Unusual Reaction of Azoxybenzenes with<i>p</i>-Toluenesulfonic Acid in Acetic Anhydride
作者:Ichiro Shimao、Ken Fujimori、Shigeru Oae
DOI:10.1246/bcsj.55.1538
日期:1982.5
azoxybenzene with p-toluenesulfonic acid in aceticanhydride gave tosylates of 4- and 2-(phenylazo)phenols, and the corresponding acetates as by-product, besides azobenzene. However, a similar reaction of 4,4′-difluoroazoxybenzene gave 2-tosyloxy-4,4′-difluoroazobenzene as rearrangement product, besides 4-fluorophenyl tosylate and 4-fluorophenyl acetate. Meanwhile, the reaction of 4,4′-diacetoxyazoxybenzene
energy-dispersive analysis of x-ray on semiintrinsic CdTe:Cl and CdTe:Zn:Cl crystals grown from the vapor phase by the modified Markov technique and on undoped CdTe crystals grown from the melt by the Bridgman method. In CdTe:Cl and CdTe:Zn:Cl crystals nonstoichiometric inclusions of about 10-20 μm were found, which contain high concentrations of Cl and Na impurities. The Cl is concentrated in small precipitates
THERMOPLASTIC RESIN WITH HIGH THERMAL CONDUCTIVITY
申请人:Yoshihara Shusuke
公开号:US20130035468A1
公开(公告)日:2013-02-07
Provided is a thermoplastic resin having excellent thermal conductivity, in which thermoplastic resin a change in number average molecular mass caused by progress of polymerization occurring when the thermoplastic resin material is melted and a change in thermal conductivity caused by the change in number average molecular mass are low. The thermoplastic resin has (A) a specific structure and (B) ends of molecular chains sealed by a monofunctional low molecular weight compound. The resin itself has excellent thermal conductivity. The change in number average molecular mass becomes small during melting of the thermoplastic resin material, so that the change in thermal conductivity of the resin itself becomes small.
COMPOSITION AND METHOD FOR TEMPORARILY FIXING SOLID
申请人:JSR Corporation
公开号:EP1522567A1
公开(公告)日:2005-04-13
The present invention relates to a method of temporarily and firmly fixing two solids to each other and to a composition used in the method, which is a method of temporarily fixing, comprising temporarily fixing the two solids to each other with a liquid crystal compound or a composition comprising the liquid crystal compound. This method is used for a method of temporarily fixing a pad for chemical mechanical polishing, for example, to polish a wafer for a semiconductor device fixed on a surface of a base plate, when one solid is a pad for chemical mechanical polishing of a wafer for a semiconductor device and the other is a base plate to fix the pad.
HIGH THERMAL CONDUCTIVITY THERMOPLASTIC RESIN COMPOSITION AND THERMOPLASTIC RESIN
申请人:Kaneka Corporation
公开号:EP2348071A1
公开(公告)日:2011-07-27
A thermoplastic resin composition according to the present invention contains an inorganic filler and a thermoplastic resin whose main chain contains a repeating unit represented by the general formula (1):
-M-Sp- (1)
wherein M represents a mesogenic group; and Sp represents a spacer.
根据本发明,一种热塑性树脂组合物含有一种无机填料和一种热塑性树脂,其主链含有通式(1)所代表的重复单元:
-M-Sp- (1)
其中 M 代表介原基;Sp 代表间隔物。