| 摘要 |
Compositions comprising (1) a copolymer of ethylene and 0.1 percent to 18 percent by weight of carbon monoxide, said percentage range being the proportion of carbon monoxide in the copolymer, and (2) an ultraviolet light degradable amount of an organometallic compound or salt of a common metal, e.g., ferricine, cobalt acetyl acetonate, etc., whereby film, articles of manufacture and especially packaging means, upon exposure to ultraviolet rays emitted by the sun are capable of accelerated deterioration thereby causing such materials including packaging means to decompose forming dust or flakes which may become embedded in the soil or carried away by rain water under those circumstances where they are thrown away out of doors so as to be exposed to natural environmental conditions.
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