Imperial Chemical Industries Limited

Anthony Cunningham

Berend Eling

Jan Willem Leenslag

Rik De Vos

David Randall

Martin C Barker

James P Brown

Chris Debien

Process for preparing a flexible polyurethane foam by reacting a polyisocyanate and two different polyols under foam forming conditions so as to prepare a rigid foam and by crushing the rigid foam so obtained. Flexible foams are obtained which do not show a major glass transition temperature between &minus;100&deg; C. and &plus;25&deg; C.

Flexible polyurethane foams

Process for preparing a flexible polyurethane foam by reacting a polyisocyanate and two different polyols under foam forming conditions so as to prepare a rigid foam and by crushing the rigid foam so obtained. Flexible foams are obtained which do not show a major glass transition temperature between -100.degree. C. and +25.degree. C.

A process for the preparation of a fine celled, closed celled rigid polyurethane or urethane-modified polyisocyanate foam is disclosed which comprises reacting a polyfunctional isocyanate-reactive composition with a polyisocyanate composition, characterized in that the foam-forming composition comprises carbon black.

Process for rigid polyurethane foams

Polyisocyanate composition comprising an organo clay and a cyclic alkylene carbonate. The composition is useful for wood-binding, preparing polyurethanes and rigid and flexible polyurethane foams.

Polyisocyanate composition

Novel compositions comprising isocyanate-reactive hydrogen containing compounds, an organo clay and a cyclic alkylene carbonate. The compositions are useful for making flexible polyurethane foams and rigid polyurethane and polyisocyanurate foams.

Novel composition comprising isocyanate-reactive hydrogen-containing

Polyisocyanate compositions and foam comprising MDI, polymeric MDI, and

A catalyst system useful in the preparation of rigid foams containing urethane and isocyanurate groups comprises an alkali metal or tertraalkyl ammonium carboxylate, a group IIA metal carboxylate and, optionally, an amine co-catalyst.

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Bertem, Belgium

Anthony Cunningham