US3014886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of improving the binder efficiency of a phenol-formaldehyde reaction product by addition thereto of an acrylamide polymer, and product obtained thereby
Assignee: Union Carbide Corp
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Filing: 1958-03-07
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Granted: 1961-12-26
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Expires: 1978-03-07
Abstract
No abstract record available.
Inventors
- 👤 Harding James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:59
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/58; D04H1/64; D04H1/587
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A HEAT-HARDENABLE COMPOSITION COMPRISING A WATERDILUTABLE, HEAT-HARDENABLE PHENOL-FORMALDEHYDE REACTION PRODUCT AND AN ACRYLAMIDE POLYMER SELECTED FROM THE GROUP CONSISTING OF HYDROLYZED ACRYLAMIDE HOMOPOLYMERS HAVING FROM ABOUT 0.5 TO ABOUT 40 PERCENT OF THE AMIDE GROUPS OF SAID HOMOPOLYMER REPLACED BY CARBONOXYL GROUPS, N-ALKYL SUBSTITUTED ACRYLAMIDE HOMOPOLYMERS, HYDROLYZED N-ALKYL SUBSTITUTED ACRYLAMIDE HOMOPOLYMERS CONTAINING AT LEAST ABOUT 60 PERCENT BY WEIGHT COMBINED N-ALKYL SUBSTITUTED ACRYLAMIDE, AND COPOLYMERS OF ACRYLAMIDE CONTAINING AT LEAST ABOUT 60 PERCENT BY WEIGHT COMBINED ACRYLAMIDE, AND UP TO 40 PERCENT BY WEIGHT OF A MONOETHYLENICALLY UNSATURATED COPOLYMERIZABLE MONOMER, SAID ACRYLAMIDE POLYMER BEING PRESENT IN AN AMOUNT OF FROM ABOUT 0.005 TO ABOUT 1 PERCENT BY WEIGHT BASED ON THE SOLIDS CONTENT OF THE PHENOL-FORMALDEHYDE REACTION PRODUCT.
Claim 2
Dependent Claim
118 words
A HEAT-HARDENABLE COMPOSITION COMPRISING A WATERDILUTABLE, HEAT-HARDENABLE PHENOL-FORMALDEHYDE REACTION PRODUCT AND AN ACRYLAMIDE POLYMER SELECTED FROM THE GROUP CONSISTING OF HYDROLYZED ACRYLAMIDE HOMOPOLYMERS HAVING FROM ABOUT 0.5 TO ABOUT 40 PERCENT OF THE AMIDE GROUPS OF SAID HOMOPOLYMER REPLACED BY CARBONOXYL GROUPS, N-ALKYL SUBSTITUTED ACRYLAMIDE HOMOPOLYMERS, HYDROLYZED N-ALKYL SUBSTITUTED ACRYLAMIDE HOMOPOLYMERS CONTAINING AT LEAST ABOUT 60 PERCENT BY WEIGHT COMBINED N-ALKYL SUBSTITUTED ACRYLAMIDE, AND COPOLYMERS OF ACRYLAMIDE CONTAINING AT LEAST ABOUT 60 PERCENT BY WEIGHT COMBINED ACRYLAMIDE, AND UP TO 40 PERCENT BY WEIGHT OF A MONOETHYLENICALLY UNSATURATED COPOLYMERIZABLE MONOMER, SAID ACRYLAMIDE POLYMER BEING PRESENT IN AN AMOUNT OF FROM ABOUT 0.005 TO ABOUT 1 PERCENT BY WEIGHT BASED ON THE SOLIDS CONTENT OF THE PHENOL-FORMALDEHYDE REACTION PRODUCT.
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) | 1964-12-25 | 1965-06-26 | 1965-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-25 | 1969-06-26 | 1969-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-25 | 1973-06-26 | 1973-12-26 | $7700.00 | Window Closed / Lapsed |