Abrasive article back up pad with foam layer

Details Abrasive article back up pad with foam layer Abrasive article back up pad with foam layer

1997-04-21

1999-10-05

Zirker, Daniel

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

4283175, 521174, C08G 1800

Patent

active

059621206

ABSTRACT:
An abrasive article back up pad having a resilient, open cell polyurethane foam formed as the reaction product of a polyether polyol and an aromatic polyisocyanate, such as an aromatic polyisocyanate including methylene diphenyl diisocyanate ("MDI"), and this foam is attached to the backside of an abrasive article.

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ASTM D 2240-91, pp. 400-403.

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