LIGHT-STABILIZED POLYMERS
1,158,548. U.V. resistant films. NITTO KASEI CO. Ltd. 21 July, 1966 [26 July, 1965; 25 Aug., 1965; 13 Sept., 1965], No. 32778/66. Heading B5B. [Also in Divisions C2 and C3] The resistance of a poly-(ethylene glycol terephthalate) film to ultraviolet radiation is increased by immersing a 0À05 mm. thi...
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Zusammenfassung: | 1,158,548. U.V. resistant films. NITTO KASEI CO. Ltd. 21 July, 1966 [26 July, 1965; 25 Aug., 1965; 13 Sept., 1965], No. 32778/66. Heading B5B. [Also in Divisions C2 and C3] The resistance of a poly-(ethylene glycol terephthalate) film to ultraviolet radiation is increased by immersing a 0À05 mm. thick film of the material for 30 seconds at 10 C. in an acetone solution containing 2% by weight of |
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