title: POLYURETHANE FLAME RETARDANT FORMULATION
number: WO2012116885
publication date: 7 september 2012 (PCT)
applicant/assignee: Huntsman Polyurethanes
Gist: A PU formulation with a mixture of ammonium polyphosphate and nano metal oxide particles (Mg or Al)
Why it is innovative: While synergistic effects of fire retardant combinations are known and claimed in many patents, the use of very small metal oxide particles together with APP seems to have a real and significant effect.
Posted by Gerhard Bleys on October 31, 2012
https://purpatents.com/2012/10/31/prosmising-fire-retardant-composition-2/
title: COLOR CHANGING THERMOPLASTIC POLYURETHANE FOR SHOES
number: WO2012/118980
publication date: 7 september 2012 (PCT)
applicant/assignee: CROCS inc.
Gist: TPU with colour changing pigments for shoes.
Why it is innovative: Use of thermochromic and photochromic pigments in PU is known, although I am not sure both together have been used. In this case both photochromic and thermochromic pigments are claimed, but as far as I read the claims correctly not together, which might have made it even more fun.
Posted by Gerhard Bleys on October 31, 2012
https://purpatents.com/2012/10/31/prosmising-fire-retardant-composition/
Title: METHOD FOR PRODUCING A POLYURETHANE FOAM AND POLYURETHANE FOAM OBTAINABLE THEREBY
Number: US2012238655
Publication date: 20-9-2012
Applicant/Assignee: Bayer IP
Gist: isocyanate and polyol reacted together with specific surfactante and blowing agent in supercritical state.
Why it is interesting: Heat insulation is a ‘hot’ topic in polyurethane research. One way to improve insulation is to reduce cell size to nano-scale. This material is interesting because it combines both micron-scale cells as nano-scale cells which is claimed to result in improved insulation as well as mechanical properties.
Posted by Gerhard Bleys on October 19, 2012
https://purpatents.com/2012/10/19/pu-foam-with-bimodal-nanoporous-cell-size/
Innovation in Polyurethanes 