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facilitates a product that has properties similar to those of natural rubber, with a cis-content of over 96%, a relative molecular mass distribution index less than 3, and a Mooney viscosity of 70-90. As yet there are no commercial producers of isoprene rubber in China. Consumption of rubber in China has risen to over 3 M tonne/y, but natural rubber output in the country is just above 500,000 tonne/y. Imports of both synthetic and natural rubber have risen to over 1 M tonne/y. China Chemical Reporter, 6 Aug 2007, 18 (22), 13 Asahi Glass to target Europe for urethanes business Asahi Glass plans to market Preminol for its urethanes segment in Europe by 2008. Preminol is a polyether polyol having an ultra-high molecular weight. It offers innovative catalyst technology that reduces the generation of byproducts.
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