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US3850862A Expired / Lapsed US ⏱️ 0.0 years remaining

Blends of a biodegradable thermoplastic dialkanoyl polymer and a naturally occurring biodegradable product

Assignee: Union Carbide Corp
•
Filing: 1972-07-28
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Granted: 1974-11-26
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Expires: 1992-07-28
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Abstract

Abstract 1. A BLEND COMPRISING (I) FROM ABOUT 5 TO ABOUT 95 WEIGHT PERCENT OF BIODEGRADABLE THERMOPLASTIC DIALKANOYL POLYMER, SAID POLYMER HAVING A REDUCED VISCOSITY VALUE OF AT LEAST 0.1 AND UPWARDS TO ABOUT 10 AND BEING FURTHER CHARACTERIZED IN THAT AT LEAST ABOUT 10 WEIGHT PERCENT OF SAID THERMOPLASTIC DIALKANOYL POLYMER IS ATTRIBUTABLE TO RECURRING UNITS OF THE FORMULA -(O-R''-OOC-R-CO)- WHEREIN R REPRESENTS A DIVALENT ALIPHATIC HYDROCARBON RADICAL, AND WHEREIN R'' IS OF THE GROUP CONSISTING OF DIVALENT ALIPHATIC HYDROCARBON RADICALS AND DIVALENT ALIPHATIC OXA-HYDROCARBON RADICALS, AND (II) FROM ABOUT 5 TO ABOUT 95 WEIGHT PERCENT OF NATURALLY OCCURING BIODEGRADABLE 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 2026-10-24 10:08
CPC Classifications
B; B65; B65D; B65D65/00; B65D65/38; B65D65/46; B65D65/466; C; C08; C08K; C08K5/00; C08K5/04; C08K5/15; C08L; C08L3/00; C08L3/02; C08L5/00; C08L67/00; C08L67/02; C08L89/00; C08L97/00; C08L97/02; Y; Y02; Y02W; Y02W90/00; Y02W90/10; Y10; Y10S; Y10S220/00; Y10S220/30; Y10S260/00; Y10S260/43

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 58 words
A BLEND COMPRISING (I) FROM ABOUT 5 TO ABOUT 95 WEIGHT PERCENT OF BIODEGRADABLE THERMOPLASTIC DIALKANOYL POLYMER, SAID POLYMER HAVING A REDUCED VISCOSITY VALUE OF AT LEAST 0.1 AND UPWARDS TO ABOUT 10 AND BEING FURTHER CHARACTERIZED IN THAT AT LEAST ABOUT 10 WEIGHT PERCENT OF SAID THERMOPLASTIC DIALKANOYL POLYMER IS ATTRIBUTABLE TO RECURRING UNITS OF THE FORMULA
Claim 2
Dependent Claim 58 words
A BLEND COMPRISING (I) FROM ABOUT 5 TO ABOUT 95 WEIGHT PERCENT OF BIODEGRADABLE THERMOPLASTIC DIALKANOYL POLYMER, SAID POLYMER HAVING A REDUCED VISCOSITY VALUE OF AT LEAST 0.1 AND UPWARDS TO ABOUT 10 AND BEING FURTHER CHARACTERIZED IN THAT AT LEAST ABOUT 10 WEIGHT PERCENT OF SAID THERMOPLASTIC DIALKANOYL POLYMER IS ATTRIBUTABLE TO RECURRING 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

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