摘要:
A lithium ion battery electrode formed by the pyrolysis of a silazane polymer followed by introducing lithium ions. These electrodes can be used to form batteries with large capacities, low irreversible capacity, high density and good safety behavior.
摘要:
A pharmaceutical composition for treating a transient ischemic attack which comprises a compound of formula (I), wherein R1 is a pyridyl group, R2 is a phenyl, thienyl, furyl, naphthyl, benzothienyl or pyridyl group, which may be substituted with a lower alkoxy group, a lower alkyl group, a halogen atom, trifluoromethyl group, a lower alkenyl group or/and methylenedioxy group, R3 is hydrogen atom or a lower alkyl group, and l is an integer of 0 to 6, Y is sulfur atom, methylene group or a group of formula (a), wherein R4 is hydrogen atom or acetyl group, and m is 0 or 1, or a pharmaceutically acceptable salt.
摘要:
Novel alkoxythiocarbonylimidazoles provide new reagents for the N-terminal sequencing of small polypeptides samples. These reagents form an alkoxy thiourea derivative which is cleaved with acid to remove the N-terminal amino acid as a stable thiazolinone which does not rearrange to a thiohydantoin. This thiazolinone may be derivatized to provide a detectable group such as a fluorescent group or an ionizable group detectable by mass spectrometry.
摘要:
Silicone pressure sensitive adhesive compositions which cure in the presence of moisture comprise an adhesive component which bears alkoxy radical-containing curing radicals and, optionally, a catalyst to accelerate the reaction of moisture with the alkoxy radicals to form siloxane bonds. Curing provides adhesives ranging from pressure sensitive adhesives having improved properties to permanent adhesives. The adhesives are useful for adhering an object to a surface and thereafter improving the bond between the object and the surface by exposure to moisture.
摘要:
A method is disclosed of forming a seal between two or more non-porous substrates by adding an oximosilicon compound to a prepared roomtemperature-vulcanizable silicone sealant composition which is comprised of an alkoxy ended polydiorganosiloxane, a crosslinker having silicon-bonded methoxy or ethoxy, a filler, a titanate catalyst, and by-produced methanol or ethanol that is obtained during the manufacture of the silicone sealant composition. applying the sealant composition to at least two non-porous substrates forming an assembly of an uncured sealant composition bonding them together, subjecting the assembly to conditions which would ordinarily form detrimental bubbles if the oximosilicon compound were not present, and completely curing the composition to form an assembly of at least two non-porous substrates bonded by cured sealant that is essentially free of detrimental bubbles. Such a method is valuable in forming gaskets which are used in the internal combustion engine industry.
摘要:
A compound, represented by the following formula (I), having psychotropic effect is disclosed. A compound represented by the following formula (I) or a pharmaceutically acceptable salt thereof: wherein
any one of R 1 and R 2 represents group W-(CH 2 ) m - wherein m is an integer of 1 to 4 with the other representing H or optionally substituted lower alkyl, group W is a group represented by the following formula (i): wherein R 3 represents H or a halogen atom, A represents O or S, B represents N or CH, and Y represents CH or N; and ring structure -D- represents any one of the following formulae (a) to (d): wherein n is an integer of 0 to 2, R 4 and R 5 each independently represent H, lower alkyl, a hydroxyl group, alkoxy, alkoxycarbonyl, or aminocarbonyl, and a solid line accompanied by a dotted line represents a single bond or a double bond.