公开(公告)号：US3703570A

公开(公告)日：1972-11-21

申请号：US3703570D

申请日：1969-12-29

Applicant: KALLE AG

Inventor： BUSCH WALTER ,  SCHWARZER FRANZ

IPC: B01D65/02 ,  B01D71/56 ,  C08J9/28 ,  B29D7/22 ,  B29D27/04 ,  C08G20/10

CPC classification number: B01D71/56 ,  C08J9/28 ,  C08J2201/0544

Abstract: THIS INVENTION RELATES TO AN IMPROVEMENT IN THE PROCESS FOR THE PREPARATION OF A SEMIERMEABLE MEMBRANE BY POURING A LAYER OF A SOLUTION OF A PLASTIC ONTO A SUPPORT, EVAPORATING A PORTION OF THE SOLVENT FROM THE LAYER WHEREBY THE LAYERS IS PROVIDED WITH A SURFACE LAYER POOR IN SOLVENT, AND REMOVING THE REMAINING SOLVENT FROM THE LAYER BY MEANS OF A LIQUID WHICH IS MISCIBLE WITH THE SOLVENT BUT DOES NOT DISSOLVE THE PLASTIC, THE IMPROVEMENT COMPRISNG EMPLOYING AS THE PLASTIC AT LEAST ONE POLYAMIDE WHICH IS A POLYMERIZED B-LACTAM UNSUBSTITUTED AT THE NITROGEN ATOM.

公开(公告)号：US3697303A

公开(公告)日：1972-10-10

申请号：US3697303D

申请日：1969-09-29

Applicant: KALLE AG

Inventor： BUSCH WALTER ,  KRAMER HEINZ ,  LIND ERWIN ,  MESSNER DIETER

IPC: B01D1/06 ,  B05D1/00 ,  B05D3/14 ,  C25D13/00 ,  B44D1/06

CPC classification number: B01D1/06 ,  B05D1/007 ,  B05D3/142 ,  C25D13/00

Abstract: THIS INVENTION RELATES TO A PROCESS FOR COATING THE SURFACE OF A MATERIAL WITH AN ELECTRICALLY CONDUCTIVE, SEMICONDUCTIVE, OR NON-CONDUCTIVE SUBSTANCE, IN WHICH PROCESS EITHER A HIGHLY INSULATING BASE MATERIAL OR BASE MATERIAL WITH A HIGHLY INSULATING BACKING IS COMPLETELY DISCHARGED, THE SURFACE OF THE MATERIAL IS THEN ELECTRICALLY CHARGED BY MEANS OF A DIRECT-CURRENT CORONA DISCHARGE, AND COATED WITHIN A FIELD OF UNIFORM FIELD STRENGTH DISTRIBUTION WITH THE SUBSTANCE DISPERSED IN A DIELECTRIC LIQUID, WHILE THE MATERIAL IS IN CLOSE CONTACT WITH AN ELECTRICALLY CONDUCTIVE SUPPORT.

公开(公告)号：CA913866A

公开(公告)日：1972-11-07

申请号：CA913866D

Applicant: KALLE AG

Inventor： BUSCH WALTER ,  SCHWARZER FRANZ

IPC: B01D71/56 ,  C08J9/28

公开(公告)号：CA905228A

公开(公告)日：1972-07-18

申请号：CA905228D

Applicant: KALLE AG

Inventor： BUSCH WALTER ,  MESSNER DIETER

公开(公告)号：CA901401A

公开(公告)日：1972-05-30

申请号：CA901401D

Applicant: KALLE AG

Inventor： BUSCH WALTER ,  MESSNER DIETER ,  LIND ERWIN ,  KRAMER HEINZ

IPC: B01D1/06 ,  B05D1/00 ,  B05D3/14 ,  C25D13/00