公开(公告)号：US3660263A

公开(公告)日：1972-05-02

申请号：US3660263D

申请日：1969-10-28

Applicant: IBM

Inventor： AULETTA LUCIEN V ,  CORNISH BLAIR E ,  DAMM EUGENE P JR ,  FAIGENAUM MARK A ,  SIMON ANDREW M

IPC: C09D5/44 ,  B01K5/02 ,  C23B13/00

CPC classification number: C09D5/4473

Abstract: APPLICATION TECHNIQUES AND MATERIAL DESIGN PROPERTIES AND FORMULATIONS ARE DESCRIBED FOR ELECTROPHORETICALLY DEPOSITED HOSTILE ENVIRONMENT PROTECTIVE COATINGS FOR EXPOSED CRITICAL METALLIC SURFACES. FORMULATION PROPERTIES AND EXAMPLES OF ELECTROPHORETICALLY DEPOSITABLE AQUEOUS POLYMER LATICES AND/OR CO-BLENDS OF AQUEOUS POLYMER LATICES ARE DISCLOSED. SAID LATICES AND/OR LATICE BLENDS HAVING SUCH DESIRABLE COATING PROPERTIES AS LOW GAS TRANSMISSION, ADHESION, NON-FLAMMABILITY CRACK RESISTANCE, FLEXIBILITY, SELECTED AND USEFUL DYE COMPATIBILITY, REQUISITE THICKNESS, ELECTRICAL REQUIREMENTS AND CHEMICAL RESISTANCE, ARE ILLUSTRATED FOR THE GENERIC LATICE BLENDS, POLYVINYLIDENE CHLORIDE (SARAN) AND EPOXY ESTER.

公开(公告)号：US3645873A

公开(公告)日：1972-02-29

申请号：US3645873D

申请日：1969-06-30

Applicant: IBM

Inventor： CORNISH BLAIR E ,  DAMM EUGENE P JR ,  FAIGENBAUM MARK A

IPC: C25D13/04 ,  C25D15/00 ,  B01K5/02 ,  C23B13/00

CPC classification number: C25D15/00 ,  C25D13/04

Abstract: INSULATIVE FILM COATINGS FORMED UPON SEPARATED METAL WIRES BY ELECTROPHORETIC DEPOSITION FROM AQUEOUS POLYMER LATEX DISPERSIONS ARE FOUND TO BE CONJOINABLE INTO SUPPORTING STRUCTURES WHICH ARE THICK BY COMPARISON TO DIAMETERS OF ENCLOSED WIRES AND WHICH HAVE PRE-DETERMINABLE DIMENSIONAL PROPERTIES WHEN SOLIDIFIED. ELECTRICAL SIGNAL TRANSMISSION LINES ARE MADE AT REDUCED COST BY THIS PROCESS. WIRES IN SUCH LINES ARE HELD CLOSE TOGETHER WITHOUT TOUCHING AT SPACING DISTANCES HELD TO TIGHT TOLERANCES. THE ELECTROPHORETICALLY APPLIED INSULATING-SUPPORTING STRUC-

TURE OF THESE LINES CAN BE PROVIDED WITH SUCH OTHER DESIRABLE FEATURES AS INTERNAL CONTINUITY (I.E. CRACKFREE, VOID-FREE), THERMAL STABILITY, ABRASION RESISTANCE, HIGH DIELECTRIC STRENGTH, FLEXIBILITY, AND UNIFORM COHESION TO THE SUPPORTED WIRES.

公开(公告)号：US3607696A

公开(公告)日：1971-09-21

申请号：US3607696D

申请日：1968-10-21

Applicant: IBM

Inventor： CORNISH BLAIR E ,  DAMM EUGENE P JR ,  PHILLIPS SIDNEY L

IPC: F28F27/00 ,  C25D13/22 ,  B01K5/02 ,  C23B13/00

CPC classification number: C25D13/22

Abstract: Normally difficult to remove coatings of certain polymeric substances, including a polytetrafluoroethylene, are removed by the presently disclosed electrical stripping technique. The coatings are deposited by electrophoresis on a conductive surface of an object used as an electrode and stripped or removed from the same surface by applying a voltage of opposite polarity while the coating particles are still in an uncoalesced condition due to retention of electrolyte fluid between the particles. Certain of these coatings are strippable even after removal of the base electrode from the electrolyte medium, provided that sufficient electrolyte moisture is retained to keep the coating in a solvated condition until reimmersion and application of the reverse voltage. The deposition and stripping actions are repeatable an indefinite number of times for particular coating substances under particular conditions. This is used in a closed system to construct specific devices based on selectively variable thermal resistance effects and visual indication effects. These effects have an associated memory property in the sense that the effect persists indefinitely upon removal of the electromotive force which is depositing or stripping the coating.