Stock material or miscellaneous articles – Surface property or characteristic of web – sheet or block
Patent
1998-02-16
1999-10-26
Weisberger, Richard
Stock material or miscellaneous articles
Surface property or characteristic of web, sheet or block
428142, 428172, 428408, 428920, 428921, 428221, 556450, C08L 8304
Patent
active
059725125
ABSTRACT:
A polymer matrix composite comprises a matrix of a cured methylsilsesquioxane resin and a reinforcing material. The composite has low heat release rate, smoke yield, and carbon monoxide yield when burned. After burning, the composite has high char yield and retains much of its initial tensile strength. The method for making the composite comprises applying a silanol-functional methylsilsesquioxane resin comprising 70 to 90 mol % ((CH.sub.3)SiO.sub.3/2) units and 10 to 25 mol % (CH.sub.3 Si(OH)0.sub.2/2) units to a reinforcing material and curing the resin.
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Kim et al., Thermal and Flammability Properties of poly(p-phenylene-benzobisoxazole), Journal of Fire Sciences, vol. 11, pp. 296-307, 1993.
Sastri et al., Flammability Characteristics of Phthalonitrile composites, 42nd International SAMPE Symposium, pp. 1032-1038, 1997.
Chao et al., Development of Silicone Resins for use in Fabricating Low Flammability Composite Materials, Proc. 42nd International SAMPE, vol. 42, pp. 1355, 1997.
Boisvert Ronald Paul
Burns Gary Thomas
Chao Timothy Chi-Shan
Katsoulis Dimitris Elias
Sarmah Satyendra Kumar
Brown Catherine U.
Dow Corning Corporation
Weisberger Richard
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