PRODUCTION OF ELECTRICALLY CONDUCTIVE ACRYLIC FIBER

    公开(公告)号:JPS5545856A

    公开(公告)日:1980-03-31

    申请号:JP11863278

    申请日:1978-09-28

    Abstract: PURPOSE:The dope of acrylic polymer solution and a solution of polyether polymer cantaining carbon black are mixed with a specific static mixer in a pipe immediate before spinning, thus reducing the fluctuation in spinnability or spinnability fluctuation with the passage of time and producing title fiber of uniform quality. CONSTITUTION:Immediately before spinning, a solution of acrylic polymer and another solution of polyether polymer containing carbon black are mixed using a static mixer in pipe that has 30-33,000, preferably 130-8,000 partition layers. The clotting of the spinneret, the pressure rise at the spinneret is reduced compared when they are mixed by stirring and the spinning stability is noteciably improved. Further, throubles in yarn making as yarn break or filament wrapping on drawing decrease, the yarb productivity increases, the fluctuation of electric resistance between yarns lessens, thus giving said electrically conductive fiber with high fiber performance.

    BLOOD TREATMENT AND BLOOD TREATING DEVICE USING THE SAME

    公开(公告)号:JPH0898883A

    公开(公告)日:1996-04-16

    申请号:JP23527094

    申请日:1994-09-29

    Abstract: PURPOSE: To enhance the efficiency of removing materials such as amyloid protein and deteriorating materials by having a stage for dializing or filtering and dialyzing the blood with a selective sepn. membrane having an albumin removal rate of a prescribed value or above and a stage for replenishing the blood on the primary side of this selective sepn. membrane with albumin. CONSTITUTION: The blood is admitted from a blood introducing port 1 and is purified by a blood purifying device 3. The blood dialysis, blood filtration and dialysis or blood filtration is executed by the selective sepn. membrane 4 and the materials desired to be removed are introduced to the (b) side and the blood from which such materials desired to be removed are removed is introduced from the (a) side to a led-out blood flow rate sensor 22. The selective sepn. membrane 4 having the albumin removal rate of >=1.5% is used. The blood treating device is provided with a protein leaking rate sensor 25 and the albumin corresponding to the leaking rate is replenished by a protein replenishing pump 11 from a tank 12, by which the control of the protein amt. in the blood is executed.

    ACRYLIC FIBER WITH EXCELLENT HEAT RESISTANCE

    公开(公告)号:JPS5482433A

    公开(公告)日:1979-06-30

    申请号:JP14938477

    申请日:1977-12-14

    Abstract: PURPOSE:Two polymer components both of which mainly consist of acrylonitrile, contain a specific amount of sulfonic acid and the shrinking characteristics are different from each other are made into conjugated fibers of side-by-side structure wherein The one component has concave cross section and the other has convex cross section. Thereby producing high pilling-and heat resistant fibers with little reduction in shrinkage and elasticity. CONSTITUTION:Two polymer component the one of which contains more than 95 mole 70 of acrylonitrile and 120-230 milliequivalent amount. per the weigh of fibers, of sulfonic acid, the high-shrinkage component, the other contains more than 95 mole % of acrylonitrile and 18-100 milliequivalent amount of sulfonic acid, the low-shrinkage component, wherein, the ratio of the high-shrinkage component to the low-shrinkage one in sulfonic acid is 2-10, are made into conjugated fibers of side-by-side structure so that the high-shrinkage component has convex cross section and the low-shrinkage component has concave cross section.

    REVERSE OSMOSIS SEPARATOR
    26.
    发明专利

    公开(公告)号:JP2001347141A

    公开(公告)日:2001-12-18

    申请号:JP2001113662

    申请日:2001-04-12

    Abstract: PROBLEM TO BE SOLVED: To provide a separation method capable of more stably obtaining a low concentration solution from a high concentration solution in high yield, with less energy, at a lower cost and with high efficiency. SOLUTION: In the reverse osmosis membrane separator having reverse osmosis membrane module units arranged at multi-stages, the separator is provided with a pressure raising pump for feeding water to a reverse osmosis membrane module unit at the first stage, and a pressure raising pump for concentrated water provided in a concentrated water flow path between the reverse osmosis membrane module units, and a recovery device for recovering pressure energy of the concentrated water of a reverse osmosis membrane module unit at the final stage, and the recovery device is connected with the pressure raising pump for the feed water.

    ACRYLIC COMPOSITE STAPLE FIBERS HAVING IMPROVED PROPERTY

    公开(公告)号:JPS5536320A

    公开(公告)日:1980-03-13

    申请号:JP10630878

    申请日:1978-09-01

    Abstract: PURPOSE:The title staple fibers having limited dimensional difference between dry and wet states, sufficient water reversibility, and level dyeing property, high-quality luster and waxy touch. CONSTITUTION:Side-by-side composite fibers comprising at least two types of a crylonitrile polymers, wherein a highly-and a low-shrinkable components consist of a neutral monomer and a sulfonic acid group-containing monomer respectively, and the copolymerization ratios Hn and Ln (mole %) of the neutral monomers in both of the components, and those Hi and Li of the sulfonic acid group-containing monomers in the components satisfy formulas I, II, III, and IV. Li is preferably >=0.5.

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