Patent ID: 6638882
Filing Date: 2003-10-28
Classification: C03C,C08G,C08J,C09J,Y10T

Abstract:
In a process for manufacturing a molded fiber glass composition formed by heating and compressing a fiber glass blanket prepared by first forming a catalyzed aqueous binder composition comprising a resole resin and a catalyst, coating glass fibers with an amount of said binder composition, and collecting said coated glass fibers as a non-woven fiber glass blanket having about 3 to about 25% by weight resin binder on a solids basis, the improvement in said process for producing a molded fiber glass composition having enhanced thermal stability without loss of structural strength or flexibility, said improved process further comprising the steps ofpreparing the resole resin binder composition to include about 2 to about 10 parts per hundred on a solids basis a catalyst comprising a salt formed from ammonia and an aryl sulfonic acid, and reducing the amount of resin binder composition used to coat the glass fibers forming the fiber glass blanket.