Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
イミノオキサジアジンジオン基を有するポリイソシアネートおよびその製造方法
Document Type and Number:
Japanese Patent JP4106134
Kind Code:
B2
Abstract:
Production of polyisocyanates is new, in which isocyanates of formula (OCN-CH2)X (I) are obtained by polymerisation in the presence of hydrogen polyfluorides of formula (II) as oligomerisation catalysts, in which X = optionally branched, optionally cyclic 3-20C groups containing at least one other NCO group and optionally other hetero atoms or groups (N, O, S); m = 0.1 or more; and M = n-charged cation(s). Also claimed are the products obtained by this process.

Inventors:
Frank Richter
Carl-Gert Dauris
Halalto meltes
Application Number:
JP23111598A
Publication Date:
June 25, 2008
Filing Date:
August 04, 1998
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
Bayer Aktiengesellschaft
International Classes:
C07D251/34; B01J31/02; C08G18/79; C07D273/04; C08G18/02; C08G18/16; C08G18/18; C08G18/22
Domestic Patent References:
JP3995300B2
JP2258771A
Attorney, Agent or Firm:
Aoyama Aoi
Yasuo Shibata



 
Previous Patent: JPH04106133

Next Patent: JPH04106135