Compositions: coating or plastic – Coating or plastic compositions – Silicon containing other than solely as silicon dioxide or...
Patent
1987-03-13
1988-05-03
Morris, Theodore
Compositions: coating or plastic
Coating or plastic compositions
Silicon containing other than solely as silicon dioxide or...
10628718, C08L 8306, C09K 300
Patent
active
047417781
ABSTRACT:
A thermal control coating composition comprising a binder made of a condensation polymerization product of Si--(OR).sub.4 added with titanium oxide acting as a white pigment, common mica particles for improving resistance to thermal cycling and cerium oxide particles for improving the resistance to UV irradiation. The thermal control coating composition has an initial solar absorptance (.alpha..sub.s) of not more than 0.3 and an initial thermal emittance (.epsilon.) of not less than 0.8. The coating composition exhibits excellent properties when subjected to an ageing test corresponding to the use thereof on a standstill orbit for 10 years. The weight of the paint may be reduced by the use of the coating composition of the invention such that an antenna (having a diameter of 3.5 m) of a large capacity communications satellite is coated with 3 kg of the coating composition of the invention to form a durable coating comparable to a coating formed by using 6 kg of a conventional thermal control paint.
REFERENCES:
patent: 4571365 (1986-02-01), Ashlock et al.
patent: 4648904 (1987-03-01), DePasquale et al.
Physics of Thin Films, vol. 5, H. Schroeder; G. Haas & R. E. Thun, Eds. Ch. 3, Academic Press, 1969.
Hasuda Yoshinori
Horie Toshio
Morris Theodore
Nippon Telegraph & Telephone Corporation
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