Patent US2983593A successfully refreshed from Google Patents.
US2983593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive compositions and products
Assignee: Saint Gobain Abrasives Inc
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Filing: 1959-03-02
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Granted: 1961-05-09
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Expires: 1979-03-02
Abstract
No abstract record available.
Inventors
- 👤 Bruce W Duke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:40
CPC Classifications
C; C09; C09J; C09J161/00; C09J161/20; C08; C08K; C08K5/00; C08K5/16; C08K5/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A COATED ABRASIVE COMPRISING: A FLEXIBLE BACKING MEMBER AND ABRASIVE GRAINS BONDED TO ONE SIDE OF SAID BACKING BY A MAKER AND SIZE COAT OF ADHESIVE, AT LEAST ONE OF SAID COATS BEING THE HEAT CURED CONDENSATION PRODUCT OF A COMPOSITION COMPRISING INITIALLY A MATERIAL SELECTED FROM THE GROUP CONSISTING OF UREA-FORMALDEHYDE PRE-CONDENSATES, MELAMINE-FORMALDEHYDE PRE-CONDENSATES, AND UREA-MELAMINE-FORMALDEHYDE PRE-CONDENSATES, AND A LATENT CURING SYSTEM CONSISTING ESSENTIALLY OF: AN AMINO COMPOUND HAVING AT LEAST ONE PRIMARY AMINO GROUP ATTACHED TO A TERTIARY CARBON ATON AND AN OXYGEN ATOM, SELECTED FROM THE GROUP CONSISTING OF HYDROXY OXYGENS AND ETHER OXYGENS, ATTACHED TO A CARBON ATOM ADJACENT SAID TERTIARY CARBON ATOM, AND AN AMMONIUM SALT OF AN ACID, SAID ACID HAVING A DISSOCIATION CONSTANT OF AT LEAST 1X10-4, SAID AMINE BEING PRESENT IN A QUANTITY SUFFICIENT TO RAISE THE PH OF THE COMPOSITION TO A VALUE OF FROM 6 TO 9 PRIOR TO CURE.
Claim 2
Dependent Claim
150 words
A COATED ABRASIVE COMPRISING: A FLEXIBLE BACKING MEMBER AND ABRASIVE GRAINS BONDED TO ONE SIDE OF SAID BACKING BY A MAKER AND SIZE COAT OF ADHESIVE, AT LEAST ONE OF SAID COATS BEING THE HEAT CURED CONDENSATION PRODUCT OF A COMPOSITION COMPRISING INITIALLY A MATERIAL SELECTED FROM THE GROUP CONSISTING OF UREA-FORMALDEHYDE PRE-CONDENSATES, MELAMINE-FORMALDEHYDE PRE-CONDENSATES, AND UREA-MELAMINE-FORMALDEHYDE PRE-CONDENSATES, AND A LATENT CURING SYSTEM CONSISTING ESSENTIALLY OF: AN AMINO COMPOUND HAVING AT LEAST ONE PRIMARY AMINO GROUP ATTACHED TO A TERTIARY CARBON ATON AND AN OXYGEN ATOM, SELECTED FROM THE GROUP CONSISTING OF HYDROXY OXYGENS AND ETHER OXYGENS, ATTACHED TO A CARBON ATOM ADJACENT SAID TERTIARY CARBON ATOM, AND AN AMMONIUM SALT OF AN ACID, SAID ACID HAVING A DISSOCIATION CONSTANT OF AT LEAST 1X10-4, SAID AMINE BEING PRESENT IN A QUANTITY SUFFICIENT TO RAISE THE PH OF THE COMPOSITION TO A VALUE OF FROM 6 TO 9 PRIOR TO CURE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |