Process to produce enveloped fiberglass product

Details Process to produce enveloped fiberglass product Process to produce enveloped fiberglass product

1987-05-28

1989-04-25

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156267, 428 74, 428 78, 428192, 264252, 264258, B32B 3104

Patent

active

048245070

ABSTRACT:
A molded fiberglass product and process for producing that product are disclosed. A fiberglass mat is molded to a desired shape. It is trimmed and placed between two sheets of facing fabric, the facing fabric pretreated with a thermoset binder and a heat activated adhesive. The facing sheets and fiberglass mat are placed into a press with a heated mold where the fiberglass is compressed at its edges and the sheets are sealed to the fiberglass and beyond the fiberglass edges to each other. The resultant workpiece is trimmed and the final product is a completely enveloped molded fiberglass product with all fiberglass surfaces and edges, both external and internal, enveloped in facing, no fiberglass exposed.

REFERENCES:
patent: 3415708 (1968-12-01), Rondum
patent: 3829245 (1975-04-01), Fetherston et al.
patent: 4486482 (1984-12-01), Kobayashi et al.
patent: 4504347 (1985-03-01), Munk et al.
patent: 4620890 (1986-11-01), Myers et al.
patent: 4671972 (1987-01-01), Adiletta

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