Abstract: The present invention relates to an implant, in particular an intraluminal endoprothesis, comprising a body containing a metallic material, and comprising at least one functional element that is fastened to the body and has a material composition in at least a portion of its volume that differs from the material of the body, the material composition preferably including radio-opaque and/or x-ray opaque material. To effectively prevent accelerated degradation due to the formation of a local cell of the material of the body and the functional element, the at least one functional element includes a first layer at least in the region of its surface where it is bonded to the body, the first layer primarily containing at least one metal oxide. Furthermore, the manufacture of an implant of this type is described.

Abstract: The present invention relates to an implant, in particular an intraluminal endoprothesis, comprising a body containing a metallic material, and comprising at least one functional element that is fastened to the body and has a material composition in at least a portion of its volume that differs from the material of the body, the material composition preferably including radio-opaque and/or x-ray opaque material. To effectively prevent accelerated degradation due to the formation of a local cell of the material of the body and the functional element, the at least one functional element includes a first layer at least in the region of its surface where it is bonded to the body, the first layer primarily containing at least one metal oxide. Furthermore, the manufacture of an implant of this type is described.

Abstract: The present invention relates to a powder coating composition for the production of non-yellowing flexible coatings which is solid below 30.degree. C. and liquid above 120.degree. C. and contains a mixture ofA) a polyisocyanate component whichi) has a content of blocked isocyanate groups (expressed as NCO, molecular weight=42) of 3.0 to 14.0% by weight,ii) has a functionality, based on the blocked isocyanate groups, of 1.9 to 2.3 andiii) and contains at least one .epsilon.

Abstract: The present invention relates to a powder coating composition for the production of matte coatings, containingA) a hydroxyl group-containing component,B) an addition polymerization compound which is based on aliphatic and/or cycloaliphatic diisocyanates and contains uretdione groups,C) a component which contains carboxyl and/or carboxylic acid anhydride groups and is selected fromC1) aliphatic and/or cycloaliphatic dicarboxylic acids containing 4 to 20 carbon atoms,C2) monomeric and/or polymeric anhydrides of the acids C1) which may optionally be modified andC3) aliphatic hydroxycarboxylic acids containing 4 to 18 carbon atoms, andD) a component which contains groups which are reactive with carboxyl and/or carboxylic acid anhydride groups,provided that components A), B), C) and D) are present in amounts such that 0.6 to 1.4 isocyanate groups of component B) are present for each hydroxyl group of component A), 0.3 to 1.

Abstract: The present invention relates to polyaddition compounds that are solid below 40.degree. C. and liquid above 125.degree. C. and contain, based on the weight of the polyaddition compounds,a) 0 to 2% by weight of free isocyanate groups (calculated as NCO; molecular weight=42),b) 3 to 16% by weight of uretdione groups (calculated as C.sub.2 N.sub.2 O.sub.2 ; molecular weight=84),c) 10 to 22% by weight of urethane groups (calculated as --NH--CO--O--; molecular weight=59).d) 0 to 20% by weight of carboxylic add ester groups (calculated as CO--O--; molecular weight=44) ande) of 0 to 25% by weight of carbonate groups (calculated as --O--CO--O--; molecular weight=60),provided that the total content of carboxylic add ester groups and carbonate groups is at least 1% by weight.

Abstract: Polyisocyanate polyaddition products which are solid below 40.degree. C. and liquid above 125.degree. C., contain uretdione and urethane groups and have a content of at least 1 wt. % of urethane groups obtained from the reaction of dimeric diols with isocyanate groups; a method of producing the these products by the reaction of polyisocyanates containing uretdione groups with dimeric diols; and the use of these polyaddition compounds as the starting component in the manufacture of polyurethane plastics, particularly as the cross-linking component in thermally cross-linkable two-component polyurethane powder coating compositions.

Abstract: A powder coating composition for the production of non-yellowing, flexible coatings which contains a mixture of a polyisocyanate component which contains one or more lacquer polyisocyanates having free (unblocked) isocyanate groups bound to primary and/or secondary carbon atoms and a polyol component containing one or more polyhydroxyl compounds selected from polyhydroxy polyurethanes, polyhydroxy polyacrylates and polyhydroxy polyesters, wherein at least 50% of the hydroxyl groups are bound to secondary or tertiary carbon atoms; and its use for coating heat-resistant substrates, in particular as clear coating compositions for automobiles.

Abstract: The present invention relates to a powder coating composition having a glass transition temperature of 20.degree. to 80.degree. C. and containing(A) 56 to 86.9% by weight of a polyacrylate polyol component having a hydroxyl number of 30 to 155 and a glass transition temperature of 30.degree. to 120.degree. C.,(B) 0.1 to 9% by weight of a polyester polyol component having a hydroxyl number of 40 to 180 and a glass transition temperature of -40.degree. to 80.degree. C.,(C) 13 to 35% by weight of a polyisocyanate component having a glass transition temperature of -40.degree. to 60.degree. C.

Abstract: A powder coating composition which is curable at 120.degree. to 150.degree. C. and contains A) one or more copolymers prepared from olefinically unsaturated monomers and containing epoxy groups and optionally hydroxyl groups, B) one or more curing agents containing carboxylic acid or carboxylic acid anhydride groups, and C) one or more polyaddition compounds which contain uretdione groups, have a melting point or range of 40.degree. C. to 120.degree. C. and are prepared from (cyclo)aliphatic diisocyanates; and its use for coating of heat-resistant substrates, especially automotive substrates.

Abstract: The present invention relates to polyisocyanate mixtures which are solid below 40.degree. C. and liquid above 125.degree. C. and which havea) an average isocyanate functionality of at least 2.1,b) a content of free isocyanate groups bonded to tertiary (cyclo)aliphatic carbon atoms (calculated as NCO; molecular weight=42) of 5 to 22 wt. %,c) a urethane group content calculated as --NH--CO--O--; molecular weight=59) of 2 to 30 wt. %,d) an isocyanurate group content (calculated as C.sub.3 N.sub.3 O.sub.3 ; molecular weight=126) of 0 to 30 wt. % ande) a carboxylic acid ester group content (calculated as --CO--O--; molecular weight=44) of 0 to 25 wt. % and/orf) a carbonate group content (calculated as --O--CO--O--; molecular weight=60) of from 0 to 34 wt. %with the proviso that the total amount of ester groups e) and carbonate groups f) is at least 2 wt. %.

Abstract: The present invention relates to a process for the production of powder coating compositions having a glass transition temperature of 20.degree. to 80.degree. C. bya) homogeneously dissolving in an inert solvent or solvent mixture having a boiling point or range between 50.degree. and 150.degree. C.A) a polyol component having a hydroxyl value of 30 to 155 and a glass transition temperature of 30.degree. to 120.degree. C. and containing at least one hydroxy-functional copolymer of olefinically unsaturated monomers,B) a polyisocyanate component containing blocked isocyanate groups, having a glass transition temperature of -45.degree. to +45.degree. C. and containing at least one ketoxime-blocked polyisocyanate andC) a catalyst component containing at least one catalyst for the reaction between blocked isocyanate groups and hydroxyl groups components,wherein components A) and B) are present in an amount which is sufficient to provide an equivalent ratio of blocked isocyanate groups to hydroxyl groups of 0.

Abstract: The device for measuring the internal diameter of tubes 2 consisting of two interconnected measuring units 3 and 4 that are connected to one another. The first measuring unit 3 is formed by a measuring head 9 in conjunction with a displacement transducer 7, which is axially displaceable within a tube 2. The axial displacement of the measuring head 9 is determined by a length measuring device consisting of a friction wheel 25 associated with a rotation transducer. To achieve this, the friction wheel is in functional connection with a flexible tube 24 which is rigidly connected to the measuring head 9. Thus, this measuring device makes it possible to determine internal diameters at two positions located at axially spaced locations from one another in a tube 2.