Liquid coatings for cast iron

Details Liquid coatings for cast iron Liquid coatings for cast iron

1992-05-01

1994-03-01

Michl, Paul R.

Stock material or miscellaneous articles

Composite

Of polyamidoester

4273855, 4273881, 4284258, 524590, 525123, 525130, 528 745, 528 60, C08G 1810, C08L 9100, C08L 7500, C08F 800

Patent

active

052906329

ABSTRACT:
Novel polyurethane formulations especially useful as coating for the protection of ductile cast iron pipes. The polyurethane is prepared by mixing two components, A and B. Component A comprises castor oil, a low molecular weight polyol having a molecular weight between 76 and about 450, preferably with an elastomer. Component B is a polymeric MDI.

REFERENCES:
patent: 4555536 (1985-11-01), Maki et al.
patent: 4582891 (1986-04-01), Maki et al.
patent: 4877829 (1989-10-01), Vu et al.
patent: 5008359 (1991-04-01), Hunter

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