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Kuraray announces its decision to increase the prices of liquid polyisoprene rubber LIR, liquid polybutadiene rubber "LBR" and isobutylene water-soluble resin ISOBAM, which are being developed as part of its elastomer business. Details of the price revisions, which will commence with shipments on and after October 1, 2009, are given below.

Isoprene monomers and butadiene monomers, the key raw materials for the Kuraray elastomer products, are secondarily produced with ethylene and propylene.
Right now, a distinct imbalance between global supply and demand for butadiene and isoprene is emerging due to changes of feedstock, mainly in North America, which is from naphtha to natural gas. These changes as well as to be reduced production at a number of U.S. and European ethylene crackers have led to above situation. And consequently prices continue to rise rapidly across the world.
Given these factors, and in order to ensure ongoing supply and maintain profitability, Kuraray has decided to implement price revisions, as detailed below.

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