Method for producing tire-shaped articles from polyurethane mult

Details Method for producing tire-shaped articles from polyurethane mult Method for producing tire-shaped articles from polyurethane mult

1980-09-02

1984-09-18

Silbaugh, Jan

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

264311, 425130, B29C 504, B29H 1702, B29H 300

Patent

active

044723407

ABSTRACT:
The instant invention is directed to a method for producing hollow articles which are open toward the axis, are rotationally symmetrical and symmetrical with respect to a central plane produced from polyurethane multi-component reaction materials by the reaction casting method, a mold core being required during production for generating the cavity in the article, and the reaction mixture being supplied from the rotational axis via feed channels to a mold cavity, comprising: supplying a reaction mixture alternately to each side of the mold cavity, the article thus being built up symmetrically with respect to the rotational axis.

REFERENCES:
patent: 2897540 (1959-08-01), Rhodes
patent: 3457594 (1969-07-01), Baudou
patent: 3645655 (1972-02-01), Beneze
patent: 3751551 (1973-08-01), McGillvary
patent: 3924982 (1975-12-01), Yang et al.
patent: 4313909 (1982-02-01), Boden et al.

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