Abstract: Composite elements have the following layer structure: (i) from 2 to 20 mm of metal, (ii) from 10 to 300 mm of plastic, and (iii) from 2 to 20 mm of metal, where (i) and/or (iii) have an opening which may, if desired, be sealable.

Abstract: The invention relates to composite elements comprising the following laminar structure: (i) 2 to 20 mm metal; (ii) 10 to 100 mm polyisocyanate polyaddition products having a density ranging from 350 to 1050 kg/m3 that can be obtained by reacting (a) isocyanates with (b) compounds, which are reactive to isocyanates, in the presence of (f) expanding agents, and; (iii) 2 to 20 mm metal.

Abstract: Composite elements have the following layer structure: (i) from 2 to 20 mm of metal, (ii) from 10 to 300 mm of plastic, and (iii) from 2 to 20 mm of metal, where (i) and/or (iii) have an opening which may, if desired, be sealable.

Abstract: In composite elements which have the following layer structure: (i) from 2 to 20 mm of metal, plastic or wood, (ii) from 10 to 300 mm of plastic and (iii) from 2 to 20 mm of metal, plastic or wood, hollow bodies having an external diameter of less than 5 mm are present in the layer (ii).

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: A compact veneer is based on a reaction mixture comprising a) isocyanate, b) as compounds which are reactive toward isocyanates, a mixture (b1) comprising: b11) from 15 to 90% by weight, preferably from 50 to 80% by weight, based on the weight of the mixture (b1), of at least one polyether polyalcohol having a molecular weight of from 400 to 6000, preferably from 1000 to 4000 and a mean functionality of from 1.5 to 3 and based on hydroxyl-containing initiator substances and propylene oxide and also, if desired, ethylene oxide, b12) from 0 to 20% by weight, preferably from 0 to 10% by weight, based on the weight of the mixture (b1), of at least one polyether polyalcohol having a molecular weight of from 400 to 6000, preferably from 400 to 4000, and a mean functionality of from 1.

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 invention relates to composite elements comprising the following laminar structure: (i) 2 to 20 mm metal; (ii) 10 to 100 mm polyisocyanate polyaddition products having a density ranging from 350 to 1050 kg/m3 that can be obtained by reacting (a) isocyanates with (b) compounds, which are reactive to isocyanates, in the presence of (f) expanding agents, and; (iii) 2 to 20 mm metal.

Abstract: The invention relates to composite elements which have the following layer structure:

Abstract: A storage/display box for elongated objects has a generally parallepipedal and hollow base having a pair of parallel and spaced side walls and a normally horizontal floor extending between the pair of side walls, a cover pivotal on the base between a closed position closely engaged over the base and closing same and an open position standing upward therefrom, and a holder fittable in the box, adapted to hold at least one of the objects, and having a pair of side walls juxtaposed with the respective side walls of the base. A pivot pin is seated in one of the pairs of side walls for pivoting of the holder between a down end position wholly received in the base and an up end position projecting upward therefrom and through an intermediate position between the down and up positions. A guide formed in the other pair of side walls extends transversely of the floor and receives the pin for movement of the pin relative to the one pair of side walls limitedly transversely relative to the floor.

Abstract: A storage/display box for elongated objects has a generally parallepipedal and hollow base having a pair of parallel and spaced side walls, a cover pivotal on the base between a closed position closely engaged over the base and closing same and an open position standing upward therefrom, and a holder fittable in the box and adapted to hold at least one of the objects. A pivot between the holder and the side walls mounts the holder for movement between a down position wholly received in the base and an up position projecting upward therefrom and through an intermediate position between the down and up positions. A spring engaged between the base and the holder is positioned such that it is greatly deformed in the intermediate position and substantially less deformed in the up and down positions.

Abstract: The invention relates to transparent, autoclavable, non-cytotoxic, essentially compact polyurethane embedding compositions which are prepared by reactinga) modified diphenylmethane diisocyanates withb) compounds with at least two reactive hydrogens, which contain or are composed ofb1) at least one polyether-polyol with an average functionality of from 3 to 8, a hydroxyl number of from 200 to 1000 and an alkali metal ion content of from 150 to 1200 ppm or, preferably, a mixture of (b1) and castor oil and/or at least one polyetherpolyol (b2) with a functionality of from 2 to 3, a hydroxyl number of from 90 to 200 and an alkali metal ion content of less than 10 ppm in the presence or absence ofc) catalysts and to a process for preparing the polyurethane embedding compositions and to the use thereof for articles used in medicine.

Abstract: A connecting clip has a clip arm and two clip legs extending from the clip arm. Pivot eyes are formed at the free ends of the clip legs with the pivot eye axes substantially parallel to the clip arm. In order that the combining clip be held with several others in a heap-like arrangement and be mounted automatically, the clip arm is bent with its free end on the same side of both of the clip legs and the clip legs are formed with enlargements lying approximately opposite each other in the plane of the clip legs. These enlargements are formed by a pair of bent portions, preferably opposing indentations directed toward each other. The indentations are conformed for engagement by a gripper with which the combining clip can be automatically mounted.

Abstract: A case for holding and displaying objects such as drill bits has an elongated and upwardly open box, an insert adapted to hold a plurality of the objects and pivotal in the box about an insert axis between a down position wholly contained therein and an up position projecting upward therefrom, a U-shaped link having a pair of legs pivoted on the insert and a straight bight portion extending substantially parallel to the axis, interconnecting the legs, and of a predetermined bight length between the legs, and a lid pivotal on the box between a closed position engaging over and closing the box and an open position projecting upward therefrom. The lid is formed with a pivot loop through which the bight portion passes and which has a pair of outer edges spaced axially apart substantially by the bight length. Thus the bight portion engaged through this loop cannot move axially relative to the lid.