Title: PROCESS FOR OBTAINING POLYURETHANE FOAMS
Number/Link: GB1381925
Applicant/Assignee: PECHINEY UGINE KUHLMANN
Publication date: 29-01-1975 (priority FR – 1971)
“Gist”: Very soft hydrophilic flexible foam is made from TDI and a combination of a high EO polyol and a ‘conventional’ (hot cure) polyol.
Why it is interesting: Very soft – so called “hypersoft” – foams were prepared form TDI 80/20 and a mixture of polyols consisting of a random 75% EO -25% PO triol and a block 90% PO – 10% EO triol in a ratio of 85:15. (about). The foams were all-water blown and had densities of below 30 kg/m³, which was exceptional for the time.
Denis Hicks
/ December 31, 2013Then dont be modest and I hope you include a few of your own:-). Happy new year!
Geert Bleys
/ December 31, 2013I’ll think about it :-)
A happy new year to you too Denis!
John Duffy
/ December 31, 2013Hi
I love the “classic” category. It shows great respect for the technology and its evolution.
Happy 2014 John Duffy Easterly Research Warminster, PA USA
Geert Bleys
/ December 31, 2013Hi John,
Thank you for your comment. I will try to do at least one “classic” per month from now on.
Have a nice year-end!
Geert