Low density alkali free optical glass - based on borosilicate contg. lime, titania, and lead oxide having high refractive index and low dispersion
Alkali face optical borosilicate glass with refractive gridex nd of 1.68-1.72, Abbe no Vd of 38-46 and density =3.2 g/cm3 comprises by wt. 20-30% SiO2, 10-25% B2O3, 15-45% CaO, 3-15% TiO2, 1-10% PbO, 0-3% MgO, 0-10% Al2O3, 0-10% ZrO2, 0-3% Z-O, 0-10% BaO, 0-5% La2O3. Glass contains no rare and expen...
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| creator | AURES,JULIA BYHAN,HANS-GUENTER |
| description | Alkali face optical borosilicate glass with refractive gridex nd of 1.68-1.72, Abbe no Vd of 38-46 and density =3.2 g/cm3 comprises by wt. 20-30% SiO2, 10-25% B2O3, 15-45% CaO, 3-15% TiO2, 1-10% PbO, 0-3% MgO, 0-10% Al2O3, 0-10% ZrO2, 0-3% Z-O, 0-10% BaO, 0-5% La2O3. Glass contains no rare and expensive raw materials and only a relatively small amt. of TiO2, hence it is inexpensive. It has a good resistance to crystallisation and weathering. The compsn. can be produced continuously. |
| format | Patent |
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Glass contains no rare and expensive raw materials and only a relatively small amt. of TiO2, hence it is inexpensive. It has a good resistance to crystallisation and weathering. The compsn. can be produced continuously.</description><edition>3</edition><language>eng ; ger</language><subject>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</subject><creationdate>1980</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19801030&DB=EPODOC&CC=DE&NR=3002935A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19801030&DB=EPODOC&CC=DE&NR=3002935A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>AURES,JULIA</creatorcontrib><creatorcontrib>BYHAN,HANS-GUENTER</creatorcontrib><title>Low density alkali free optical glass - based on borosilicate contg. lime, titania, and lead oxide having high refractive index and low dispersion</title><description>Alkali face optical borosilicate glass with refractive gridex nd of 1.68-1.72, Abbe no Vd of 38-46 and density =3.2 g/cm3 comprises by wt. 20-30% SiO2, 10-25% B2O3, 15-45% CaO, 3-15% TiO2, 1-10% PbO, 0-3% MgO, 0-10% Al2O3, 0-10% ZrO2, 0-3% Z-O, 0-10% BaO, 0-5% La2O3. Glass contains no rare and expensive raw materials and only a relatively small amt. of TiO2, hence it is inexpensive. It has a good resistance to crystallisation and weathering. 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Glass contains no rare and expensive raw materials and only a relatively small amt. of TiO2, hence it is inexpensive. It has a good resistance to crystallisation and weathering. The compsn. can be produced continuously.</abstract><edition>3</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 | Low density alkali free optical glass - based on borosilicate contg. lime, titania, and lead oxide having high refractive index and low dispersion |
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