摘要:
This invention relates to a method for inhibiting corrosion of a metal surface comprising coating same with a composition containing an inorganic pigment, more particularly a rust-inhibiting pigment, consisting substantially of a vitrified substance, containing a definite range of P.sub.2 O.sub.5 and MgO and having a definite range of a specific area thereof.
摘要:
A method of producing suspension polymerized vinyl chloride polymers or copolymers of improved flowability by polymerizing vinyl chloride monomers alone, or in a mixture with other monomers, in an aqueous medium, to form a slurry of polymer suspended in said aqueous medium. After removing unreacted monomers, a polyhydric alcohol is added to the slurry containing the suspension polymerized polymer or to a product obtained after the dewatering of the slurry, in an amount of 0.001 to 0.5 parts by weight based on 100 parts by weight of the vinyl chloride polymer or copolymer suspended in the slurry.
摘要:
To provide an apparatus and a method for knitting fabric using elastic yarns, in which the elastic yarns are able to be used while correcting the difference between the set tension and the actual tension without being subject to a lowered knitting efficiency or restrictions to knitting patterns.In a knitting machine 1, a tension meter 7 detects the actual tension T2 of a rubber yarn 5 when a carriage 3 reverses the running direction outside the knitting width of a fabric 9. The yarn sending length F at which the rubber yarn 5 is sent out from a yarn sending device 8 to a yarn route pathway for each knitting course is able to be obtained in advance as the length of the rubber yarn 5 consumed under the designated tension T1 for each knitting course. The yarn sending length F is corrected in such a manner that the difference between natural lengths L1, L2 of the rubber yarn 5, existing in the yarn route pathway under the set tension T1 and the actual tension T2, decreases.
摘要:
To provide an apparatus and a method for knitting fabric using elastic yarns, in which the elastic yarns are able to be used while correcting the difference between the set tension and the actual tension without being subject to a lowered knitting efficiency or restrictions to knitting patterns.In a knitting machine 1, a tension meter 7 detects the actual tension T2 of a rubber yarn 5 when a carriage 3 reverses the running direction outside the knitting width of a fabric 9. The yarn sending length F at which the rubber yarn 5 is sent out from a yarn sending device 8 to a yarn route pathway for each knitting course is able to be obtained in advance as the length of the rubber yarn 5 consumed under the designated tension T1 for each knitting course. The yarn sending length F is corrected in such a manner that the difference between natural lengths L1, L2 of the rubber yarn 5, existing in the yarn route pathway under the set tension T1 and the actual tension T2, decreases.