摘要:
A molten steel pouring nozzle which comprises: a nozzle body comprising an alumina-graphite refractory, having, along the axis thereof, a bore through which molten steel flows; and an outer refractory layer arranged on an outside portion of the nozzle body so as to be integral with the nozzle body and to be flush with an outer surface thereof, the outer refractory layer being arranged on a portion of the outside portion of the nozzle body, which portion is in contact, when a lower portion of the molten steel pouring nozzle is immersed into molten steel, with the open air without being immersed into the molten steel, and the outer refractory layer consisting essentially of:______________________________________ alumina (Al.sub.2 O.sub.3) from 40 to 75 wt. %, carbon (C) from 10 to 30 wt. %, silica (SiO.sub.2) from 1 to 30 wt. %, silicon carbide (SiC) from 1 to 20 wt. %, and low-melting glass from 1 to 10 wt. %. ______________________________________
摘要:
An aqueous liquid dye composition comprising 5 to 50% by weight of a mixture of at least one dye represented by the following formula (I), ##STR1## wherein A is a phenylene or naphthylene group unsubstituted or substituted by at least one member selected from methyl, methoxy, sulfo and carboxy, R is methyl or carboxy, Y.sub.1, Y.sub.2 and Y.sub.3 independently of one another are each hydrogen, chloro, methyl or sulfo, and Z is a group splittable by the action of an alkali, and at least one dye represented by the following formula (II), ##STR2## where A, R, Y.sub.1 Y.sub.2 and Y.sub.3 are as defined above, which can be stored for a long period of time even at lower temperatures such as 5.degree. C. or lower without crystallization of the dye.
摘要:
A granular reactive dye composition comprising a water-soluble reactive dye and at least one granulating auxiliary agent selected from the group consisting of compounds of the following formula (3), ##STR1## wherein R is --C.sub.s H.sub.2s+1, in which s is an integer of 5 to 20 and wherein the content of the granulating auxiliary agent is 5 parts by weight or less per 100 parts by weight of the reactive dye.
摘要:
A pressure tube includes a central tube section (10), an intake tube section (12) and a flared tube section (14). Flared tube section (14) includes a flange ring (54) with a shell (64) secured thereto. A contact ring (76) is received in an annular recess (82) of flange ring (54).
摘要:
An aqueous liquid composition comprising at least one dye represented by the following formula in a free acid form,D--(SO.sub.2 CH.sub.2 CH.sub.2 OSO.sub.3 H).sub.nwherein D is an organic dye residue having 1 to 3 sulfo groups, and n is 1 or 2, in an amount of 5 to 50% by weight, a buffer in an amount of not less than 0.1% by weight but less than 1% by weight, and a substance inert to the above dye in an amount of 0 to 10% by weight, the balance being water, and a pH value of the aqueous liquid composition ranging from 2.5 to 5.5, whcih can be stored for a long period of time even at low and high temperatures without physical and chemical changes.
摘要:
A pressure tube includes a central tube section (10), an intake tube section (12) and a flared tube section (14). Flared tube section (14) includes a flange ring (54) with a shell (64) secured thereto. A contact ring (76) is received in an annular recess (82) of flange ring (54). Alternatively, a flared tube section (90) has an outer circumferential surface (96) that cooperates with a conical flange ring (110) that has an inner conical surface (114). The flange rings (54, 110) engage a flange (86) in the dome (85) of a pressure vessel.
摘要:
A granular type reactive dye composition containing a reactive dye, an inorganic salt and water, the water content being from 4.5 through 15% by weight and the inorganic salt content being 20% by weight or less, both based on the weight of the composition, which is excellent in storage stability, compatibility with water and hot water, and reproducibility, when used for dyeing or printing cellulose fibers.
摘要:
An aqueous liquid composition containing a reactive dye of the following formulaD--SO.sub.2 X).sub.nwherein D is an organic dye residue having 1 to 3 sulfonic acid grups, X is a group of --CH.dbd.CH.sub.2 or --CH.sub.2 CH.sub.2 Y in which Y is a splittable group by the action of an alkali, and n is a number of 1 or 2, in an amount of 5 to 50% by weight based on the weight of the composition, which composition is improved in storage stability at a low temperature, is produced by preparing an undemimeralized agueous solution of the dye of the above formula, dissolving at least one additive selected from lactams and aminoalcohols in the solution, controlling the resulting solution to a temperature of -10.degree. C. to 5.degree. C. to crystallized inorganic salts contained therein, and separating the crystallized inorganic salts, the said additive being used in an amount of 0.1 to 20% by weight based on the weight of the composition.
摘要:
An aqueous liquid dye composition comprising 5 to 50% by weight of a reactive dye represented by the following formula, ##STR1## wherein D denotes a sulfo group-containing organic dye residue, R.sub.1 and R.sub.2 independently of one another denote a hydrogen atom or a C.sub.1 to C.sub.4 alkyl group unsubstituted or substituted with a halogen atom or a hydroxyl, cyano, C.sub.1 to C.sub.4 alkoxy, carboxy, carbamoyl, C.sub.1 to C.sub.4 alkoxycarbonyl, C.sub.1 to C.sub.4 alkylcarbonyloxy, sulfo or sulfamoyl group, A denotes a phenylene group unsubstituted or substituted with one or two members selected from methyl, ethyl, methoxy, ethoxy, chlorine, bromine and sulfo, or a naphthylene group unsubstituted or substituted with one sulfo group, X denotes a halogen atom, and Y is a group of --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub.2 CH.sub.2 Z in which Z is a splittable group by the action of an alkali, 0.1 to 10% by weight of .epsilon.-caprolactam and the balance of water, the composition having a pH value of 3 to 7, which can be stored for a long period of time at a low temperature such as 5.degree. C. or lower without deterioration in its solution state.
摘要:
An aqueous liquid dye composition comprising 10 to 50% by weight of a fiber-reactive copper phthalocyanine dye represented by the following formula (I) in the form of a free acid, ##STR1## wherein Y is a group of --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub.2 CH.sub.2 Z, in which Z is a splittable group by the action of an alkali, and m and n are independently a number of 1 to 3, provided that they satisfy the following formula, 2