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HIGHLY ACTIVE CATALYSTS CONTAINING BIMETALLIC CYANIDES
HIGHLY ACTIVE CATALYSTS CONTAINING BIMETALLIC CYANIDES
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机译:含双氰胺的高活性催化剂
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摘要
Highly active double metal cyanide (DMC) catalysts are disclosed. The catalysts comprise a DMC complex, and organic complexing agent, and from about 5 to about 80 wt. %, based on the amount of catalyst, of a polyether having a number average molecular weight less than about 500. The catalysts polymerize propylene oxide at a rate in excess of about 1 kg PO/g Co/min. at 100 ppm catalyst, based on the weight of finished polyether, at 105 DEG C. The catalysts, which are easy to prepare, give polyether polyols with exceptionally low unsaturation levels.
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机译:公开了高活性双金属氰化物(DMC)催化剂。所述催化剂包含DMC配合物和有机配合剂,并且为约5至约80重量%。基于催化剂的量,聚醚的重量平均百分数小于约500。该催化剂以超过约1kg PO / g Co / min的速率聚合环氧丙烷。以最终的聚醚重量为基准,在100 ppm催化剂下,温度为105℃。该催化剂易于制备,得到的聚醚多元醇的不饱和度极低。
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