Fused aluminum oxide abrasive grain containing reduced titanium oxide
A fused abrasive grain, useful for inclusion in coated abrasives and bonded abrasives, consists essentially of alumina; titanium oxide containing from about 0.42 to about 0.84% titaniun, by weight of the abrasive grain, present as a reduced titanium oxide having an average oxidation state lower than...
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| creator | WALKER, THOMAS B CICHY, PAUL SEIDER, ROBERT J |
| description | A fused abrasive grain, useful for inclusion in coated abrasives and bonded abrasives, consists essentially of alumina; titanium oxide containing from about 0.42 to about 0.84% titaniun, by weight of the abrasive grain, present as a reduced titanium oxide having an average oxidation state lower than in Ti2O3; from about 0.05 to about 0.3% by weight carbon; from about 0.02 to about 0.1% by weight Na2O; and from 0 to about 0.1% by weight total of calcium and silicon oxides. The grain before roasting has a gain on ignition of from about 0.4 to about 0.7% by weight, and is produced in an electric furnace by fusing high-purity titania, alumina containing Na2O as the only significant oxide impurity, and carbon, followed by crushing and roasting the fused grain. |
| format | Patent |
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The grain before roasting has a gain on ignition of from about 0.4 to about 0.7% by weight, and is produced in an electric furnace by fusing high-purity titania, alumina containing Na2O as the only significant oxide impurity, and carbon, followed by crushing and roasting the fused grain.</description><language>eng</language><subject>ADHESIVES ; CHEMISTRY ; DYES ; GRINDING ; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE ; METALLURGY ; MISCELLANEOUS APPLICATIONS OF MATERIALS ; MISCELLANEOUS COMPOSITIONS ; NATURAL RESINS ; PAINTS ; PERFORMING OPERATIONS ; POLISHES ; POLISHING ; TOOLS FOR GRINDING, BUFFING, OR SHARPENING ; TRANSPORTING</subject><creationdate>1979</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=19790612&DB=EPODOC&CC=US&NR=4157898A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19790612&DB=EPODOC&CC=US&NR=4157898A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>WALKER, THOMAS B</creatorcontrib><creatorcontrib>CICHY, PAUL</creatorcontrib><creatorcontrib>SEIDER, ROBERT J</creatorcontrib><title>Fused aluminum oxide abrasive grain containing reduced titanium oxide</title><description>A fused abrasive grain, useful for inclusion in coated abrasives and bonded abrasives, consists essentially of alumina; titanium oxide containing from about 0.42 to about 0.84% titaniun, by weight of the abrasive grain, present as a reduced titanium oxide having an average oxidation state lower than in Ti2O3; from about 0.05 to about 0.3% by weight carbon; from about 0.02 to about 0.1% by weight Na2O; and from 0 to about 0.1% by weight total of calcium and silicon oxides. The grain before roasting has a gain on ignition of from about 0.4 to about 0.7% by weight, and is produced in an electric furnace by fusing high-purity titania, alumina containing Na2O as the only significant oxide impurity, and carbon, followed by crushing and roasting the fused grain.</description><subject>ADHESIVES</subject><subject>CHEMISTRY</subject><subject>DYES</subject><subject>GRINDING</subject><subject>MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE</subject><subject>METALLURGY</subject><subject>MISCELLANEOUS APPLICATIONS OF MATERIALS</subject><subject>MISCELLANEOUS COMPOSITIONS</subject><subject>NATURAL RESINS</subject><subject>PAINTS</subject><subject>PERFORMING OPERATIONS</subject><subject>POLISHES</subject><subject>POLISHING</subject><subject>TOOLS FOR GRINDING, BUFFING, OR SHARPENING</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1979</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHB1Ky1OTVFIzCnNzcwrzVXIr8hMSVVITCpKLM4sS1VIL0rMzFNIzs8rAdKZeekKRakppclADSWZJYl5mTANPAysaYk5xam8UJqbQd7NNcTZQze1ID8-tbggMTk1L7UkPjTYxNDU3MLSwtGYsAoAW7YzCg</recordid><startdate>19790612</startdate><enddate>19790612</enddate><creator>WALKER, THOMAS B</creator><creator>CICHY, PAUL</creator><creator>SEIDER, ROBERT J</creator><scope>EVB</scope></search><sort><creationdate>19790612</creationdate><title>Fused aluminum oxide abrasive grain containing reduced titanium oxide</title><author>WALKER, THOMAS B ; CICHY, PAUL ; SEIDER, ROBERT J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US4157898A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1979</creationdate><topic>ADHESIVES</topic><topic>CHEMISTRY</topic><topic>DYES</topic><topic>GRINDING</topic><topic>MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE</topic><topic>METALLURGY</topic><topic>MISCELLANEOUS APPLICATIONS OF MATERIALS</topic><topic>MISCELLANEOUS COMPOSITIONS</topic><topic>NATURAL RESINS</topic><topic>PAINTS</topic><topic>PERFORMING OPERATIONS</topic><topic>POLISHES</topic><topic>POLISHING</topic><topic>TOOLS FOR GRINDING, BUFFING, OR SHARPENING</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>WALKER, THOMAS B</creatorcontrib><creatorcontrib>CICHY, PAUL</creatorcontrib><creatorcontrib>SEIDER, ROBERT J</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>WALKER, THOMAS B</au><au>CICHY, PAUL</au><au>SEIDER, ROBERT J</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Fused aluminum oxide abrasive grain containing reduced titanium oxide</title><date>1979-06-12</date><risdate>1979</risdate><abstract>A fused abrasive grain, useful for inclusion in coated abrasives and bonded abrasives, consists essentially of alumina; titanium oxide containing from about 0.42 to about 0.84% titaniun, by weight of the abrasive grain, present as a reduced titanium oxide having an average oxidation state lower than in Ti2O3; from about 0.05 to about 0.3% by weight carbon; from about 0.02 to about 0.1% by weight Na2O; and from 0 to about 0.1% by weight total of calcium and silicon oxides. The grain before roasting has a gain on ignition of from about 0.4 to about 0.7% by weight, and is produced in an electric furnace by fusing high-purity titania, alumina containing Na2O as the only significant oxide impurity, and carbon, followed by crushing and roasting the fused grain.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ADHESIVES CHEMISTRY DYES GRINDING MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PERFORMING OPERATIONS POLISHES POLISHING TOOLS FOR GRINDING, BUFFING, OR SHARPENING TRANSPORTING |
| title | Fused aluminum oxide abrasive grain containing reduced titanium oxide |
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