Abrasive tool making process – material – or composition – With synthetic resin
Patent
1979-11-01
1982-05-25
Czaja, Donald E.
Abrasive tool making process, material, or composition
With synthetic resin
51296, 51400, 428238, C09K 314
Patent
active
043314538
ABSTRACT:
Delamination-resistant abrasive belts and discs suitable for offhand and automated article finishing comprise a lofty, non-woven, three-dimensional abrasive web adhesively bonded to a stretch-resistant woven fabric with a polyurethane binder comprising the reaction product of poly-1,4 oxybutylene) glycol diisocyanate having a molecular weight of about 500-4000 and a reactive compound capable of reacting with the isocyanate radicals. The reactive compound is selected from a group consisting of water, diol, triol, diamine or mixtures thereof.
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Saunders, J. H. & Frisch, K. C., Polyurethanes Chemistry and Technology, Part II, vol. XVI, 1964.
Dau Donald E.
Nelson Leonard E.
Alexander Cruzan
Czaja Donald E.
Francis Richard
Minnesota Mining and Manufacturing Company
Sell Donald M.
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