Stock material or miscellaneous articles – Composite – Of quartz or glass
Patent
1992-09-08
1993-11-23
Marquis, Melvyn I.
Stock material or miscellaneous articles
Composite
Of quartz or glass
428429, 428447, 136251, 136256, 156 99, 1563075, 156329, 528 15, B32B 900
Patent
active
052642852
ABSTRACT:
A surface of one substrate is bonded to a surface of another substrate employing a low temperature vulcanizing carborane siloxane adhesive composition. The bonding method comprises: (a) forming a solution comprising (1) a polycarborane siloxane polymer having vinyl groups attached to the backbone thereof, the concentration of vinyl groups per carborane group ranging from about 3 to 30%, (2) a difunctional silane curing agent, (3) a catalyst comprising a transition metal complex, and (4) a chosen solvent; (b) applying the solution to at least one of the surfaces; (c) allowing the solvent to evaporate, forming a thin film of the adhesive on the surface; (d) bringing the surfaces of the substrates into contact; and (e) bonding the surfaces of the substrates together by application of heat and, optionally, pressure. Optionally, the coated part(s) may be stored at a low temperature for a long period of time prior to the bonding process. This invention is particularly useful for bonding a solar cell cover to a solar cell or for bonding solar cells to an underlying substrate.
REFERENCES:
patent: 4692559 (1987-09-01), Ellion et al.
patent: 4753683 (1988-06-01), Ellion et al.
D. D. Stewart et al, "D.sub.2 -m-Carborane Siloxanes. 7. Synthesis and Properties of Ultra-High Molecular Weight Polymer", Macromolecules, vol. 12, No. 3, pp. 373-377 (1979).
E. Hedaya et al, "D.sub.2 -meta-Carborane-Siloxanes. IV. Synthesis of Linear, High Molecular Weight Polymers", Journal of Polymer Science, Polymer Chemistry Edition, vol. 15, pp. 2229-2238 (1977).
Denson-Low W. K.
Hughes Aircraft Company
Lachman M. E.
Marquis Melvyn I.
Sales M. W.
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