Other

Microplastic Corp.

Secans Ag

Microplastic Rop.

Philipp Schaefer

Helmut Schaefer

Carsten Picker

In a process for dressing a substantially flat substrate having on at least one side a rough surface fibers protruding therefrom, there is first heated a support member, the upper side of which consists of silicone rubber having anti-adhesive properties and comprises small recesses for transmitting a pattern to said dressing, whereupon a first aqueous dispersion of synthetic plastics material is applied onto the upper side of this support member for forming a first layer of the dressing. Subsequently, this support member is heated from the bottom side located opposite the upper side of the support member at least till solidification of the first layer. Subsequently a second aqueous dispersion of synthetic plastics material is applied onto the solidified first layer or onto the rough surface of the substrate, said second dispersion forming a second layer of the dressing when having become solidified. In the following, the substrate is placed with its rough surface onto the solidified first layer, the applied second aqueous dispersion of synthetic plastics material still being in a wet stage. Subsequently, the support member is heated from its bottom side and a pressure is applied onto the upper side of the substrate during a time interval of at least 10 seconds, whereby the second aqueous dispersion of synthetic plastics material becomes solified. Subsequently, the substrate provided with the dressing is removed from the support member.

Process for dressing a substantially flat substrate such as split

A dressed leather is provided which comprises a split leather having one side from which fibers protrude, a first layer of solidified aqueous dispersion having a thickness between 0.07 mm and 0.22 mm of a synthetic plastics material in which the fibers are completely immersed on the one side, and a second layer of a synthetic plastics material of generally the same thickness of the first layer bonded to the first layer and having turned away therefrom a textured or non-textured surface. Additionally, there may be a finish layer overlying the textured or non-textured surface of the second layer. The split leather is substantially free of the dispersion except at the fibers.

Imitation dressed split leather

A dressed leather comprises a split leather having one side from which fibers protrude, a first layer of a solidified aqueous dispersion having a thickness between 0.07 mm and 0.22 mm of a synthetic plastics material in which the fibers are completely immersed on the one side, a second layer of a synthetic plastics material of generally the same thickness as the first layer bonded to the first layer and having turned away therefrom a textured surface, and a finish layer overlying the textured surface of the second layer. The split leather is substantially free of the dispersion except at the fibers.

Dressed split leather

An insole for shoes, with which, after having made a connection, preferably by sewing, between the insole and the shoe upper, a body of polyurethane forming the running sole and/or the foot bed is applied to the bottom side of the insole by foaming operation, consists of a fleece substantially formed of synthetic fibres and having arranged therein a reinforcing insert approximately extending in parallel relation to the upper side of the insole. At least the upper portion of the fleece, which is adjacent the upper side of the insole on which rests the foot, is impregnated with a dispersion or emulsion containing at least 1 percent by weight of hollow microspheres, the thin shell of which consists of a vinylidene chloride copolymer and the hollow core of which contains a gas. The hollow microspheres can already be present in the dispersion or emulsion prior to the impregnating step, it is, however, also possible to provide within the dispersion or emulsion compact particles from which are, after the impregnating step, formed the hollow microspheres in situ by supplying heat.

Process for producing an insole for shoes

Insole for shoes

A foamed material, which is adapting under pressure to the shape of parts, particularly of parts of the human body, but which on pressure relief again returns to a vast extent and after a certain restoring time into the original shape, consists of the following constituents:

Synthetic-resin body support material

An elastic molded body comprising a cell structure consists of an elastic synthetic plastics material produced by a polyaddition reaction between a liquid diisocyanate or polyisocyanate and a reactant containing at least 18 percent by weight polybutadiene. Elastic hollow microspheres having thin shells consisting of a vinylidene chloride copolymer are embedded within this synthetic plastics material and are firmly an unseparably connected with the elastomeric synthetic plastics material, the hollow microspheres, the interior of which contains a gas, forming closed cells within the synthetic plastics material. These hollow microspheres can be formed in situ within the synthetic plastics material when producing the molded body by inflating compact particles of a vinylidene chloride copolymer and containing an inflating agent under the influence of heat, particularly under the influence of the heat of reaction generated. The hollow microspheres have a diameter between 10 and 100 micrometer. A crosslinking agent, for example butane-diol-1,4, a catalyst, pigments and/or plasticizers can be added to said reactant.

Elastic molded body comprising a cell structure and process for

A layer composition, which may be used for making shoes, upholstery or the like, comprising a carrier layer and a cover layer adhering thereto. The cover layer essentially consists of a synthetic resin material which bubbles are imbedded. The shells of the bubbles consists of a thermoplastic synthetic resin material other than the material of the cover layer. Preferably the shell of the bubbles consists of an elastic copolymer of polyvinylidene chloride and/or of a copolymer of polyvinyl chloride. The bubbles are bonded to the material of the cover layer and have hollow cores containing a gas, preferably air. The volume of the hollow cores amounts to at least 25%, preferably 50 to 85%, of the total volume of the cover layer.

Growing community of inventors

Cerro Maggiore, Italy

Helmut Schaefer