Coated microspheres and their use

Details Coated microspheres and their use Coated microspheres and their use

2006-08-07

2010-02-09

Mulcahy, Peter D. (Department: 1796)

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C228S101000, C428S213000, C428S416000, C528S129000, C528S145000

Reexamination Certificate

active

07659327

ABSTRACT:
The invention relates to microspheres coated with a phenolic novolak resin, a process for preparing them, and their use in making foundry shapes, e.g. molds, cores, sleeves, pouring cups, etc., which are used in casting metal parts.

REFERENCES:
patent: 5182346 (1993-01-01), Gerber
patent: H06-145420 (1994-05-01), None
patent: WO 2004/050738 (2004-06-01), None
Machine translation of JP H06-145420 A.

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