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US3632687A Expired / Lapsed US ⏱️ 0.0 years remaining

Crystalline polymer alloys comprising a polymer from a cyclic ester and an alkene polymer

Assignee: Union Carbide Corp
•
Filing: 1969-04-01
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Granted: 1972-01-04
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Expires: 1989-04-01
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Abstract

Abstract CONSISTING OF HYDROGEN, ALKYL, HALO, AND ALKOXY; A IS THE OXY GROUP; X IS AN INTEGER FROM 1 TO 4; Y IS AN INTEGER FROM 1 TO 4; Z IS AN INTEGER OF ZERO OR ONE; WITH THE PROVISOS THAT (A) THE SUM OF X+Y+Z IS AT LEAST 4 AND NOT GREATER THAN 7, AND (B) THE TOTAL NUMBER OF R VARIABLES WHICH ARE SUBSTITUENTS OTHER THAN HYDROGEN DOES NOT EXCEED 3, WITH OR WITHOUT RECURRING UNITS OF THE FORMULA -(O-CH(-R'')-CH(-R''))WHEREIN EACH R'' IS SELECTED FROM THE CLASS CONSISTING OF, INDIVIDUALLY, HYDROGEN, ALKYL, CYCLOALKYL, ARYL AND CHLORALKYL, AND, TOGETHER WITH THE ETHYLENE MOIETY OF THE OXYETHYLENE CHAIN OF UNIT II, A SATURATED CYCLOALIPHATIC HYDROCARBON RING HAVING FROM 4 TO 8 CARBON ATOMS. THESE NOVEL CRYSTALLINE BLENDS ARE USEFUL IN THE PRODUCTION OF FIBERS, FILMS, WIRE AND CABLE COATING, MOLDING MATERIALS AND THE LIKE, HAVING UNIQUE PROPERTIES SUCH AS, DYEABILITY, STRESS CRACK RESISTANCE, LOW HAZE, HIGH GLOSS AND/OR HIGH LIGHT TRANSMISSION. -(O-(C(-R)2)X-(A)Z-(C(-R)2)Y-CO)- CRYSTALLINE POLYMER BLENDS CONTAINING CRYSTALLINE ALKENE POLYMERS AND CRYSTALLINE CYCLIC ESTER POLYMERS CONTAINING RECURRING UNITS OF THE FORMULA

Inventors

  • 👤 Earl Richard Walter
  • 👤 Joseph Victor Koleske

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 10:26
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08L67/00; C08L67/04; C08L2207/00; C08L2207/06; C08L2207/066

Claims Analysis

Total Claims: 0
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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) 1975-01-03 1975-07-05 1976-01-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-01-03 1979-07-05 1980-01-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-01-03 1983-07-05 1984-01-04 $7700.00 Window Closed / Lapsed

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