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US 12,753,311 B2Granted
Crosslinkable compositions based on organosilicon compounds
AssigneeWacker Chemie AG
InventorsUwe Scheim, Marko Prasse, Peter Schöley
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Abstract
A crosslinkable composition is based on organosilicon compounds that include (A) organopolysiloxanes of the formula (I), the formula (I) being (R7O)3-aSiR3aO(SiR42O)nSiR3a(OR7)3-a, and (B) siloxanes of the formula (II), the formular (II) being with the proviso that the sum of all x in formula (II) is greater than 0.
Claims11
A crosslinkable composition based on organosilicon compounds comprising
- (A) organopolysiloxanes of the formula
- where
- R4 are the same or different and are monovalent, optionally substituted hydrocarbon radicals,
- R7 are the same or different and are monovalent, optionally substituted hydrocarbon radicals,
- R3 are the same or different and are monovalent, optionally substituted hydrocarbon radicals,
- a are the same or different and are 0 or 1 and
- n is an integer from 30 to 2000,
- and
- (B) siloxanes of the formula (II)
- where
- R are the same or different and are monovalent, optionally substituted hydrocarbon radicals,
- R1 are the same or different and are monovalent hydrocarbon radicals having 2 to 16 carbon atoms, —CH2—NR6R5 radicals or —CH2NR11 radicals where R5 are hydrocarbon radicals having 1 to 12 carbon atoms, R6 is a hydrogen atom or radical R5, and R11 is a divalent hydrocarbon radical which is optionally interrupted by heteroatoms,
- R2 are the same or different and are monovalent, optionally substituted hydrocarbon radicals,
- x are the same or different and is 0 or an integer from 1 to 9 and
- z is 1 or 2,
- with the proviso that the sum of all x in formula (II) is greater than 0.
13 more elements
Dependencies are inferred from the claim text.