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.

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