Flake- or sliver-like porous structure of polymeric material and

Details Flake- or sliver-like porous structure of polymeric material and Flake- or sliver-like porous structure of polymeric material and

1975-09-02

1979-03-27

Anderson, Philip

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

Synthetic resins

Cellular products or processes of preparing a cellular...

264 453, 264 53, 264DIG5, 264DIG17, 521 80, 521 55, 521143, B29D 2700

Patent

active

041465105

ABSTRACT:
Flake- or sliver-like porous structures of a polymeric material heavily loaded with a finely divided inorganic substance are prepared by spurting a mixture of the polymeric and finely divided inorganic components in a solvent. The products have many fine, irregular voids. The thickness of walls forming such voids is 5.mu. or less. The products are especially useful for producing sheet-like structures therefrom by beating and/or refining them followed by general paper making procedures. The sheets, when calendered, have a high initial modulus and improved dimensional stability.

REFERENCES:
patent: 2810646 (1957-10-01), Wooding
patent: 3003304 (1961-10-01), Rasmussen
patent: 3210239 (1965-10-01), Eberl
patent: 3785919 (1974-01-01), Hickman
patent: 3884030 (1975-05-01), Baxter et al.
patent: 3911070 (1975-10-01), Lundsager
patent: 3912665 (1975-10-01), Spitzer et al.
patent: 3912666 (1975-10-01), Spitzer et al.
patent: 3931762 (1976-01-01), Fukushima et al.
patent: 4049593 (1977-09-01), Sato et al.

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