13-06-2013 дата публикации
Номер: US20130150526A1
The invention relates to a process for the preparation of polyol mixtures comprising polyether carbonate polyol and polyol containing urethane groups, characterized in that 112-. (canceled)13. A process for the preparation of a polyol mixture comprising polyether carbonate polyol and polyol containing urethane groups , wherein(i) in a first step one or more alkylene oxides and carbon dioxide are added on to one or more H-functional starter substances in the presence of at least one DMC catalyst (“copolymerization”), and(ii) in a second step at least one amino-functional substance is added to the crude mixture formed in step (i).14. The process according to claim 13 , wherein(iii) the polyol mixture resulting from step (ii) is reacted with di- and/or polyisocyanate.15. The process according to claim 13 , wherein the amino-functional substance is an aliphatic claim 13 , a cycloaliphatic and/or a heterocyclic primary amine.16. The process according to claim 13 , wherein the amino-functional substance is a primary monoamine claim 13 , a secondary monoamine claim 13 , a diamine with primary and/or secondary amino groups and/or a hydroxy-functional amine with primary or secondary amino groups.17. The process according to claim 13 , wherein the amino-functional substance is 2-aminoethanol claim 13 , 2-amino-1-propanol claim 13 , 1-amino-2-propanol claim 13 , 2-amino-1-butanol claim 13 , 4-amino-1-butanol claim 13 , 4-(2-hydroxyethyl)-piperidine claim 13 , 4-(2-hydroxyethyl)-piperazine claim 13 , 2-aminocyclohexanol claim 13 , 4-aminocyclohexanol claim 13 , 2-aminocyclopentanol claim 13 , diethanolamine claim 13 , bis-(2-hydroxypropyl)-amine and/or diamines with primary and/or secondary amino groups (such as claim 13 , for example claim 13 , 1 claim 13 ,2-diaminoethane claim 13 , 1 claim 13 ,3-diaminopropane claim 13 , 1 claim 13 ,4-diaminobutane claim 13 , 1 claim 13 ,2-bis-(methylamino)-ethane claim 13 , 1 claim 13 ,3-diaminopentane claim 13 , 1 claim 13 ,6-diaminohexane ...
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