Oriented chopped fiber mats and method and apparatus for making

Details Oriented chopped fiber mats and method and apparatus for making Oriented chopped fiber mats and method and apparatus for making

1987-04-27

1991-05-21

Cannon, James C.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

19296, 264108, 361226, 4251748E, 428288, 428290, 428294, 428338, D04H 174, D04H 164

Patent

active

050173120

ABSTRACT:
Apparatus for the manufacture of oriented chopped glass fiber mats from non-conductive fiber feed stock is disclosed. Apparatus includes means for increasing the conductance of the feed stock, electrically insulative transfer surface; means for establishing and maintaining a directional electric field to orient the chopped fibers, and a mat receiving surface to receive the oriented mat. The non-woven mat comprises a plurality of cut or chopped fibers having their longitudinal axes predominately disposed approximately parallel to a predetermined orientation axis lying in the plane of the mat. A preferred embodiment includes the incorporation of a glass fiber mat into a composite by applying a matrix resin to the mat in sufficient quantity to ensure the integrity of the composite. The process for manufacturing said non-woven oriented mats is also disclosed.

REFERENCES:
patent: 3843756 (1974-10-01), Talbott et al.
patent: 4432916 (1984-02-01), Logan
patent: 4664856 (1987-05-01), Talbott et al.
Selo et al., "Antistatic Treatments", pp. 291-298 in Chap. 4 of Handbook of Fiber Science and Technology: vol. II Chemical Processing of Fibers and Fabrics-Functional Finishes Part B, Lewis et al., Edits, Marcel Dekker, Inc., New York, N.Y. (1984).

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