Coating processes – Electrical product produced – Wire conductor
Patent
1977-07-18
1978-12-26
Lusignan, Michael R.
Coating processes
Electrical product produced
Wire conductor
427120, 427156, 427388A, 428375, 428378, 428425, 260 312N, 260 312XA, 260 316, 260 328N, 260 332R, 528 80, B05D 512, B05D 302
Patent
active
041316932
ABSTRACT:
A varnish is provided for coating a wire which is directly tinnable. The varnish comprises hardenable polyester urethane having a urethane equivalent weight of 150-850, the polyester being formed as the product of the reaction of a saturated polyester containing at least two hydroxyl functional groups and an aromatic isocyanate containing at least two functional groups of isocyanate and a phenol-free solvent for the polyester urethane. A process for producing this varnish is also provided.
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Janssen Harald
Von Gruner Horst
Wendt Hartmut
Dr. Beck & Co AG
Lusignan Michael R.
Striker Michael J.
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