Medical devices having conductive substrate and covalently bonded coating layer
申请人:Richard E. Robert
公开号:US20060013853A1
公开(公告)日:2006-01-19
The present invention provides a medical device comprising an electrically conductive substrate and a coating layer that covers at least a portion of the electrically conductive substrate, wherein the coating layer comprises a polymer that is made by a process that comprises (a) electrochemically linking a initiator to a surface of the electrically conductive substrate and (b) conducting a free radical polymerization reaction in the presence of one or more free radical polymerizable monomers.
Polyhydroxyalkanoate having vinyl group, ester group, carboxyl group, and sulfonic group, and method of producing the same
申请人:Kenmoku Takashi
公开号:US20070073006A1
公开(公告)日:2007-03-29
To provide a novel polyhydroxyalkanoate having a reactive functional group in a molecule and a method of producing the same; and a novel polyhydroxyalkanoate having a new function obtained by chemically modifying the polyhydroxyalkanoate having a reactive functional group and a method of producing the same. By utilizing a vinyl group of a polyhydroxyalkanoate containing a unit having the vinyl group at a side chain thereof, a polyhydroxyalkanoate containing units having a carboxyl group, an amide group, and a sulfonic group in a molecule is induced.
Polyhydroxyalkanoic Acid Having Vinyl, Ester, Carboxyl or Sulfonic Acid Group and Producing Method Therefor
申请人:Kenmoku Takashi
公开号:US20080064828A1
公开(公告)日:2008-03-13
The invention is to provide a novel polyhydroxyalkanoate having a reactive function group within the molecule and a producing method therefor In a polyhydroxyalkanoate containing a unit having a vinyl group in a side chain, such vinyl group is utilized for deriving a polyhydroxyalkanoate comprising a carboxyl group or a unit having an amide group and a sulfonic acid group.
Charge control agent, toner, image forming method, and image forming apparatus
申请人:Yano Tetsuya
公开号:US20090202927A1
公开(公告)日:2009-08-13
To provide: a charge control agent having negative chargeability, which contributes to environmental conservation and the like to an increased degree, has high performance (high charge amount, quick rise-up of charge, excellent stability with time, and high environmental stability), and has improved dispersibility; a toner for developing an electrostatic charge image containing the charge control agent; and an image forming method and an image forming apparatus each using the toner for developing an electrostatic charge image. A charge control agent for controlling a charged state of powder, characterized by including one or more units each represented by the following chemical formula (1) in a molecule.
PROCESS FOR THE PREPARATION OF 1-ALKOXY-1-TRIMETHYLSILYLOXYCYCLOPROPANES
申请人:IHARA CHEMICAL INDUSTRY CO., LTD.
公开号:EP0900803A1
公开(公告)日:1999-03-10
The present invention provides a process for producing 1-alkoxy-1-trimethylsilyloxycyclopropane represented by the following general formula:
by reacting microgranular metallic sodium dispersed in a hydrocarbon solvent, β-halogenocarboxylic acid ester represented by the following general formula:
and chlorotrimethylsilane.
According to the present invention, by using no ether compound solvent (the ether compound solvent has various problems in safety) and using microgranular metallic sodium dispersed in a hydrocarbon solvent, 1-alkoxy-1-trimethylsilyloxycyclopropane can be industrially produced simply (no special apparatus is required) at an advantageous cost at a yield at least equal to that obtained when an ether is used as solvent.