Polyurethane and polyurethane-urea elastomers from polytrimethylene ether glycol

   
   

Polyurethanes or polyurethane-ureas prepared from: (a) polytrimethylene ether glycol having a number average molecular weight in the range of about 1,000 to about 4,000 and unsaturated end groups in the range of about 0.003 to about 0.015 meq/g; (b) diisocyanate; and (c) diol or diamine chain extender; and their manufacture, intermediates and use.

Полиуретаны или полиуретан-moceviny подготовили от: (a) гликоль эфира polytrimethylene имея вес in the range of about 1.000 среднего номера молекулярный до около 4.000 и unsaturated конец собирает in the range of about 0.003 до около 0.015 meq/g; (b) diisocyanate; и (c) разбиватель диола или диамина цепной; и их изготовление, промежуточные звена и польза.

 
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