US3315035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparent mixed epoxy resin composition and safety laminated articles made therefrom
Assignee: Dow Chemical Co
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Filing: 1961-03-29
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Granted: 1967-04-18
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Expires: 1981-03-29
Abstract
No abstract record available.
Inventors
- 👤 Douglas D Applegath
- 👤 Walter A Henson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:30
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/86; H01J29/87; B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/1055; B32B17/10733; H01J2229/00; H01J2229/87; H01J2229/875; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31518
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
A SAFETY CATHODE RAY TUBE COMPRISING A CATHODE RAY TUBE HAVING A VIEWING SURFACE, A TRANSPARENT, GENERALLY SIMILAR, CONTOURED PLATE SPACED APART FROM SAID VIEWING SURFACE AND HAVING SAID VIEWING SURFACE ADHERED TO SAID PLATE BY A TRANSPARENT SOLID FLEXIBLE SLASTOMERIC COMPOSITION CONSISTING ESSENTIALLY OF THE CUREED REACTION PRODUCT OF: (A) A FIRST TRANSPARENT POLYGLYCIDYL ETHER; (B) A SECOND TRANSPARENT POLYGLYCIDYL ETHER, AND A COMPATIBLE HARDENING AGENT; SAID FIRST GLYCIDYL ETHER BEING A DIGLYCIDYL ETHER OF 4,4''-ISOPROPYLIDENEDIPHENOL, SAID ETHER HAVING A MOLECULAR WEIGHT OF FROM ABOUT 900 TO 1200; SAID SECOND DIGLYCIDYL ETHER BEING A DIGLYCIDYL ETHER OF POLYOXYPROPYLENE GLYCOL, SAID GLYCOL HAVING A MOLECULAR WEIGHT OF ABOUT 400; SAID HARDENING AGENT BEING A MIXTURE OF ABOUT 5.5 PARTS BY WEIGHT OF MONOETHANOLAMINE AND ABOUT 1 PART BY WEIGHT OF DIETHYLENETRIAMINE; THE INGREDIENTS (A) AND (B) BEING EMPLOYED IN AN AMOUNT BY WEIGHT OF ABOUT 33 PARTS OF (A) AND ABOUT 67 PARTS OF (B) AND SAID HARDENING AGENT BEING EMPLOYED IN AN AMOUNT OF ABOUT 6.5 PARTS.
Claim 2
Dependent Claim
194 words
THE LIQUID HOMOGENEOUS RESINOUS COMPOSITION CURABLE ON STANDING TO AN ELASTOMERIC THERMOSET RESIN WHICH, WHEN SET, IS CAPABLE OF TRANSMITTING AT LEAST 80 PERCENT OF LIGHT WITHIN THE VISIBLE SPECTRUM INCIDENT THERETO WITHOUT ADVERSE EFFECT ON THE COLOR OR IMAGE PRODUCED BY THE LIGHT TRANSMITTED THERETHROUGH WHEN SAID RESIN IS IN A LAYER THAT HAS A THICKNESS NOT SUBSTANTIALLY GREATER THAN 0.1 INCH, WHICH IS CAPABLE OF FORMING COHESIVE BONDS OF HIGH STRENGTH WITH GLASS IN CONTACT THEREWITH DURING CURE, WHICH POSSESSES HIGH THERMAL STABILITY, WHICH HAS AN ELASTIC RECOVERY OF AT LEAST ABOUT 80 PERCENT, AND WHICH BETTER WITHSTANDS SUDDEN SHOCK AND PRESSURE CHANGES WITHOUT DAMAGE, SAID RESINOUS COMPOSITION CONSISTING ESSENTIALLY OF A MIXTURE OF BETWEEN ABOUT 25 AND ABOUT 40 PARTS BY WEIGHT OF COMPONENT (A) WHICH IS AN AROMATIC POLYEPOXIDE ETHER OF A POLYNUCLEAR POLYHYDRIC PHENOL AND BETWEEN ABOUT 75 AND ABOUT 60 PARTS BY WEIGHT OF COMPONENT (B) WHICH IS AN ALIPHATIC POLYEPOXIDE ETHER OF A DIHYDRIC ALIPHATIC COMPOUND, TO MAKE 100 PARTS OF (A) AND (B), AND A HARDENING AGENT CONSISTING BY WEIGHT OF (1) BETWEEN ABOUT 78 AND ABOUT 92 PERCENT OF A MONOALKANOLAMINE HAVING THE GENERIC FORMULA
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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) | 1970-04-17 | 1970-10-17 | 1971-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-17 | 1974-10-17 | 1975-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-17 | 1978-10-17 | 1979-04-18 | $7700.00 | Window Closed / Lapsed |