Basf Corporation

Billy B Hibbard

Joe A Mann

Richard E White

Frans P Koeleveld

Howard H Bryant

Agnes K Potepan

Barry T Knight

John W Lindsay

Thomas E Smith

Johnson L Pursoo

Kenneth Harper

Hughey A Rush

James E Davis

MIchael V Tullos

An improved fibrous polyacrylonitrile mixture for use in friction products enables the production of low resiliency preforms by mixing an additive with a polyacrylonitrile wet gel. The additive is incorporated into the fiber in extremely large amounts. The additive is a member selected from the group consisting of:

Fibrous polyacrylonitrile reinforcing mixture for friction product

The invention is specifically concerned with an improvement in the process of manufacturing reinforced materials. The reinforced materials are conceived to include a wide variety of materials, the most notable being high density compressed gaskets. The improvement comprises mixing a cut solid (generally a cut fiber) with a body material to produce the reinforced materials. The solid is cut into particulates of highly variable size, the range in the size of the particulates being adjusted to optimize the characteristics of the resulting reinforced material. The cut solid is produced utilizing comminuting machines previously used for the recycle of waste products.

Method of making reinforced materials having an improved reinforcing

Method of making reinforced materials having improved reinforcing

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Williamsburg, VA, United States of America

Billy B Hibbard