Propylene and ethylene/.alpha.-olefin copolymer combinations app

Details Propylene and ethylene/.alpha.-olefin copolymer combinations app Propylene and ethylene/.alpha.-olefin copolymer combinations app

1983-06-30

1986-01-07

Seccuro, Carman J.

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

Synthetic resins

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

C08J 500, C08L 2312, C08L 2320, C08L 2308

Patent

active

045635048

ABSTRACT:
A combination of at least one propylene polymer and at least one ethylene/.alpha.-olefin copolymer wherein the combination comprises: (a) 10 to 40 weight percent isotactic polypropylene; and (b) 60 to 90 weight percent ethylene/.alpha.-olefin copolymer, wherein said .alpha.-olefin has at least 4 carbon atoms, and wherein said copolymer has a density between 0.905 and 0.940 g/cm.sup.3 and a melt index between 0.2 and 3 dg/min. Application to the manufacture of mono-oriented yarns.

REFERENCES:
patent: 3254139 (1966-05-01), Anderson et al.
patent: 3328486 (1967-06-01), Croom et al.
patent: 3358053 (1967-12-01), Hostetler
patent: 3426105 (1969-02-01), Christensen
patent: 3819769 (1974-06-01), Pirot
patent: 4205021 (1980-05-01), Morita et al.
patent: 4277578 (1981-07-01), Yoshimura et al.
patent: 4302557 (1981-11-01), Yoshimura et al.
patent: 4336350 (1982-06-01), Yoshimura et al.

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