摘要:
Disclosed are an optically active, ethylenically unsaturated monomer represented by the following structural formula: ##STR1## wherein: A stands for S, SO or SO.sub.2 ; X and Y each stand for a hydrogen atom or a substituent selected from the group consisting of alkyl groups and acyl groups; Z stands for a substituent selected from the group consisting of alkoxy, alkylamino, hydroxyl and silyloxy groups; and X and Y can be bonded together to form a ring with the nitrogen atom to which they are bonded or X and Y can be a single group bonded to said nitrogen atom through a double bond, with the proviso that at least one of X and Z is an alkenyl equivalent to said group, and polymers of this monomer. One typical instance of the monomer is benzyl 6-acrylaminopenicillanate.
摘要:
A method for producing spiro-orthocarbonate compounds is disclosed. The method comprises reacting a cyclic carbonate compound of the following formula with an epoxy compound containing an epoxy group: ##STR1## wherein R is an alkylene group or a substituted alkylene group. The disclosed method makes it easy to commercially produce spiro-orthocarbonate compounds in a one stage reaction. The starting materials can be easily handled without any hygienic difficulties and the method can be carried out without entailing any operational difficulties.
摘要:
A process for fabrication of resist comprising a substrate and an overlying radiation sensitive layer, said overlying layer consisting essentially of a specific polymer or copolymer of vinylnaphthalene.
摘要:
A method for manufacturing a glass substrate for a magnetic recording medium, including a polishing step of polishing a principal surface (12) of a glass substrate (10) having a chamfered surface (16) formed on an end surface of the glass substrate (10), with use of a polishing pad (24) having a concave groove (31) formed in a surface (24a) for supplying a polishing solution, the polishing step is performed in the following condition: 10°≦θp
摘要:
A latent curing agent obtained by the reaction of a coumarin compound of the general formula (1), where X and Y can be independently H, an alkyl group, a heteroalkyl group, an aromatic group, a heteroaromatic group or an acetyl group and Z can be H, OH, an alkyl group, a heteroalkyl group, an aromatic group, a heteroaromatic group with an amine of the general formula (2), where “a” is 1 or 2, A can be an alkylene group, a heteroalkylene group, an aromatic group, a heteroaromatic group, and B can be an alkyl group (if a=1), an alkylene group (if a=2), a heteroalkyl group (if a=1), a heteroalkylene group (if a=2), an aromatic group, a heteroaromatic group, a hydroxyl group (if a=1), a secondary amino group (if a=2), O or S (if a=2), whereby B has the valency “a”, or where B alone or where A and B together form a ring system selected from an aliphatic ring system, a heteroaliphatic ring system, or an aromatic ring system, can be used for curable compositions with a polyepoxide which has at least 2 1,2-epoxide groups per molecule.
摘要:
An information recording medium glass substrate and an information recording medium are provided in which a first roll-off variation and a second roll-off variation fall within the following ranges: 180 Å≦first roll-off variation≦990 Å (condition 1) and 650 Å≦second roll-off variation≦3700 Å (condition 2).
摘要:
An information processing apparatus includes: an information processing main unit; a display unit electrically connected to the information processing main unit; and a jack having a cylindrical sleeve provided at a housing of the information processing main unit and located coaxially with an insertion hole through which an external terminal is inserted, the jack having a cylindrical hole for accommodating the external terminal, wherein the sleeve of the jack is accommodated inside the housing of the information processing main unit; and an end face of the sleeve facing toward the housing is covered by the housing in the axial direction of the sleeve.
摘要:
The present invention relates to a catalyst, which is an organic component with electron withdrawing substituents and to compositions with such catalyst and at least one benzoxazine component, and the use of such compositions in adhesives, sealants and coatings.
摘要:
In order to provide an alcohol test device which can keep evidence that an identical person has been surely tested in an alcohol test, the alcohol test device includes an alcohol test unit which measures alcohol concentration from breath exhaled by a subject; a drinking determination unit which determines whether or not the subject is in a drunken state on the basis of a measurement result of the alcohol test unit; a camera unit which photographs a face image of the subject when the breath is exhaled into the alcohol test unit; a face authentication identical person determination unit which compares a face image photographed by the camera unit with a face image of the subject himself (herself) preliminarily photographed, and performs identical person authentication which determines whether or not the subject is the identical person; a result control unit which edits combining a result of identical person authentication by the face authentication identical person determination unit and a result of drinking determination by the drinking determination unit; and a result display unit which displays a result edited by the result control unit.
摘要:
Disclosed herein is an information processor, including: a detecting portion detecting connection between a battery pack and an information processor main body, and outputting connection information to the battery pack; a power source circuit to which an electric power is supplied from the battery pack acquiring the connection information; a manipulation portion adapted to be manipulated by a user; and a stopping portion outputting un-connection information to the battery pack when the manipulation portion is manipulated, and stopping output of the connection information even when the connection is detected by the detecting portion.