US3796677A
Expired / Lapsed
US
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Incorporating rubber into thermoplastics
Assignee: BASF SE
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Filing: 1971-07-26
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Granted: 1974-03-12
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Expires: 1991-07-26
Abstract
Abstract A PROCESS FOR INCORPORATING MOIST RUBBER INTO THERMOPLASTICS. RUBBER LATEX IS FIRST CONGULATED, AND THE RUBBER IS FREED FROM THE MAJOR PORTION OF THE WATER AND THEN MIXED WITH THE MOLTEN THERMOPLASTIC. THE RESULTING IMPACT RESISTANT MODIFIED THERMOPLASTICS ARE DISTINGUISHED BY HIGH GLOSS AND IMPROVED DIMENSIONAL STABILITY UNDER HEAT.
Inventors
- 👤 H Mosthaf
- 👤 J Schwaab
- 👤 G Jeckel
- 👤 W Laber
- 👤 A Gottschalk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:51
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/005; B; B29; B29B; B29B7/00; B29B7/002; B29B7/007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-11 | 1977-09-10 | 1978-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-11 | 1981-09-10 | 1982-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-11 | 1985-09-10 | 1986-03-12 | $7700.00 | Window Closed / Lapsed |