Process for the biological treatment of polyetheral-carbonated wastewaters
DD294235A5
Method for the treatment of strong acids salpetic acid-containing equipment
DD293602A5
Method for producing highly reactive polyetheralcocools
DD293601A5
Process for the preparation of polyetheral cocools
DD293358A5
Method for stabilizing polyurethane solutions against saeurs
DD293361A5
Method for the production of elastic, light-lighting and light-resistant polyurethane films
DD293362A5
Method for stabilizing polyurethane solutions against flamming protection agents
DD293360A5
Method for producing high quality polymeric films from overlayed polyurethane granules and solutions
HU901877D0
Insulating- and spring-element or clamping element
DD299120A7
Improved two-component polyurethane system for purifying channelization particular tubes
DE4006027A1
Elastic abrasive wheel for surface treatment of steel or plastic - comprises flexible polyurethane foam binder and re-granulated ceramic-bonded silicon carbide or corundum abrasive disc material
DD301515A7
Process for the preparation of melt processible polyurethane elastomers by the reaction extruder technology
DD291080A5
Method of preparing n- [4- (alpha-aralkyl) phenyl] urea
DD291079A5
Process for the preparation of alkylene-bisphenyl hydrogen
DD300522A5
Method for deliberately destroying differently dimensioned mine anchor lines
DD289734A5
Tool for grinding and polishing
DD289733A5
Grinding tool for grinding and polishing interior finishes
