Process for preparing copolymer polyols

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...

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524710, 524729, 524732, 524750, 524760, 524762, 524765, 521137, 526238, 525127, 525131, C08F21602, C08F21614, C08F22026, C08F 242

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045741379

ABSTRACT:
Copolymer polyols are prepared by polymerizing an ethylenically unsaturated monomer in a polyahl mixture in the presence of iodine or an iodine-releasing inorganic compound. The use of the iodine or iodine-releasing inorganic compound provides a lower viscosity, more stable copolymer polyahl.

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