| 摘要 |
PCT No. PCT/JP83/00268 Sec. 371 Date Apr. 13, 1984 Sec. 102(e) Date Apr. 13, 1984 PCT Filed Aug. 16, 1983 PCT Pub. No. WO84/00804 PCT Pub. Date Mar. 1, 1984.A solar heat collector comprising a polyolefin resin heat collecting base, produced by blow molding, to which first and second coating layers have been applied to overcome the high infrared radiation and poor adhesive characteristics of polyolefins. The first coating layer, principally composed of at least one resin selected from thermoplastic acrylic resins and alkyd resins, and chlorinated polyolefin resins, epoxy resins and metallic powders, is applied onto the polyolefin resin base and the second coating layer, having solar selective absorptivity, is applied onto the first coating layer; thereby providing an inexpensive solar collector that is both durable and reliable despite exposure to harsh environments.
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