Method of making a smooth, dimensionally stable, mica-filled, gl

Details Method of making a smooth, dimensionally stable, mica-filled, gl Method of making a smooth, dimensionally stable, mica-filled, gl

1979-07-02

1981-01-27

Kendell, Lorraine T.

Paper making and fiber liberation

Processes and products

With coating after drying

162145, 162146, 162168R, 162169, 162181C, 428283, 428324, 428363, 428454, B32B 516, D21F 1100

Patent

active

042473640

ABSTRACT:
A mica-filled glass fiber sheet which is smooth, of relatively low porosity, and dimensionally stable is described as is its method of manufacture. The sheet is prepared from a low-consistency aqueous slurry wherein the solids consist essentially of glass fibers, organic fibers, mica, and binder. Based on 100 parts by weight glass fibers, 3 to 15 parts by weight organic fibers, 30 to 100 parts by weight mica flakes, and 5 to 20 parts by weight organic binder are added to the water in preparing the furnish. In forming the sheet, this slurry or furnish is deposited onto a moving screen, the excess water is removed, and the wet laid sheet is dried and the binder set. In a subsequent operation, the sheet is saturated with a resin solution or latex.

REFERENCES:
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patent: 3622445 (1971-11-01), Heidweiller
patent: 3679544 (1972-07-01), Ashikaga et al.
patent: 3749638 (1973-07-01), Renaud et al.
patent: 3773513 (1973-11-01), MacClaren
patent: 4060451 (1977-11-01), Uchiyama et al.

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