FUMED SILICA
Pyrogenically produced silicon dioxide (I) exhibiting a Brunauer-Emmett and Teller surface (BET) value of 200 +- 15 m 2>/g, a grindometer value of less than 30 mu m and a median value of 65-86, according to photon correlation spectroscopy, is new. Independent claims are included for: (1) the prep...
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| creator | MEYER, JUERGEN SCHOLZ, MARIO ROCHNIA, MATTHIAS |
| description | Pyrogenically produced silicon dioxide (I) exhibiting a Brunauer-Emmett and Teller surface (BET) value of 200 +- 15 m 2>/g, a grindometer value of less than 30 mu m and a median value of 65-86, according to photon correlation spectroscopy, is new. Independent claims are included for: (1) the preparation of (I); and (2) a silicon rubber mass comprising 0.5-60 wt.% of the pyrogenically produced silicon dioxide and 40-99.5 wt.% of an organopolysiloxane compound of formula (Z-Si-R3-n-O-[SiR2O] x-SiR3-n-Z1). R : 1-50C alkyl, 1-50C alkoxy-, aryl-, oxime- or acetoxy residue (optionally substituted by O, S, F, Cl, Br, I or polystyrene-, polyvinylacetate-, polyacrylate-, polymethacrylate- or polyacrylnitrile residue with 40-10000 repeating units); Z : OH, Cl, Br or acetoxy-, amino-, aminoxy-, oxime-, alkoxy-amido-, alkenyloxy-, acryloxy- or phosphate residue, where the organic residue exhibits 0-20 carbon atom; Z1 : oxime-, alkoxy-, acetoxy-, amino- or amido residue; n : 1-3; and x : 100-15000. |
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Independent claims are included for: (1) the preparation of (I); and (2) a silicon rubber mass comprising 0.5-60 wt.% of the pyrogenically produced silicon dioxide and 40-99.5 wt.% of an organopolysiloxane compound of formula (Z-Si-R3-n-O-[SiR2O] x-SiR3-n-Z1). R : 1-50C alkyl, 1-50C alkoxy-, aryl-, oxime- or acetoxy residue (optionally substituted by O, S, F, Cl, Br, I or polystyrene-, polyvinylacetate-, polyacrylate-, polymethacrylate- or polyacrylnitrile residue with 40-10000 repeating units); Z : OH, Cl, Br or acetoxy-, amino-, aminoxy-, oxime-, alkoxy-amido-, alkenyloxy-, acryloxy- or phosphate residue, where the organic residue exhibits 0-20 carbon atom; Z1 : oxime-, alkoxy-, acetoxy-, amino- or amido residue; n : 1-3; and x : 100-15000.</description><language>eng ; fre ; ger</language><subject>CHEMISTRY ; COMPOSITIONS BASED THEREON ; COMPOUNDS THEREOF ; INORGANIC CHEMISTRY ; METALLURGY ; NON-METALLIC ELEMENTS ; ORGANIC MACROMOLECULAR COMPOUNDS ; THEIR PREPARATION OR CHEMICAL WORKING-UP ; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS</subject><creationdate>2008</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=20080910&DB=EPODOC&CC=EP&NR=1966085A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76292</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20080910&DB=EPODOC&CC=EP&NR=1966085A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MEYER, JUERGEN</creatorcontrib><creatorcontrib>SCHOLZ, MARIO</creatorcontrib><creatorcontrib>ROCHNIA, MATTHIAS</creatorcontrib><title>FUMED SILICA</title><description>Pyrogenically produced silicon dioxide (I) exhibiting a Brunauer-Emmett and Teller surface (BET) value of 200 +- 15 m 2>/g, a grindometer value of less than 30 mu m and a median value of 65-86, according to photon correlation spectroscopy, is new. Independent claims are included for: (1) the preparation of (I); and (2) a silicon rubber mass comprising 0.5-60 wt.% of the pyrogenically produced silicon dioxide and 40-99.5 wt.% of an organopolysiloxane compound of formula (Z-Si-R3-n-O-[SiR2O] x-SiR3-n-Z1). 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Independent claims are included for: (1) the preparation of (I); and (2) a silicon rubber mass comprising 0.5-60 wt.% of the pyrogenically produced silicon dioxide and 40-99.5 wt.% of an organopolysiloxane compound of formula (Z-Si-R3-n-O-[SiR2O] x-SiR3-n-Z1). R : 1-50C alkyl, 1-50C alkoxy-, aryl-, oxime- or acetoxy residue (optionally substituted by O, S, F, Cl, Br, I or polystyrene-, polyvinylacetate-, polyacrylate-, polymethacrylate- or polyacrylnitrile residue with 40-10000 repeating units); Z : OH, Cl, Br or acetoxy-, amino-, aminoxy-, oxime-, alkoxy-amido-, alkenyloxy-, acryloxy- or phosphate residue, where the organic residue exhibits 0-20 carbon atom; Z1 : oxime-, alkoxy-, acetoxy-, amino- or amido residue; n : 1-3; and x : 100-15000.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY COMPOSITIONS BASED THEREON COMPOUNDS THEREOF INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS |
| title | FUMED SILICA |
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