Anti-static styrene polymer particles by impregnation

Details Anti-static styrene polymer particles by impregnation Anti-static styrene polymer particles by impregnation

1985-10-25

1987-07-21

Foelak, Morton

Coating processes

Particles, flakes, or granules coated or encapsulated

Resin base

428407, 521 56, 521 57, 521 60, B05D 700, C12P 3314

Patent

active

046817794

ABSTRACT:
Expandable styrene polymer particles which have anti-static and anti-lumping properties during expansion are produced by adding 0.1 to 0.4 parts of alkyl and alkylaryl ethers of polyethoxyethanol mono- and diesters of phosphoric acid per 100 parts of polymer particles during impregnation of the polymer particles with blowing agents. The esters may be added as sole antistatic agent or in addition to the known internal additives which impart fast-cool and antilump properties.

REFERENCES:
patent: 2989782 (1961-06-01), Berkhuff, Jr. et al.
patent: 3236681 (1966-02-01), Nemphos et al.
patent: 3520833 (1970-07-01), Wright
patent: 3553112 (1971-01-01), Weinstein et al.
patent: 3826765 (1974-07-01), Altares, Jr.
patent: 3879345 (1975-04-01), Furukawa et al.

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