Antistatic slip filled with foamed pieces and process of making

Details Antistatic slip filled with foamed pieces and process of making Antistatic slip filled with foamed pieces and process of making

1987-07-02

1988-10-04

Van Balen, William J.

Stock material or miscellaneous articles

Sheet including cover or casing

Foamed or expanded material encased

428240, 428283, 4283044, 4283166, 4283179, 428327, 156264, B32B 100, B32B 310, B32B 900

Patent

active

047755695

ABSTRACT:
The invention relates to elastic padded, washable, antiseptic articles for personal use, particularly for therapeutic equipment, pillows, protective garments and similar objects. According to the invention idea, an antistatic slip of max. 20 kg/m.sup.3 specific weight is filled with regularly cut, but irregularly arranged, static open cellular polyeter type pieces of polyurathane foam, the material of which is antiseptic.
The invention includes the production, characterized in that in the course of preparing the polyurathane foam, 0.4-1.6 weight % enzymatic decomposition-inhibiting additive is added to the polyol component. The block of foam is split up, then cut to pieces with rotary and/or swinging knives, and the static pieces are blown from the knives into the slip to be filled.

REFERENCES:
patent: 3900648 (1975-08-01), Smith
patent: 4110508 (1978-08-01), Isgur et al.
patent: 4304824 (1981-12-01), Karpinski

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