摘要:
A medical cushion (1), in particular an anti-decubitus cushion, is in particular multicellular and is distinguished in that the cushion is equipped, at least in the area where skin contact (6) occurs, with an active membrane (3) based on a skin-compatible matrix (4) into which a molecular sieve is mixed. This molecular sieve is charged with at least one active substance (Z, Z1, Z2), and the molecular sieve/active substance adduct (5) releases the active substance when the active membrane comes into skin contact (6) in conjunction with the transpiration of the skin.
摘要:
The invention relates to a plaster containing an active agent, comprising at least one cover membrane and an active membrane which is based on a skin-compatible matrix containing a molecular sieve which is loaded with at least one active agent. The molecular sieve/active agent adduct releases the active agent when the active membrane comes into contact with the skin, in conjunction with the transpired water of the skin. The inventive plaster is characterised in that the molecular sieve/active agent adduct also contains water of crystallisation, to the extent that the molecular sieve is partially hydrated compared to a sufficient basic molar quantity (m) of water of crystallisation, the molecular sieve with the reduced molar quantity (m′) of water of crystallisation being loaded with the active agent (Z, Z1, Z2) so that when the active membrane comes into contact with the skin, water is absorbed and the active agent is desorbed, whereupon the water of crystallisation content of the molecular sieve increases. The invention also relates to various suitable embodiments of the plaster containing an active agent and to an advantageous method for producing the inventive plaster containing an active agent.
摘要:
The invention relates to a rail arrangement for a rail superstucture such as a fixed railroad, comprising an elastic intermediate plate (3) which is located between the rail foot and a hard support (6) in the form of a concrete tie and has two through holes for the screws (7) to fasten the rails. For series mounting, which is the solution of choice, the elastic intermediate plate (3) is combined with an elastic intermediate layer (1) in such a way that the additional intermediate layer rests above the intermediate plate directly below the rail foot, whereby the intermediate layer (1) is separated from the intermediate plate (3) by a metal base plate (2) which serves to fasten the rail. According to the invention, the intermediate plate (3) consists of a single-piece vulcanisate made of a rubber mixture and has three structural zones related to a novel arrangement of protrusions (active surfaces) and recesses (inactive surfaces), whereby the inactive surfaces in the central zone are deeper than those in the two side zones. The invention also relates to other constructional features of the elastic intermediate plate (3).
摘要:
A clarification basin membrane made of a polymeric, in particular, elastomeric material, which is rendered gas-permeable by a perforation, whereby a permanent gas permeability is effected by mixing a wast water biologically active inhibitor with the polymeric material.
摘要:
The invention relates to a caoutchouc mixture for the manufacture of rubber products with low-temperature application capability, resistance to oil, low crystallization tendency, and high dynamic stressability, on the basis of natural caoutchouc, in particular viscosity-stabilized natural caoutchouc, and the usual mixture ingredients. The essence of said invention lies in that the caoutchouc mixture additionally contains 5 to 30% by weight 1,4-polybutadiene with a high cis-proportion, and 5 to 30% by weight epoxidized natural caoutchouc. An additional mixture variation is introduced.
摘要:
A clarification basin membrane made of a polymeric, in particular, elastomeric material, which is rendered gas-permeable by a perforation, whereby a permanent gas permeability is effected by mixing a wast water biologically active inhibitor with the polymeric material.
摘要:
A rubber-based soundproofing material comprises a mixture of a rubber blend, a metal or its oxides, alloys or salts, and conventional mixing ingredients. The mixture is either a non-blended chlorobutyl rubber, bromobutyl rubber or acrylate rubber, or a blend of nitrile rubber or styrene-butadiene rubber with epoxidized natural rubber. The mixture has the following proportions: 10-15% by wt. rubber or rubber blend, 85-40% by wt. metal or its oxides, alloys or salts, and 5-10 wt. % mixing ingredients.
摘要:
A rubber mixture is particularly based on natural rubber (NR), epoxidized natural rubber (E-NR), isoprene rubber (IR), butadiene rubber (BR), acrylate rubber (ACM), styrene-butadiene rubber (SBR), or blends of these types of rubber, particularly NR/SBR- blends or NR-BR- blends, as well as the usual mixing ingredients such as fillers, plasticizers, anti-aging media, as well as additional additives, if needed. This mixture produces a plate-like, elastic intermediate layer with low dynamic stiffening; high dynamic stressability; high specific volume resistivity; and low frequency-dependence of the dynamic stiffening. The intermediate layer is arranged particularly between the base of the rail and the top side of the tie in connection with high-speed rail tracks. The underside of the intermediate layer is provided with at least one recess, with formation of an edge extending all around, and facing the top side of the tie. The top side of the intermediate layer which is the surface supporting the base of the rail, is substantially planar shaped.
摘要:
In a unilateral NMR probe for the analysis of a material comprising at least one magnet for generating a constant time-invariant polarization field B0 in the material to be analyzed and current conductors forming a radio frequency oscillation circuit for generating a pulsed radio frequency magnetic excitation field B1 which is superimposed on the polarization field N0 in the material, the circuit conductors are so designed as to provide several adjacent excitation fields B0 with alternatingly oppositely oriented magnetic fields, whereby the current conductors generating each one of the excitation fields have a distance from each other which causes a certain penetration depth in the material to be analyzed and echoes received therefrom provide measurement values which are characteristic for the material being analyzed.
摘要翻译:在用于分析包括至少一个磁体的材料的单侧核磁探针中,用于在待分析的材料中产生恒定的时间不变极化场B 0 <0>和形成射频振荡电路的电流导体 产生叠加在材料中的偏振场N <0>上的脉冲射频磁激励场B 1,电路导体被设计成提供几个相邻的激励场 B <0>具有交替反向取向的磁场,由此产生每个激励场的电流导体彼此之间具有一定距离,这导致要分析的材料中的一定穿透深度,并且从其接收的回波提供 测量值是被分析材料的特征。
摘要:
In a unilateral NMR probe for the analysis of a material comprising at least one magnet for generating a constant time-invariant polarization field B0 in the material to be analyzed and current conductors forming a radio frequency oscillation circuit for generating a pulsed radio frequency magnetic excitation field B1 which is superimposed on the polarization field N0 in the material, the circuit conductors are so designed as to provide several adjacent excitation fields B0 with alternatingly oppositely oriented magnetic fields, whereby the current conductors generating each one of the excitation fields have a distance from each other which causes a certain penetration depth in the material to be analyzed and echoes received therefrom provide measurement values which are characteristic for the material being analyzed.