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    • 5. 发明授权
    • Cationic polymer emulsion
    • 阳离子聚合物乳液
    • US4308189A
    • 1981-12-29
    • US191665
    • 1980-09-29
    • Tohei MoritaniTakeshi MoritaniJunnosuke YamauchiYoshinari TanakaMakoto Shiraishi
    • Tohei MoritaniTakeshi MoritaniJunnosuke YamauchiYoshinari TanakaMakoto Shiraishi
    • C08F2/28C08F261/04
    • C08F2/28
    • Cationic emulsions are obtained by the emulsion polymerization or copolymerization of ethylenically unsaturated monomers such as vinyl acetate, etc. in the presence of a cationic group-modified polyvinyl alcohol (PVA). Typical cationic group-modified PVA are the modified PVA's which contain a copolymeric unit having one of the following formulas: ##STR1## wherein R.sup.1 is H or lower alkyl; B is ##STR2## R.sup.2, R.sup.3 and R.sup.4 are each lower alkyl (substituted or unsubstituted) and X is an anion forming a salt with the ammonium N; and A is an inert bivalent organic group linking the N atom in B to the N atom in the amide group; ##STR3## wherein, in formulas (II) and (III), R.sup.5, R.sup.6 and R.sup.7 are each H, lower alkyl or phenyl; R.sup.8 is lower alkyl; and Y is an anion forming a salt with the imidazolinium N atom. Particularly desirable are the cationic group-modified PVA's containing the copolymeric unit (I) wherein A is ##STR4## R.sup.2, R.sup.3 and R.sup.4 each is methyl and X is chlorine, or wherein R.sup.1 is methyl, A is --CH.sub.2 --CH.sub.2 --CH.sub.2 --, R.sup.2, R.sup.3 and R.sup.4 in B are each methyl and X is chlorine, and cationic group-modified PVA's containing the copolymeric unit (II) or (III) wherein R.sup.5 and R.sup.8 are each methyl and R.sup.6 and R.sup.7 are each hydrogen. The polymers of these cationic emulsion have superior binding properties to substrates such as pulp fibers, textile fibers, glass, and the like.
    • 通过在阳离子基团改性的聚乙烯醇(PVA)的存在下,通过烯属不饱和单体如乙酸乙烯酯等的乳液聚合或共聚获得阳离子乳液。 典型的阳离子基团改性的PVA是包含具有下式之一的共聚单元的改性PVA:其中R 1是H或低级烷基; B是R 2,R 3和R 4各自是低级烷基(取代或未取代的),X是与铵形成盐的阴离子; A是将B中的N原子与酰胺基中的N原子连接的惰性二价有机基团; (II)其中,在式(II)和(III)中,R 5,R 6和R 7各自为H,低级烷基或苯基; R8是低级烷基; Y是与咪唑啉鎓N原子形成盐的阴离子。 特别优选的是含有共聚单元(I)的阳离子基团改性的PVA,其中A为R 2,R 3和R 4各自为甲基,X为氯,或其中R 1为甲基,A为-CH 2 -CH 2 -CH 2 - ,B中的R 2,R 3和R 4各自为甲基,X为氯,和含有共聚单元(II)或(III)的阳离子基团改性的PVA,其中R 5和R 8各自为甲基,R 6和R 7各自为氢。 这些阳离子乳液的聚合物对纸浆纤维,纺织纤维,玻璃等基材具有优异的粘合性。
    • 6. 发明授权
    • Metal powder production apparatus
    • 金属粉末生产设备
    • US07485254B2
    • 2009-02-03
    • US11641428
    • 2006-12-19
    • Koei NakabayashiMitsutoyo TanakaTokihiro ShimuraYoshinari Tanaka
    • Koei NakabayashiMitsutoyo TanakaTokihiro ShimuraYoshinari Tanaka
    • C21C1/00B22F9/06
    • B22F9/082
    • A metal powder production apparatus includes a supply part for supplying molten metal and a nozzle having a first member and a second member by which an orifice for injecting water is defined. The first member has a gradually reducing inner diameter portion. A heat insulating layer for cutting off radiant heat emitted from the molten metal is formed on the gradually reducing inner diameter portion of the first member. the nozzle is configured to ensure that the gradually reducing inner diameter portion is prevented, under an action of the heat insulating layer, from being thermally deformed by the radiant heat of the molten metal but a region of the first member near the orifice is thermally deformed in such a direction as to reduce a size of the orifice by absorbing the radiant heat of the molten metal, whereby the orifice can be restrained from being enlarged by the pressure of the water passing through the orifice.
    • 一种金属粉末生产设备包括用于供应熔融金属的供应部件和具有第一部件和第二部件的喷嘴,通过该第二部件限定了用于喷射水的喷嘴。 第一构件具有逐渐减小的内径部分。 在第一构件的逐渐减小的内径部分上形成用于切断从熔融金属发出的辐射热的隔热层。 喷嘴构造成确保在绝热层的作用下防止逐渐减小的内径部分被熔融金属的辐射热引起热变形,但是孔口附近的第一部件的区域发生热变形 在通过吸收熔融金属的辐射热来减小孔口的尺寸的方向上,由此可以通过通过孔口的水的压力来限制孔口的扩大。
    • 7. 发明申请
    • Metal powder production apparatus
    • 金属粉末生产设备
    • US20070138713A1
    • 2007-06-21
    • US11641520
    • 2006-12-19
    • Koei NakabayashiMitsutoyo TanakaTokihiro ShimuraYoshinari Tanaka
    • Koei NakabayashiMitsutoyo TanakaTokihiro ShimuraYoshinari Tanaka
    • C21C7/00
    • B22F9/082
    • A metal powder production apparatus includes a supply part for supplying molten metal and a nozzle provided below the supply part. The nozzle is provided with a flow path through which the molten metal supplied from the supply part can pass, the flow path having a gradually reducing inner diameter portion whose inner diameter is gradually reduced in a downward direction. The nozzle is further provided with an orifice opened at a bottom end of the flow path and adapted to inject fluid toward the flow path. The nozzle has a first member and a second member provided below the first member with a space left between the first member and the second member, wherein the orifice is defined by the first member and the second member. A clamp for restraining the orifice from being enlarged by the pressure of the fluid passing through the orifice is provided on the nozzle.
    • 金属粉末生产设备包括用于供应熔融金属的供应部分和设置在供应部分下方的喷嘴。 喷嘴设置有从供给部供给的熔融金属能够通过的流路,该流路具有内径逐渐减小的逐渐减小的内径部。 喷嘴还设置有在流动路径的底端处开口并适于朝向流动路径注入流体的孔口。 喷嘴具有第一构件和第二构件,第二构件设置在第一构件下方,在第一构件和第二构件之间留有空间,其中孔由第一构件和第二构件限定。 在喷嘴上设置有用于限制孔口被通过孔口的流体的压力扩大的夹具。
    • 10. 发明授权
    • Metal powder production apparatus
    • 金属粉末生产设备
    • US07553443B2
    • 2009-06-30
    • US11641421
    • 2006-12-19
    • Koei NakabayashiMitsutoyo TanakaTokihiro ShimuraYoshinari Tanaka
    • Koei NakabayashiMitsutoyo TanakaTokihiro ShimuraYoshinari Tanaka
    • C21C1/00B22F9/06
    • B22F9/082
    • A metal powder production apparatus includes a supply part for supplying molten metal and a nozzle provided below the supply part. The nozzle is provided with a flow path defined by an inner circumferential surface of the nozzle through which the molten metal supplied from the supply part can pass. The inner circumferential surface of the nozzle has a gradually reducing inner diameter portion whose inner diameter is gradually reduced in a downward direction. The nozzle is further provided with an orifice opened at a bottom end of the flow path and adapted to inject water toward the flow path. The nozzle has a first member having the gradually reducing inner diameter portion and a second member provided below the first member with a space left between the first member and the second member. The orifice is defined by the first member and the second member. A heat absorption body is provided on the first member. The absorption body serves as a restraint means for, when heated, deforming a surrounding region of the gradually reducing inner diameter portion of the first member to thereby restrain the orifice from being enlarged by the pressure of the water passing through the orifice.
    • 金属粉末生产设备包括用于供应熔融金属的供应部分和设置在供应部分下方的喷嘴。 喷嘴设置有由喷嘴的内周面限定的流路,从供给部供给的熔融金属可以通过该流路。 喷嘴的内周面具有逐渐减小的内径部,其内径沿向下方向逐渐减小。 喷嘴还设置有在流动路径的底端处开口并且适于向流动路径注入水的孔口。 所述喷嘴具有第一部件,所述第一部件具有逐渐减小的内径部分,第二部件设置在所述第一部件的下方,在所述第一部件和所述第二部件之间留有空间。 孔由第一构件和第二构件限定。 在第一构件上设置吸热体。 吸收体用作约束装置,用于当加热时使第一构件的逐渐减小的内径部分的周围区域变形,从而通过通过孔口的水的压力来限制孔口扩大。