Method of producing flexible plastic bands compounded with hard-

Details Method of producing flexible plastic bands compounded with hard- Method of producing flexible plastic bands compounded with hard-

1994-01-07

1996-08-20

Dawson, Robert A.

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Utilizing diverse solid particles

264125, 264175, B29C 4324, B29B 756

Patent

active

055476252

ABSTRACT:
In order to manufacture flexible plastic bands of a thermoplastic synthetic resin containing 40% or more by volume hard materials and/or soldering powder, two grooved and heated shearing rollers arranged parallel to one another and running in opposite directions are used onto which components are applied. The front shearing roller must have a temperature of 25.degree. to 90.degree. C. on the application side and of 30.degree. to 80.degree. C. on the removal side, the rear shearing roller must have a temperature of 30.degree. to 130.degree. C. on the application side and on the removal side of 35.degree. to 100.degree. C., and the temperature of the rear shearing roller must be at least 5.degree. C. above the temperature of the front shearing roller. In addition, the front shearing roller must exhibit a speed of 5 to 25 rpms and the rear roller a speed which is 5 to 70% lower.

REFERENCES:
patent: 4773762 (1988-09-01), Albers
patent: 5019311 (1991-05-01), Koslow
patent: 5080843 (1992-01-01), Larker et al.
patent: 5198489 (1993-03-01), Sterzel et al.
Albers, A., "Aufbereiten mit dem Scherwalzenextruder", Kunststoffe (1992), vol. 82, pp. 982-987, with English language abstract.

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