Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1991-09-27
1993-07-20
Lesmes, George F.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428245, 428292, 428294, 4283202, 428408, 428426, 428432, 428902, 4289122, 501 7, 501 94, 501 95, B05D 312, C03C 1012, C04B 3502
Patent
active
052291960
ABSTRACT:
Improved fiber reinforced composites having near zero coefficients of thermal expansion are described. The improved composites include reinforcing fibers and matrix material in which gap structures which exist within the composite are filled with a bonding agent. The reinforcing fibers can be unidirectionally, bidirectionally or multidirectionally oriented within the matrix material and articles fabricated from the improved composite have reduced coefficients of thermal expansion in directions transverse to the orientations of the fibers. This improvement makes these improved composites useful for fabricating high energy laser mirror substrates.
REFERENCES:
patent: 3766000 (1973-10-01), Gibson et al.
patent: 4100322 (1978-07-01), Seibold et al.
patent: 4215161 (1980-07-01), Seibold et al.
patent: 4451118 (1984-05-01), Stalcup et al.
patent: 4791076 (1988-12-01), Leggett et al.
"Hac-Glas Composites For Laser Mirror Substrates", Robert W. Seibold, et al, Presented at the 22nd SAMPE Technical Conference, Nov. 6-8, 1990.
Buller Bruce W.
Gibson James O.
Seibold Robert W.
Denson-Low W. K.
Hughes Aircraft Company
Lachman M. E.
Lesmes George F.
Sales M. W.
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