Imperial Chemical Industries Limited

Huntsman International LLC

Huntsman Ici Chemicals LLC

Eric Huygens

Gerhard Jozef Bleys

Dirk Gerber

Herman Eugene Germain Moureau

Johan R Derluyn

Jan Willem Leenslag

Berend Eling

Jianming Yu

Anja Anneke Vanhalle

Hans Godelieve Guido Verbeke

Edward F Cassidy

Mireille B De Witte

Hans Godelieve Verbeke

Jan-Willem Leenslag

Johan Robert Derluyn

Leo Franciscus Verstrepen

Luc Van Essche

Peter Frans Eugeen Maria Stroobants

Shpresa Kotaji

Pierre Gilbert Henri Jean Chaffanjon

Koon Yeow Chan

Marc Vandervesse

Stijn Roekaerts

Julien Devos

Herman Eugene Moureau

Hans Verbeke

Isocyanurate-reactive mixture obtained by reacting an anhydride and a polyol; process for making it; polyisocyanate composition comprising this mixture; binder composition comprising such a polyisocyanate composition; the use of such a polyisocyanate composition and/or binder composition for making a polyisocyanurate and such polyisocyanurates.

Mixture obtained by reacting polyol and anhydride and its use in polyisocyanates for making polyisocyanurates

A process for preparing a polyisocyanurate polyurethane material, which process comprises reacting a polyisocyanate and an isocyanate-reactive composition, wherein the reaction is conducted at an isocyanate index of 1600 to 100,000 and in the presence of a trimerization catalyst, wherein the polyisocyanate comprises a) 75-100% by weight of diphenylmethane diisocyanate comprising at least 40%, preferably at least 60% and most preferably at least 85% by weight of 4,4'-diphenylmethane diisocyanate and/or a variant of said diphenylmethane diisocyanate which variant is liquid at 25&#xb0; C. and has an NCO value of at least 20% by weight (polyisocyanate a), and b) 25-0% by weight of another polyisocyanate (polyisocyanate b), the amount of polyisocyanate a) and polyisocyanate b) being calculated on the total amount of this polyisocyanate a) and polyisocyanate b), and wherein the isocyanate-reactive composition comprises a) 80-100% by weight of a polyether polyol having an average nominal functionality of 2-6, an average equivalent weight of 1100-5000 and an oxyethylene (EO) content of 65-100% by weight and b) 20-0% by weight of one or more other isocyanate-reactive compounds, the amount of polyol a) and isocyanate-reactive compound b) being calculated on the total amount of this polyol a) and compound b).

Process for preparing a polyisocyanurate polyurethane material

Isocyanate-terminated prepolymer having an NCO-value of 5-30% by weight and being the reaction product of an excessive amount of diphenylmethane diisocyanate comprising at least 80% by weight of 4,4'-diphenylmethane diisocyanate and a polyoxyethylene-polyoxypropylene polyol having an average molecular weight of 2000-10000, an average nominal hydroxy functionality of 2-6, an oxyethylene content of 21-45% by weight and a structure of the type -PO-PO/EO-EO wherein the PO block comprises 60-90% of the PO and the ratio of tipped EO:random is 3:1 to 1:3, and a process for preparing a flexible foam by reacting in a mould and at an index of 70-120, the above prepolymer or a composition comprising this prepolymer and

Prepolymer, polyol composition and process for making a flexible foam

Process for preparing flexible polyurethane foam by reacting an MDI-based polyisocyanate and a polyether polyol with a high oxyethylene content in a mold.

Process for preparing a flexible polyurethane foam

Process for preparing a polyurethane elastomer having an apparent overall density of more than 150 kg/mcomprising reacting a polyisocyanate and an isocyanate-reactive composition, optionally in the presence of water, wherein the reaction is conducted at an isocyanate index of 85 to 120, the polyisocyanate comprising: a) 80-100% by weight of a diphenylmethane diisocyanate comprising at least 40% by weight of 4,4'-diphenylmethane diisocyanate and/or a derivative of said diphenylmethane diisocyanate which derivative is liquid at 25&#xb0; C. and has an NCO value of at least 20% by weight, and b) 20-0% by weight of another polyisocyanate, and wherein the isocyanate-reactive composition comprises a) 80-100% by weight of a polyether polyol having an average nominal functionality of 2-8, an average equivalent weight of 750-5000, an average molecular weight of 2000-12000, an oxyethylene content of 60-90% by weight and a primary hydroxyl content of 70-100% calculated on the total number of primary and secondary hydroxyl groups in the polyol, b) an isocyanate-reactive chain extender in an amount such that the hard block ratio is less than 0.50 and c) 20-0% by weight of one or more other isocyanate-reactive compounds excluding water, the amount of polyol a) and isocyanate-reactive compound c) being calculated on the total amount of this polyol a) and compound c).

Process for preparing an elastomer

Process for preparing a polyurethane material having no glass transition temperature below 25 C, which process involves using a polyoxyethylene polyoxypropylene polyol having a high oxyethylene content and a polyisocyanate having a high 4,4&prime;-diphenylmethane diisocyanate (4,4&prime;-MDI) content, wherein the reaction is conducted at an isocyanate index of 80 to 140.

Process for preparing a polyurethane material

Novel isocyanate-terminated prepolymers and a process for making flexible polyurethane foams thereof. The prepolymers are made from polyether polyols having a high equivalent weight.

Isocyanate-terminated prepolymers

Process for making molded flexible polyurethane foams MDI-based foams with high resilience using MDI and a polyol composition.

Process for preparing rigid and flexible polyurethane foams by reacting a polyisocyanate and a polyol in the presence of water and CO.sub.2. The foams obtained do not show a major glass transition temperature between -100.degree. C. and +25.degree. C. and have improved air flow properties.

Process for making flexible polyurethane foams

Process for making flexible polyurethane foams using MDI and TDI and a polyol composition comprising dispersed particulate material.

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.

A method for the preparation of flexible polyurethane foams by reacting a polyisocyanate containing at least 85% by weight of 4,4'-diphenylmethane diisocyanate or a liquid variant thereof with a polyol composition comprising at least one poly(oxyethylene-oxyalkylene) polyol having an average nominal hydroxyl functionality of from 2 to 6, a number average hydroxyl equivalent weight of from 1000 to 3000, and an average oxyethylene content of from 50 to 85% by weight and with water in the presence of a catalytically effective amount of an alkali or alkaline earth metal carboxylate salt.

Process for preparing a flexible foam

Process for making a flexible foam by reacting a polyisocyanate composition having an NCO value of 10-25% by weight and 30-150 parts by weight, per 100 parts by weight of polyisocyanate composition, of a polyol composition comprising water at an isocyanate-index of 40-100.

Growing community of inventors

Heverlee, Belgium

Eric Huygens