Polyoxymethylene compositions containing at least one encapsulat

Details Polyoxymethylene compositions containing at least one encapsulat Polyoxymethylene compositions containing at least one encapsulat

1992-04-09

1994-03-29

Michl, Paul R.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523200, 523207, 524377, 524404, 524425, 524451, 524492, C08K 910

Patent

active

052985377

ABSTRACT:
Incorporation of an encapsulated nucleant made from an encapsulant polymer and a nucleant, wherein the encapsulant polymer is selected from linear low density polyethylene, high density polyethylene, and polypropylene, into polyoxymethylene compositions results in a decrease in the center line porosity of polyoxymethylene extruded stock shape parts, without also reducing the rate of extrusion. The compositions are especially useful for extrusion into stock shape parts, such as rod, slab, sheet, and tube stock, which are used for machined parts (like artificial limbs and complex gears), die cut parts (like washers and gaskets), and control cable inners.

REFERENCES:
patent: 3085989 (1963-04-01), Jordan
patent: 3179637 (1965-04-01), Brodt et al.
patent: 3704275 (1972-11-01), Burg et al.
patent: 3795715 (1974-03-01), Cherdron et al.
patent: 4670508 (1987-06-01), Ohdaira et al.

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