US3850863A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blends of a biodegradable thermoplastic oxyalkanoyl polymer and a naturally occurring biodegradable product
Assignee: Union Carbide Corp
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Filing: 1972-07-28
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Granted: 1974-11-26
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Expires: 1992-07-28
Abstract
Abstract 1. A BLEND COMPRISING (I) FROM ABOUT 3 TO ABOUT 97 WEIGHT PERCENT OF BIODEGRADABLE THERMOPLASTIC OXYALKANOYL POLYMER, SAID POLYMER HAVING A REDUCED VISCOSITY VALUE OF AT LEAST ABOUT 0.1 AND UPWARDS TO ABOUT 12 AND BEING FURTER CHARACTERIZED IN THAT AT LEAST ABOUT 10 WEIGHT PERCENT OF SAID THERMOPLASTIC OXYALKANOYL POLYMER IS ATTRIBUTABLE TO RECURRING OXYALKANOYL UNITS OF THE FORMULA -O-(CH2)X-CO- WHEREIN X IS AN INTEGER HAVING A VALUE OF 2 TO 7, WITH THE PROVISO THAT X DOES NOT EQUAL 3; AND (II) FROM ABOUT 97 TO ABOUT 3 WEIGHT PERCENT OF NATURALLY OCCURRING BIODEGRADABEL PRODUCT, BASED ON THE TOTAL WEIGHT OF SAID BLEND.
Inventors
- 👤 W Niegisch
- 👤 R Clendinning
- 👤 J Potts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:42
CPC Classifications
A; A01; A01G; A01G13/00; A01G13/30; A01G13/32; A01G13/33; C; C08; C08K; C08K5/00; C08K5/04; C08K5/15; C08L; C08L3/00; C08L3/02; C08L5/00; C08L67/00; C08L67/04; C08L89/00; C08L97/00; C08L97/02; C09; C09K; C09K17/00; C09K17/52; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/28; Y10; Y10S; Y10S220/00; Y10S220/30; Y10S260/00; Y10S260/43
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A BLEND COMPRISING (I) FROM ABOUT 3 TO ABOUT 97 WEIGHT PERCENT OF BIODEGRADABLE THERMOPLASTIC OXYALKANOYL POLYMER, SAID POLYMER HAVING A REDUCED VISCOSITY VALUE OF AT LEAST ABOUT 0.1 AND UPWARDS TO ABOUT 12 AND BEING FURTER CHARACTERIZED IN THAT AT LEAST ABOUT 10 WEIGHT PERCENT OF SAID THERMOPLASTIC OXYALKANOYL POLYMER IS ATTRIBUTABLE TO RECURRING OXYALKANOYL UNITS OF THE FORMULA
Claim 2
Dependent Claim
60 words
A BLEND COMPRISING (I) FROM ABOUT 3 TO ABOUT 97 WEIGHT PERCENT OF BIODEGRADABLE THERMOPLASTIC OXYALKANOYL POLYMER, SAID POLYMER HAVING A REDUCED VISCOSITY VALUE OF AT LEAST ABOUT 0.1 AND UPWARDS TO ABOUT 12 AND BEING FURTER CHARACTERIZED IN THAT AT LEAST ABOUT 10 WEIGHT PERCENT OF SAID THERMOPLASTIC OXYALKANOYL POLYMER IS ATTRIBUTABLE TO RECURRING OXYALKANOYL UNITS OF THE FORMULA
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) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |