A method of forming a three-dimensional object, wherein said three-dimensional object is an insert for use between a helmet and a human body, is described. The method may use a polymerizable liquid, or resin, useful for the production by additive manufacturing of a three-dimensional object, comprising a mixture of (i) a light polymerizable liquid first component, and (ii) a second solidifiable component that is different from said first component.

A method of forming a three-dimensional object, wherein said three-dimensional object is an insert for use between a helmet and a human body, is described. The method may use a polymerizable liquid, or resin, useful for the production by additive manufacturing of a three-dimensional object, comprising a mixture of (i) a light polymerizable liquid first component, and (ii) a second solidifiable component that is different from said first component.

An aqueous emulsion contains a copolymer having three components: a) to c). Component a) has at least one biuret or isocyanurate substructure. Component b) is selected from polysiloxanes and polyhydrocarbons, preferably polysiloxanes. Component c) contains a hydrocarbon which is different from component b) and has at least 6 carbon atoms and not more than 3 heteroatoms selected from N, O, and S. Component b) is joined to 2 different or identical components a) via at least two positions.

An aqueous emulsion contains a copolymer having three components: a) to c). Component a) has at least one biuret or isocyanurate substructure. Component b) is selected from polysiloxanes and polyhydrocarbons, preferably polysiloxanes. Component c) contains a hydrocarbon which is different from component b) and has at least 6 carbon atoms and not more than 3 heteroatoms selected from N, O, and S. Component b) is joined to 2 different or identical components a) via at least two positions.

A biodegradable aliphatic-aromatic polyester for the production of packaging films, having a Poisson's ratio (RVE) between 800 and 1700, comprising units of at least one dicarboxylic acid and at least one diol, in which Mn≥40000 and Mw/q≤90000, in which q is the percentage by weight of polyester oligomers having a molecular weight≤10000.

A biodegradable aliphatic-aromatic polyester for the production of packaging films, having a Poisson's ratio (RVE) between 800 and 1700, comprising units of at least one dicarboxylic acid and at least one diol, in which Mn≥40000 and Mw/q≤90000, in which q is the percentage by weight of polyester oligomers having a molecular weight≤10000.

A method of forming a three-dimensional object is carried out by: (a) providing a carrier and an optically transparent member having a build surface, the carrier and the build surface defining a build region therebetween; (b) filling the build region with a polymerizable liquid, the polymerizable liquid including a mixture of (i) a light polymerizable liquid first component, and (ii) a second solidifiable component that is different from the first component; (c) irradiating the build region with light through the optically transparent member to form a solid polymer scaffold from the first component and also advancing the carrier away from the build surface to form a three-dimensional intermediate having the same shape as, or a shape to be imparted to, the three-dimensional object, and containing the second solidifiable component carried in the scaffold in unsolidified and/or uncured form; and (d) concurrently with or subsequent to the irradiating step, solidifying and/or curing the second solidifiable component in the three-dimensional intermediate to form the three-dimensional object.

The invention relates to a method for producing a composite film with a polyurethane-based reactive hot-melt layer using a coating facility, having the steps of a) optionally applying a primer onto a support material; b) applying the polyurethane-based reactive hot-melt layer onto the primer or directly onto the support material; c) applying a lacquer layer onto the polyurethane-based reactive hot-melt layer in order to produce the composite film on the support material; d) optionally embossing the composite film on the support material; and e) separating the composite film from the support material. The invention additionally relates to a composite film which can be obtained by such a method and to the use thereof.

A chafe layer for a fluid conduit, wherein the chafe layer consists of thermoplastic polyurethane which contains a polyol, in particular a short-chained, diol as a chain extender and isocyanate. The polyol is a polycarbonate. A fluid conduit, a method for producing a fluid conduit as well as the use of a polyurethane and the use of an ethylene copolymer as an additive.

An organic-inorganic hybrid material is disclosure. The organic-inorganic hybrid material contains 5˜50 wt % of inorganic compounds and has a characteristic peak at 1050±50 cm.sup.−1 in FTIR spectrum. Furthermore, the invention also provides a fabricating process of the organic-inorganic hybrid material as well as its starting material “isocyanates”. In particular, the isocyanates are prepared from carbonate containing compounds and amines.