Additive-charged porous carrier material

Details Additive-charged porous carrier material Additive-charged porous carrier material

1994-12-05

1996-03-05

Seidleck, James J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 65, 521 81, 521 94, 521 97, 521130, 521165, 521177, 521183, 521184, 521191, C08J 900

Patent

active

054968658

ABSTRACT:
The pourable porous carrier material is produced from at least one thermoplastic basic polymer with additives incorporated in the porous structure.
First suitable foaming agents are added to the basic polymer, the mass is melted, mixed before and/or after melting. The mixture is then preferably extruded and cooled to form a pourable porous carrier material.
At least one additive is added to the porous carrier material and mixed with this at a temperature (T.sub.M) below the melting point of the basic polymer but above the melting point of the additive.
The porous carrier material has preferably ellipsoid pores which are brought into their longitudinal form during extrusion.

REFERENCES:
patent: 4588754 (1986-05-01), Liu
patent: 4783511 (1988-11-01), Schmid
Chemical Abstracts, vol. 81, No. 14, Oct. 7, 1974, K. Tashio et al. for Dispersible Colored Porous Master Batch for Abstract No. 78823n.

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