摘要:
A catalyst composition for the preparation of 3-pentenoic ester from butadiene. The catalyst composition includes a palladium complex; and a bidentate phosphine with the following formula: .sub.1 R.sub.2 P--(CH.sub.2)n--PR.sub.3 R.sub.4, wherein n is a integer from 1 to 6; and a bulky benzoic carboxylic acid.
摘要:
A process for hydrogenation of conjugated diene polymers comprises hydrogenating said polymer in the presence of hydrogen and a hydrogenation catalyst composition comprising: (a) at least one titanium compound represented by the following formula (a): wherein R1 and R2, which may be the same or different, represent a halogen atom, an alkyl group, an aryl group, an arakyl group, a cycloalkyl group, an aryloxy group, an alkoxy group or a carbonyl group, and Cp* represents a cyclopentadienyl group or a derivative having the formula of C5R5, and R5, which may be the same or different, represents a hydrogen atom, an alkyl group an aralkyl group and an aryl group; and (b) at least one silyl hydride.
摘要:
A method and apparatus of growing a thin film are provided. The method comprises at least (a) providing a number of substrates; (b) cleaning the substrates; and (c) placing the substrates into a reaction liquid; (d) vibrating the reaction liquid by ultrasonic waves such that a thin film is grown on the substrates evenly.
摘要:
Photo energy transformation catalysts and methods for fabricating the same are provided. The method includes mixing a solution containing a positive valence element of Group IB, a solution containing a positive valence element of Group IIIA, and a solution containing a negative valence element of Group VIA to obtain a composition and forming a film from the composition by liquid phase deposition, wherein the film contains compounds including the elements of Group IB, Group IIIA, and Group VIA.
摘要:
A method and apparatus of growing a thin film are provided. The method comprises at least (a) providing a number of substrates; (b) cleaning the substrates; and (c) placing the substrates into a reaction liquid; (d) vibrating the reaction liquid by ultrasonic waves such that a thin film is grown on the substrates evenly.
摘要:
A method and a storage apparatus for switching a data transmission path to transmit data are provided. The storage apparatus comprises a storage element, an interface connector, a connector control interface connected with the storage element and the interface connector, a wireless transmission module, and an apparatus controller connected with the storage element and the wireless transmission module. In the method, the apparatus controller receives a connection request from a remote apparatus by using the wireless transmission module, and accordingly transmits an inquiry message to the remote apparatus to ask whether to establish a wireless data transmission path. When a confirmation message returned from the remote apparatus is received, the apparatus controller closes the connector control interface and establishes a wireless data transmission path to provide the remote apparatus to access the data in the storage element.