Chemically Specified Frit Compositions Patents (Class 501/21)
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Patent number: 8084380Abstract: Transition metal doped Sn phosphate glass compositions and methods of making transition metal doped Sn phosphate glass compositions are described which can be used for example, in sealing applications.Type: GrantFiled: February 27, 2009Date of Patent: December 27, 2011Assignee: Corning IncorporatedInventor: Bruce Gardiner Aitken
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Publication number: 20110312482Abstract: A crystallizing glass solder for high-temperature applications, containing, in % by weight on an oxide basis: 45% to 60% of BaO, 25% to 40% of SiO2, 5% to 15% of B2O3, 0 to <2% of Al2O3, and at least one alkaline earth metal oxide from the group consisting of MgO, CaO and SrO, wherein CaO is 0% to 5% and the sum of the alkaline earth metal oxides MgO, CaO and SrO is 0% to 20%, preferably 2% to 15%. The glass solder is preferably free from TeO2 and PbO. Preferred embodiments of the glass solder contain from 3 to 15 wt. % of Y2O3 and have low porosity and high stability with respect to a moist fuel gas environment.Type: ApplicationFiled: March 30, 2010Publication date: December 22, 2011Inventors: Dieter Goedeke, Peter Brix, Olaf Claussen, Joern Besinger, Bastian Schoen
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Patent number: 8080490Abstract: The invention relates to an antimicrobial phosphate glass having the following composition in percent by weight on an oxide basis: P2O5>66-80 percent by weight; SO30-40 percent by weight; B203 0-1 percent by weight; Al2O3>6.2-10 percent by weight; SiO2 0-10 percent by weight; Na2O>9-20 percent by weight; CaO 0-25 percent by weight; MgO 0-15 percent by weight; SrO 0-15 percent by weight; BaO 0-15 percent by weight; ZnO>0-25 percent by weight; Ag2O 0-5 percent by weight; CuO 0-10 percent by weight; GeO2 0-10 percent by weight; TeO2 0-15 percent by weight; Cr2O3 0-10 percent by weight; J 0-10 percent by weight; F 0-3 percent by weight.Type: GrantFiled: February 20, 2004Date of Patent: December 20, 2011Assignee: Schott AGInventors: Jörg Hinrich Fechner, José Zimmer, Karine Seneschal
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Patent number: 8075961Abstract: A glass bonding material contains vanadium and phosphor as main glass components, and comprises in amounts converted as oxides of the elements in the components, 45 to 60% by weight of V2O5, 15 to 30% by weight of P2O5, 5 to 25% by weight of BaO, or contains a glass comprising at least vanadium, phosphor, barium and antimony, wherein the glass comprises in amounts converted as oxides, 15 to 35% by weight of BaO and Sb2O3 in total, and a weight ratio of BaO/Sb2O3 or Sb2O3/BaO is 0.3 or less.Type: GrantFiled: October 6, 2010Date of Patent: December 13, 2011Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Yuichi Sawai, Osamu Shiono, Takashi Namekawa, Takashi Naitou, Mitsuo Hayashibara, Yuichi Kijima, Shigemi Hirasawa, Shunichi Asakura, Hiroki Yamamoto, Akira Hatori
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Patent number: 8071183Abstract: A sealing glass of a low melting point phosphate glass composition contains 15 to 35% of BaO and Sb2O3 (in total) and the ratio by weight of BaO to Sb2O3 or Sb2O3 to BaO is 0.3 or less. Particularly the transition metal is vanadium and the glass contains V2O5 of 45 to 60 wt % as vanadium oxide and P2O5 of 15 to 30 wt % as phosphorus oxide. The bonding material is a mixture of a filler and a vanadate-phosphate glass that contains V2O5 of 45 to 60%, P2O5 of 20 to 30%, BaO of 5 to 15%, TeO2 of 0 to 10%, Sb2O3 of 5 to 10%, and WO3 of 0 to 5%. The particle size of the filler is in the range of 1 to 150 ?m and the ratio of filler is 80% by volume or less of the adhesive glass.Type: GrantFiled: June 1, 2007Date of Patent: December 6, 2011Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Yuichi Sawai, Osamu Shiono, Takashi Namekawa, Takashi Naitou, Mitsuo Hayashibara, Yuichi Kijima, Shigemi Hirasawa, Shunichi Asakura, Hiroki Yamamoto, Akira Hatori
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Publication number: 20110268976Abstract: Sealing materials for use with membrane supports, and in particular to sealing materials that can be used to form a glassy coating on the exterior surface of a membrane support to prevent gases from entering or exiting the support via the support's exterior walls.Type: ApplicationFiled: April 26, 2011Publication date: November 3, 2011Inventors: Lisa Ann Lamberson, Robert Michael Morena
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Patent number: 8034457Abstract: A seal structure is provided for an energy storage device. The seal structure includes a sealing glass joining an ion-conducting first ceramic to an electrically insulating second ceramic. The sealing glass has a composition that includes about 48 weight percent silica, about 20 weight percent to about 25 weight percent boria, about 20 weight percent to about 24 weight percent alumina, and about 8 weight percent to about 12 weight percent sodium oxide based on the total weight of the sealing glass composition. A method for making the seal structure is provided. An article comprising the seal structure is also provided.Type: GrantFiled: November 13, 2008Date of Patent: October 11, 2011Inventors: Jian Wu, Dong-Sil Park, Craig Stringer, Sundeep Kumar
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Patent number: 8022000Abstract: A bonding glass containing V2O5: 25 to 50 wt %, TeO2: 20 to 40 wt % and BaO: 5 to 30 wt %, and not containing lead.Type: GrantFiled: January 5, 2007Date of Patent: September 20, 2011Assignee: Hitachi Displays Ltd.Inventors: Yuichi Sawai, Osamu Shiono, Takashi Namekawa, Hiroyuki Akata, Takashi Naito, Keiichi Kanazawa, Yuuichi Kijima, Shigemi Hirasawa, Shunichi Asakura, Mitsuo Hayashibara
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Patent number: 8007930Abstract: This invention relates to lead free, cadmium free, bismuth free low melting high durability glass and enamel compositions. The compositions comprise silica, zinc, titanium, and boron oxide based glass frits. The resulting compositions can be used to decorate and protect automotive, beverage, architectural, pharmaceutical and other glass substrates.Type: GrantFiled: February 10, 2009Date of Patent: August 30, 2011Assignee: Ferro CorporationInventor: George E. Sakoske
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Patent number: 7989374Abstract: A solid oxide fuel cell device includes layers of solid electrolyte, cathode plates, anode plates, a frame and a non-contaminating, electrochemically stable sealing material. The sealing material may have a CTE of about 95×10?7/° C. to about 115×10?7/° C. The sealing material may include from about 65 wt % to about 100 wt % of glass frit and from about 0 wt % to about 35 wt % of a filler material. The glass frit may include from about 0 mol % to about 43 mol % of a metal oxide expressed as RO wherein R comprises magnesium, calcium, strontium, barium, zinc and/or combinations thereof. The glass frit may also include from about 0 mol % to about 5 mol % Al2O3; from about 0 mol % to about 7 mol % TiO2; and from about 41 mol % to about 60 mol % SiO2.Type: GrantFiled: May 15, 2008Date of Patent: August 2, 2011Assignee: Corning IncorporatedInventors: Melinda Ann Drake, Lisa Ann Lamberson, Robert Michael Morena
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Publication number: 20110183118Abstract: A glass article having improved edge strength. The glass article includes a glass substrate and an outer edge comprising a glass frit disposed on the edge of the substrate, wherein the glass frit is under compression. Methods of making the glass article and strengthening the edge of a glass article are also provided.Type: ApplicationFiled: December 28, 2010Publication date: July 28, 2011Inventors: Lisa Ann Lamberson, Robert Michael Morena
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Patent number: 7964523Abstract: A powder composition for forming a highly expansible crystallized glass substantially free of alkali metals is disclosed, which composition can provide, through its firing at a temperature of not more than 900° C., a seal between metal and ceramic. The powder composition is a powder composition for the formation of a sealing crystallized glass which is substantially free of alkali metals and consists of the powder of a glass containing, calculated as oxides, SiO2: 10-30% by mass, B2O3: 20-30% by mass, CaO: 10-40% by mass, MgO: 15-40% by mass, BaO+SrO+ZnO: 0-10% by mass, La2O3: 0-5% by mass, Al2O3: 0-5% by mass, and RO2: 0-3% by mass (wherein R represents Zr, Ti, or Sn), wherein the crystallized glass that is formed by firing the powder composition at 900±50° C. has a coefficient of thermal expansion of 90-120×10?7/° C. at 50-550 ° C.Type: GrantFiled: June 19, 2008Date of Patent: June 21, 2011Assignee: Nihon Yamamura Glass Co., Ltd.Inventors: Yoshitaka Mayumi, Hideyuki Kuribayashi
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Patent number: 7943060Abstract: The invention is directed to a process for making screen-printable getter composition comprising: (a) glass frit; and (b) pre-hydrated desiccant material; dispersed in (c) organic medium. The desiccant material is pre-hydrated to reach its saturation level of moisture absorption. The process of pre-hydration can be done by exposing the desiccant in a normal temperature/humidity environment of for example, 25° C. and 50-60% RH. For 24 to 48 hours or up to the time when weight gain (due to moisture absorption) stops increasing. An accelerated hydration process in a chamber with higher than normal humidity level (i.e. 50% Relative Humidity) is also applicable to shorten the time of exposure to fully hydrate the desiccant material.Type: GrantFiled: January 29, 2010Date of Patent: May 17, 2011Assignee: E.I. du Pont de Nemours and CompanyInventors: Carl B. Wang, Christopher John Roach, Fong-Pei Chang
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Patent number: 7943059Abstract: The invention is directed to a screen-printable getter composition comprising: (a) glass frit; dispersed in (b) organic medium. The invention is further directed to a screen-printable thick film getter composition comprising: (a) glass frit; and (b) desiccant material; dispersed in (c) organic medium. The present invention further relates to a getter composition utilizing low-softening temperature glasses comprising, based on weight %, 1-50% SiO2, 0-80% B2O3, 0-90% Bi2O3, 0-90% PbO, 0-90% P2O5, 0-60% Li2O, 0-30% Al2O3, 0-10% K2O, 0-10% Na2O, and 0-30% MO where M is selected from Ba, Sr, Ca, Zn, Cu, Mg and mixtures thereof. The glasses described herein may contain several other oxide constituents that can substitute glass network-forming elements or modify glass structure.Type: GrantFiled: December 29, 2009Date of Patent: May 17, 2011Assignee: E. I. Du Pont de Nemours and CompanyInventors: Yong Cho, Terri Cardellino, James Daniel Tremel
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Publication number: 20110073180Abstract: Disclosed are lead free glass frit powder for manufacturing a silicon solar cell, its producing method, a metal paste composition containing the same and a silicon solar cell. The lead free glass frit powder for manufacturing a silicon solar cell includes Bi2O3; B2O3; and any one metal oxide selected from the group consisting of ZnO, Al2O3 and BaCO3, or mixtures thereof. The glass frit powder is free of lead, and thus, it is environmental friendly. A front electrode of a solar cell formed using the glass frit powder has low resistance against contact with a substrate and high adhesion to the substrate.Type: ApplicationFiled: December 7, 2010Publication date: March 31, 2011Inventors: Jong-Wuk Park, Min-Seo Kim, Jong-Taik Lee
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Patent number: 7910506Abstract: The glass composite has a linear thermal expansion coefficient ?(20-300) of 1.8×10?6K?1 to 2.4×10?6K?1, a glass transformation temperature Tg of less than 650° C., and a composition, in weight percent based on oxide content, of: 5-9, B2O3; 1-3, Na2O; 15-22, Al2O3; 61-68, SiO2; 0.2-0.5, K2O; and 5.5-8.5, MgO. It can be made by sintering a mixture of 40 to 60 wt. % of a borosilicate glass powder and 60 to 40 wt. % of a cordierite powder. The powder mixture can be used to make a glass solder for joining parts, to make a sintered body with thermal shock resistance, or for glazing or soldering PZT ceramics.Type: GrantFiled: July 2, 2008Date of Patent: March 22, 2011Assignee: Schott AGInventors: Dieter Goedeke, Susanne Schmid
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Patent number: 7910507Abstract: There is provided a glass ceramic material for plasma display, in which glass fine grains (A) having a softening point of 570-640° C. are in 40-70 wt %, and glass fine grains (B) having a softening point of 480-540° C. are in 30-60 wt %, the glass ceramic material for plasma display being characterized in that the glass fine grains (A) comprise 2-12 wt % of SiO2, 50-58 wt % of B2O3, 10-20 wt % of Al2O3, 0-6 wt % of ZnO, 0-2.8 wt % of Li2O, and 10-22 wt % of at least one selected from MgO, CaO, SrO and BaO and that refractive index of the glass fine grains (A) is 1.53-1.56.Type: GrantFiled: December 20, 2007Date of Patent: March 22, 2011Assignee: Central Glass Company, LimitedInventors: Kazuhiro Nishikawa, Koji Tominaga
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Patent number: 7901769Abstract: A cementitious composite material wherein glass-coated steel rods are positioned in a cementitious matrix. The glass composition for coating the steel reinforcing rods includes between about 33-45 weight percent SiO2, 13.5-19.5 weight percent B2O3, 3.5-4.6 weight percent Al2O3, 4.0-13.5 weight percent K2O, 5.5-15.5 weight percent ZrO2, 8.6-15.9 weight percent Na2O, 4.6-5.1 weight percent CaO, 0.6-0.7 weight percent MnO2, 1.0-1.0 weight percent NiO, and 1.0-1.1 weight percent CoO. The glass composition is typically in compression on the rods at ambient temperatures, has a coefficient of thermal expansion of between about 12.5 and about 13.5, and has a softening temperature of between about 585 degrees Celsius and about 600 degrees Celsius.Type: GrantFiled: November 20, 2009Date of Patent: March 8, 2011Inventors: Richard K. Brow, Signo T. Reis, Mike Konigstein, Genda Chen
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Patent number: 7892997Abstract: This invention relates to boron-containing compositions for use in glaze compositions. There is provided a boron-containing composition for use in glaze production, which composition is obtainable by a process which comprises heating to a temperature sufficiently high that calcination occurs but insufficient for the formation of a homogeneous melt a mixture comprising components capable, under the conditions of heating, of forming the oxides B2O3, SiO2, Al2O3, Na2O and optionally CaO in proportions such that the relative percentages by weight of the said oxides, based on the total weight of the said oxides, are as follows: 10 to 18% B2O3, 40 to 65% SiO2, 17 to 32% Al2O3, 4 to 9% Na2O, and 0 to 10% CaO. The boron-containing compositions according to the present invention may be used in glaze compositions, suitably frit-free or boron-free frit-containing glaze compositions.Type: GrantFiled: June 21, 2007Date of Patent: February 22, 2011Assignee: U.S. Borax Inc.Inventors: Simon Gregson Cook, Miguel Joaquin Galindo Cercos
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Patent number: 7871949Abstract: A light emitting device includes: a first substrate; a second substrate; a light emitting unit interposed between the first substrate and the second substrate; and a sealing material bonding the first substrate to the second substrate and sealing the light emitting unit. The sealing material comprises V+4. In addition, a glass frit, a composition for forming a sealing material, and a method of manufacturing a light emitting device using the composition for forming a sealing material are provided to obtain the light emitting device. The sealing material of the light emitting device can be easily formed by coating and irradiation of electro-magnetic waves, so that manufacturing costs are low and deterioration of the light emitting unit occurring when sealing material is formed can be substantially prevented. The sealing material has good sealing properties and thus a light emitting device including the sealing material has a long lifetime.Type: GrantFiled: April 30, 2007Date of Patent: January 18, 2011Assignee: Samsung Mobile Display Co., Ltd.Inventors: Seung-Han Lee, Jong-Seo Choi, Jin-Hwan Jeon, Sang-Wook Sin
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Publication number: 20100291237Abstract: The present invention relates to boron-containing compositions. The invention relates to comminuted, heteroge-neousboron-containing compositions which are obtainable by a process which comprises heating to a temperature sufficiently high that calcination occurs but insufficient for the formation of a homogeneous melt a mixture comprising components capable, under the conditions of heating, of forming the oxides B2O3 and SiO2 and optionally Al2O3, Na2O and/or CaO in proportions such that the relative percentages by weight of the said oxides, based on the total weight of said oxides, are as follows: 5 to 35% B2O3; 10 to 65% SiO2; 0 to 35% Al2O3; and up to 20% Na2O and/or up to 50% CaO; with the proviso that the said B2O3 content is not 10 to 18%, when the other contents are as follows: 40 to 65% SiO2, 17 to 32% Al2O3 4 to 9% Na2O, and 0 to 10% CaO, and then comminuting the resulting composition.Type: ApplicationFiled: December 22, 2008Publication date: November 18, 2010Inventor: Simon Gregson Cook
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Patent number: 7833439Abstract: A silver conductive coating possessing infrared absorbing properties is disclosed. The coating is made from a blend of one or more micron size silver powders and/or flakes together with carbon black, inorganic pigment, glass frit, and powdered selenium or bismuth metal. The foregoing dry ingredients are pasted with an organic vehicle, applied to a substrate, and fired at a temperature of up to 1400° F. The coating absorbs infrared radiation beyond the decomposition of carbon black, thus allowing higher firing temperatures and hence shorter firing times.Type: GrantFiled: July 24, 2007Date of Patent: November 16, 2010Assignee: Ferro CorporationInventors: Terry J. Brown, David M. Stotka, William G. Picard, George E. Sakoske
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Publication number: 20100275654Abstract: Certain example embodiments of this invention relate to vacuum insulating glass (VIG) units including infrared meltable glass frits, and/or methods of making the same. More particularly, certain example embodiments relate to increasing the amount of ferrous oxide in glass frits (e.g., lead-free glass frits) used to form edge seals such that the glass frits absorb an increased amount of IR energy. The techniques of certain example embodiments make it possible to expose some or all of the VIG intermediate assembly to infrared source(s), since the glass frit will heat up faster than the substrates thereby reducing the likelihood of the first and/or second substrate melting and losing heat treatment strength. In certain example embodiments, the frit's glass redox (FeO/Fe2O3) preferably is at least about 0.02 higher than either (or the higher) of the substrates' glass redox (FeO/Fe2O3), more preferably at least about 0.04 higher, and most preferably at least about 0.06 higher.Type: ApplicationFiled: May 1, 2009Publication date: November 4, 2010Applicant: Guardian Industries Corp.Inventor: Yei-Ping (Mimi) H. Wang
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Patent number: 7811377Abstract: A substantially white powder for use as a filler and/or extender derived from by-products of manufacturing vitreous low alkali, low iron glass fibers, and a method for producing the powder. The filler has very low alkalinity and by virtue of its being essentially free of crystalline silica is non-hazardous to health and therefore safe for consumer-based and industrial-based uses.Type: GrantFiled: August 26, 2009Date of Patent: October 12, 2010Assignee: Albacem LLCInventors: Raymond T. Hemmings, Robert D. Nelson, Philip L. Graves, Bruce J. Cornelius
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Publication number: 20100244205Abstract: Glass frits, conductive inks and articles having conductive inks applied thereto are described. According to one or more embodiments, glass frits with no intentionally added lead comprise TeO2 and one or more of Bi2O3, SiO2 and combinations thereof. One embodiment of the glass frit includes B2O3, and can further include ZnO, Al2O3 and/or combinations thereof. One embodiment provides for conductive inks which include a glass frit with no intentionally added lead and comprising TeO2 and one or more of Bi2O3, SiO2 and combinations thereof. Another embodiment includes articles with substrates such as semiconductors or glass sheets, having conductive inks disposed thereto, wherein the conductive ink includes glass frits having no intentionally added lead.Type: ApplicationFiled: April 13, 2010Publication date: September 30, 2010Applicant: BASF SEInventor: Robert Prunchak
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Patent number: 7795163Abstract: The black-colored glass ceramic panel has a cooking surface provided with a smooth black decoration by burning in a decorative paint, which contains a colorless zinc-containing glass flux and up to 10 wt. % of a partially coated pigment. The partially coated pigment consists of 20 to 40 wt. % of a black pigment with a grain size of at most 5? and a grain size distribution characterized by a D50<2? and 60 to 80% by weight of a zinc-free boro-alumino-silicate glass coating the black pigment. The glass flux consists, in wt. %, of Li2O, 0-5; Na2O, 0-5; K2O, <2; ?Li2O+Na2O+K2O, 1-10; MgO, 0-3; CaO, 0-4; SrO, 0-4; BaO, 0-4; ZnO, >0-4; B2O3, 15-27; Al2O3, 10-20; SiO2, 43-58; TiO2, 0-3; ZrO2, Sb2O3, 0-2; F, 0-3.Type: GrantFiled: August 18, 2004Date of Patent: September 14, 2010Assignee: Schott AGInventors: Dietmar Wennemann, Harald Striegler
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Patent number: 7754345Abstract: A far infrared emitting nano glazed comprised of a mixture of 35˜65% solvent, 1˜35% solubilizing agent, 0˜25% refractory agent but not including 0%, 0.1˜5% adhesive agent, 0.5˜30% far infrared powder, and 0.5˜10% nano material, added with water to be ground into a solution with of 350±20 g/200 cc concentration and 200˜325 mesh fineness; then applied to surface of ceramic body or biscuit and then sintered at 1120° C.˜1350° C. into a finished ceramic product provided with far infrared function and nano characteristics to maintain clean, bright and attractive surface, antibiotic and activate the substance contained therein.Type: GrantFiled: October 23, 2007Date of Patent: July 13, 2010Inventor: Jih-Hsin Tsai
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Composition for dielectric layer of plasma display panel and plasma display panel including the same
Patent number: 7745359Abstract: A composition for a dielectric layer of a plasma display panel and a plasma display panel including the same are disclosed. The composition includes a glass frit, a binder, a dispersant, a plasticizer, and a solvent. The binder includes about 50 to 85 parts by weight of a first monomer, about 10 to 30 parts by weight of a second monomer, and about 1 to 20 parts by weight of a third monomer based on 100 parts by weight of the binder.Type: GrantFiled: November 26, 2008Date of Patent: June 29, 2010Assignee: LG Electronics Inc.Inventor: Munhyuk Lim -
Publication number: 20100120602Abstract: A sealing glass for an energy storage device is provided. The sealing glass includes silicon dioxide, boron oxide, aluminum oxide, sodium oxide and zirconium oxide. Methods for preparing the sealing glass and the energy storage device incorporating the sealing glass are also provided.Type: ApplicationFiled: November 13, 2008Publication date: May 13, 2010Inventors: Dong-Sil Park, Jian Wu, Mamatha Nagesh, Sundeep Kumar, Craig Stringer, Digamber Porob, Vinayak Hassan Vishwanath
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Patent number: 7699999Abstract: The invention is directed to a screen-printable getter composition comprising: (a) glass frit; dispersed in (b) organic medium. The invention is further directed to a screen-printable thick film getter composition comprising: (a) glass frit; and (b) desiccant material; dispersed in (c) organic medium. The present invention further relates to a getter composition utilizing low-softening temperature glasses comprising, based on weight %, 1-50% SiO2, 0-80% B2O3, 0-90% Bi2O3, 0-90% PbO, 0-90% P2O5, 0-60% Li2O, 0-30% Al2O3, 0-10% K2O, 0-10% Na2O, and 0-30% MO where M is selected from Ba, Sr, Ca, Zn, Cu, Mg and mixtures thereof. The glasses described herein may contain several other oxide constituents that can substitute glass network-forming elements or modify glass structure.Type: GrantFiled: September 15, 2008Date of Patent: April 20, 2010Assignee: E.I. du Pont de Nemours and CompanyInventors: Yong Cho, Terri Cardellino, James Daniel Tremel
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Patent number: 7695831Abstract: A coating composition and a cooking device and/or cooking receptacle coated with the coating composition are described. The coating composition includes 10 to 30 wt. % of SiO2, 10 to 30 wt. % of P2O5, 10 to 30 wt. % of Al2O3, 1 to 20 wt. % of TiO2, 7 to 15 wt. % of Na2O, 7 to 15 wt. % of K2O, 5 to 10 wt. % of ZrO2, 2 to 5 wt. % of BaO, 2 to 5 wt. % of B2O3, 1 to 2 wt. % of MnO2, and an adhesion enhancer. The coating composition provides favorable thermal resistance, acid resistance and mechanical properties, such that a cooking device and/or receptacle coated with the coating composition may be easily cleaned at a relatively low temperature.Type: GrantFiled: September 8, 2008Date of Patent: April 13, 2010Assignee: Samsung Electronics Co., LtdInventors: Jong Chull Shon, Hyang Ki Kim, Ki Suk Jeon, Tae Woo Kim, Jae Man Joo, Seok Weon Hong, Jong Hak Hyun, Jae Jong Oh
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Patent number: 7691762Abstract: The invention relates to a glass composition and a glass frit adequate for low temperature sintering agent at 1,100° C. or less, and a dielectric composition and a multilayer ceramic capacitor using the same. The glass composition comprises aLi2O-bK2O-cCaO-dBaO-eB2O3-fSiO2, in which a, b, c, d, e and f satisfy following relationships: a+b+c+d+e+f=100, 2?a?10, 2?b?10, 0?c?25, 0?d?25, 5?e?20, and 50?f?80.Type: GrantFiled: June 29, 2009Date of Patent: April 6, 2010Assignee: Samsung Electro-Mechanics Co.,Inventors: Sung Bum Sohn, Kang Heon Hur, Eun Sang Na, Tae Ho Song, Han Seong Jung, Chan Kong Kim
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Patent number: 7691288Abstract: The invention is directed to a process for making screen-printable getter composition comprising: (a) glass frit; and (b) pre-hydrated desiccant material; dispersed in (c) organic medium. The present invention further relates to a getter composition utilizing low-softening temperature glasses comprising, based on weight %, 1-50% SiO2, 0-80% B2O3, 0-90% Bi2O3, 0-90% PbO, 0-90% P2O5, 0-60% Li2O, 0-30% Al2O3, 0-10% K2O, 0-10% Na2O, and 0-30% MO where M is selected from Ba, Sr, Ca, Zn, Cu, Mg and mixtures thereof. The glasses described herein may contain several other oxide constituents that can substitute glass network-forming elements or modify glass structure. The desiccant material is pre-hydrated to reach its saturation level of moisture absorption. The process of pre-hydration can be done by exposing the desiccant in a normal temperature/humidity environment of for example, 25° C. and 50-60% RH. For 24 to 48 hours or up to the time when weight gain (due to moisture absorption) stops increasing.Type: GrantFiled: June 23, 2009Date of Patent: April 6, 2010Assignee: E.I. du Pont de Nemours and CompanyInventors: Carl B. Wang, Christopher John Roach, Fong-Pei Chang
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Patent number: 7674735Abstract: The invention is directed to highly crystalline, frit-sintered glass-ceramic materials and seals made using them that are suitable for solid oxide fuel cell applications. The seals have a coefficient of thermal expansion in the range of 70-130×10?7° C., preferably 85-115×10?7° C. The glass-ceramic materials have a crystalline component and a glass component, the crystalline component being >50% of the glass-ceramic and the glass component being <50%. In one preferred embodiment the crystalline component is >75%. Regarding the crystalline component only, >50% of the crystals in the crystalline component of the glass-ceramic has a structure selected from the structural groups represented by walstromite, cyclowollastonite, ?-(Ca,Sr)SiO3, kalsilite, kaliophilite and wollastonite (the primary crystalline phase) and the remaining <50% of the crystalline component is at least one secondary crystalline phase.Type: GrantFiled: November 18, 2008Date of Patent: March 9, 2010Assignee: Corning IncorporatedInventors: Michael Edward Badding, Sasha Marjanovic, Linda Ruth Pinckney, Dell Joseph St Julien
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Publication number: 20100050693Abstract: lead-free crystal ice that can be melt-adhered to a plate glass, has an average particle diameter (ø) of 0.2 mm to 1.0 mm, can be melted at a firing temperature (i.e. an internal temperature of a heating furnace) of 650 to 710° C., contains no heavy metals, and consists of optimal components present in optimal amounts. The lead-free crystal ice has the highest melting point within the range of 650 to 710° C. In addition, the surface of the lead-free crystal ice is not deformed or discolored in the atmosphere after the crystal ice is melt-adhered to the surface of a plate glass.Type: ApplicationFiled: November 24, 2006Publication date: March 4, 2010Inventor: Jae Seok Jeon
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Publication number: 20100004110Abstract: The invention relates to a corrosion resistant reactor tube, method for providing a passivating or corrosion resistant coating to the inside of the reactor tube, and a method of making high bismuth glass powders using the corrosion resistant reactor tube.Type: ApplicationFiled: July 2, 2008Publication date: January 7, 2010Applicant: E.I.du Pont de Nemours and CompanyInventors: Michael F. Barker, John James Barnes, Rob Cockerill, Howard David Glicksman, Warren Harrell, James J. Krajewski, Michele L. Ostraat, Jay Scott Schickling, Barry Edward Taylor
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Patent number: 7641730Abstract: The present invention provides a glass flake having sufficiently high visible-light absorptivity. The glass flake of the present invention includes a glass composition that contains a transition metal oxide such as an iron oxide and that allows the glass flake to have a visible-light transmittance of 85% or lower measured with an A light source when the glass flake has a thickness of 15 ?m. In this glass composition, it is preferable that the content of Fe2O3 (T?Fe2O3) in terms of the total iron satisfies the following formula, expressed in mass %: 10<T?Fe2O3?50.Type: GrantFiled: February 27, 2004Date of Patent: January 5, 2010Assignee: Nippon Sheet Glass Company, LimitedInventors: Kosuke Fujiwara, Makoto Umino, Akihiro Koyama, Haruki Niida
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Patent number: 7615506Abstract: Tungsten-doped tin-fluorophosphate glasses are described herein which exhibit excellent humidity resistance, thermal resistance, and have a low glass transition temperature which makes them suitable for low temperature sealing applications, such as for encapsulating electronic components. In one embodiment, these glasses comprise 55-75% Sn, 4-14% P, 6-24% O, 4-22% F, and 0.15-15% W on a weight percent elemental basis.Type: GrantFiled: October 6, 2006Date of Patent: November 10, 2009Assignee: Corning IncorporatedInventors: Bruce Gardiner Aitken, Shari Elizabeth Koval, Mark Alejandro Quesada
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Patent number: 7611774Abstract: The glass ceramic or glass element that can be subjected to high thermal loads is decorated with a metallic colorant. The metallic colorant consists of a melted silicate and at least one effect pigment, which is included in a specified proportion in a melt of the silicate glass to form the metallic colorant. The at least one effect pigment is in the form of platelets of synthetic aluminum oxide (Al2O3) coated with at least one metal oxide. Preferably the at least one effect pigment is a XIRALLIC® high chroma sparkle pigment supplied commercially by Merck and the metallic colorant has a pigment content of from 1 to 30 wt. %.Type: GrantFiled: May 3, 2005Date of Patent: November 3, 2009Assignee: Schott AGInventors: Monica Cotlear De Witzmann, Dietmar Wennemann, Angelina Milanovska, Ella Ruhl, Eva Lauterbach, Ioannis Kosmas
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Patent number: 7605098Abstract: A substantially white powder for use as a filler and/or extender derived from by-products of manufacturing vitreous low alkali, low iron glass fibers, and a method for producing the powder. The filler has very low alkalinity and by virtue of its being essentially free of crystalline silica is non-hazardous to health and therefore safe for consumer-based and industrial-based uses.Type: GrantFiled: June 28, 2006Date of Patent: October 20, 2009Assignee: Albacem, LLCInventors: Raymond T. Hemmings, Robert D. Nelson, Philip L. Graves, Bruce J. Cornelius
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Patent number: 7569505Abstract: The invention relates to a method for the production of glass-coated electric components, wherein the components are, inter alia, passivated by the application of the glass. The lead-free glass used is not affected through purification and processing steps and the electric component is protected from mechanical damaging and other detrimental influences, such as impurities. Further, the method remarkably helps to stabilize the electrical properties of the components. Inter alia, a sufficient acid resistance is achieved and it results in an improvement of the expansion adjustment of the glass.Type: GrantFiled: June 27, 2006Date of Patent: August 4, 2009Assignee: Schott AGInventors: Joern Besinger, Oliver Fritz, Peter Brix
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Publication number: 20090189126Abstract: Glass frits, conductive inks and articles having conductive inks applied thereto are described. According to one or more embodiments, glass frits with no intentionally added lead comprise TeO2 and one or more of Bi2O3, SiO2 and combinations thereof. One embodiment of the glass frit includes B2O3, and can further include ZnO, Al2O3 and/or combinations thereof. One embodiment provides for conductive inks which include a glass frit with no intentionally added lead and comprising TeO2 and one or more of Bi2O3, SiO2 and combinations thereof. Another embodiment includes articles with substrates such as semiconductors or glass sheets, having conductive inks disposed thereto, wherein the conductive ink includes glass frits having no intentionally added lead.Type: ApplicationFiled: January 30, 2008Publication date: July 30, 2009Inventor: Robert Prunchak
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Patent number: 7559818Abstract: A front substrate for a plasma display panel (PDP) and an associated fabrication method are provided. An upper dielectric layer of the front substrate includes a colorant, which causes the dielectric layer to also act as a color filter. The resulting front substrate enhances at least one of color temperature, color purity, and/or contrast without increasing complexity or cost.Type: GrantFiled: January 18, 2007Date of Patent: July 14, 2009Assignee: LG Electronics Inc.Inventor: Sung-Wook Lee
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Patent number: 7560401Abstract: Frits, obscuration enamel compositions including frits and automotive windshields having obscuration enamel compositions applied thereto are described. According to one or more embodiments, the obscuration enamel composition comprises a paste component and a frit component having Bi2O3, SiO2 and B2O3 and being substantially free of Na2O. In other embodiments, a reducing agent is included in the frit component. Obscuration enamels of some embodiments have a total solids content of at least 80% by weight.Type: GrantFiled: April 20, 2007Date of Patent: July 14, 2009Assignee: Johnson Matthey Public Limited CompanyInventors: Robert Prunchak, Matthew Sgriccia
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Publication number: 20090139590Abstract: A zirconium- and alumina-containing silicate glass suitable for use as a frit with refractory materials such as alumina is disclosed, the silicate glass comprising a glass composition in mole percent (mol %) of: 2<B2O3<7 mol % 75<SiO2<80 mol % 3<Al2O3<5 mol % 2<ZrO2<5 mol% 9<Na2O+K2O<15 mol % 0<alkali earth+lanthanide<15 mol % and wherein the total mole percent of SiO2, AlO3 and ZrO2 together is greater than 82 but less than 86, and wherein the total mole percent of B2O3, Na2O, K2O, alkali earths and lanthanides together is greater than 13 and less than 18. Frits (200,600), composites (600) and microfluidic devices (12) comprising the glass are also disclosed.Type: ApplicationFiled: November 24, 2008Publication date: June 4, 2009Inventor: Paulo Gaspar Jorge Marques
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Patent number: 7528084Abstract: The present invention provides glass compositions and glass coatings that are lead-free and cadmium-free for use on glass substrates, particularly in automotive applications. The compositions of the present invention provide for chemically durable, blacker colors that are completely suitable for use in automotive glass windows. The compositions include tantalum oxide as a required component.Type: GrantFiled: January 30, 2006Date of Patent: May 5, 2009Assignee: The Shepherd Color CompanyInventor: Hasan B. Emlemdi
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Patent number: 7507682Abstract: In manufacturing a ceramic multi-layer wiring substrate which is formed by stacking a plurality of ceramic layers and which includes an internal wiring, a ceramic paste is printed using a screen printing process on a part of a ceramic green sheet to be a ceramic layer having the internal wiring formed thereon which part does not include the internal wiring, to form between the ceramic layers a ceramic filling layer including a same ceramic component as that in the ceramic layers which ceramic filling layer is not formed on the internal wiring. The ceramic paste includes a ceramic component, an acrylic resin, and a cellulose resin, and loss factor tan ? of the paste represented by (loss modulus)/(storage modulus) in a dry condition after printing is equal to or greater than loss factor tan ? of a conductor paste layer to be the internal wiring in a dry condition.Type: GrantFiled: February 23, 2005Date of Patent: March 24, 2009Assignee: Kyocera CorporationInventors: Hiroyuki Takase, Shinichi Suzuki, Yutaka Iki
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Patent number: 7470640Abstract: The invention is directed to highly crystalline, frit-sintered glass-ceramic materials and seals made using them that are suitable for solid oxide fuel cell applications. The seals have a coefficient of thermal expansion in the range of 70-130×10?7° C., preferably 85-115×10?7° C. The glass-ceramic materials have a crystalline component and a glass component, the crystalline component being>50% of the glass-ceramic and the glass component being<50%. In one preferred embodiment the crystalline component is >75%. Regarding the crystalline component only,>50% of the crystals in the crystalline component of the glass-ceramic has a structure selected from the structural groups represented by walstromite, cyclowollastonite, ?-(Ca,Sr)SiO3, kalsilite, kaliophilite and wollastonite (the primary crystalline phase) and the remaining <50% of the crystalline component is at least one secondary crystalline phase.Type: GrantFiled: October 11, 2006Date of Patent: December 30, 2008Assignee: Corning IncorporatedInventors: Michael Edward Badding, Sasha Marjanovic, Linda Ruth Pinckney, Dell Joseph St Julien
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Patent number: 7438829Abstract: The invention is directed to a screen-printable getter composition comprising: (a) glass frit; dispersed in (b) organic medium. The invention is further directed to a screen-printable thick film getter composition comprising: (a) glass frit; and (b) desiccant material; dispersed in (c) organic medium. The present invention further relates to a getter composition utilizing low-softening temperature glasses comprising, based on weight %, 1-50% SiO2, 0-80% B2O3, 0-90% Bi2O3, 0-90% PbO, 0-90% P2O5, 0-60% Li2O, 0-30% Al2O3, 0-10% K2O, 0-10% Na2O, and 0-30% MO where M is selected from Ba, Sr, Ca, Zn, Cu, Mg and mixtures thereof. The glasses described herein may contain several other oxide constituents that can substitute glass network-forming elements or modify glass structure.Type: GrantFiled: November 13, 2003Date of Patent: October 21, 2008Assignee: E.I. du Pont de Nemours and CompanyInventors: Yong Cho, Terri Cardellino, James Daniel Tremel
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Patent number: 7425518Abstract: Provided with a glass composition including a network-former oxide composed of any one of or both of B2O3 and V2O5 of 20-80% by weight, ZnO of 0-60% by weight and BaO of 0-80% by weight, wherein at least one of ZnO and BaO is included as an essential ingredient. The present invention is a glass material for use in sealing, which is of lead-free series, can be used for sealing at a low processing temperature and within a wide temperature range, has a low thermal expansion coefficient, superior adhesion, superior sealing processability, superior adherence, superior chemical stability, superior strength and the like and comprises sufficient practical performance to substitute for lead glass.Type: GrantFiled: June 21, 2005Date of Patent: September 16, 2008Assignee: Yamato Electronic Co., Ltd.Inventors: Masahiro Yoshida, Yasuo Hatate, Tsugumitsu Sarata, Yoshimitsu Uemura, Tomoyuki Honda, Hiroyuki Fukunaga, Masahiro Iwashita