Huntsman International LLC

Johannes Lodewijk Koole

Robert Henry Carr

Willem Van Der Borden

Rabah Mouazer

Ramon Scheffer

Udo Brian Dave Mike Rodger Bruinsma

Adolf Daan Zijl

Process for the production of di- and poly(diamino diphenyl methane) comprising the steps of

Process for production of di- and polyamines of the diphenylmethane series

A method for removing methylene-bridged polyphenyl polyamines from an aqueous stream comprising said methylene-bridged polyphenyl polyamines according to the invention comprises the steps of The method further comprises, before bringing the aqueous stream and organic stream in contact with the membrane, the step of wetting the membrane with a liquid having a surface tension of less than 40 mN/m.

Method for removing methylene-bridged polyphenyl polyamines from an aqueous stream

The present invention relates to a process for manufacturing isocyanates from an amine compound. The process comprises the steps of

Process for manufacturing isocyanates

Process for the simultaneous and continuous production of two different mixtures of predominantly 4,4'-MDI and 2,4&#x2032;-MDI in a single-step suspension melt crystallisation process whereby a mixed diisocyanate feed stream [MIx] is used to produce simultaneously two mixed diisocyanate streams [MIy] and [MIz] wherein x=80 to 92, y=97 to 99 and z=60 to 80 preferably x=82 to 88, y=97.2 to 98.5 and z=63 to 70 where x, y and z are percentages by weight of the 4,4&#x2032;-MDI isomer contained in the diisocyanate isomer mixture.

Growing community of inventors

Kessel-lo, Belgium

Johannes Lodewijk Koole