| Patent Number |
Title Of Patent |
Date Issued |
| 7553970 |
Process for preparing 3-heteroaryl-3-hydroxypropanoic acid derivatives |
June 30, 2009 |
| The invention relates to a process for preparing enantiomer-enriched 3-heteroaryl-3-hydroxypropanoic acid derivatives and 3-heteroaryl-1-aminopropan-3-ols, and to their use. |
| 6559300 |
Water-soluble biodegradable hydroxyalkyl cellulose-2-hydroxycarboxylic acid esters which can flo |
May 6, 2003 |
| 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.sub.hydroxyalkyl <1.5); and (ii) a mo |
| 6548278 |
Enzymatic hydrolysis of cyclic oligomers |
April 15, 2003 |
| 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). |
| 6403787 |
Thermoplastic material consisting of aliphatic carbamic acid derivatives of polysaccharides and |
June 11, 2002 |
| The present invention relates to evenly substituted polysaccharide derivatives having the general structure:wherein polysaccharide--O represents a substituted or unsubstituted polysaccharide unit and R is a substituent of a polysaccharide-OH group having either the structureor the struct |
| 6255451 |
Degradation of biologically degradable polymers using enzymes |
July 3, 2001 |
| 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 |
| 6254644 |
Biologically degradable leather |
July 3, 2001 |
| The present invention relates to a process for preparing leather by(I) tanning a pelt with(a) an aldehyde, or(b) a bisulphite-blocked polyisocyanate;(II) optionally, retanning the pelt with(a) a polyaspartic acid, a salt of a polyaspartic acid, a polyaspartic acid anhydride, or a mixture thereof |
| 6251968 |
Method for modifying products or half-stuffs from molding materials consisting of mixtures of th |
June 26, 2001 |
| 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 |
| 6184010 |
Enzymatic hydrolysis of cyclic oligomers |
February 6, 2001 |
| 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). |
| 6164012 |
Biological material embedded in hydrogels, a process for the embedding thereof, and its use as a |
December 26, 2000 |
| The invention relates to a completely biodegradable hydrogel comprising polyester polyurethane polyurea containing urea groups as well as polysaccharides and/or their derivatives, the hydrogel containing plant material capable of dividing. The invention also relates to a process for |
| 6071711 |
Degradation of biodegradable polyester amides with enzymes |
June 6, 2000 |
| A method is disclosed for the enzymatic degradation of polyester amides. The method involves mixing polyester amides with esterase or protease enzymes in aqueous solution. |
| 6008276 |
Polymer blends containing starch and polyurethane |
December 28, 1999 |
| Thermoplastically moldable, biodegradable, starch-containing polymer blends consisting essentially ofA) 100 parts by weight of anhydrous starch,B) from 0.1 to 70 parts by weight of polyurethane containing urea groups and based on selected starting materials,C) from 0.5 to 70 parts by weight |
| 5961906 |
Biodegradable and compostable plastic articles, including flat-shaped articles |
October 5, 1999 |
| The use of dispersions of polyurethanes containing urea groups and based on selected starting materials, optionally via the intermediate stage of granules obtained by spray drying the dispersions, for the production of fully biodegradable shaped bodies. |
| 5898049 |
Biodegradable and compostable shaped bodies |
April 27, 1999 |
| 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. |
| 5861506 |
Compostable and thermoplastic cellulose ether-2-hydroxycarboxylic acid esters and mixed esters |
January 19, 1999 |
| 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. |
| 5769900 |
Enzyme mixtures and processes for desizing textiles sized with starch |
June 23, 1998 |
| 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 ran |
| 5644020 |
Thermoplastically processible and biodegradable aliphatic polyesteramides |
July 1, 1997 |
| The invention relates to thermoplastically processible aliphatic polyesteramides which are biodegradable (compostable). |
| 5639865 |
Thermoplastic biodegradable polysaccharide derivatives, process for the manufacture thereof and |
June 17, 1997 |
| The present invention relates to novel thermoplastic, biodegradable polysaccharide ether esters, such as for example cellulose ether esters or starch ether esters, and to the production of such graft copolymers from polysaccharides, epoxides and dicarboxylic acid anhydrides and to the us |
| 5466794 |
Thermoplastic cellulose ether ester graft copolymers and process for their production |
November 14, 1995 |
| The present invention relates to novel thermoplastic, water-insoluble cellulose hydroxyalkyl hydroxycarboxylic acid esters of the general structurewhere Cell--O is the substituted OH group of a polymeric cellulose unit and R is either a monomeric and/or polymeric hydroxyalkylether hy |
| 5466794 |
Thermoplastic cellulose ether ester graft copolymers and process for their production |
November 14, 1995 |
| The present invention relates to novel thermoplastic, water-insoluble cellulose hydroxyalkyl hydroxycarboxylic acid esters of the general structurewhere Cell--O is the substituted OH group of a polymeric cellulose unit and R is either a monomeric and/or polymeric hydroxyalkylether hy |
