Basf Se Corporation

Julia Liese

Frank Prissok

Berend Eling

Andre Kamm

Stefan Marx

Dejan Petrovic

Daniel Freidank

Hendrik Wagner

Karl R Gust

Julio Albuerne

Stefan Bokern

Markus Schütte

Wei Leng

Stefanie Clade

Sebastian Hartwig

Thomas Mathieu

Ragnar Stoll

Martin Hufnagel

Annika Habicht

Martin Linnenbrink

Alvaro Gordillo Bolonio

Paul McCloud

Sylvia Spreen

Described herein is a process for preparing a polyurethane-polyisocyanurate compound by mixing a) at least one polyisocyanate; b) a mixture (M); c) at least one compound including one or more epoxide groups; d) at least one aliphatic polyol (P1) having a high weight average molecular weight; e) at least one polyol (P2) having a low weight average molecular weight; f) at least one compatibilizer; and, optionally, g) fillers and further additives to form a reaction mixture (RM); and reacting the mixture (RM) to give the polyurethane-polyisocyanurate compound. Also described herein are a polyurethane-polyisocyanurate compound obtainable by the process and a method of using the polyurethane-polyisocyanurate compound for producing bodywork components for vehicles.

Polyurethane-polyisocyanurate compound with outstanding mechanical properties

Described herein is a process for preparing a polyurethane elastomer including the steps of (A) preparing an isocyanate prepolymer (a), where the isocyanate prepolymer has an isocyanate content in the range of ≥1 wt.-% to ≤9 wt.-%, and (B) preparing a reaction mixture by mixing at least one epoxy compound (b) with the isocyanate prepolymer (a) in presence of at least one catalyst (c), and where the amount of the alkali metal or alkaline earth metal salt is 0.00001 to 0.1 mol per kg of the total weight of the isocyanate prepolymer (a), the epoxy compound (b) and the catalyst (c), and heating the mixture to at least 80° C. to obtain the polyurethane elastomer. Also described herein are a polyurethane elastomer obtained by the process and a method of using the polyurethane elastomer as part of a roller or as a sealant.

Process for producing polyurethane-polyisocyanurate elastomers, sealing materials and adhesives having a long pot life

The present invention relates to thermoplastic polyurethanes obtainable or obtained by reaction of at least one aliphatic polyisocyanate; at least one chain extender; and at least one polyol composition, where the polyol composition comprises a polyol selected from the group consisting of polyetherols and at least one bisphenol derivative selected from the group consisting of bisphenol A derivatives with a molecular weight Mw&#x3e;315 g/mol and bisphenol S derivatives with a molecular weight Mw&#x3e;315 g/mol, where at least one of the OH groups of the bisphenol derivative is alkoxylated, and to processes for producing such thermoplastic polyurethanes and to the use of a thermoplastic polyurethane according to the invention for producing extrusion products, films and moldings.

Methods for producing transparent, thermoplastic polyurethane having high mechanical strength and hardness

A process for producing a polyurethane-coated conduit element includes mixing a) a mixture of aromatic and aliphatic polyisocyanate with, b) at least one polymeric compound having at least two hydrogen atoms which are reactive toward isocyanate, c) at least one chain extender, d) a catalyst, and e) optionally at least one other auxiliary, additive, or both, to form a reaction mixture; applying the reaction mixture to a conduit element; and allowing the reaction mixture to react to form a polyurethane layer. The polyurethane-coating conduit element is suitable for maritime applications in the oil and gas industry, which polyurethane has improved hydrolysis stability at high temperatures and nevertheless satisfies the high mechanical demands in the oil and gas industry.

Hydrolysis-stable polyurethane for coating elements in maritime applications

The present invention relates to a process for producing pipelines with heat-storing properties, in which a) organic polyisocyanate is mixed with b) at least one polymeric compound having at least two isocyanate-reactive hydrogen atoms, c) optionally chain extender and/or crosslinker, d) catalyst, e) wax and f) optionally other assistants and/or additives, to give a first reaction mixture, and the first reaction mixture is applied to a pipe and allowed to react fully to give a first polyurethane layer. The present invention further relates to a pipeline with heat-storing properties obtainable by such a process.

Pipeline with heat-storing properties

Growing community of inventors

Bremen, Germany

Julia Liese