Foam composition roller brush with embedded mandrel

Details Foam composition roller brush with embedded mandrel Foam composition roller brush with embedded mandrel

2011-06-07

2011-06-07

Chang, Victor S (Department: 1788)

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

C428S315500, C428S315700, C015S097100, C015S103500, C015S244100, C015S244400

Reexamination Certificate

active

07955693

ABSTRACT:
The invention is directed toward a chemical mechanical polishing/planarizing (CMP) brush with an embedded mandrel. PVA foam injected into the substantially hollow mandrel expands through apertures in the mandrel to fill a mold in the desired shape of the brush with the foam in the mandrel being integral with the outer foam covering the brush.

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patent: 2004/0151890 (2004-08-01), Drury
patent: 2006/0276108 (2006-12-01), Benson

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