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US 7,022,866 B2Granted
Phosphonites
AssigneeBASF SE
InventorsMichael Bartsch, Robert Baumann, Dagmar Pascale Kunsmann-Keitel, Gerd Haderlein, Tim Jungkamp, Marco Altmayer, Wolfgang Siegel, Ferenc Molnar
Life of this patent
Estimating the term…
Abstract
Phosphonites I of the formula 1 or 2 where R1, R2 are each, independently of one another, hydrogen, an alkyl or alkylene group having from 1 to 8 carbon atoms or an alkoxy group having from 1 to 8 carbon atoms, with the proviso that R1 and R2 are not simultaneously H, R3 is H or methyl, R4 is t-butyl, R5, R6, R7, R8, R9 are each, independently of one another, H or an alkyl or alkylene group having from 1 to 8 carbon atoms.
Claims12
A phosphonite I of the formula 1 or 2
- where
- R1, R2 are each, independently of one another, hydrogen, an alkyl or alkylene group having from 1 to 8 carbon atoms or an alkoxy group having from 1 to 8 carbon atoms, with the proviso that R1 and R2 are not simultaneously H,
- R3 is H or methyl,
- R4 is t-butyl,
- R5, R6, R7, R8, R9 are each, independently of one another, H or an alkyl or alkylene group having from 1 to 8 carbon atoms.
2 more elements
Dependencies are inferred from the claim text.