UA12823C2 - 1,4-bis(4-isocyanatephenoxy)phenyl tetrafluoride as monomer for the preparation of polyurethanes having increased hydrolytic and thermal stability
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1,4-bis(4-isocyanatephenoxy)phenyl tetrafluoride as monomer for the preparation of polyurethanes having increased hydrolytic and thermal stability
Інститут хімії високомолекулярних сполук АН України
Институт химии высокомолекулярных соединений АН Украины
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Application filed by Інститут хімії високомолекулярних сполук АН України, Институт химии высокомолекулярных соединений АН УкраиныfiledCriticalІнститут хімії високомолекулярних сполук АН України
Priority to UA93010009ApriorityCriticalpatent/UA12823C2/en
Publication of UA12823C2publicationCriticalpatent/UA12823C2/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
The invention relates to novel chemical compound 1,4-bis(4-isocyanatephenoxy)phenyl tetrafluoride of general formula: . It can be used as monomer for the preparation of hetero-chain polymers, e.g. polyurethanes, having increased hydrolytic and thermal stability.
UA93010009A1992-12-171992-12-171,4-bis(4-isocyanatephenoxy)phenyl tetrafluoride as monomer for the preparation of polyurethanes having increased hydrolytic and thermal stability
UA12823C2
(en)
Process for producing 2,5-diamino-4,6-dichloropyrimidine derivatives protected on the 5-positioned nitrogen atom, as well as pharmaceutical compositions comprising same