Bayer Aktiengesellschaft

Wolff Walsrode Ag

Novozymes A/s

Other

Genencor International, Inc.

Wolfe Walsrode Ag

Rainhard Koch

Hanns-Peter Muller

Jochen Kalbe

Henrik Lund

Joachim Simon

Martin Riegels

Klaus Szablikowski

Wolfgang Koch

Gunter Weber

Lars Saaby Pedersen

Hanns-Peter M&uuml;ller

Jurgen Engelhardt

Hanns P Muller

J&uuml;rgen Engelhardt

Helmut Reiff

Ralf Dujardin

Harro Traubel

Dirk Schultze

Ralf Timmermann

Gerd-Friedrich Renner

Karl H Pisaric

Ralf Schledjewski

Michael Pirkotsch

Christa Lechelt-Kunze

J&uuml;rgen Reiners

Dirk Jacques Dijkstra

Volkhard Muller

Harro Tr&auml;ubel

Werner Zitzmann

Dirk-Jacques Dijkstra

Volkhard M&uuml;ller

Axel Seitz

Wilfried Hahn

The present invention relates to a process for enzymatic hydrolysis of cyclic oligomers of poly(ethylene terephthalate), which process comprises subjecting the cyclic oligomer to the action of one or more lipolytic and/or biopolyester hydrolytic enzyme(s).

Enzymatic hydrolysis of cyclic oligomers

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

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

Biologically degradable leather

This invention relates to the complete degradation by enzymes of moldings, sheet-like products, coatings, adhesives or foams made of biodegradable polymers. The invention relates in particular to the enzymatic degradation of polyester amides, and of polyester urethanes which contain urea groups.

Degradation of biologically degradable polymers using enzymes

The present invention relates to a method for modifying articles and/or semi-finished products made from polymer resin moulding compositions, wherein said articles and/or semi-finished products, which substantially consist of moulding compositions comprising mixtures of thermoplastic polymers where exhibit good biodegradability and thermoplastic polymers which exhibit poor biodegradability, are subjected to biodegradation.

Method for modifying products or half-stuffs from molding materials consisting of mixtures of thermoplastic synthetic materials

Biological material embedded in hydrogels, a process for the embedding

Degradation of biodegradable polyester amides with enzymes

Polymer blends containing starch and polyurethane

Biodegradable and compostable plastic articles, including flat-shaped

The use of dispersions of urea group-containing polyurethanes based on selected starting materials and crosslinkers leads to the production of fully biodegradable shaped bodies.

Biodegradable and compostable shaped bodies

Thermoplastic and compostable cellulose ether esters with 2-hydroxycarboxylic acids as acid components and mixed esters which, in addition to 2-hydroxycarboxylic acid groups, have further mono-, dicarboxylic acid or carbamate groups.

Compostable and thermoplastic cellulose ether-2-hydroxycarboxylic acid

Mixtures of various starch-degrading enzymes (amylases) which comprise at least one high temperature amylase (HTA) and at least one low temperature amylase (LTA) in an activity ratio of HTA to LTA of 10%:90% to 90%:10% develop at least 60% of their maximum activity in the temperature range from 30.degree. to 90.degree. C. Such mixtures can be diluted with water and treated with customary additives. These mixtures are suitable for desizing textiles sized with starch by treatment of the textiles with the mixtures mentioned and subsequent rinsing.

Enzyme mixtures and processes for desizing textiles sized with starch

Growing community of inventors

Koln, Germany

Rainhard Koch