Abstract:
The invention relates to a method for producing a composite material from a plastic material and loose stones, said method comprising the following steps: a) the loose stones are mixed with the liquid starting constituents of the plastic material in a mixer, b) said mixture is removed from the mixer, and c) the plastic material is hardened.
A1) mindestens einen Polyether- und/oder Polyetheresterpolyalkohol, A2) mindestens ein Polyesterpolyol A3) mindestens ein flüssiges additives Flammschutzmittel wobei die Bestandteile A1:A2:A3 im Gewichtsverhältnis 10±4,5:13±4:14±4,5 vorliegen.
Abstract:
A roller comprises (A) a hub; (B) a bonded intermediate layer of a cellular polyurethane elastomer; and (C) a top layer of a compact polyurethane. An independent claim is also included for production of the roller by a method in which both the cellular and the compact polyurethanes are prepared by reaction of a polyisocyanate prepolymer with a compound having NCO-reactive hydrogen groups, the method involving laying the roller hub in a mold, introducing and foaming the polyurethane-forming components, introducing the compact polyurethane-forming components and, finally, hardening and demolding the product.
Abstract:
Composite elements having the following layer structure:(i) 2-20 mm of metal,(ii) 10-100 mm of compact polyisocyanate polyaddition products obtainable by reacting (a) isocyanates with (b) polyether polyalcohols, if desired in the presence of (c) catalysts and/or (d) auxiliaries and/or additives,(iii) 2-20 mm of metal.
Abstract:
The tool comprises a cover part(2) and a component supporting part(1) which when closed form a cavity(4) to hold the component(5) to be coated. When closed the two parts seal against each other on the land faces(3) and leave a space(4) around the component to form a coating chamber. The latter chamber connects with a feed line(8) and reservoir for fluid coating material in the sealing surface. Independent claims are made for: a) a composite product to be coated which has a surface covered with a carrier film(10) of greater area than that to be coated and held between the opposing sealing faces of the closed tool; b) a use of the claimed composite product for creating a coated product; c) a process for coating a product using the claimed equipment; d) a coated product produced by the claimed process; e) a use of the claimed coated products in automobile or furniture manufacture.
Abstract:
Composite elements have the following layer structure:(i) from 2 to 20 mm of metal,(ii) from 10 to 300 mm of polyisocyanate polyaddition products obtainable by reacting (a) isocyanates with (b) compounds which are reactive toward isocyanates in the presence of from 1 to 50% by volume, based on the volume of the polyisocyanate polyaddition products, of at least one gas (c) and also, if desired, (d) catalysts and/or (f) auxiliaries and/or additives,(iii) from 2 to 20 mm of metal.
Abstract:
Preparation of mixed polyols, comprises reacting a mixture of: (1) a cyclic ester with at least two ester groups; (2) recycled polyethylene terephthalate (rPET); and (3) an at least divalent alcohol of molecular weight below 1000 with a component containing at least one dicarboxylic acid and then reacting this reaction product with a 2-10C alkylene oxide(s). Preparation of mixed polyols comprises reacting a mixture of a cyclic ester with at least two ester groups, recycled polyethylene terephthalate (rPET) and an at least divalent alcohol of mol. wt. below 1000 with a component containing at least one dicarboxylic acid and then reacting this reaction product with a 2-10C alkylene oxide(s). Independent claims are included for: (1) the obtained mixed polyol; (2) a polyurethane prepolymer prepared from the polyol and its preparation; and (3) a composition for the preparation of an assembly foam comprising the prepolymer and a propellant.
Abstract:
Composite elements have the following layer structure:(i) from 2 to 20 mm of metal,(ii) from 10 to 300 mm of polyisocyanate polyaddition products obtainable by reacting (a) isocyanates with (b) compounds which are reactive toward isocyanates in the presence of from 1 to 50% by volume, based on the volume of the polyisocyanate polyaddition products, of at least one gas (c) and also, if desired, (d) catalysts and/or (f) auxiliaries and/or additives,(iii) from 2 to 20 mm of metal.
Abstract:
The invention relates to composite elements that contain the following layer structure: (i) 2 to 20 mm metal; (ii) 10 to 300 mm polyisocyanate-polyadditi on products which are obtained by reacting (a) isocyanates with (b) compounds that are reactive to isocyanates in the presence of 1 to 50 vol.- %, based o n the volume of the polyisocyanate-polyaddition products, of at least one gas (c) and optionally (d) catalysts and/or (f) auxiliary agents or additives; (iii) 2 to 20 mm metal.
Abstract:
Polyol mixture for polyurethane foams comprises a polyester, two different polyols with ether bonds and an amino diol. Polyol mixture comprises: (a) a compound with at least one amino group and at least two hydroxy groups; (b) a compound with at least one ether bond and being free of amino groups and with 4-8C hydroxy groups; (c) a compound with at least one ether bond and being free of amino groups and with 3C hydroxy groups; and (d) a polyester with at least two hydroxy groups. Independent claims are included for a two-component agent for preparing polyurethane (PU) foams comprising the above polyol mixture and an isocyanate of average functionality at least two and also the obtained polyurethane foams.