Ternary polymer mixture and its use

Details Ternary polymer mixture and its use Ternary polymer mixture and its use

1994-03-24

1997-09-02

Morgan, Kriellion S.

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...

524487, 524504, 525 66, 525179, 525183, 2065243, C08K 504, C08K 509

Patent

active

056632290

ABSTRACT:
A polyamide-containing polymer mixture having a melt viscosity of 1,000 to 1,400 Pa.multidot.s (at 270.degree. C. and under a load of 122.6 N) and includes the following components:
(A) 50 to 75 parts by weight of polyamide 6, polyamide 6,6, polyamide 12 or mixtures thereof;
(B) 15 to 30 parts by weight of a polyolefin having a density of 0.921 to 0.96 g/cm.sup.3 onto which an unsaturated carboxylic acid or an unsaturated carboxylic acid derivative has been grafted, the degree of grafting being between 0.01 and 1 weight percent, with respect to the total weigh of grafted and ungrafted polyolefin;
(C) 10 to 20 parts by weight of a grafted polyolefin elastomer including at least ethylene and propylene units;
(D) Additives selected from the group including stabilizers, anti-friction agents and fillers,
with the sum of the parts by weight of components (A) to (D) being 100, and the mixture being produced by mixing components (A), (B) and (D) or (A), (B), (C) and (D) and extruding them at 150 to 300 rpm.
The invention further relates to a shaped object that can be produced by means of injection molding, extruding, coextruding, blow molding or reshaping with the use of said polymer mixture having components (A) through (D).

REFERENCES:
patent: 3373222 (1968-03-01), Armstrong
patent: 4346194 (1982-08-01), Roura
patent: 4410482 (1983-10-01), Subramanian
patent: 5162422 (1992-11-01), Lausberg et al.
European Search Report (Apr. 19, 1995).
Kirk-Othmer Encyclopedia of Chemical Technology, Fourth Edition, vol. 8, pp. 978-980.
Quhadi, T., et al. "Low gas permeable thermoplastic elastomers," Popular Plastics & Packaging, vol. 38, pp. 51-53 (1993).

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