Complex microspheres, method of making same, and thermoplastic f

Details Complex microspheres, method of making same, and thermoplastic f Complex microspheres, method of making same, and thermoplastic f

1993-04-12

1994-03-22

Dean, Ralph H.

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

Synthetic resins

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

525100, 525104, 525106, 525446, 525431, 525479, 525 63, 428402, C08F28312

Patent

active

052965694

ABSTRACT:
Complex microspheres consist of polysiloxane and vinyl polymers which are unistructurally mixed together and substantially free of covalent bonds therebetween. Polysiloxane and vinyl polymer are contained at ratio of 97/3.about.30/70 by weight, the average diameter of the complex microspheres is 0.05.about.30 .mu.m, the standard deviation of their particle size is 1.0.about.2.5, and the ratio between their major and minor axes is 1.0.about.1.2. Thermoplastic films containing such complex microspheres at a specified rate have improved lubricity and anti-blocking properties.

REFERENCES:
patent: 4918132 (1990-04-01), Hongo et al.

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