A foamed isocyanate-based polymer, a mix and process for...

C - Chemistry – Metallurgy – 08 – G

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C08G 18/76 (2006.01) C08B 37/00 (2006.01) C08G 18/40 (2006.01) C08G 18/64 (2006.01) C08J 9/12 (2006.01)

Patent

CA 2749241

The invention relates to a foamed isocyanate -based polymer derived from a reaction mixture comprising an isocyanate, an active hydrogen-containing compound, a blowing agent and a highly branched polysaccharide which is derivatized with at least two esters of different length. Further the invention relates to a mix and a process for the production of isocyanatebased polymer. The mix for the production of a foamed isocyanate-based polymer comprises a mixture of the derivatized polysaccharide of the invention and an active hydrogen-containing compound. The process for producing a foamed isocyanate-based polymer comprises the steps of: contacting an isocyanate, an active hydrogen- containing compound, the derivatized highly branched polysaccharide of the invention and a blowing agent to form a reaction mixture and expanding the reaction mixture to produce the foamed isocyanate-based polymer. The derivatized highly branched polysaccharide of the invention has an active hydrogen functionality of less than 15 and comprises randomly bonded glucopyranose units, having an average number of 10-100 glucose residues.

L'invention concerne un polymère à base d'isocyanate expansé dérivé d'un mélange réactionnel comprenant un isocyanate, un composé contenant de l'hydrogène actif, un agent d'expansion et un polysaccharide hautement ramifié qui est dérivé par au moins deux esters de longueurs différentes. En outre, l'invention concerne un mélange et un procédé pour la production de polymère à base d'isocyanate. Le mélange pour la production d'un polymère à base d'isocyanate expansé comprend un mélange du polysaccharide dérivé de l'invention et un composé contenant de l'hydrogène actif. Le procédé de production d'un polymère à base d'isocyanate expansé comprend les étapes suivantes : mise en contact d'un isocyanate, d'un composé contenant de l'hydrogène actif, du polysaccharide hautement ramifié et dérivé de l'invention et d'un agent d'expansion afin de former un mélange réactionnel, et expansion du mélange réactionnel pour produire le polymère à base d'isocyanate expansé. Le polysaccharide hautement ramifié et dérivé de l'invention a une fonctionnalité hydrogène actif inférieure à 15 et comprend des motifs glucopyranose liés au hasard, comportant un nombre moyen de 10-100 résidus glucose.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

A foamed isocyanate-based polymer, a mix and process for... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with A foamed isocyanate-based polymer, a mix and process for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A foamed isocyanate-based polymer, a mix and process for... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1934142

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.