US3709852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antistatic thermoplastic moulding compositions
Assignee: Hoechst AG
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Filing: 1971-03-09
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Granted: 1973-01-09
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Expires: 1991-03-09
Abstract
Abstract THEERMOPLASTIC MOULDING COMPOSITIONS FOT THE MAKING OF ANTISTATIC SHAPED ARTICLES ARE DISCLOSEED. COMPOUNDS OF THE FORMULA R1-P(=O)-R2(-R3) WHEREIN R1 IS AN ALKYL RADICAL OF 8 TO 24 CARBON ATOMS AND R2 AND R3 ARE ALLKYL RADICALS OF 1 TO 3 CARBON ATOMS HAVE PROVED TO BE ESPECIALLY EFFICIENT ANTISTATIC AGENTS, PARTICULARLY IN VIEW OF THEIR ADVANTAGEOUS TOXICOLOGICAL PROPERTIES AMD OF THE FACT THAT OTHER FAVOURABLE PROPERTIES OF HE PLASTIC MATERIALS, IN WHICH THEY ARE CONTAINED, ARE NOT ADVERSELY AFECTED.
Inventors
- 👤 Spankeren U Van
- 👤 W Gordon
- 👤 H Kleiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:35
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/53; C08K5/5397; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/16; Y10S524/00; Y10S524/91; Y10S524/912
Claims Analysis
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References Cited (Backward Citations)
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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) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |