公开(公告)号：EP1404165A4

公开(公告)日：2007-04-18

申请号：EP02738844

申请日：2002-06-28

Applicant: NITTO DENKO CORP

Inventor： KAWASHIMA TOSHIYUKI ,  TAHARA NOBUHARU ,  IKEDA KENICHI

IPC: H05K3/42 ,  H05K3/40 ,  H05K3/46

CPC classification number: H05K3/462 ,  H05K3/4069 ,  H05K3/4614 ,  H05K3/4623 ,  H05K3/4626 ,  H05K2201/0116 ,  H05K2201/09536 ,  H05K2201/10378 ,  H05K2203/1147 ,  Y10T29/49126 ,  Y10T29/49128 ,  Y10T29/49144 ,  Y10T29/49149 ,  Y10T29/49155 ,  Y10T29/49165 ,  Y10T428/31511

Abstract: A method for manufacturing a multilayer wiring board comprises a step of alternately stacking prepreg sheets (1) of a resin porous film impregnated with thermosetting resin and double-sided wiring boards (10) having an insulating layer (11) on both sides of which wiring patterns (12) are formed, and heating and compressing the stack into one piece. The multilayer wiring board is advantageous in mass production because the gap for forming the insulating layer is easily controlled. The whole of the wiring board can be thin, and the planarization of the surface of the wiring board is easy.

公开(公告)号：EP0888810A4

公开(公告)日：2001-08-22

申请号：EP97907348

申请日：1997-03-17

Applicant: NITTO DENKO CORP

Inventor： HACHISUKA HISAO ,  IKEDA KENICHI

IPC: B01D67/00 ,  B01D69/12 ,  C02F1/44 ,  B01D69/02 ,  B01D61/02 ,  B01D71/56

CPC classification number: B01D67/0088 ,  B01D69/125 ,  C02F1/441 ,  Y02A20/131

Abstract: A reverse osmosis composite membrane that has a high salt rejection, a high water permeability, and a high fouling tolerance, and permits practical desalination at a relatively low pressure is provided by coating the surface of a reverse osmosis membrane of aromatic polyamide with polyvinyl alcohol (PVA), for example, and controlling the surface zeta potential of the separation layer within +/- 10mV at pH 6. This reverse osmosis composite membrane is electrically neutral and controls the electrical adsorption of membrane-fouling substances having a charge group present in water. Therefore, a high separation property can be maintained without fouling the membrane even if water containing a surfactant or a transition metal component is supplied as raw water.