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    Manufacture of phosphor screens
    1.
    发明授权
    Manufacture of phosphor screens 失效
    磷屏幕的制造

    公开(公告)号：US3585034A

    公开(公告)日：1971-06-15

    申请号：US3585034D

    申请日：1967-04-03

    Applicant: GAF CORP

    Inventor： LEVINOS STEVEN

    IPC: C08F2/50 ,  G03F7/029 ,  H01J29/22 ,  G03C1/68 ,  G03C5/00

    CPC classification number: H01J29/225 ,  G03F7/029 ,  Y10S430/116

    Abstract: PHOTOSENSITIVE COMPOSITIONS FOR COLOR TELEVISION PICTURE TUBE MANUFACTURE COMPRISING AN ETHYLENICALLY UNSATURATED MONOMER MATERIAL AND A CATALYST SYSTEM COMPRISING (A) A STABILIZED DIAZONIUM SALT WHICH FUNCTIONS AS AN ELECTRONACCEPTOR AND (B) A PHOTOSENSITIVE CO-CATALYST SELECTED FROM THE GROUP CONSISTING OF (1) A COMPLEX FERRIC SALT CONTAINING AN ELECTRON-DONATING GROUP AND (2) A MIXTURE COMPRISING A SIMPLE FERRIC SALT AND AN ORGANIC POLYCARBOXYLIC ACID CAPABLE OF REDUCING SAID SIMPLE FERRIC SALT TO FERROUS WHEN SUBJECTED TO ACTINIC RADIATION.

    Photoelectropolymerization
    3.
    发明授权
    Photoelectropolymerization 失效
    光电聚合

    公开(公告)号：US3600173A

    公开(公告)日：1971-08-17

    申请号：US3600173D

    申请日：1967-06-13

    Applicant: GAF CORP

    Inventor： LEVINOS STEVEN

    IPC: C08F2/00 ,  C08F2/50 ,  G03G17/02 ,  G03C5/00

    CPC classification number: G03G17/02

    Abstract: METHOD OF PHOTOELECTROPOLYMERIZATION WHEREIN INCIDENT LIGHT ENERGY IS CONVERTED TO ELECTRICAL ENERGY IN ACCORDANCE WITH IMAGE BEING REPRODUCED, SAID ELECTRICAL ENERGY BEING UTILIZED TO GENERATE AN ELECTRIC CURRENT IN AN ELECTRICALLY CONDUCTIVE VINYL MONOMER LAYER AND WHEREIN GENERATION OF POLYMERIZATION CATALYST OCCURS ELECTROLYTICALLY THEREBY LEADING TO FORMATION OF A POLYMERIC RESIST-IMAGE IN ACCORDANCE WITH THE ELECTRICAL ENERGY, THE CATALYST GENERATING MATERIAL COMPRISING A FLUOBORATE OR FLUOSILICATE SALT OF A LIGHT-SENSITIVE DIAZOTIZED PRIMARY AROMATIC AMINE.

    Offset printing plates
    4.
    发明授权
    Offset printing plates 失效
    偏移打印板

    公开(公告)号：US3474719A

    公开(公告)日：1969-10-28

    申请号：US3474719D

    申请日：1966-07-05

    Applicant: GAF CORP

    Inventor： LEVINOS STEVEN

    IPC: B41N3/03 ,  G03C1/52 ,  G03F7/10

    CPC classification number: G03F7/0163 ,  B41C1/1016 ,  B41C2201/02 ,  B41C2201/04 ,  B41C2201/14 ,  B41C2210/02 ,  B41C2210/04 ,  B41C2210/06 ,  B41C2210/22 ,  B41C2210/24 ,  B41N3/036

    Abstract: 1,177,527. Photo-sensitive materials. GAF CORP. April 14, 1967 [April 15, 1966; July 5, 1966], No. 17346/67. Heading G3C. A photo-sensitive material comprises a metal support coated with an alkali-soluble intermediate layer consisting of a copolymer with 80-99% mole per cent of acrylate units and 1-20% of acrylic acid units, and with a layer containing a quinone diazide and a water-insoluble, alkali-resistant polymer. Specified polymers are polyvinyl acetate, polymethyl acrylate or methacrylate, cellulose ethers and esters and phenolmodified coumarone-indene resins. The support may be aluminium, copper, coated aluminium or chromium copper-aluminium. The material is imagewise exposed and developed with a polyhydric alcohol to remove the un-exposed areas to produce a negative printing plate; the copolymer layer being hydrophilic. If the developer contains an amine, the copolymer and light-sensitive layers are removed in the exposed areas and the bared metal surface etched to produce either a positive or a negative printing plate.

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