Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Patent
1982-03-05
1983-08-02
Hoffman, James R.
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
427239, 427318, 4273881, 427409, 428458, 525436, 525537, B32B 108, B05D 136, C08L 7700
Patent
active
043966586
ABSTRACT:
A novel polymer alloy coating is provided consisting essentially of polyphenylene sulfide and an amount of polyimide. The polyimide is produced by the crosslinking and curing of an acetylene terminated aromatic polyimide oligomer resin. The amount of polyimide utilized is sufficient to enhance the adhesiveness of the polyphenylene sulfide to a metal substrate without substantially changing the melt flow properties, chemical resistance and thermal stability of the polyphenylene sulfide. A polymer alloy resin composition is also provided for application to the metal substrate to produce the polymer alloy coating. The novel polymer alloy coating is particularly suitable for coating pipes, particularly pipe couplings for oil and gas well production pipes which are exposed to extreme temperatures, pressures and corrosive environments.
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Goodman Barnard P. E.
Mettes Hal J.
AMF Incorporated
Dougherty David E.
Hoffman James R.
Zall Michael E.
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