Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1983-09-02
1985-01-15
Weston, Caleb
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
15624412, 15624423, 15624424, 156498, 156500, 264174, 264176R, 425113, 425392, 425516, B32B 3114
Patent
active
044937474
ABSTRACT:
An extrusion system is provided for covering a conductor (14) with a crystalline thermoplastic elastomer insulating material. The plastic material is tubed onto the conductor by apparatus which includes a core tube (61) that is mounted in an extruder crosshead (41) such that its free end is positioned within the interior of a die (81, 101) and is spaced from an orifice of the die a predetermined percentage of the land length of the die. A flow passage between the core tube (61) and a wall which defines the die cavity is controlled in accordance with the relative value of the thermal energy which is released by the insulating material at the onset of crystallization. In one arrangement, which has been found to be suitable for a crystalline thermoplastic elastomer having a relatively high value of released thermal energy, the die cavity and the core tube are arranged to provide a gradually converging path toward the die opening. For an insulating material having a relatively low value of released thermal energy, the flow passage is modified to provide a diverging portion (105) and then a rapidly converging portion (110) which communicates with the land of the die.
REFERENCES:
patent: 2920351 (1960-01-01), Hardesty et al.
patent: 3024497 (1962-03-01), Hardesty et al.
patent: 3037068 (1962-05-01), Wessel
patent: 3227786 (1966-01-01), Cohen
patent: 3270977 (1966-09-01), Tillou
patent: 3346921 (1967-10-01), Bunish et al.
patent: 3553042 (1971-01-01), Cocco
patent: 3890416 (1975-06-01), Bauer et al.
patent: 3946097 (1976-03-01), Takahashi et al.
patent: 4061461 (1977-12-01), Hessenthaler
patent: 4082585 (1978-04-01), Kanotz et al.
patent: 4090763 (1978-05-01), Congdon et al.
patent: 4172106 (1979-10-01), Lewis
patent: 4206011 (1980-06-01), Kanotz et al.
patent: 4339298 (1982-07-01), Kanotz et al.
Kanotz William M.
Vesperman William C.
Wilson Max K.
AT&T - Technologies, Inc.
Somers E. W.
Weston Caleb
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