Organic radiographic contrasting agents for medical devices
申请人:Zhao Z. Jonathon
公开号:US20070128120A1
公开(公告)日:2007-06-07
The present invention discloses an organic radiographic contrasting agent containing an aliphatic or alicyclic backbone and multiple halogen-substituted aromatic groups. Each of the halogen-substituted aromatic groups in the radiographic contrasting agent is substituted with at least three halogen atoms and is covalently attached to the aliphatic or alicyclic backbone. The present invention also discloses a radio-opaque polymeric material comprising the radiographic contrasting agent and at least one polymer. The radiographic contrasting agent is physically admixed with the at least one polymer or physically embedded or dispersed in the at least one polymer. The radio-opaque polymeric material provides enhanced contrasting intensity in radiographic imaging. The radio-opaque polymeric material can be applied on at least a portion of one surface of a medical device. The radio-opaque polymeric material can also be used to construct a medical device, a component thereof, or a portion of a component thereof.
This invention is directed to a process for producing a bishalophenyl disulfide, chracterized by reacting a halothiophenol with an alkali metal hydroxide to obtain an alkali metal halothiophenolate and subsequently converting the halothiophenolate into a disulfide with an oxidizing agent in the presence of a mineral acid. By the process, a bishalophenyl disulfide having a high purity can be industrially produced in high yield.
Electrolyte additive and electrolyte including same and lithium rechargeble battery including electrolyte
申请人:Samsung SDI Co., Ltd.
公开号:EP2746288A1
公开(公告)日:2014-06-25
Disclosed is an electrolyte additive represented by the following Chemical Formula 1, and an electrolyte for a rechargeable lithium battery including the electrolyte additive, and a rechargeable lithium battery including the electrolyte.
In Chemical Formula 1, R1 to R4 are the same as defined in the detailed description.
Electrolyte for rechargeable lithium battery and rechargeable lithium battery
申请人:SAMSUNG SDI CO., LTD.
公开号:US10998580B2
公开(公告)日:2021-05-04
An electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the electrolyte, the electrolyte including a non-aqueous organic solvent; a lithium salt; and an additive, wherein the additive includes a compound represented by Chemical Formula 1:
wherein, in Chemical Formula 1, R is a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C1 to C10 alkoxy group, a substituted or unsubstituted C2 to C10 alkenyl group, a substituted or unsubstituted C2 to C10 alkynyl group, a substituted or unsubstituted C3 to C10 cycloalkyl group, a substituted or unsubstituted C3 to C10 cycloalkenyl group, or a substituted or unsubstituted C6 to C20 aryl group, and n is an integer of 1 to 3.
ELECTROLYTE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY
申请人:SAMSUNG SDI CO., LTD.
公开号:US20210135287A1
公开(公告)日:2021-05-06
An electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the electrolyte, the electrolyte including a non-aqueous organic solvent; a lithium salt; and an additive, wherein the additive includes a compound represented by Chemical Formula 1:
in Chemical Formula 1, R
1
is a cyano group, a substituted or unsubstituted C2 to C10 alkenyl group, or a substituted or unsubstituted C2 to C10 alkynyl group.