摘要:
The invention relates to a method for producing load transferring regions in a ballast body of a track superstructure by introducing curable liquid plastics or reactive plastic mixtures from a mixing unit by means of at least two distributor pipes with outlets into the load transferring regions and allowing the plastic or the reactive plastic mixture to cure in said load transferring regions. The two distributor pipes with outlets are positioned on the left or on the right from the outside of the rails into the region between the two rails such that the outlets are located adjacent to each other and are laterally spaced from the front face (3) of the tie (2) that has the load transferring region to be reinforced. The two outlets are opened in order to allow the plastic or the reactive plastic mixture to exit at a controlled rate. Each distributor pipe outlet is guided to the respective end face (4, 4′) of the tie (2) from the inside to the outside in a lateral manner with respect to the front face (3) of the tie (2) and around the respective end face (4, 4′) of the tie (2) to the rear face (5) of the tie (2). The distributor pipe outlets are guided in a lateral manner along the rear face (5) of the tie (2) into the region between the two rails (9, 9′) such that the outlets are located adjacent to each other and are laterally spaced from the rear face (5) of the tie (2).
摘要:
The invention relates to a method for producing load transferring regions in a ballast body of a track superstructure by introducing curable liquid plastics or reactive plastic mixtures from a mixing unit by means of at least two distributor pipes with outlets into the load transferring regions and allowing the plastic or the reactive plastic mixture to cure in said load transferring regions. The two distributor pipes with outlets are positioned on the left or on the right from the outside of the rails into the region between the two rails such that the outlets are located adjacent to each other and are laterally spaced from the front face (3) of the tie (2) that has the load transferring region to be reinforced. The two outlets are opened in order to allow the plastic or the reactive plastic mixture to exit at a controlled rate. Each distributor pipe outlet is guided to the respective end face (4, 4′) of the tie (2) from the inside to the outside in a lateral manner with respect to the front face (3) of the tie (2) and around the respective end face (4, 4′) of the tie (2) to the rear face (5) of the tie (2). The distributor pipe outlets are guided in a lateral manner along the rear face (5) of the tie (2) into the region between the two rails (9, 9′) such that the outlets are located adjacent to each other and are laterally spaced from the rear face (5) of the tie (2).
摘要:
The present invention relates to diene polymers or diene copolymers, wherein she diene polymers or diene copolymers have, at the start of the polymer chains, tertiary amino groups of the formula (Ia), (Ib), (IIa) or (IIb) whereR1, R2 are the same or different and are each alkyl, cycloalkyl, aryl, alkaryl and aralkyl radicals which may contain heteroatoms such as O, M, S and/or Si,Z is a divalent organic radical which, as well as C and H, may contain heleroatoms such as O, N, S and/or Si,and, at the end of the polymer chains, silane-containing carbinol groups of the formula (III) or metal salts thereof or semimetal salts thereof, whereR3, R4, R5, R6 are the same or different and are each an H or alkyl, cycloalkyl, aryl, alkaryl and aralkyl radicals which may contain heteroatoms such as O, N, S and/or Si,A is a divalent organic radical which, as well as C and H, may contain heteroatoms such as O, N, S and/or Si.
摘要翻译:本发明涉及二烯聚合物或二烯共聚物,其中二烯聚合物或二烯共聚物在聚合物链开始时具有式(Ia),(Ib),(IIa)或(IIb)的叔氨基,其中 R 1,R 2相同或不同,各自可以含有杂原子如O,M,S和/或Si的烷基,环烷基,芳基,烷芳基和芳烷基,Z是二价有机基团,以及C和 H,可以含有诸如O,N,S和/或Si之类的天然原子,并且在聚合物链的末端,式(III)的含硅烷的甲醇基团或其金属盐或其半金属盐,其中R3, R 4,R 5,R 6相同或不同,并且各自为可以含有杂原子如O,N,S和/或Si的H或烷基,环烷基,芳基,烷芳基和芳烷基,A为二价有机基团, 以及C和H可以含有杂原子如O,N,S和/或Si。
摘要:
Polyurethane molded foams having a surface region and an interior region and comprising a flame-retardant solid, wherein the flame-retardant solid is present in the surface region in a proportion higher than a proportion of the flame-retardant solid in the interior region; processes for preparing the same; and materials comprising such foams.
摘要:
A semiconductor structure includes a semiconductor layer stack includes a semiconductor substrate of a first conductivity type, a heavily-doped buried layer of a second conductivity type, and a monocrystalline semiconductor layer of a third conductivity type formed on top of the semiconductor layer and the buried layer, a contact to the buried layer, the contact formed in a contact hole, and a lateral insulation of different portions of the semiconductor structure, the insulation formed in an isolation trench. A contact to the semiconductor substrate may be formed within the isolation trench.
摘要:
A semiconductor structure includes a semiconductor layer stack includes a semiconductor substrate of a first conductivity type, a heavily-doped buried layer of a second conductivity type, and a monocrystalline semiconductor layer of a third conductivity type formed on top of the semiconductor layer and the buried layer, a contact to the buried layer, the contact formed in a contact hole, and a lateral insulation of different portions of the semiconductor structure, the insulation formed in an isolation trench. A contact to the semiconductor substrate may be formed within the isolation trench.
摘要:
A process for the preparation of superabsorbent polymers by alkaline hydrolysis of polyacrylonitrile emulsions is disclosed. In an embodiment of the invention the process comprise preparing a PAN emulsion, subjecting the emulsion to alkaline hydrolysis, neutralizing the hydrolysate followed by drying, granulation and modifying the surface of the granular polymer by crosslinking. The process is characterized in that the isolation of the superabsorbent polymer entails neither alcohols nor organic solvents.
摘要:
A training aid for persons using a hand-held sporting implement which strikes a ball. The training aid controls the bending of the wrist. The training aid includes a housing which is removably secured to the person's wrist and forearm. A sliding latch is formed in the housing and is removably restrained in the housing. A member is pivotally attached to the housing. An opening to receive the thumb is formed in the pivotally attached member. A bowed connector connects the pivotally attached member to the sliding latch. When the training aid is mounted on the person's wrist and forearm and the person holds the sporting implement in a position to swing the sporting implement, the bowed connector restrains movement of the pivotally attached member and restrains uncocking of the wrist. When the person swings the sporting implement close to impact with the ball, the wrist uncocks and pulls the bowed connector to release the sliding latch.
摘要:
The invention relates to a high molecular weight bimodal neodymium-catalysed polybutadiene having a high proportion, >95%, of cis-1,4 units and a low proportion, 0.5 for the polymeric main fraction and