US2810707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molding compositions of alkenyl aromatic resins and copolymers of butadiene and a monovinyl aromatic hydrocarbon and method of making the same
Assignee: Dow Chemical Co
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Filing: 1954-01-27
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Granted: 1957-10-22
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Expires: 1974-01-27
Abstract
No abstract record available.
Inventors
- 👤 Floyd B Nagle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:25
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/17; C08L; C08L25/00; C08L25/02; C08L25/04; C08L25/08; C08L25/10; C08L9/00; C08L9/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A THERMOPLASTIC COMPOSITION COMPOSED OF A HEATPLASTIFIED AND MECHANICALY WORKED MIXTURE OF INGREDIENTS COMPRISING FROM 50 TO PERCENT BY WEIGHT OF A THERMOPLASTIC ALKENYL AROMATIC RESIN CONSISTING OF POLYMERIZED ALKENYL AROMATIC MONOMERIC MATTERIAL AT LEAST 70 PERCENT BY WEIGHT OF WHICH MONOMERIC MATERIAL CONSISTS OF AT LEAST ONE MONOVINYL AROMATIC COMPOUND, AND FROM 50 TO 20 PERCENT OF A SYNTHETIC RUBBERY POLYMER CONTAINING IN CHEMICALLY COMBINED FORM FROM 30 TO 70 PERCENT BY WEIGHT OF BUTADIENE AND FROM 70 TO 30 PERCENT OF A MONOVINYL AROMATIC HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF STYRENE AND VINY-TOLUENE, SAID COPOLYMER CONTAINING ETHYLENIC UNSATURATION, AND UNIFORMLY INCORPORATED WITH SAID INGREDIENTS, AS AN AGENT FOR STABILIZING THE COMPOSITION AGAINST DETERIORATING IN THE PRESENCE OF AIR AND LIGHT, FROM 0.5 TO 4 PERCENT BY WEIGHT OF A TETRAALKYLDIAMINO-2-PROPANOL HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
137 words
A THERMOPLASTIC COMPOSITION COMPOSED OF A HEATPLASTIFIED AND MECHANICALY WORKED MIXTURE OF INGREDIENTS COMPRISING FROM 50 TO PERCENT BY WEIGHT OF A THERMOPLASTIC ALKENYL AROMATIC RESIN CONSISTING OF POLYMERIZED ALKENYL AROMATIC MONOMERIC MATTERIAL AT LEAST 70 PERCENT BY WEIGHT OF WHICH MONOMERIC MATERIAL CONSISTS OF AT LEAST ONE MONOVINYL AROMATIC COMPOUND, AND FROM 50 TO 20 PERCENT OF A SYNTHETIC RUBBERY POLYMER CONTAINING IN CHEMICALLY COMBINED FORM FROM 30 TO 70 PERCENT BY WEIGHT OF BUTADIENE AND FROM 70 TO 30 PERCENT OF A MONOVINYL AROMATIC HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF STYRENE AND VINY-TOLUENE, SAID COPOLYMER CONTAINING ETHYLENIC UNSATURATION, AND UNIFORMLY INCORPORATED WITH SAID INGREDIENTS, AS AN AGENT FOR STABILIZING THE COMPOSITION AGAINST DETERIORATING IN THE PRESENCE OF AIR AND LIGHT, FROM 0.5 TO 4 PERCENT BY WEIGHT OF A TETRAALKYLDIAMINO-2-PROPANOL HAVING THE GENERAL FORMULA:
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) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |