Method for the production of molded articles from polylaurolacta

Details Method for the production of molded articles from polylaurolacta Method for the production of molded articles from polylaurolacta

1984-03-01

1986-04-08

Czaja, Donald

Plastic and nonmetallic article shaping or treating: processes

With severing, removing material from preform mechanically,...

To form particulate product

2643286, 26432817, 26433119, 524265, B29C 3364

Patent

active

045811911

ABSTRACT:
A polylaurolactam mold is being produced by that a laurolactam melting at first is being mixed with a catalyst and the mixture afterwards being compounded with an activator and polymerized, whereby the polymerizing material is being cast to threads or cords and the reduced material is being injection molded at temperatures of 430.degree. F. to 490.degree. F. and at pressures of 50.10.sup.5 to 100.10.sup.5 Pa, whereby, according to the invention, before the molding 0.1 to 5 wt. % silicon fat is added to the granules. The then resulting molded products, especially protective helmets and protective plates, are distinguished by superior physical properties.

REFERENCES:
patent: 3637604 (1972-01-01), Schneider et al.

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