Patent US3607803A successfully refreshed from Google Patents.
US3607803A
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Stable preparations of modified aminoplast precondensates,processes for their manufacture and use
Assignee: BASF Schweiz AG
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Filing: 1969-10-29
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Granted: 1971-09-21
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Expires: 1989-10-29
Abstract
Abstract Stable preparations of modified aminoplast precondensates are provided, which are prepared by reacting aminoplast precondensates containing alkyl-ether groups with basic polyamides. The polyamides are made from polymeric unsaturated acids and polyalkylene polyamines. The reaction is carried out in the presence of organic solvents at 20* to 100* C. Not later than after completion of the reaction, it is ensured that a sample of the reaction mixture has a pH-value of 2 to 8 after dilution with water. The resulting reaction products are soluble in water and are useful in the textile industry e.g. for rendering wool nonfelting. Especially suitable are the preparations when applied in combination with a dyeing process.
Inventors
- 👤 Rosemarie Toepel
- 👤 Heinz Abel
- 👤 Arthur Maeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:45
CPC Classifications
C; C08; C08G; C08G12/00; C08G12/46
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
32 words
A stable preparation according to claim 1, characterized in that an alkyl-ether of highly methylolated melamine, of which the alkyl radicals contain 1 to 4 carbon atoms are used as component (a).
Claim 2
Dependent Claim
31 words
A stable preparation according to claim 1, characterized in that an n-butyl-ether of highly methylolated melamine which contains 2 to 3 n-butyl radicals in the molecule are used as component (a).
Claim 3
Dependent Claim
21 words
A stable preparation according to claim 1, characterized in that an organic solvent which is infinitely miscible with water is used.
Claim 4
Dependent Claim
28 words
A stable preparation according to claim 1, characterized in that the pH-value of the reaction mixture is adjusted with aliphatic carboxylic acids having 1 to 3 carbon atoms.
Claim 5
Dependent Claim
22 words
A stable preparation according to claim 1, characterized in that the reaction mixture is adjusted to a pH-value of 2 to 7.
Claim 6
Dependent Claim
37 words
A stable preparation according to claim 1, characterized in that the modified aminoplast precondensate is obtained by reacting (a) hexamethylol melamine dibutyl- and tributyl-ether with (b) a condensation product of di- to trimerized linoleic acid and diethylene-triamine.
Claim 7
Dependent Claim
40 words
A stable preparation according to claim 1, characterized in that the modified aminoplast precondensate is obtained by reacting (a) hexamethylol melamine etherified with polyethylene glycol and n-butanol with (b) a condensation product of di- to trimerized linoleic acid and diethylenetriamine.
Claim 8
Dependent Claim
117 words
A process for the manufacture of a stable preparation of a water-soluble modified aminoplast precondensate which comprises reacting at a temperature of 20* to 100* C. a. at least one alkyl-ether of a methylolaminotriazine with b. at least one basic polyamide from dimerized to trimerized linoleic or linolenic acid and a polyamine of the formula H2N-(CH2-CH2-NH)n-CH2-CH2-NH2 in which n is a whole number of at most 3 in the presence of an organic solvent soluble in water or miscible with water and an easily volatile organic acid added not later than after completion of the reaction to ensure that a sample of the reaction mixture has a pH value of 2 to 8 after addition of water.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |