Production of breathing materials

Details Production of breathing materials Production of breathing materials

1983-01-05

1985-02-19

Rimrodt, Louis K.

Apparel

Hand or arm coverings

Gloves

2167, 2243A, 2243B, 2DIG1, 264158, A41D 1902, B29D 718

Patent

active

044996110

ABSTRACT:
A flexible sheet material shaped article comprises a thermoplastic material having a plurality of spaced breathing apertures extending through the thickness thereof, each breathing aperture filled with a porous fibrous material. The flexible sheet material shaped article is formed by utilizing a vertical mold, and hanging a plurality of spaced strands of porous fibrous material from the top of the mold. The mold has a plan or cross-sectional shape corresponding to the shape of the article being provided. The mold is then filled with liquid thermoplastic material, and after cooling a slab of thermoplastic material with strands of fibrous material is produced. The slab is then sliced in a dimension perpendicular to the dimension in which the strands extend, and to the desired thickness to provide the flexible sheet material shaped article.

REFERENCES:
patent: 2296305 (1942-09-01), Roberts
patent: 2577284 (1951-12-01), Steine
patent: 3247299 (1966-04-01), Zaha
patent: 3539667 (1970-11-01), Nameishi
patent: 3565982 (1971-02-01), Day
patent: 3608036 (1971-09-01), Peeso, Jr.
patent: 3668056 (1972-06-01), Hayes, Jr.
patent: 3700533 (1972-10-01), Schmitz
patent: 3787546 (1974-01-01), Pratt et al.
patent: 4139591 (1979-02-01), Jurisich

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