Method of making a coated airbag

Details Method of making a coated airbag Method of making a coated airbag

2009-10-20

2010-06-15

Singh-Pandey, Arti (Department: 1786)

Coating processes

With post-treatment of coating or coating material

Heating or drying

Reexamination Certificate

active

07736702

ABSTRACT:
Coating compositions, which are used as a monolithic coating layer for airbags. The coating compositions include a combination of urethanes which are blended together. At least one of the urethane components provides gas-retaining properties and the other provides the aging stability. The gas-retaining urethane may be characterized as having high tensile strength at break, high elongation at break, and a 100% modulus less than 1,200 psi. The aging stability urethane has a polycarbonate backbone as result of a manufacturing process in which a polycarbonate diol is reacted with an isocyanate. The resulting coating compositions, when applied as a single layer to an airbag fabric, result in an airbag with good gas retention and aging stability.

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