Thermally flexible polyurethane coatings for substrates containi

Details Thermally flexible polyurethane coatings for substrates containi Thermally flexible polyurethane coatings for substrates containi

1987-04-08

1989-03-28

Lusignan, Michael

Stock material or miscellaneous articles

Composite

Of polyamidoester

4284235, 528 80, 528 81, 528 83, 528 84, B32B 2700, B32B 2740, C08G 1834, C08G 1842

Patent

active

048163252

ABSTRACT:
The present invention is directed to a process for coating a substrate containing aramid fibers by coating the substrate with a two-component polyurethane-forming composition which cures to form a tough, flexible polyurethane coating which is capable of withstanding at least 3000 temperature cycles between a temperature of -65.degree. F. and a temperature of 160.degree. F. and back without developing microcracks. The present invention is also directed to the coated substrate produced in accordance with this process.

REFERENCES:
patent: 4413111 (1983-11-01), Markusch et al.
patent: 4485228 (1984-11-01), Chang et al.
patent: 4623951 (1986-11-01), DuPont et al.
patent: 4639471 (1987-01-01), Hirai et al.

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