Method of evaluating scorch in flexible polyurethane foam

Details Method of evaluating scorch in flexible polyurethane foam Method of evaluating scorch in flexible polyurethane foam

1977-11-23

1978-12-26

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

73 15R, 73159, 264 401, 264 54, 521107, 521906, B29D 2704

Patent

active

041316606

ABSTRACT:
A method of evaluating the probability of scorch in flame retarded flexible polyurethane foam without preparing a large quantity of foam is described. A microwave oven is utilized to heat a foam sample pursuant to the invention. The method is useful to predict the probability that flame retarded foam will scorch on curing and therefore can be used to avoid damage to large commercial quantities of foam. The method can also be used to screen flame retardants for polyurethane foams.

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Lanigan, W. L. "Microwave Curing of Flexible Polyurethane Foam Mouldings", in British Plastics, Oct. 1963, pp. 562-565.

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