摘要:
A piece gun for spraying includes a base body. A trunk portion is provided with a storage area for containing a coating liquid. The trunk portion is positioned within the base body. A head portion is connected to the trunk portion. The head portion is provided with a writing member for discharging the coating liquid. A first air passage surrounds at least the head portion of the trunk portion. A second air passage is operatively connected to a source of high pressure fluid. A switching valve includes an operational member for manual actuation and a working member operatively connected to the operational member. The working member initially operates the switching valve to connect the second air passage to the atmosphere during an early stage of operation of the operational member. The working chamber communicates the second air passage with the first air passage during a latter stage of operation.
摘要:
A dental adhesive kit is disclosed, comprising a combination of: (i) a self-etching primer comprising (A) from 1.0 to 50% by weight of a methacrylate or acrylate having an acidic group and having at least one unsaturated double bond, (B) from 1.0 to 98% by weight of a water-soluble organic solvent, and (C) from 1.0 to 90% by weight of water; and (ii) a bonding agent comprising (D) from 10 to 90% by weight of a methacrylate or acrylate having neither acidic group nor hydroxyl group and having at least one unsaturated double bond, (E) from 10 to 90% by weight of a methacrylate or acrylate not having an acidic group but having a hydroxyl group and having at least one unsaturated double bond, (F) from 0.1 to 5.0% by weight of a photopolymerization initiator, (G) from 0.1 to 5.0% by weight of a photopolymerization accelerator, and (H) from 1.0 to 60% by weight of a filler. The dental adhesive kit of the invention is useful for making the adhesive properties of a resin-based adhesive firm and reliable by a simple handling in adhering a dental restorative material to an enamel and a dentin.
摘要:
To provide a compound which exhibits a serotonin antagonism and an acetylcholine release accelerating activity at a well-balanced activity ratio. An aminobenzoic acid derivative represented by the general formula (I) or (II) or a pharmacologically acceptable salt thereof: ##STR1## wherein R.sup.1 represents a group represented by the formula: ##STR2## {wherein A represents a group represented by formula --CH.sub.2 --X--CH.sub.2 -- (wherein X represents O, >N--R.sup.6 or >CHR.sup.7 (wherein R.sup.6 represents lower alkyl and R.sup.7 represents hydrogen or lower alkoxy)), etc.; D and E each represents a group represented by formula --(CH.sub.2).sub.3 --, etc., and R.sup.2 represents lower alkyl. etc.}; R.sup.9 represents alkynyl; R.sup.10 represents amino, etc.; R.sup.11 represents halogen; R.sup.12 and R.sup.13 each represent lower alkyl; a is an integer of 1 to 5; and b is an integer of 0 to 5!.
摘要:
A new benzodioxole derivative has a substituent in the phenyl ring which is a carboxyalkylthioalkyl or the like and is effective to treat a liver disease.
摘要:
A dental glass ionomer cement composition comprises:(a) 5 to 100 parts by weight of a polymer of an .alpha.-.beta. unsaturated carboxylic acid having a weight average molecular weight of 5,000 to 40,000,(b) 5 to 100 parts by weight of a fluoroaluminosilicate glass powder having an average particle size of 0.02 to 10 .mu.m and a specific gravity of 2.4 to 4.0 and capable of reacting with said "polymer of an .alpha.-.beta. unsaturated carboxylic acid having a weight average molecular weight of 5,000 to 40,000",(c) 5 to 100 parts by weight of a polymerizable unsaturated organic compound having at least one CH.sub.2 .dbd.C(R1)--COO--group wherein R1=H or CH.sub.3,(d) 0.01 to 5 parts by weight of a polymerization catalyst,(e) 2 to 50 parts by weight of water,(f) 0.01 to 20 parts by weight of a surface active agent, and(g) 0.01 to 5 parts by weight of a reducing agent, and optionally h. 0 to 50 parts by weight of an inorganic filler having an average particle size of 0.02 to 10 .mu.m and undergoing no reaction with said "polymer of an .alpha.-.beta. unsaturated carboxylic acid having a weight average molecular weight of 5,000 to 40,000".
摘要:
According to one embodiment of the present invention, a magnetic bubble memory module comprising a flexible printed circuits substrate (FPC3), on which a magnetic bubble memory chip (CHI) is mounted and electrically connected, with interconnecting patterns(9a) electrically connecting the chip (CHI) with external connecting leads, terminals or pins as well as bias coil winding (BIC2) for applying bias field to the chip (CHI), thereby reducing the number of components as well as fabricating steps because of the formation of the bias coil (BIC2) with the printed circuits substrate (FPC3).
摘要:
In connecting an electronic circuit part such as a semiconductor or other part to a substrate for mounting the part with solder, the solder is composed of a high-melting-point solder portion which is subjected to working such as rolling and heat treatment in order to break the cast structure thereof, and a smaller volume of low-melting-point solder portions. The high-melting-point solder portion is connected to both the electronic circuit substrate and the electronic circuit part through the low-point-melting solder portions.This method enables interconnection between objects to be connected without impairing the high ductility and toughness of the high-melting-point solder which is subjected to working and heat treatment. This soldering method ensures highly reliable manufacture of miniaturized high density circuits, such as LSI.
摘要:
A composition applied in the mouth which has a preventive effect on dental carries and contains such tannic acid derivatives as of solubility resistance to water.
摘要:
A dental cement comprising a cement powder to which are added one or more of tannic acid derivatives consisting of the group of a tannic acid-protein combination, a tannic acid-formaldehyde combination, acetyl tannate and a metal salt of tannic acid, said tannic acid derivatives being sparingly soluble in water.
摘要:
A liquid for setting dental cements is provided, in which an aqueous solution of a copolymer of acrylic and maleic acids contains a tetrahydrofurantetracarboxylic acid alone or in combination with at least one of tartaric acid, a fluorocomplex salt and a specific organic carboxylic acid. The specific organic carboxylic acid is expressed by the general formula:C.sub.m H.sub.n (COOH).sub.x (OH).sub.y