Bayer Aktiengesellschaft

Wolff Walsrode Ag

Wolff Wolsrode Ag

Hanns-Peter M&uuml;ller

Joachim Simon

Rainhard Koch

Heino M&uuml;ller

Horst Gruttmann

J&uuml;rgen Engelhardt

Manfred Jautelat

Helmut Reiff

Klaus Szablikowski

Harald Pielartzik

Pramod Gupta

Stephan Kirchmeyer

Ulrich Liesenfelder

J&ouml;rg Hofmann

Martin Ullrich

Wolfgang Koch

Carl Casser

Joachim Petzoldt

Manfred Hajek

Wolfgang Kaufhold

Johan Kijlstra

Gunter Weber

Henricus Peerlings

Walter Sch&auml;fer

Gerald Kurek

J&uuml;rgen Meixner

Gerd-Friedrich Renner

Karl H Pisaric

Dirk Storch

Dirk Jacques Dijkstra

J&uuml;rgen Reiners

Harro Tr&auml;ubel

Volkhard M&uuml;ller

Dirk-Jacques Dijkstra

A thermoplastic molding composition that contains a light-resistant aliphatic thermoplastic polyurethane elastomer is disclosed. The composition which largely contains of thermoplastic polyurethanes with high molecular weights and small amounts of thermoplastic polyurethanes with low molecular weights is useful for the preparation of a variety of articles and for use as sinterable composition in powder form.

Light-resistant thermoplastic polyurethanes, a process for their preparation and their use

A water-soluble, biodegradable hydroxyalkyl cellulose-2-hydroxycarboxylic acid ester is disclosed. The hydroxyalkyl cellulose-2-hydroxycarboxylic acid ester has: (i) a molecular degree of substitution of the hydroxyalkyl group of less than 1.5 (MS <1.5); and (ii) a molecular degree of substitution of the 2-hydroxycarboxylic acid group of greater than 0.4 and less than 3 (0.4<MS <3). Also described is a method of preparing the hydroxyalkyl cellulose-2-hydroxycarboxylic acid ester, and methods of using it, e.g., as a consistency regulator in at least one of foodstuffs, cosmetics, building materials, paints and strippers.

Water-soluble biodegradable hydroxyalkyl cellulose-2-hydroxycarboxylic acid esters which can flocculate

The present invention relates to coating compositions comprising a mixture of at least two aqueous, anionic polyurethane polyurea dispersions A and B, wherein dispersion A as a dry film has a TG in the range from &minus;30&deg; C., to &minus;45&deg; and dispersion B as a dry film has a first TG in the range from &minus;30&deg; C. to &minus;45&deg; C. and a second TG in the range from &plus;45&deg; C. to &plus;60&deg; C., and the mixture of A and B as a dry film has only one TG in the range from &minus;30&deg; C. to &minus;45&deg; C.

Coating composition comprising diverse anionic polyurethane-polyurea dispersions

The present invention relates to a process for the preparation of novel, partially crystalline polyether polyols with a functionality of &gE;2, an average molecular weight M of 500 to 100,000 and a molar proportion of isotactic triads determining the crystallinity of >28%. The new polyether polyols are prepared by polymerizing alkylene oxides in the presence of a bimetallic :-oxoalkoxide modified with hydroxyl compounds.

Method for producing partially crystalline polyether polyols

The present invention relates to a substrate with at least one section having a surface decoration and a coating between the surface and the decoration. The coating can be peeled from the surface, and is prepared from an aqueous anionic polyurethane-polyurea dispersion which are free from co-solvents.

Substrate having a section with a peelable coating and a surface decoration

A process for the production of thermoplastic polyurethane elastomer is disclosed. The process entails (a) introducing and homogeneously mixing in a first static mixer (A) an isocyanate and (B) a mixture of compounds having an average of 1.8 to 3.0 Zerewitinoff active hydrogen atoms having a molecular weight of 400 to 10000 with and chain extenders having an average of 1.8 to 3.0 Zerewitinoff active hydrogen atoms and a molecular weight of 62 to 400 and optional auxiliaries to form a substantially unreacted mixture and (b) reacting said substantially unreacted mixture in a second static mixer to form thermoplastic polyurethane elastomer. The elastomer thus produced has improved mechanical properties and is suitable for the production of moldings.

Thermoplastic polyurethane elastomers

Thermoplastic material consisting of aliphatic carbamic acid derivatives of polysaccharides and low-molecular urea derivatives as well as a process for their preparation and use of the same

The present invention relates to novel thermoplastic materials based on polysaccharide ethers which are simultaneously substituted by carboxylic acid ester groups and carbamate groups, together with mixtures of such derivatives with low molecular weight aliphatic urea derivatives.

Polysaccharide-based thermoplastic material, process for preparing the same and method of use thereof

Biologically degradable leather

The present invention relates to compounds selected from formula I

Cycloaliphatic compounds

Growing community of inventors

Odenthal, Germany

Hanns-Peter Müller

Growing community of inventors

Odenthal, Germany

Hanns-Peter M&uuml;ller

Hanns-Peter Müller