Perlite filler

Details Perlite filler Perlite filler

1979-03-12

1981-03-10

Silverberg, Sam

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

252378P, C04B 3122, C04B 3126

Patent

active

042554896

ABSTRACT:
Expanded perlite is coated with polysiloxane, the coating dried, and subsequently strengthened by heating to form an attrition-resistant, non-porous, particulate filler suitable for inclusion in polymeric materials to reduce their bulk density.

REFERENCES:
patent: 2546474 (1949-05-01), Peyrot
patent: 2891923 (1959-06-01), Phreaner
patent: 3382170 (1968-05-01), Pape
patent: 3455732 (1969-07-01), Hathaway

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