摘要:
A surface which has excellent adhesivity to paint, good corrosion resistance, and low friction may be obtained on drawn and iron tin plated cans by spraying the can surface for a time between 5 and 60 seconds at a temperature between 40.degree. and 60.degree. C. with an aqueous treating liquid having a pH between 4 and 6 and comprising (i) orthophosphoric acid and/or condensed phosphoric acids and (ii) a concentration of at least 0.1 w/o of a water soluble oligomer according to the general formula: ##STR1## wherein n is a number with a value between 10 and 30 and each of X and Y independently represents hydrogen or a group Z, wherein Z has a chemical composition conforming to the general formula: ##STR2## wherein each of R.sub.1 and R.sub.2 is an alkyl or hydroxyalkyl group having from 1 to 5 carbon atoms, except that at least 25% of the total of all the X and Y groups in the oligomer are Z rather than hydrogen; and drying the surface thus sprayed, optionally after having first rinsed the sprayed surface with water.
摘要:
A corrosion resistant film with a low coefficient of friction that facilitates automatic conveying can be formed on the surface of tin-plated steel or of aluminum, particularly DI cans of one of these types of metal, by contacting the aluminum or the tin plated steel with an aqueous liquid composition having a pH in the range from 2.0 to 6.5 and containing:(A) from 1 to 30 g/L of phosphate ions,(B) from 0.1 to 10 g/L of condensed phosphate ions, and(C) from 0.1 to 20 g/L as solids of water-soluble polymers of N-vinylphenol substituted on the phenolic rings with dialkylaminomethyl groups.
摘要:
Problems with previously known aqueous acidic rinsing solutions for aluminum after shaping while using surface lubricants are avoided by use of a solution which contains water and (A) orthophosphoric acid in an amount to give a stoichiometric equivalent of 3.0 to 50 g/L as PO.sub.4.sup.-3, (B) an aluminum ion sequestrant component in an amount of 0.01 to 10.0 g/L; and (C) 20 to 170 ppm of ferric ion. The ferric ions act to inhibit corrosion of the stainless steel process equipment. Preferably the solution also contains 0.1 to 1.0 g/L of H.sub.2 O.sub.2, NO.sub.2.sup.-1 ions, or a mixture thereof to reoxidize ferrous ions formed by reduction of ferric ions during use of the solution and thus maintain the concentration of ferric ions above 20 ppm at all times. The solution may also contain surfactant and up to 10 g/L of dissolved aluminum ions.
摘要:
A conversion coating, predominantly consisting of tin phosphate, can be deposited on steel or tin plated steel surfaces by contact with a solution containing phosphate ions, tin ions, an oxidizing agent such as chlorate, and a chelating agent for the tin ions, the latter to prevent the rapid loss of tin from the solution that otherwise would occur. A coating that confers excellent resistance to corrosion in hot water is formed on drawn and ironed thinly tin plated cans.
摘要:
A highly corrosion-resistant, paint-adherent, and lubricating polymer-containing coating on a metal surface can be formed by contact with an aqueous solution (pH=2.0 to 6.5) that contains an acidic compound and polymer with the following formula (I): ##STR1## in which the X bonded to the phenyl ring in formula (I) represents a hydrogen atom, a hydroxyl group, a C.sub.1 to C.sub.5 alkyl group, a C.sub.1 to C.sub.5 hydroxyalkyl group, a C.sub.6 to C.sub.12 aryl group, a benzil group, a benzal group, an unsaturated hydrocarbon moiety condensed to the phenyl ring so as to form a naphthalene ring, or a group corresponding to formula (II): ##STR2## in which R.sup.1 and R.sup.2 in formula (II) each independently represent a hydrogen atom, a hydroxyl group, a C.sub.1 to C.sub.10 alkyl group, or a C.sub.1 to C.sub.10 hydroxyalkyl group; the Y.sup.1 and Y.sup.2 bonded to the phenyl ring in formulas (I) and (II) each independently represents a hydrogen atom or a group Z according to one of formulas (III) and (IV): ##STR3## in which each of R.sup.3, R.sup.4, R.sup.5, R.sup.6. and R.sup.7 in formulas (III) and (IV) independently represents a C.sub.1 to C.sub.10 alkyl group or a C.sub.1 to C.sub.10 hydroxyalkyl group; the X's bonded to the phenyl rings in the polymer molecule may all be identical or may differ from one another, each of the Y.sup.1 's and Y.sup.2 's bonded to the phenyl rings in the polymer molecule may all be identical or may differ from one another, the average value for the number of Z groups substituted on each phenyl ring in said polymer molecule is 0.2 to 1.0; and n has a value of 2 to 50.
摘要:
A sintering compound containing a sinterable powder and a binder removable in a debinding step is injected into a metal mold set provided with a sintering compound injecting mold, in a sintering compound molding step (S104). An add-on forming compound which becomes removable or separable from the sintering compound injection molded body in the debinding step or the sintering step is injected into the metal mold set provided with an add-on mold in an add-on forming step (S102). The sintering compound injection molded body and the add-on are formed integrally with each other in the metal mold set. The integral formation of the add-on and the sintering compound injection molded body enables to prevent damage during release from the mold and make easy to handle the injection molded body.
摘要:
A power supply control method is adapted to a current-to-voltage conversion circuit which has a transformer for converting and outputting an input power. The power supply control method stops a power supply to the transformer when an output side of the current-to-voltage conversion circuit is in a no-load state, and starts a power supply to the transformer when an external voltage is applied to the output side of the current-to-voltage conversion circuit.
摘要:
Provided are sulfonyldiazomethane compounds and photoacid generators suited for resist materials which generate less foreign matters after application, development and peeling, and in particular, are excellent in the pattern profile after the development; and resist materials and patterning process using them. Provided are sulfonyldiazomethane compounds represented by formula (1): Also provides are photoacid generators containing the sulfonyldiazomethane compounds, and a chemical amplification resist material comprising (A) a resin which changes its solubility in an alkali developer by action of an acid, and (B) a sulfonyldiazomethane compound of formula (1) capable of generating an acid by exposure to radiation. Provided is a patterning process comprising steps of applying the above-described resist material onto a substrate to form a coating, heating the coating, exposing the coating, and developing the exposed coating in a developer after an optional heat treatment.
摘要:
A sintering compound containing a sinterable powder and a binder removable in a debinding step is injected into a metal mold set provided with a sintering compound injecting mold, in a sintering compound molding step (S104). An add-on forming compound which becomes removable or separable from the sintering compound injection molded body in the debinding step or the sintering step is injected into the metal mold set provided with an add-on mold in an add-on forming step (S102). The sintering compound injection molded body and the add-on are formed integrally with each other in the metal mold set. The integral formation of the add-on and the sintering compound injection molded body enables to prevent damage during release from the mold and make easy to handle the injection molded body.
摘要:
A sustained hair growth preparation comprising minoxidil and dipropylene glycol makes it possible to retain the absorbed minoxidil in the dermis and to increase the concentration of the minoxidil around the hair bulbs which are the hair growing sites, thereby making it possible to give a sufficient hair growth effect.