Polyolefinic resin and a resin composition comprising said resin

Details Polyolefinic resin and a resin composition comprising said resin Polyolefinic resin and a resin composition comprising said resin

1998-04-20

1999-11-16

Wu, David W.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525247, 525323, C08L 2312, C08L 2314

Patent

active

059860073

ABSTRACT:
A propylenic resin which is a homopolymer of propylene or a copolymer of propylene, has (i) intrinsic viscosity [.eta.] measured in decaline at the temperature of 135.degree. C. in the range of 0.5 to 10 deciliter/g and (ii) content of insoluble fraction in boiling n-heptane (W) in the range of 10 to 99 weight % and shows (iii) relation between relaxation time of rubber component measured by pulse NMR at the temperature of 30.degree. C. [T.sub.2H.sup.R (30): .mu.s], relaxation time of rubber component measured by pulse NMR at the temperature of 80.degree. C. [T.sub.2H.sup.R (80): .mu.s] and the content of insoluble fraction in boiling n-heptane (W) satisfying the following equations:

REFERENCES:
patent: 4329256 (1982-05-01), Rust et al.
patent: 4946898 (1990-08-01), Kasahara et al.
patent: 5322902 (1994-06-01), Schreck et al.
patent: 5556820 (1996-09-01), Funabashi et al.

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