Coated abrasive bonded with urea-formaldehyde, phenolic resin bl

Abrasive tool making process – material – or composition – Impregnating or coating an abrasive tool

Patent

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Details

51298A, C08J 514

Patent

active

040380467

ABSTRACT:
Abrasive articles containing abrasive grits bonded to a support are made with a resinous bond consisting of urea formaldehyde prepolymer blended with a phenolic A-stage resin and finally cured under basic conditions.

REFERENCES:
patent: 3256077 (1966-06-01), Abler
patent: 3306864 (1967-02-01), Lang et al.
patent: 3619150 (1971-11-01), Rinker et al.
patent: 3852232 (1974-12-01), Bowman et al.

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