US2643235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive composition containing butadiene-styrene copolymer and a tack-producing resin
Assignee: Motors Liquidation Co
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Filing: 1950-04-26
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Granted: 1953-06-23
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Expires: 1970-04-26
Abstract
No abstract record available.
Inventors
- 👤 Stewart L Brams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:23
CPC Classifications
C; C09; C09J; C09J109/00; C09J109/06; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/04; C08L2666/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
AN ADHESIVE COMPOSITION, CONSISTING OF A SUITABLY FLUID, HIGHLY TACKY MIXTURE OF BUTADIENESTYRENE COPOLYMER 100 PARTS, SULPHUR AND ACCELERATOR IN SUBSTANTIALLY EQUAL PROPORTIONS 1 TO 20 PARTS, A TACK-PRODUCING RESIN TAKEN FROM THE CLASS CONSISTING OF WOOD ROSIN, HARDENED WOOD ROSIN AND COUMARONE INDENE RESIN AND MIXTURES THEREOF 150 TO 250 PARTS, TOGETHER WITH PIGMENTS AND SOFTENERS, ALL OF SAID INGREDIENTS BEING MIXED AT TEMPERATURES RANGING FROM 275* F. TO 325* F. FOR A TIME SUFFICIENT TO EFFECT A CURE OF THE RUBBERY COMPOUND IN SITU DURING THE MIXING OPERATION AND SUFFICIENT SOLVENT TO BRING THE CURED MIXTURE TO THE DESIRED FLUIDITY.
Claim 2
Dependent Claim
102 words
AN ADHESIVE COMPOSITION, CONSISTING OF A SUITABLY FLUID, HIGHLY TACKY MIXTURE OF BUTADIENESTYRENE COPOLYMER 100 PARTS, SULPHUR AND ACCELERATOR IN SUBSTANTIALLY EQUAL PROPORTIONS 1 TO 20 PARTS, A TACK-PRODUCING RESIN TAKEN FROM THE CLASS CONSISTING OF WOOD ROSIN, HARDENED WOOD ROSIN AND COUMARONE INDENE RESIN AND MIXTURES THEREOF 150 TO 250 PARTS, TOGETHER WITH PIGMENTS AND SOFTENERS, ALL OF SAID INGREDIENTS BEING MIXED AT TEMPERATURES RANGING FROM 275* F. TO 325* F. FOR A TIME SUFFICIENT TO EFFECT A CURE OF THE RUBBERY COMPOUND IN SITU DURING THE MIXING OPERATION AND SUFFICIENT SOLVENT TO BRING THE CURED MIXTURE TO THE DESIRED FLUIDITY.
References Cited (Backward Citations)
US2461954A
Cited
US2459891A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-22 | 1956-12-22 | 1957-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-22 | 1960-12-22 | 1961-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-22 | 1964-12-22 | 1965-06-23 | $7700.00 | Window Closed / Lapsed |