Propylene-1-butene copolymer

Details Propylene-1-butene copolymer Propylene-1-butene copolymer

1997-11-14

2000-07-04

Lipman, Bernard

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526348, 526133, 526151, 526153, 526160, 502103, 502114, 525240, C08F 1008

Patent

active

06084048&

ABSTRACT:
A propylene-1-butene copolymer wherein a Shore A-scale hardness measured according to ASTM D2240 is not more than 70 and an intrinsic viscosity [.eta.] measured in axylene solvent at the temperature of 70.degree. C. is not less than 0.3 and which shows no crystalline melting peak and no crystallization peak in differential scanning calorimeter (DSC) mesurement.

REFERENCES:
patent: 2918457 (1959-12-01), Jezl
patent: 4168361 (1979-09-01), Oda et al.
patent: 5681913 (1997-10-01), Sustic
patent: 5700750 (1997-12-01), Tsutsui et al.
Elias, H.G, Macromolecules 1, Structure and Properties, Second Ed. (1988), Plenum Press, (New York).
Patent Abstracts of Japan, vol. 3, No. 109 (C-58), Sep. 12, 1979, JP 54-85293 A (Mitsui Sekiyu Kagaku Kogyo K. K.).

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