US3922243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ketene dimer modified water-dispersible thermosettable cationic resins
Assignee: Hercules LLC
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Filing: 1973-08-31
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Granted: 1975-11-25
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Expires: 1993-08-31
Abstract
Abstract Disclosed are novel water-insoluble, water-dispersible thermosettable cationic resins derived by reaction of a watersoluble aminopolyamide, a hydrophobizing compound such as a ketene dimer and an epihalohydrin such as epichlorohydrin. The thermosettable cationic resins are water-dispersible, and aqueous dispersions thereof are stable for prolonged periods of time at relatively high solids concentration. The thermosettable cationic resins have particular utility in the sizing of paper.
Inventors
- 👤 Paul H Aldrich
- 👤 David H Dumas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:26
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/03; D21H17/05; D21H17/17; C; C08; C08G; C08G69/00; C08G69/48; D21H17/20; D21H17/33; D21H17/46; D21H17/54; D21H17/55; D21H17/57
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
51 words
A COMPOSITION CONSISTING ESSENTIALLY OF AN AQUEOUS DISPERSION OF A WATER-INSOLUBLE, WATER-DISPERSIBLE THERMOSETTABLE CATIONIC RESIN DERIVED BY REACTING (I) AN EPIHALOHYDRIN AND (II) A WATER-INSOLUBLE MODIFIED AMINOPOLYAMIDE DERIVED BY REACTING (A) A WATER-SOLUBLE LONG CHAIN AMINOPOLYAMIDE DERIVED BY REACTION OF A POLYALKYLENEPOLYAMINE AND A DICARBOXYLIC ACID, SAID AMINOPOLYAMIDE HAVING RECURRING GROUPS
Claim 2
Dependent Claim
51 words
A COMPOSITION CONSISTING ESSENTIALLY OF AN AQUEOUS DISPERSION OF A WATER-INSOLUBLE, WATER-DISPERSIBLE THERMOSETTABLE CATIONIC RESIN DERIVED BY REACTING (I) AN EPIHALOHYDRIN AND (II) A WATER-INSOLUBLE MODIFIED AMINOPOLYAMIDE DERIVED BY REACTING (A) A WATER-SOLUBLE LONG CHAIN AMINOPOLYAMIDE DERIVED BY REACTION OF A POLYALKYLENEPOLYAMINE AND A DICARBOXYLIC ACID, SAID AMINOPOLYAMIDE HAVING RECURRING GROUPS
Claim 3
Dependent Claim
50 words
A composition consisting essentially of an aqueous dispersion of a water-insoluble, water-dispersible thermosettable cationic resin derived by reacting (I) epichlorohydrin and (II) a water-insoluble modified aminopolyamide derived by reacting (a) a water-insoluble long chain aminopolyamide derived by reaction of a polyalkylenepolyamine and a dicarboxylic acid, said aminopolyamide having recurring groups
Claim 4
Dependent Claim
50 words
A composition consisting essentially of an aqueous dispersion of a water-insoluble, water-dispersible thermosettable cationic resin derived by reacting (I) epichlorohydrin and (II) a water-insoluble modified aminopolyamide derived by reacting (a) a water-insoluble long chain aminopolyamide derived by reaction of a polyalkylenepolyamine and a dicarboxylic acid, said aminopolyamide having recurring groups
Claim 5
Dependent Claim
20 words
The composition of claim 1 wherein the water-soluble long chain aminopolyamide is derived by reaction of diethylenetriamine and adipic acid.
Claim 6
Dependent Claim
20 words
The composition of claim 2 wherein the water-soluble long chain aminopolyamide is derived by reaction of diethylenetriamine and adipic acid.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-24 | 1979-05-26 | 1979-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-24 | 1983-05-26 | 1983-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-24 | 1987-05-26 | 1987-11-25 | $7700.00 | Window Closed / Lapsed |