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    Lithium silicate glare-reducing coating and method of fabrication on a glass surface
    1.
    发明授权
    Lithium silicate glare-reducing coating and method of fabrication on a glass surface 失效
    硅酸钠玻璃减少涂料和玻璃表面制造方法

    公开(公告)号：US3635751A

    公开(公告)日：1972-01-18

    申请号：US3635751D

    申请日：1969-04-03

    Applicant: RCA CORP

    Inventor： LONG GEORGE E ,  GROVE FRANCIS D ,  BARTCH DONALD W

    IPC: C03C17/22 ,  C03C17/34 ,  H01J29/89 ,  B44D1/46 ,  B44D1/08

    CPC classification number: H01J29/896 ,  C03C17/22 ,  C03C17/3411 ,  C03C17/3417 ,  C03C2217/28 ,  C03C2218/113

    Abstract: A novel optical screen comprises, as its viewing surface, a hard, abrasion-resistant coating having a rough, glare-reducing surface and composed of a lithium silicate material. The screen may be prepared by a novel method comprising: (a) warming the surface of a glass support to about 30* to 100* C., (b) coating the warm surface with an aqueous solution containing about 1 to 10 weight percent of a lithium-stabilized silica sol, (c) drying the coating, and then (d) heating the dry coating at about 150* C. to 450* C.

    Abstract translation: 新型光学屏幕包括具有粗糙的防眩光表面并由硅酸锂材料构成的硬质耐磨涂层作为其观察表面。 屏幕可以通过新颖的方法制备，该方法包括：（a）将玻璃载体的表面加温至约30℃至100℃，（b）用含有约1-10重量％的 锂稳定的硅溶胶，（c）干燥涂层，然后（d）在约150℃至450℃加热干燥涂层。

    CRT WITH PERIPHERAL PLASTIC COATING AND METHOD OF MAKING SAME
    2.
    发明专利
    CRT WITH PERIPHERAL PLASTIC COATING AND METHOD OF MAKING SAME 未知

    公开(公告)号：CA1120990A

    公开(公告)日：1982-03-30

    申请号：CA314699

    申请日：1978-10-30

    Applicant: RCA CORP

    Inventor： DEAL SAMUEL B ,  BARTCH DONALD W

    IPC: H01J9/20 ,  H01J9/24 ,  H01J29/87 ,  H01J29/88

    Abstract: A CRT (cathode-ray tube) comprises an envelope including a glass faceplate panel and an adjoining glass funnel sealed to the panel, and an elastomeric coating of polyurethane around and adhered to external surfaces of the envelope. The coating may be produced by applying, drying and curing a coating of an aqueous emulsion of polyurethane on the desired external surfaces of the tube. The coating may extend from the panel as far back on the adjoining funnel as desired,and as far forward on the panel sidewalls and viewing window as desired. Also, the polyurethane band may be used in combination with a metal tension band.

    SPRAY METHOD FOR PRODUCING A GLARE-REDUCING COATING
    4.
    发明专利
    SPRAY METHOD FOR PRODUCING A GLARE-REDUCING COATING 未知

    公开(公告)号：CA949399A

    公开(公告)日：1974-06-18

    申请号：CA130618

    申请日：1971-12-20

    Applicant: RCA CORP

    Inventor： LONG GEORGE E III ,  BARTCH DONALD W

    IPC: B05D5/02 ,  C03C17/00 ,  C03C17/30 ,  H01J5/08

    Abstract: 1360182 Glare reducing coatings R C A CORPORATION 3 Feb 1972 [8 Feb 1971] 5099/72 Heading B2E A method of producing a glare reducing coating on a surface from a formulation of a siliceous polymer, an organic polymer and a volatile organic liquid vehicle for said polymers, by (a) producing a spray of descrete droplets of said formulation in a gas, (b) intercepting at least a portion of said spray upon said surface to produce a layer of droplets thereon, (c) volatilising substantially all the vehicle in said layer of droplets, leaving a substantially dry textured polymeric layer on said surface, and (d) baking said dry layer at 100 to 200‹C. The method is particularly useful for coating glass, G.R.T. faceplates. The organic polymer is preferably polyvinyl butyral alone or mixed with partially hydrolised polyvinyl acetate and the siliceous polymer is preferably the hydrolysis product of heating tetraethyl orthosilicate with HCl solution at 50‹C for 1 hr. once the heat of reaction is being released, then cooling to room temperature. The organic polymer may be natural or synthetic. Examples of such polymers listed in U.S. Specification 2,404,426 include resins made from cumarone; indene; acetylene optionally halogenated; olefin hydrocarbons, such as ethylene, or butadiene, optionally halogenated; olefin/sulphur dioxide; petroleum and derivatives thereof made by reaction with formaldehyde, acetaldehyde, metallic halides, sulphur or sulphur chloride; styrene and derivatives thereof; phenol-aldehyde; aldehydes; furfural; ketones; urea-formaldehydes such as thioureaformaldehyde, melamine-formaldehyde and dicyandiamide-formaldehyde; amine-aldehydes; sulphonamide-aldehydes; nitro resins; resins made from hydrazine and derivatives thereof, pyrozoles, pyridine, quinoline, pyrrole, indole or carboazole; resins from wood and carbohydrates; natural resins and esters thereof such as rosin, shellac and ester gum; polyesters; mixed polyester-polyamide resins; polyether resins, polyvinyl ethers, alcohols and esters; polyvinyl acetals; polyacrylic acids, anhydrides, esters, amides and homologues thereof; rubber and derivatives thereof; olefin-sulphide resins; phenol-sulphur and phenol-sulphur chloride resins; sulphur-aromatic amine resins; fratise; drying oil resins; cellulose and derivatives thereof such as esters and ethers; proteins such as casein, zinc and soyabean protein or leather. The vehicle may include a mixture of solvents with differing evaporation rates. The siliceous polymer may be one or more of acid polysilicic acid esters, such as those disclosed in U.S. Specification 2,404,426. The formulation may also contain dyes or fillers such as finely divided silica, silicon carbide or alumina.

    METHOD FOR PREPARING HAZE-RESISTANT LITHIUM-SILICATE GLARE-REDUCING COATING
    8.
    发明专利
    METHOD FOR PREPARING HAZE-RESISTANT LITHIUM-SILICATE GLARE-REDUCING COATING 未知

    公开(公告)号：CA1022810A

    公开(公告)日：1977-12-20

    申请号：CA202153

    申请日：1974-06-11

    Applicant: RCA CORP

    Inventor： DEAL SAMUEL B ,  BARTCH DONALD W

    IPC: H01J9/22 ,  C03C17/23 ,  H01J9/20 ,  H01J29/18 ,  C03C17/22

    Abstract: A glare-reducing coating, as for a viewing surface of a cathode-ray tube, is prepared by (a) warming the surface of a support to about 30 DEG to 100 DEG C, (b) coating the warm surface with an aqueous solution containing a lithium stabilized silica sol, (c) drying the coating, (d) baking the dry coating at about 150 DEG to 450 DEG C, and then (e) subsequent to said heating step (d), washing the dry coating with hot water. The coating may contain carbon particles or carbon particles and a color-correcting dye.

    METHOD FOR PREPARING THE VIEW-SCREEN STRUCTURE OF A CATHODE-RAY TUBE
    10.
    发明专利
    METHOD FOR PREPARING THE VIEW-SCREEN STRUCTURE OF A CATHODE-RAY TUBE 未知

    公开(公告)号：CA962539A

    公开(公告)日：1975-02-11

    申请号：CA126817

    申请日：1971-11-03

    Applicant: RCA CORP

    Inventor： DEAL SAMUEL B ,  BARTCH DONALD W

    IPC: H01J29/28

    Abstract: 1350501 Coated luminescent screens R C A CORPORATION 21 Oct 1971 [28 Dec 1970] 48933/71 Heading B2 [Also in Division H1] A method for providing a black carbon coating on a light reflective metal film covering a c.r.t. phosphor layer (e.g. mosaic of areas such as dots) comprises heating the phosphor layer and metal film to between 50‹C and 75‹C, depositing on the heated film a coating of an organic volatilizable film-forming material from an aqueous dispersion, and depositing upon the coated metal layer an overcoating of carbon particles deposited from a suspension substantially free of organic and inorganic binders. The structure reduces heat reflection to the shadow mask of a three beam colour TV c.r.t. for example. Reduction of electron scattering and secondary emission is also instanced. The organic film forming material may be an acrylic polymer, and the suspension may be amorphous carbon and graphite particles in an aqueous vehicle. There may be a further volatizible film between the metal film and the phosphor layer, and the structure may be heated to 400 to 450‹C in air to volatilize both films. The aqueous dispersion of the organic film-forming material and the carbon particle suspension are preferably deposited by spraying. The metal layer may be a 2500A Al film. In embodiments, the aqueous acrylic resin emulsion may contain, as well as solids, deionized water and red dye solution, amounts being specified, the latter facilitating later inspection. The resin emulsion may be principally ethyl acrylate, copolymerized with equal minor amounts of acrylic and methacrylic monomers and polymers. The carbon suspension may include, in specified amounts, aqueous suspension of colloidal graphite, deionized water, aqueous dispersion of carbon black, containing 0.5 wt. % dispersing agent such as sulfonated lignin and 0.1 wt. % wetting agent such as polyoxyethylene lauryl ether. Coating may be by automatic machinery. Another example includes a spray of acrylic resin solution, deionized water and Rhodemine dye powder and the barrier layer may also be an aqueous emulsion of polystyrene. The metal film has pores enabling escape of gases during baking. The carbon may be in toluene, xylene or dispersed in water, preferably with wetting and dispersing agents. Carbon and Al coatings are preferably 2000 to 3000A thick.

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