Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1987-03-11
1989-12-12
Bell, James J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428290, 428297, 523152, 523153, 523155, 523156, 523157, 523158, D04H 158
Patent
active
048867063
ABSTRACT:
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:
REFERENCES:
patent: 2558730 (1951-07-01), Cresswell
patent: 2847405 (1958-08-01), Mallison
patent: 2899262 (1959-08-01), Stanton et al.
Davis James E.
Harper Kenneth
Hibbard Billy B.
Lindsay John W.
Pursoo Johnson L.
BASF Corporation
Bell James J.
Hurley Jr. Rupert B.
Sherer Edward F.
Vestal Tom R.
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