Process for uniformly filling cavities with a foam insulating ma

Details Process for uniformly filling cavities with a foam insulating ma Process for uniformly filling cavities with a foam insulating ma

1975-10-02

1978-02-14

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

23288R, 260 25BC, 260 25BD, 264469, 264 53, 264DIG5, B29D 2704

Patent

active

040738418

ABSTRACT:
Cavities are filled with a foam insulating material by introducing the reaction mixture through the outlet nozzle of a mixing head which is drawn lengthwise through the cavity at a rate adapted to the rate of foaming, wherein the reactivity of the reaction mixture is accelerated during the filling procedure so that the reaction mixture is foaming up simultaneously over the length of the cavity.

REFERENCES:
patent: 2827665 (1958-03-01), Rogers et al.
patent: 3052927 (1962-09-01), Hoppe et al.
patent: 3090078 (1963-03-01), Ackles
patent: 3297802 (1967-01-01), Powers
patent: 3301926 (1967-01-01), Reiland
patent: 3366719 (1968-01-01), Lueders
patent: 3389519 (1968-06-01), Williams et al.
patent: 3432582 (1969-03-01), Bender
patent: 3439075 (1969-04-01), Bauer et al.
patent: 3444279 (1969-05-01), Dost
patent: 3484509 (1969-12-01), Keller
patent: 3491171 (1970-01-01), French
patent: 3551947 (1971-01-01), Jennings
patent: 3916023 (1975-10-01), Porter et al.

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