초록 ▼

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) g

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.

대표청구항 ▼

An abrasive article especially suited for offhand and automated article finishing having a lofty, non-woven, three-dimensional abrasive layer adhesively bonded to a stretch-resistant woven fabric, wherein the improvement comprises utilizing as said adhesive binder a polyurethane binder comprising th

An abrasive article especially suited for offhand and automated article finishing having a lofty, non-woven, three-dimensional abrasive layer adhesively bonded to a stretch-resistant woven fabric, wherein the improvement comprises utilizing as said adhesive binder a polyurethane binder comprising the reaction product of poly(1,4-oxybutylene)glycol diisocyanate having a molecular weight of about 500 to 4000 and a reactive compound having at least one active hydrogen atom capable of reacting with the isocyanate groups wherein said reactive compound is selected from the group consisting of water, diol, triol, primary diamine and mixtures thereof.