Polyurethane polyolefins and prepolymers based on hydroxy functi

Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters

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528 59, 528 75, 560 26, 560115, 560158, 560330, C07C27108, C08G 1867

Patent

active

059903406

ABSTRACT:
A di-hydroxy-functionalized linear non-crosslinked polyolefin is disclosed having no pendant chain-branched groups which is prepared by reacting 1,4-diacetoxy-2-butene with 1,5-cyclooctadiene in the presence of a catalyst comprising a ruthenium metal carbene complex, characterized in that the functionality number of said polyolefin as determined by NMR is 2.0 and the viscosity of said polyolefin ranges from about 800 to 16000 mPa.s @25.degree. C. at a number average molecular weight ranging from 2,600 to 6,500 g/mole. A prepolymer comprising the reaction of a polyisocyanate with the polyolefin is also disclosed.

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