Matches 101 - 150 out of 176 < 1 2 3 4 >
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5047371 Glass/ceramic sealing system  
The present invention relates to a glass/ceramic sealing system. A sealing glass having a coefficient of thermal expansion in excess of 160×10 -7 in/in/° C. is provided. The glass is useful for...
5002903 Porcelain enameled metal substrates  
The present invention contemplates a novel enamel composition, a novel electrodeposition bath, a novel metal substrate for enameling, and the novel PEMS produced from these materials and...
5001087 Insulating powder and compositions for resistant coating  
An insulating powder for the formation of a resistant coating is disclosed which comprises a glass powder consisting of 60 to 70% by weight of ZnO, 19 to 25% by weight of B 2 O 3 , and 10 to 16%...
4997795 Dielectric compositions of devitrified glass containing small amounts of lead oxide and iron oxide  
An improved dielectric formulation for the fabrication of multilayer, integrated circuits which comprises a devitrifying zinc-magnesium-barium-aluminum-zirconium-phosphosilicate glass frit, a...
4975391 Enamel frit composition for direct coating  
The present invention provides an enamel frit composition which comprises a component selected from the group consisting of SiO 2 , B 2 O 3 , Al 2 O 3 , CaO, MgO, Na 2 O, K 2 O, Li 2 O, BaO,...
4970178 Lead-free glass frit compositions  
Lead-free glass frit compositions for use in vitreous coatings consisting essentially of Na 2 O--ZnO--B 2 O 3 --SiO 2 in appropriate concentrations including molar amounts of at most 17.5 mole...
4959330 Crystallizable glass and thick film compositions thereof  
A dielectric glass composition consisting essentially on a molar basis of 15-27% ZNO, 8-16% BaO, 40-60% SiO 2 , 3-14% Al 2 O 3 , 0-5% PbO and 0.5-5% of a metal oxide selected from ZrO 2 , up to...
4908338 Dried emulsion ceramic process  
Dried emulsion of precursors for ceramic additives are added to paints containing fine particle ceramic materials for use in ceramic capacitors. The precursors are converted into the desired...
4882301 Decorative and protective borders for automobile side and rear lights  
There is provided a glass enamel system adaptable to be fired from about 1000° F. to about 1350° F., said glass enamel characterized, upon firing, by a formation therein of metal orthosilicate...
4877758 Lead-free frit  
A lead-free frit suitable for use on aluminum, consisting essentially of: TBL ______________________________________ 33-42 wt. % SiO 2 8-13 TiO 2 0.5-2.5 ...
4859637 Lead-free U.V. absorbing glass  
The present invention relates to an improved U.V. absorbing glass composition comprising from about 75 to about 98 parts by weight of a lead oxide free base glass having dissolved therein from...
4857486 Adhesive for oxide ceramics and method of bonding oxide ceramics using it  
Disclosed are an adhesive for oxide ceramics, which comprises as its effective ingredient a crystallized glass mainly comprising SiO 2 , Al 2 O 3 , Li 2 O, MgO and/or ZnO, and TiO 2 and/or ZrO 2...
4788163 Devitrifying glass frits  
A novel devitrifying frit is disclosed which has a coefficient of expansion essentially the same as that of silicon. The subject frits have a high softening temperature and excellent reheat...
4772574 Ceramic filled glass dielectrics  
An improved dielectric ink for the fabrication of multilayer, copper-based integrated circuits is disclosed. The subject inks comprise a suitable ceramic filler material, an organic vehicle and a...
4748137 Low temperature melting frits  
This invention is directed to the production of essentially lead-free glass compositions demonstrating softening points below 500° C. and coefficients of thermal expansion somewhat below 88×10 -7...
4725333 Metal-glass laminate and process for producing same  
This application is directed to a process of forming a laminate. The steps include providing a glass and a metal foil of either deoxidized copper alloy or oxygen-free copper alloy. The glass is...
4687540 Method of manufacturing glass capacitors and resulting product  
This invention relates to a laminated glass capacitor and method of making the capacitor. The capacitor is constructed of a plurality of internal electrodes stacked and having glass layers...
RE32299 Glass composition and articles  
This invention provides a novel glass composition having numerous uses. More particularly, the invention provides a single phase, radiopaque glass composition.
4624934 Ceramic composition for multilayer printed wiring board  
A ceramic composition for a multilayer printed wiring board, consisting essentially of from 35 to 95% by weight of glass powder and from 5 to 65% by weight of refractory filler powder, said...
4618590 Starting mixture for a dielectric composition  
The invention relates to the formulation of a starting mixture for an insulating composition, comprising a vitreous phase and several ceramic phases in the respective ratios by volume for the...
4590171 Low temperature lead and cadmium-free frits  
This invention relates to the production of frits especially suitable for use in contact with foods. The frits are essentially free from cadmium and lead and consist essentially, in weight percent...
4578619 Glass composition and gas-filled display panel incorporating the glass  
The disclosure is of a lead-free glass composition including SiO 2 , B 2 O 3 , ZnO, Al 2 O 3 , Na 2 O, K 2 O, CaO, and Li 2 O. The glass is used as a cement frit and as an insulating layer in...
4554258 Chemical resistant lead-free glass frit compositions  
Glass frit compositions for use in glazes or enamels have a fiber softening point of 535° C. or more and are free of cadmium, lead and arsenic and consist essentially of Bi 2 O 3 --B 2 O 3 ...
4547467 Dielectric composition and devices using it  
A composition for a dielectric ink used in a screening process including a lead-free glass frit binder, silica, and a vehicle. The dielectric composition is particularly suited for use in gas...
4542105 Glass composition for covering semiconductor element  
A glass composition for covering a semiconductor element. The glass composition has excellent resistance to chemicals and excellent electric characteristics. The glass composition includes 3 to 8%...
4493900 Low melting enamel frits  
A low melting enamel frit which comprises 31 to 39 wt % of SiO 2 , 13 to 21 wt % of B 2 O 3 , 14 to 21 wt % of Na 2 O, 1 to 5 wt % of K 2 O, 5 to 20 wt % of ZnO, 2 to 10 wt % of F 2 and 2 to 9...
4469798 Low melting, opaque enamel frit  
A low melting, opaque enamel frit is described, which comprises 30 to 36 wt. % of SiO 2 , 15 to 20 wt. % of B 2 O 3 , 7 to 9 wt. % of Na 2 O, 5 to 10 wt. % of ZrO 2 , 10 to 17 wt. % of TiO 2 , 7...
4417913 Lower temperature glass and hermetic seal means and method  
An improved lead-free glass or glass plus alumina ceramic sealing material composition for making compression glass sealed electrical leads in semiconductor device packages is described wherein the...
4376169 Low-melting, lead-free ceramic frits  
A lead-free low-melting frit is made by combining raw materials in amounts such that the product will have a specific oxide analysis, melting the raw materials at a temperature greater than 1000°...
4361654 Porcelain enamel frit for sheet iron ground coat  
A porcelain enamel frit for sheet iron ground coat is disclosed, which contains neither fluorine nor fluorine compound, but has excellent firing property, and can be worked into sheet iron enamel...
4359536 Frit glass composition  
A novel frit glass composition is disclosed which is particularly useful to apply color coatings to the soda-lime glass envelopes of incandescent lamps. Specifically, the present glass frit can be...
4355115 Borosilicate glass frit with MgO and BaO  
Borosilicate glass frit with MgO as a major component for forming partially devitrified porcelain compositions are provided which are comprised of a mixture, based on its oxide content, of barium...
4340645 Leadless glazes for whiteware  
The present invention is directed to ceramic frits for use in ceramic glazes and to the glazes themselves which when fired consist essentially of: TBL ______________________________________ ...
4323652 Starting mixture for a dielectric composition, screen printing paste having such a starting mixture, and product obtained  
Dielectric composition, screen printing paste having such a composition and products obtained. The invention describes a dielectric composition which may be used in particular as an insulating...
4316963 Leadless glaze composition made with alkaline earth molybdenate  
A leadless glaze composition having properties that make lead oxide containing glazes so widely used as ceramic glazes. The glazes according to this invention are prepared to analyze more than...
4315991 Very low expansion sealing frits  
This invention is drawn to thermally devitrifiable sealing glasses capable of forming sound seals with glasses, glass-ceramics, and ceramics having coefficients of thermal expansion (0°-300° C.)...
4299873 Multilayer circuit board  
A multilayer circuit board obtained by laminating and bonding a plurality of ceramic substrates, each substrate having holes therein and a conductive circuit pattern on at least one surface...
4285731 Lead-free and cadmium-free frits  
This invention is related to the production of glazes and enamels for decorating glass, glass-ceramic, and ceramic articles. The glass frits suitable therefor exhibit good glass stability,...
4276204 Composition of a conductive ceramic glaze and improved method of forming same  
A composition of matter utilized by particular method for forming an electrically conductive glaze upon the outer surface of a ceramic mold form wherein the combination includes approximately 33...
4224627 Seal glass for nozzle assemblies of an ink jet printer  
A seal glass for unitizing an array of glass nozzles of an ink jet printer. The seal glasses are corrosion resistant to alkaline and acidic inks, and have low softening points, medium high...
4196004 Corrosion resistant glasses that contain chemical additives for application over metal substrates  
Protective coatings for alloys, mild steel, and enameling iron that has high resistance to corrosive attack and superior thermomechanical properties over ordinary glass or enamel coatings is...
4184189 Capacitive pressure sensor and method of making it  
An inexpensive glass capacitive pressure sensor. Conductive capacitor electrodes are disposed on two flat glass plates, one serving as a diaphragm, the other as a substrate. The electrodes are...
4120729 Novel low temperature maturing dental glaze  
The instant invention relates to a novel dental glaze which matures at a temperature of from 1400° to 1600° F, that is, at least 200° lower than the vitrifying temperature of dental porcelain....
4084976 Lead-free glaze for alumina bodies  
A high-silica ceramic glaze, having a low coefficient of thermal expansion, suitable for application to alumina bodies, is disclosed. The glaze comprises, by weight percent, about 50 percent SiO 2...
3898091 Novel glazing composition and method  
Ceramic glaze formulations incorporating surfactants exhibit an increased resistance to "crawling" during firing and in the presence of surface defects which may be present on ceramic objects...
3871890 Composition and process for glazing ceramic ware  
Disclosed are compositions and methods for glazing low-expansion ceramic ware with an opaque, non-porous, acid-resistant, low-expansion, semi-crystalline glass-ceramic glaze which can be subjected...
3836373 METHOD OF PREPARING PORCELAIN ENAMEL FRIT FOR DRY PROCESS ENAMELING  
1. The method of making an improved titania opacified porcelain enameling frit for dry process application which comprises fritting a molten silicate glass composition containing from about 8 to 24...
3804666 GLAZED CERAMIC WARE  
Disclosed are compositions and methods for glazing low-expansion ceramic ware with an opaque, non-porous, acid-resistant, low-expansion, semi-crystalline glass-ceramic glaze which can be subjected...
3723835 GLASSES FOR ENCAPSULATING SEMICONDUCTOR DEVICES  
Alkali-free glasses for encapsulating semiconductor devices, such as zener diodes, wherein preformed (pressing and sintering) glass packages are formed are disclosed. To prevent degradation of the...
3706582 GLASS FRIT-CERAMIC POWDER COMPOSITION  
Disclosed are techniques for fabricating metal-ceramic articles wherein a hermetic seal is desired between the metal-ceramic jointure. The technique involves utilization of a powdered ceramic...
Matches 101 - 150 out of 176 < 1 2 3 4 >