US3894993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aminoplast crosslinking agents
Assignee: Wyeth Holdings LLC
•
Filing: 1973-11-21
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Granted: 1975-07-15
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Expires: 1993-11-21
Abstract
Abstract This disclosure relates to certain cross-linking agents comprising condensation products prepared by heat reacting certain substantially water-insoluble, substantially fully etherified, substantially full methylolated guanamines, or substantially fully etherified, substantially fully methylolated melamine compounds with certain alkylated phenolic compounds.
Inventors
- 👤 Werner Josef Blank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:36
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/44; C09D5/4419; C09D5/4469; C08; C08G; C08G14/00; C08G14/02; C08G14/04; C08G14/06; C08G16/00; C08G16/02; C08G16/0212; C08G16/0218; C08G16/0225; C08L; C08L101/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
61 words
THE COMPOSITION OF MATTER COMPRISING THE RESINOUS PRODUCT PREPARED BY REACTING AT A TEMPERATURE OF AT LEAST 100*C IN ANS ACIDIC MEDIUM FROM ABOUT 90 TO ABOUT 30% OF A SUBSTANTIALLY WATER-INSOLUBLE, SUBSTANTIALLY FULLY ETHERIFIED, SUBSTANTIALLY FULLY METHYLOLATED GUANAMINE OR SUBSTANTIALLY FULLY ETHERIFIED, SUBSTANTIALLY FULLY METHYLOLATED MELAMINE AND FROM ABOUT 10 TO ABOUT 70% OF ALKYLATED PHENOLIC COMPOUND HAVING THE FORMULA:
Claim 2
Dependent Claim
61 words
THE COMPOSITION OF MATTER COMPRISING THE RESINOUS PRODUCT PREPARED BY REACTING AT A TEMPERATURE OF AT LEAST 100*C IN ANS ACIDIC MEDIUM FROM ABOUT 90 TO ABOUT 30% OF A SUBSTANTIALLY WATER-INSOLUBLE, SUBSTANTIALLY FULLY ETHERIFIED, SUBSTANTIALLY FULLY METHYLOLATED GUANAMINE OR SUBSTANTIALLY FULLY ETHERIFIED, SUBSTANTIALLY FULLY METHYLOLATED MELAMINE AND FROM ABOUT 10 TO ABOUT 70% OF ALKYLATED PHENOLIC COMPOUND HAVING THE FORMULA:
Claim 3
Dependent Claim
23 words
The composition according to claim 1 wherein the fully etherified tetramethylol guanamine is di(methoxymethyl) di-(ethoxymethyl) benzoguanamine and the alkylated phenol is 2-(nonylphenoxy) ethanol.
Claim 4
Dependent Claim
22 words
The composition according to claim 1 wherein the fully etherified hexamethylol melamine is hexa(butoxymethyl) melamine and the alkylated phenol is 2-(nonylphenoxy) ethanol.
References Cited (Backward Citations)
US3087837A
Cited
US3635867A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-14 | 1979-01-13 | 1979-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-14 | 1983-01-13 | 1983-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-14 | 1987-01-13 | 1987-07-15 | $7700.00 | Window Closed / Lapsed |