Patent US4122071A successfully refreshed from Google Patents.
US4122071A
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Water-soluble thermosetting resins and use thereof
Assignee: Japan Carlit Co Ltd
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Filing: 1977-09-14
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Granted: 1978-10-24
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Expires: 1997-09-14
Abstract
Abstract Disclosed is a novel water-soluble thermosetting resin which has the property of providing paper with a nearly constant wet and dry strength over a wide pH range according to methods of wet-end additions or surface applications.
Inventors
- 👤 Koichi Moriya
- 👤 Iwao Honda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:55
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/34; D21H17/37; C; C08; C08F; C08F220/00; C08F220/02; C08F220/52; C08F220/54; D21H17/38; D21H17/39; D21H17/41; D21H17/42; D21H17/43; D21H17/44; D21H17/45; D21H17/455; Y; Y10; Y10S; Y10S526/00; Y10S526/923
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
152 words
A thermosetting resin of the formula ##STR15## wherein: R 1 , R 2 and R 3 are independently selected from the group consisting of hydrogen and a methyl group, R 4 and R 5 are each an alkyl group having 1 to 3 carbon atoms, A is an alkylene group having 2 to 6 carbon atoms, X is selected from the group consisting of chlorine, bromine and iodine, Y is an anion selected from the group consisting of nitrate ion, chlorine ion, sulfate ion and phosphate ion, p, q, r and s are molar ratios of the recurring units arranged linearly and irregularly, and are the whole numbers which are q/(p + q) = 0.1-1.0, r/(p + q + r + s) = 0.001-0.05 and s/r = 0.5-1.5; or s = 0, q/(p + q) = 0.1-1.0, r/(p + q + r) = 0.001-0.05, and n is about 100 to about 1000.
Claim 2
Dependent Claim
152 words
A thermosetting resin of the formula ##STR15## wherein: R 1 , R 2 and R 3 are independently selected from the group consisting of hydrogen and a methyl group, R 4 and R 5 are each an alkyl group having 1 to 3 carbon atoms, A is an alkylene group having 2 to 6 carbon atoms, X is selected from the group consisting of chlorine, bromine and iodine, Y is an anion selected from the group consisting of nitrate ion, chlorine ion, sulfate ion and phosphate ion, p, q, r and s are molar ratios of the recurring units arranged linearly and irregularly, and are the whole numbers which are q/(p + q) = 0.1-1.0, r/(p + q + r + s) = 0.001-0.05 and s/r = 0.5-1.5; or s = 0, q/(p + q) = 0.1-1.0, r/(p + q + r) = 0.001-0.05, and n is about 100 to about 1000.
Claim 3
Dependent Claim
46 words
The resin of claim 1 wherein p, q, r and s are molar ratios of the recurring units arranged linearly and irregularly, and are the whole numbers which are q/(p + q) = 0.1-1.0, r/(p + q + r + s) = 0.001-0.05, s/r = 0.5-1.5.
Claim 4
Dependent Claim
35 words
The resin of claim 2 wherein R 1 , R 2 and R 6 are each hydrogen, and R 3 , R 4 and R 5 are each a methyl group and X is chlorine.
Claim 5
Dependent Claim
35 words
The resin of claim 2 wherein R 1 and R 2 are each hydrogen, and R 3 , R 4 , R 5 and R 6 are each a methyl group and X is chlorine.
Claim 6
Dependent Claim
11 words
The resin of claim 3 wherein Y is a nitrate ion.
Claim 7
Dependent Claim
11 words
The resin of claim 4 wherein Y is a nitrate ion.
Claim 8
Dependent Claim
11 words
The resin of claim 3 wherein Y is a chlorine ion.
Claim 9
Dependent Claim
11 words
The resin of claim 4 wherein Y is a chlorine ion.
Claim 10
Dependent Claim
43 words
The resin of claim 1 wherein s = 0; p, q and r are molar ratios of the recurring units arranged linearly and irregularly, and are the whole numbers which are q/(p + q) = 0.1-1.0, r/(p + q + r) = 0.001-0.05.
Claim 11
Dependent Claim
32 words
The resin of claim 9 wherein R 1 and R 2 are each hydrogen, and R 3 , R 4 and R 5 are each a methyl group and X is chlorine.
Claim 12
Dependent Claim
11 words
The resin of claim 10 wherein Y is a nitrate ion.
Claim 13
Dependent Claim
11 words
The resin of claim 10 wherein Y is a chlorine ion.
References Cited (Backward Citations)
US3556932A
Cited
US3678098A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-10-23 | 1982-04-24 | 1982-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-23 | 1986-04-24 | 1986-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-23 | 1990-04-24 | 1990-10-24 | $7700.00 | Window Closed / Lapsed |