A process for producing a cyclic and/or linear phosphonitrilic acid ester from a cyclic and/or linear phosphonitrile dichloride is provided, wherein the reaction time is shorter and the content of monochloro phosphazenes is very small.
When phosphonitrile dichloride is reacted with a metal arylolate and/or a metal alcoholate in the presence of a reaction solvent, a metal arylolate and/or a metal alcoholate composed of at least two different metals having different ionization energies is used and also a specific compound is used as a catalyst.
NAPHTHALENE-RING RESIN, RESIN COMPOSITION, AND CURED PRODUCT THEREOF
申请人:NIPPON KAYAKU KABUSHIKI KAISHA
公开号:EP0644216B1
公开(公告)日:1996-07-17
Process for producing phosphonitrilic acid ester
申请人:Kuwata Kotaro
公开号:US20070060739A1
公开(公告)日:2007-03-15
A process for producing a phosphonitrilic acid ester. The process comprises using a specific compound as a catalyst to react phosphonitrile dichloride with at least one member selected among phenol compounds and/or alcohol compounds in the presence of a reaction solvent. Alternatively, the process comprises reacting a liquid reaction mixture obtained in a first stage with at least one member selected among phenol compounds and/or alcohol compounds without isolating phosphonitrile dichloride from the mixture.