Ultraviolett absorbierende Gläser
A non-photochromic R2O-B2O3-SiO2 glass containing a cuprous or cuprous-cadmium halide crystal phase, having a sharp spectral cutoff at about 400 nm, the glass composition consisting essentially of, in cation percent, 35-73% SiO2, 15-45% B2O3, 0-12% Al2O3, the Al2O3 being less than 10% when the SiO2...
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| creator | MORGAN, DAVID WILLIAM ARAUJO, ROGER JEROME |
| description | A non-photochromic R2O-B2O3-SiO2 glass containing a cuprous or cuprous-cadmium halide crystal phase, having a sharp spectral cutoff at about 400 nm, the glass composition consisting essentially of, in cation percent, 35-73% SiO2, 15-45% B2O3, 0-12% Al2O3, the Al2O3 being less than 10% when the SiO2 is over 55%, 0-12% Li2O, 0-20% Na2O, 0-12% K2O, the Li2O+Na2O+K2O being 4.75-20%, 0-5% CaO+BaO+SrO, 0.125-1.0% Cu2O, 0-1% CdO, 0-5% ZrO2, 0-0.75% SnO2, 0-1% As2O3 and/or Sb2O3, the glass containing 0-1.75% Cl, 0-1.0% Br, 0.25-2.0% Cl+Br and 0-2% F by weight, and having an R-value, calculated in mole percent of 0.15-0.45, the R-value not exceeding 0.30, except as the glass composition meets at least one condition selected from the group: up to 12 cation % Li2O, less than 10 cation % Al2O3, at least 0.3 cation % Cu2O and 0.50-2.0% Cl+Br. Also, a method of making the non-photochromic glass having a sharp spectral cutoff. |
| format | Patent |
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Also, a method of making the non-photochromic glass having a sharp spectral cutoff.</description><subject>CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS</subject><subject>CHEMISTRY</subject><subject>GLASS</subject><subject>JOINING GLASS TO GLASS OR OTHER MATERIALS</subject><subject>METALLURGY</subject><subject>MINERAL OR SLAG WOOL</subject><subject>SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS</subject><subject>SURFACE TREATMENT OF GLASS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2005</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFAKzSkpSizLzM9JLSlRSEwqzi9KykwtSs1LSVVwzzm8pDi1iIeBNS0xpziVF0pzMyi5uYY4e-imFuTHpxYXJCan5qWWxLu4mlkaGxubWhqHhBgZE6UIAHHGJ-c</recordid><startdate>20050915</startdate><enddate>20050915</enddate><creator>MORGAN, DAVID WILLIAM</creator><creator>ARAUJO, ROGER JEROME</creator><scope>EVB</scope></search><sort><creationdate>20050915</creationdate><title>Ultraviolett absorbierende Gläser</title><author>MORGAN, DAVID WILLIAM ; ARAUJO, ROGER JEROME</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_DE69333593TT23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>ger</language><creationdate>2005</creationdate><topic>CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS</topic><topic>CHEMISTRY</topic><topic>GLASS</topic><topic>JOINING GLASS TO GLASS OR OTHER MATERIALS</topic><topic>METALLURGY</topic><topic>MINERAL OR SLAG WOOL</topic><topic>SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS</topic><topic>SURFACE TREATMENT OF GLASS</topic><toplevel>online_resources</toplevel><creatorcontrib>MORGAN, DAVID WILLIAM</creatorcontrib><creatorcontrib>ARAUJO, ROGER JEROME</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MORGAN, DAVID WILLIAM</au><au>ARAUJO, ROGER JEROME</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Ultraviolett absorbierende Gläser</title><date>2005-09-15</date><risdate>2005</risdate><abstract>A non-photochromic R2O-B2O3-SiO2 glass containing a cuprous or cuprous-cadmium halide crystal phase, having a sharp spectral cutoff at about 400 nm, the glass composition consisting essentially of, in cation percent, 35-73% SiO2, 15-45% B2O3, 0-12% Al2O3, the Al2O3 being less than 10% when the SiO2 is over 55%, 0-12% Li2O, 0-20% Na2O, 0-12% K2O, the Li2O+Na2O+K2O being 4.75-20%, 0-5% CaO+BaO+SrO, 0.125-1.0% Cu2O, 0-1% CdO, 0-5% ZrO2, 0-0.75% SnO2, 0-1% As2O3 and/or Sb2O3, the glass containing 0-1.75% Cl, 0-1.0% Br, 0.25-2.0% Cl+Br and 0-2% F by weight, and having an R-value, calculated in mole percent of 0.15-0.45, the R-value not exceeding 0.30, except as the glass composition meets at least one condition selected from the group: up to 12 cation % Li2O, less than 10 cation % Al2O3, at least 0.3 cation % Cu2O and 0.50-2.0% Cl+Br. Also, a method of making the non-photochromic glass having a sharp spectral cutoff.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS METALLURGY MINERAL OR SLAG WOOL SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS |
| title | Ultraviolett absorbierende Gläser |
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