Extrusion coating compositions and method

Details Extrusion coating compositions and method Extrusion coating compositions and method

1998-06-09

1999-08-24

Short, Patricia A.

Coating processes

With pretreatment of the base

Heating or drying pretreatment

427209, 4273743, 4273744, 525438, B05D 302

Patent

active

059422858

ABSTRACT:
Solid extrusion coating compositions for metal substrates, a method of extrusion coating a metal substrate, and a metal article are disclosed. The extrusion coating composition is a thermoplastic material and comprises: (a) a polyester having a weight average molecular weight of about 10,000 to about 35,000, and (b) a modifying resin, such as an epoxy resin having an epoxy equivalent weight of about 500 to about 15,000. The extrusion coating composition is applied to a metal substrate in an extrusion process to provide a composition film having a thickness of about 1 to about 40 microns.

REFERENCES:
patent: 4012363 (1977-03-01), Bruning et al.
patent: 4246378 (1981-01-01), Kometani et al.
patent: 5407702 (1995-04-01), Smith et al.
Chemical Abstracts, Registry File RN118330-58-8.

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