Fibers

asbestos, sisal, cotton, jute, man-made, and metallic. Of the resins used in reinforced plastics, 90% are polyesters. Others used are epoxies, phenoli...
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II/I= L -~ (6F’ Zbid., p. 165. (7F) Quinn, P., Zbid., 22, 78 (1961). (8F) Shearer, H. E., Am. DyestuJ Reptr. 50. No. 8, 45 (1961). VOL. 53, NO. 10

OCTOBER 1961

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