Molding phenolic resin material for pulley, and method of...

Details Molding phenolic resin material for pulley, and method of... Molding phenolic resin material for pulley, and method of...

2004-03-10

2009-08-04

Douyon, Lorna M (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S494000, C524S566000, C474S152000, C474S166000, C029S892000

Reexamination Certificate

active

07569633

ABSTRACT:
A resin molding material for making pulleys containing a novolac type phenolic resin, a glass fiber, an inorganic substrate other than the glass fiber, and an elastomer is described. The novolac type phenolic resin, ranges from 25% by weight to 45% by weight, the glass fiber together with the inorganic substrate other than the glass fiber ranges from 45% by weight to 65% by weight, and the elastomer ranges from 0.5% by weight to 5% by weight, relative to the entire molding material and are blended together. As the inorganic substrate other than the glass fiber, for example, calcium carbonate is used. As the elastomer, for example, NBR is used. The phenolic resin molding material is molded to obtain a resin pulley.

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