US3840486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-soluble,thermosettable resinous compositions prepared from dicyandiamide,hcho,ammonium salt and a salt of an aminopolyamide and method for preparing the same
Assignee: Hercules LLC
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Filing: 1972-07-03
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Granted: 1974-10-08
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Expires: 1992-07-03
Abstract
Abstract 1. A WATER-SOLUBLE THERMOSETTING RESINOUS COMPOUND CONSISTING ESSENTIALLY OF THE HEAT REACTION PRODUCT OF (1) ONE MOLE OOF DICYANDIAMIDE, (2) FROM ABOUT 2 MOLES TO ABOUT 5.25 MOLES OF FORMALDEHYDE, (3) AN ACID SALT OF A WATER-SOLUBLE AMINOPOLYMIDE IN AN AMOUNT TO PROVIDE FROM ABOUT .125 TO 05 EQUIVALENT OF BASIC NITROGEN, AND (4) AN AMOUNT SALT IN AN AMOUNT TO PROVIDE A TOTAL OF FROM ABOUT 0.8 EQUIVALENT TO ABOUT 1.2 EQUIVALENTS OF BASIC NITROGEN, A 50-60% SOLIDS AQUEOUS SOLUTION OF THE RESINOUS COMPOSITION HAVING A VISCOSITY OF FROM ABOUT G-X ON THE GARDNER-HOLDT SCALE.
Inventors
- 👤 D Dumas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:38
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/46; D21H17/47; D21H17/49; D21H17/50; C; C08; C08G; C08G12/00; C08G12/02; C08G12/04; C08G12/10; C08G12/14; C08G12/16; C08G12/46; D21H17/54; D21H17/55
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A WATER-SOLUBLE THERMOSETTING RESINOUS COMPOUND CONSISTING ESSENTIALLY OF THE HEAT REACTION PRODUCT OF (1) ONE MOLE OOF DICYANDIAMIDE, (2) FROM ABOUT 2 MOLES TO ABOUT 5.25 MOLES OF FORMALDEHYDE, (3) AN ACID SALT OF A WATER-SOLUBLE AMINOPOLYMIDE IN AN AMOUNT TO PROVIDE FROM ABOUT .125 TO 05 EQUIVALENT OF BASIC NITROGEN, AND (4) AN AMOUNT SALT IN AN AMOUNT TO PROVIDE A TOTAL OF FROM ABOUT 0.8 EQUIVALENT TO ABOUT 1.2 EQUIVALENTS OF BASIC NITROGEN, A 50-60% SOLIDS AQUEOUS SOLUTION OF THE RESINOUS COMPOSITION HAVING A VISCOSITY OF FROM ABOUT G-X ON THE GARDNER-HOLDT SCALE.
Claim 2
Dependent Claim
95 words
A WATER-SOLUBLE THERMOSETTING RESINOUS COMPOUND CONSISTING ESSENTIALLY OF THE HEAT REACTION PRODUCT OF (1) ONE MOLE OOF DICYANDIAMIDE, (2) FROM ABOUT 2 MOLES TO ABOUT 5.25 MOLES OF FORMALDEHYDE, (3) AN ACID SALT OF A WATER-SOLUBLE AMINOPOLYMIDE IN AN AMOUNT TO PROVIDE FROM ABOUT .125 TO 05 EQUIVALENT OF BASIC NITROGEN, AND (4) AN AMOUNT SALT IN AN AMOUNT TO PROVIDE A TOTAL OF FROM ABOUT 0.8 EQUIVALENT TO ABOUT 1.2 EQUIVALENTS OF BASIC NITROGEN, A 50-60% SOLIDS AQUEOUS SOLUTION OF THE RESINOUS COMPOSITION HAVING A VISCOSITY OF FROM ABOUT G-X ON THE GARDNER-HOLDT SCALE.
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) | 1977-10-07 | 1978-04-08 | 1978-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-07 | 1982-04-08 | 1982-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-07 | 1986-04-08 | 1986-10-08 | $7700.00 | Window Closed / Lapsed |