Covestro Deutschland Ag

Bayer Aktiengesellschaft

Covestro Intellectual Property Gmbh & Co. Kg

Bayer Intellectual Property Gmbh

Rolf William Albach

Petra Venner

Monika Haselbach

Hartmut Nefzger

Joachim Wagner

Peter Jähn

Joern Beaujean

Juan Cirujeda-Ranzenberger

Jacqueline Kusan-Bindels

Dagmar Ulbrich

Hermann-Josef Kirschbaum

Manfred Jautelat

Dirk Achten

Jun Li

Michael Brockelt

Torsten Hagen

Eduard Mayer

Torsten Heinemann

Michael Ehlers

Lutz Böhnke

Ling Shi

Nicole Welsch

Markus Meuresch

Annika Stute

Harald Knaup

Lutz Boehnke

Frank Hahn

Rebecca Alina Heil

Harald Fietz

Dorothee Clasen

Sascha Praet

Adam Pajonk

The invention relates to flame-proofed polyurethane hard foam material or polyurethane/polyisocyanurate hard foam material (designated below individually or jointly also as 'PUR/PIR hard foam material') comprising phosphinates (also hypophosphite), and to a method for producing PUR/PIR hard foam materials through the implementation of a reaction mixture containing A1 an isocyanate-reactive component, A2 propellant, A3 catalyst, A4 optionally additive, A5 flame-proofing agent, B an isocyanate component, characterised in that the flame-proofing agent A5 contains a phosphine according to the formula (I)M[(R)PO], where R=in each case stands for H, C1- to C4-(hydroxy-)alkyl group or benzyl group, M=an element of the main groups 1 to 3, wherein hydrogen is excepted, and n=the number of the main group of M, and the proportion of the phosphine according to the formula (I) is 0.1 to 15 wt %, based on the total mass of components A1 to A5.

Phosphinate as flame-proofing additive for PUR/PIR hard foam material

The present invention relates to a method for producing flexible polyurethane foams based on polyoxymethylene-polyoxyalkylene block copolymers. The invention also relates to the use of the flexible polyurethane foams thus produced and their use for producing furniture upholstery, textile inlays, mattresses, automobile seats, headrests, armrests, sponges, foam sheets for use in automobile parts such as roof linings, door panel upholstery, seat covers and technical components. The invention finally relates to a two-component system for producing flexible polyurethane foams.

Flexible polyurethane foams based on polyoxymethylene-polyoxyalkylene block copolymers

A method for producing a foam body () having an internal structure (), comprising the steps: I) selecting an internal structure () to be formed in the foam body (), the structure comprising a first polymer material; II) providing a foam body (), the foam body () comprising a second polymer material which is different to the first polymer material; III) injecting, by means of an injection means (), a predefined amount of a melt of the first polymer material or a predefined amount of a reaction mixture () which reacts to form the first polymer material at a predefined location inside the foam body (), corresponding to a volume element of the internal structure (); IV) repeating step III) for further predefined locations inside the foam body (), corresponding to further volume elements of the internal structure (), until the internal structure () is formed. The invention also relates to a foam body () which has an internal structure () and is obtainable by the method according to the invention.

Method for producing a foam body having an internal structure

The invention relates to flame-retardant flexible polyurethane foams with phosphazene and to methods for producing PUR flexible foams by reacting a component A containing: A1, an isocyanate-reactive component, A2, a propellant containing water, A3, optionally auxiliary agents and additives, and A4, a flame retardant, with B, an isocyanate component. The invention is characterized in that the flame retardant A4 contains a phosphazene according to the formula (I): [PNX] (I), where X independently of one another represents O-aryl or NR-aryl, at least one aryl group is substituted, X can represent a bridge, R is selected from the group of H, C1-C4 alkyl, and aryl, and m represents a number from 1 to 5, particularly preferably 3 or 4, k depends on m and represents a number from 0 to 2m, and the phosphazene does not have any groups which are reactive towards isocyanates.

Flexible foam with halogen-free flame retardant

The present invention relates to predominantly (&#x3e;50 vol %) open-cell (to DIN ISO 4590-5 86), cold-deformable, rigid polyurethane foams which possess high acoustic absorption and a uniform cell structure and which are suitable for producing automotive interior trim, more particularly roof linings and pillar trim.

Rigid polyurethane foams with high acoustic absorption

The invention relates to composite elements comprising a thermoplastic polymer and an adjacent polyurethane bonded thereto, to a process for production thereof and to the use thereof.

Composite elements composed from thermoplastic polymers and polyurethanes, and process for production thereof

The present invention relates to predominantly open-cell, cold-deformable, rigid polyurethane foams which possess a uniform cell structure with similar cell sizes and similar physical properties, more particularly a similar open-cell content. These foams are suitable for producing automotive interior trim, more particularly roof linings and pillar trim.

Rigid polyurethane foams with uniform cell size distribution and homogeneous open-cell content

Semi-rigid polyurethane foams having a density of 90 to 180 kg/mand a compressive strength of 20 to 95 kPa are produced by reacting a polyisocyanate with an isocyanate-reactive component that includes an o-toluenediamine initiated polyether polyol. These foams are particularly useful as composites for automotive interior components.

Semi-rigid polyurethane foams and processes for their production and use

The invention relates to flame resistant rigid foams and formulations useful for the production thereof. The polyol formulation must include at least one substance which is inert with respect to isocyanates, does not deplete the ozone layer and has a boiling point below 55&#xb0; C. and a reaction product of at least one compound with an aromatic ring, at least one aldehyde or ketone and at least one primary or secondary amine. This polyol formulation is reacted with an isocyanate, optionally with other commonly used additives, to produce rigid flame resistant foams.

Flame resistant rigid foams and formulations for the production thereof

This invention relates to an apparatus and a process for rapidly and accurately dispensing fluids, in which at least one component is dispensed into the reaction vessel in two or three stages. In this process, the amount of fluid dispensed in the second and third stages is determined on the basis of the mass flow rate calculated in the preceding sub-step.

Process and apparatus for dispensing fluids

Rapid and efficient production and examination of formulations for polyurethane foams using only small amounts of materials are achieved by allowing the foam-forming mixture to foam in a container, preparing disks from sections of the container in which the foam is present and removing a plurality of cylindrical samples having substantially the same density from the disk.

Screening process for the production and characterization of polyurethane foam materials

The invention relates to foam having an apparent density of less than 100 kg/m , in which water is predominantly used as the blowing agent, and to products that contain such foams. The mentioned foams have a large proportion of open cells (>80%).

Water-blown foams of low apparent density

Six-membered ring carbocycles of the formula (II) can be prepared by ring hydrogenation of aromatic compounds of the formula (I)

Growing community of inventors

Kö'ln, Germany

Rolf William Albach