Process for improving the mutual compatibility of polymers

Details Process for improving the mutual compatibility of polymers Process for improving the mutual compatibility of polymers

1996-03-20

1997-12-09

Szekely, Peter A.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

10620501, 1062061, 524 47, 536103, C08L 516, C08L 302

Patent

active

056961863

ABSTRACT:
A process for improving the mutual compatibility of natural and/or synthetic polymers by the use of cyclodextrin in the polymer mixture, wherein the cyclodextrin represents in particular from about 0.5% to about 20% by weight of the polymer mixture, wherein the polymer mixture includes a starch, in particular a plasticized starch and a synthetic polymer selected in the group consisting of a polyethylene, a polypropylene, a polystyrene, a polyvinyl chloride, a polyvinyl alcohol, and a poly(.epsilon.-caprolactone), wherein the cyclodextrin is provided in the form of a composition containing one of the constituent polymers of the mixture (for example starch), a plasticizer (for example a polyol), a nucleation agent and/or a standard compatibilizing agent.

REFERENCES:
patent: 4356115 (1982-10-01), Shibanai et al.
patent: 5234978 (1993-08-01), Delrue et al.
M. Xanthos, "Polymer Engineering and Science" mid-Nov. 1988, vol. 28, No.21, pp. 1392-1400. JP-A-03 100065 (Toppan Printing Co Ltd) Apr. 25, 1991 Abstract.
A. Harada et al., "Proc. Japan Acad., 69, Ser. B (1993)" pp. 39-44.

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