The present disclosure describes multi-fluid kits for three-dimensional printing, three-dimensional printing kits, and systems for three-dimensional printing. In one example, a multi-fluid kit for three-dimensional printing can include a fusing agent, a solubilizing agent, and a detailing agent. The fusing agent can include water and an electromagnetic radiation absorber. The electromagnetic radiation absorber can absorb radiation energy and convert the radiation energy to heat. The solubilizing agent can include benzyl alcohol, an organic cosolvent, and water. The detailing agent can include a detailing compound.

The present disclosure concerns a powder fastener retention material for application to metal sub-miniature fasteners formulated from a nylon 11 powder having a median average particle size by volume of more than 67 and less than 80 micrometers, a metal sub-miniature fastener having a patch of the reusable fastener retention material, a method for forming a patch of the fastener retention material on a metal sub-miniature fastener, a method of forming a reusable fastener retention patch on a region of a metal sub-miniature fastener, and a kit of parts comprising (a) a metal sub-miniature fastener, and (b) a powder retention material powder.

The present disclosure concerns a powder fastener retention material for application to metal sub-miniature fasteners formulated from a nylon 11 powder having a median average particle size by volume of more than 67 and less than 80 micrometers, a metal sub-miniature fastener having a patch of the reusable fastener retention material, a method for forming a patch of the fastener retention material on a metal sub-miniature fastener, a method of forming a reusable fastener retention patch on a region of a metal sub-miniature fastener, and a kit of parts comprising (a) a metal sub-miniature fastener, and (b) a powder retention material powder.

Methods and high visible-light reflective reactive resinous coatings that increase visible light inside a grow house and enhance plant growth therein. A pre-dispersion of a resin, zinc oxide, one or more fillers, and retroreflective microspheres, is mixed with a one-part or two-part reactive coating system to provide a high-reflectance reactive resin coating composition. At least one or more layers of the high-reflectance reactive resin coating composition is coated onto a substrate inside the grow house and allowed to cure. The cured high-reflectance reactive resin layer has a light reflectance increase up to 60% in lumens increasing an amount of visible light inside the grow house to enhance plant growth.

Methods and high visible-light reflective reactive resinous coatings that increase visible light inside a grow house and enhance plant growth therein. A pre-dispersion of a resin, zinc oxide, one or more fillers, and retroreflective microspheres, is mixed with a one-part or two-part reactive coating system to provide a high-reflectance reactive resin coating composition. At least one or more layers of the high-reflectance reactive resin coating composition is coated onto a substrate inside the grow house and allowed to cure. The cured high-reflectance reactive resin layer has a light reflectance increase up to 60% in lumens increasing an amount of visible light inside the grow house to enhance plant growth.

The present invention concerns a polyelectrolyte coating comprising at least one polycationic layer consisting of at least one polycation consisting of n repetitive units having the formula (1) and at least one polyanionic layer consisting of hyaluronic acid. The polyelectrolyte coating has a biocidal activity and the invention thus further refers to the use of said polyelectrolyte coating for producing a device, in particular a bacteriostatic medical device, more particularly an implantable device, comprising said polyelectrolyte coating, and a method for preparing said device and a kit.

The present invention concerns a polyelectrolyte coating comprising at least one polycationic layer consisting of at least one polycation consisting of n repetitive units having the formula (1) and at least one polyanionic layer consisting of hyaluronic acid. The polyelectrolyte coating has a biocidal activity and the invention thus further refers to the use of said polyelectrolyte coating for producing a device, in particular a bacteriostatic medical device, more particularly an implantable device, comprising said polyelectrolyte coating, and a method for preparing said device and a kit.

The invention provides a non-particulate cross-linked poly--lysine polymer. The poly--lysine and cross linker are linked by amide bonds and may the cross linker has at least two functional groups capable of reacting with an alpha carbon amine of poly--lysine. The polymer is suitably insoluble in water and other solvents and is provided in macro form for example a sheet, article or fiber. The macro form polymer is useful in a wide range of applications including wound treatment, as a medical diagnostic comprising a particulate support and a functional material bound or retained by the support and solid phase synthesis of peptides, oligonucleotides, oligosaccharides, immobilisation of species, cell culturing and in chromatographic separation.

The invention provides a non-particulate cross-linked poly--lysine polymer. The poly--lysine and cross linker are linked by amide bonds and may the cross linker has at least two functional groups capable of reacting with an alpha carbon amine of poly--lysine. The polymer is suitably insoluble in water and other solvents and is provided in macro form for example a sheet, article or fiber. The macro form polymer is useful in a wide range of applications including wound treatment, as a medical diagnostic comprising a particulate support and a functional material bound or retained by the support and solid phase synthesis of peptides, oligonucleotides, oligosaccharides, immobilisation of species, cell culturing and in chromatographic separation.

A three-dimensional printing kit can include a polymer build material and a fusing agent. The polymer build material can include from about 80 wt % to about 100 wt % polymeric particles. The fusing agent can include an aqueous liquid vehicle, an electromagnetic radiation absorber to absorb radiation energy and convert the radiation energy to heat, and an endothermic decomposition compound that can undergo thermal decomposition at a temperature ranging from about 60? C. to about 400? C.