Flexibilized polyurethane pipe coating

Details Flexibilized polyurethane pipe coating Flexibilized polyurethane pipe coating

1984-08-28

1985-09-17

Welsh, Maurice J.

Coating processes

With post-treatment of coating or coating material

Heating or drying

4273882, 528 77, 528 78, C08G 1838

Patent

active

045420491

ABSTRACT:
Disclosed is a coating composition suitable for coating metal pipe, especially the interior of pipe. The coating composition comprises a blend of one or more polyether polyols and a flexibilizing stearically hindered amine-initiated polyether polyol and a multi-isocyanate curing agent. The curing composition optionally may contain an organic solvent and inert particulate filler. The coating composition cures within about 1 to 3 minutes after application and preferably is spray applied. The coating composition possesses adequate flexibility to pass a 15% ring deflection test.

REFERENCES:
patent: 3112281 (1963-11-01), Gromacki et al.
patent: 3255253 (1966-07-01), Kuryla
patent: 3346517 (1967-10-01), Kamal
patent: 3423344 (1969-01-01), Odinak et al.
patent: 3640997 (1972-02-01), Fijal

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