Basf Se Corporation

Basf Aktiengesellschaft

Peter Huntemann

Udo Rotermund

Christof Grieser-Schmitz

Olaf Jacobmeier

Lars Schoen

Rainer Hensiek

Roland Fabisiak

Maria Thomas

Bernd Schaper

Marion Heinz

Christian Renner

Sabrina Kronig

Ruediger Viereck

Udo Schilling

Wilhelm Lindemann

Annika Halwe-Bommelmann

Antje Huskobla

Lars Schön

Rüdiger Viereck

Lars SCHÖN

The invention relates to the envelopment of a connection of at least two pipes or parts thereof by an open-celled rigid foam, the production of such an envelope and also the use of open-celled rigid foam for protecting connections of two pipes.

Rigid foam envelopment of the connections of pipes

The invention relates to a process for the production of composites, composed of at least one outer layer b) and of an isocyanate-based rigid foam a), where the outer layer b) is moved continuously and the starting material for the isocyanate-based rigid foam a) is applied to the outer layer b), which comprises achieving the application of the liquid starting material for the isocyanate-based rigid foam a) by means of at least one fixed tube c) which has openings f) and which has been placed, with respect to the outer layer b), so as to be parallel to the plane of the outer layer and at right angles to the direction of movement.

Methods for producing composite elements based on foams based on isocyanate

Syntactic polyurethanes are obtainable by reacting a polyisocyanate component a) with a polyol component, the polyol component b) comprising a polyetherpolyol mixture having an average OH number of from 10 to 280 (constituent b1) and an oil based on fatty acids of 6 to 25 carbon atoms or derivatives thereof (constituent b2), in the presence of hollow microspheres c). Furthermore, the syntactic polyurethanes are used for insulating offshore pipes and other parts and equipment used in the offshore sector, and the insulated offshore pipes as such are described.

Syntactic polyurethane containing oil, preferably castor oil

The invention relates to isocyanate adducts which can be prepared by reacting at least one polyisocyanate with compounds having at least two hydrogen atoms which are reactive toward isocyanate groups and have a crystalline content of less than 10 J/g determined by differential scanning calorimetry in accordance with DIN 51 004 at 20 K/min from room temperature to 250&#xb0; C. using a nitrogen flow of 3 l/h as carrier gas and an aromatics content reported as carbon atoms in aromatic rings of less than 31% by weight, based on the total weight of the isocyanate adducts.

Isocyanate adducts

Syntactic polyurethanes are prepared by mixing hollow microspheres with polyurethanes by a process in which, in a first step, the polyurethane system components are reacted and, in a second step, the feeding of the hollow microspheres is effected in a mixing apparatus, the mixing apparatus being free of dead space and comprising

Method for producing syntactic polyurethane

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Stemshorn, Germany

Peter Huntemann