Abstract: The invention relates to a process for the preparation of polyaddition products containing uretdione groups, prepared from a polyisocyanate-uretdione having at least two free isocyanate groups, diols and, if desired, monoalcohols or monoamines, in which the polyaddition products containing uretdione groups are prepared by a solvent-free and continuous procedure which is carried out in an intensive kneading apparatus/extruder. The invention also relates to the use of polyaddition products containing uretdione groups for PUR powder coatings and for solvent-containing, one-component stoving enamels.

Abstract: The invention relates to a process for the preparation of polyaddition products containing uretdione groups, prepared from a polyisocyanate-uretdione having at least two free isocyanate groups, diols and, if desired, monoalcohols or monoamines, in which the polyaddition products containing uretdione groups are prepared by a solvent-free and continuous procedure which is carried out in an intensive kneading apparatus/extruder.

Abstract: The invention relates to a process for the preparation of totally or partially blocked polyisocyanates based on a blocking agent and on a polyisocyanate containing at least two free NCO groups, if desired in the presence of a chain extender, in which the totally or partially blocked polyisocyanates are prepared by a solvent-free and continuous procedure. This reaction is carried out in a static mixer or intensive kneading apparatus or extruder. The invention furthermore relates to the use of the totally or partially blocked polyisocyanates for PUR powder coatings and solvent-containing, one-component PUR stoving enamels.

Abstract: The invention relates to a process for the preparation of totally or partially blocked polyisocyanates based on a blocking agent and on a polyisocyanate containing at least two free NCO groups, if desired in the presence of a chain extender, in which the totally or partially blocked polyisocyanates are prepared by a solvent-free and continuous procedure. This reaction is carried out in a static mixer or intensive kneading apparatus or extruder. The invention furthermore relates to the use of the totally or partially blocked polyisocyanates for PUR powder coatings and solvent-containing, one-component PUR stoving enamels.

Abstract: The invention relates to a process for the preparation of totally or partially blocked polyisocyanates based on a blocking agent and on a polyisocyanate containing at least two free NCO groups, if desired in the presence of a chain extender, in which the totally or partially blocked polyisocyanates are prepared by a solvent-free and continuous procedure. This reaction is carried out in a static mixer or intensive kneading apparatus or extruder. The invention furthermore relates to the use of the totally or partially blocked polyisocyanates for PUR powder coatings and solvent-containing, one-component PUR stoving enamels.

Abstract: Copolyamides based on dicarboxylic acids, diamines and omega amino carboxylic acids or lactams are used as thermoplastic adhesives to heat-seal especially siliconized textiles. The copolymers used consist of 20 to 80% by weight of one or more aliphatic omega amino carboxylic acids or lactams having 6 to 12 carbon atoms in the chain and 80 to 20% by weight of equimolar mixtures of one or more aliphatic dicarboxylic acids having 6 to 12 carbon atoms and aliphatic alpha-omega diamines and possibly cycloaliphatic diamines having 6 to 12 carbon atoms, at least 30% by weight of these diamines consisting of singly branched aliphatic diamines having 6 carbon atoms.

Abstract: A device for the fast changing of the operating method of field spraying units on wheels, wherein the field spraying unit has a socket and an attachment unit is connected thereto via a quick-acting coupling having a first coupling part with a universal nozzle and a prefilter, the attachment unit being connected with a second coupling part.

Abstract: Transparent polyamides have repeating structural units of the formula--HN--R--NH--OC--R'--CO--wherein R' is the hydrocarbon radical of terephthalic acid or isophthalic acid and R comprises 60-95 mole percent of a divalent hydrocarbon radical including 5-methylnonamethylene, 2,4-dimethyloctamethylene and 2,4,6-trimethylheptamethylene and 40-5 mole percent of a cyclic divalent hydrocarbon radical of the formula ##STR1## The polyamides so prepared can be used for building components and for fibers and sheets.

Abstract: A polyamide copolymer, useful as a melt adhesive especially for textiles, produced from the following monomers1. An unbranched aliphatic dicarboxylic acid with 6-20 C-atoms;2. A diamine mixture consisting of(a) 20-80 mol percent, unbranched aliphatic diamines with 6-20 C-atoms; and(b) 80-20 mol percent branched aliphatic and/or cycloaliphatic diamines;said copolymer having a molecular weight of 2000-40000.

Abstract: A polyamide copolymer, useful as a melt adhesive especially for textiles, produced from the following monomers1. An unbranched aliphatic dicarboxylic acid with 6-20 C-atoms;2. A diamine mixture consisting of(a) 20-80 mol percent, unbranched aliphatic diamines with 6-20 C-atoms; and(b) 80-20 mol percent branched aliphatic and/or cycloaliphatic diamines;said copolymer having a molecular weight of 2000-40000.

Abstract: Molding method and polyadducts for molding objects and coatings from 1,2-epoxy compounds having more than one epoxy group in the molecule and ureas having the formula: ##STR1## wherein N .gtoreq. 1,R' is an alkylene or arylene radical,R" is hydrogen and at least one radical from the group of ##STR2## THE GROUP ##STR3## R'" being the same or different radical from the group of hydrogen and alkyl, X being an R'"OOC--, R'".sub.2 NOC-- or NC-- radical and R"" being alkyl or aryl.