02-25 | 1999-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-26 | 2003-02-25 | 2003-08-27 | $7700.00 | Window Closed / Lapsed |