Polybutene molded article and method for making same

Details Polybutene molded article and method for making same Polybutene molded article and method for making same

1986-10-30

1988-11-08

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

264281, 264372, 264320, 26432816, 264346, 425378R, 425381, 4253781, B29C 4724, B29C 4786

Patent

active

047833017

ABSTRACT:
The specification discloses a polybutene-1 polymer product and method and apparatus for making same in which the polymer is introduced into a form which defines the shape of the desired part and is then subjected to shear at a temperature from just above to just below the melting point of the polybutene-1 polymer, achieved by positioning the polymer blend between a shell and a mandrel and rotating the two relative to one another. When the viscosity of the polymer reaches a maximum, the part solidified and removed for subsequent use.

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patent: 4449904 (1984-05-01), Austen et al.

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