Masterbatch composition for thermoplastic resin modification and

Details Masterbatch composition for thermoplastic resin modification and Masterbatch composition for thermoplastic resin modification and

1990-03-27

1995-08-01

Michl, Paul R.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

523351, 524528, 525240, 264143, C08K 501, C08J 320

Patent

active

054380901

ABSTRACT:
A masterbatch composition for thermoplastic resin modification containing a polybutene and an ethylene-.alpha.-olefin copolymer obtained by copolymerizing ethylene with .alpha.-olefin in the presence of specific catalysts and characterized by specific properties, and a method for preparing the composition by kneading and extrusion at a temperature ranging from the maximum peak temperature (Tm) to (Tm-45).degree. C. in accordance with differential scanning calorimetry of the copolymer are disclosed.
Masterbatch pellets for thermoplastic resin modification having low surface tackiness can be obtained from the composition.

REFERENCES:
patent: 3694524 (1972-09-01), Tinger et al.
patent: 4166057 (1979-08-01), Takemori
patent: 4657982 (1987-04-01), Breck et al.
patent: 4786678 (1988-11-01), Dobreski et al.
patent: 4929680 (1990-05-01), Matsubara et al.

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