Imperial Chemical Industries Limited

Atlas Europol Spa

Mireille De Witte

Gabriel Verhelst

Tu Pham

Arun Watts

Louis Muller

Alain Parfondry

Mireille B De Witte

Giovanni Parrinello

David Thorpe

Julian Francis Hopper

Eric Huygens

Gian-Carlo Bagaglio

Roberto Frigo

Vabilisetti S Murty

Luc Van Essche

Leo Franciscus Verstrepen

Process for preparing a flexible foam by reacting a polyisocyanate composition having an NCO value of 11-24% by weight with an isocyanate-reactive compound having a number average molecular weight of 1000-12000 using water as blowing agent.

Process for preparing a flexible polyurethane foam

Process for recycling flexible foams by glycolysis and extraction. The glycolysis is conducted by allowing the foam to react with low molecular weight polyols, then allowing the mixture to separate in two phases.

Recycling of flexible foam

Polyisocyanate compositions are provided which comprise the reaction product of a diphenylmethane diisocyanate composition comprising 25 to 70% by weight of 2,4'-diphenylmethane diisocyanate and an isocyanate-reactive polyoxyethylene polyoxypropylene polyahl having an ethylene oxide content of at least 30% by weight, a number average hydroxyl equivalent weight of 700-2000 and an average nominal hydroxyl functionality of 2-6, the reaction product having a free NCO content of 2-31% by weight.

Polyisocyanate compositions and low density flexible polyurethane foams

Process for preparing a flexible foam by reacting a polyisocyanate composition having an NCO value of 11-22% by weight with an isocyanate-reactive compound having a number average molecular weight of 1000-12000 using water as blowing agent.

The invention relates to a liquid isocyanate-containing prepolymer composition having an average isocyanate functionality greater than 2 and an NCO content of from 2 to 15% by weight, as obtainable by reacting an isocyanate reactive polymer having an average nominal functionality of from 2 to 6 with a stoichiometric excess of a diphenylmethane diisocyanate composition containing at least 2% by weight of 2,4'-diphenylmethane diisocyanate and having an average isocyanate functionality in the range from 2 to 2.3. The invention also relates to a method for preparing a polyurethane foam, which comprises reacting such a prepolymer composition with water.

Isocyanate composition and process for making flexible foams therefrom

A method to prepare polyurethane and/or polyurea flexible foams which comprises reacting:

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Merelbeke, Belgium

Mireille B De Witte