Polyurethane Particles Produced Without Isocyanates

Title: POLYHYDROXYURETHANE MICROPARTICLES, AND PROCESS FOR PRODUCING SAME

 Number/Link: WO2012150684  (in Japanese)

 Applicant/Assignee: DAINICHISEIKA COLOR CHEM

Publication date: 8-11-2012

Gist”: Polyhydroxyurethane microparticles produced form cyclic carbonates and amines. 

Why it is interesting: For a number of years non-isocyanate (hydroxy-)polyurethanes have been promoted by Oleg Figovsky (a.o.) without much success. However now and then this chemistry pops up again, usually related to coating systems.

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