High softening temperature synthetic alkylsilicone wax
AssigneeClariant International Ltd.
InventorsW. Leonard Terry JR., Gary E. LeGrow
Life of this patent
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Abstract
A method for making high softening point linear and cyclic alkylsilicone waxes includes reacting a C30+ alpha olefin wax with a silicone hydride polymer in the presence of a catalyst. The high softening point linear and cyclic alkylsilicone waxes have softening points approximating those of natural waxes and, in consequence, can be used in applications which traditionally employ natural waxes.
Claims32
A method for making a high softening point linear alkylsilicone wax having the Formula (I)
- Me3SiO(RMeSiO)x(Me2SiO)ySiMe3 Formula (I)
- wherein R is
- H3C—(CH2)z
- z=28 to 100,
- x=1 to 1000,
- y=0 to 1000, and
- Me is CH3
- comprising the step of hydrosilylating an olefin wax having the Formula (III)
- H2C═CH—(CH2)n—CH3 Formula (III)
- wherein n is between 30 and 100 with a siloxane hydride polymer in the presence of a catalyst.
A method for making a high softening point cyclic alkylsilicone wax having the Formula (II)
- 4
- wherein R is
- H3C—(CH2)z
- z=28 to 100
- a=1 to 20,
- b=0 to 20,
- a+b ranges from 3 to 6, and
- Me is CH3
- comprising the step of hydrosilylating an olefin wax having the Formula (III)
- H2C═CH—(CH2)n—CH3 Formula (III)
- wherein n is between 20 and 100 with a siloxane hydride polymer in the presence of a catalyst.
An automotive polish comprising a high softening point linear alkylsilicone wax having the Formula (I):
- Me3SiO(RMeSiO)x(Me2SiO)ySiMe3 Formula (I)
- wherein R is
- H3C—(CH2)z
- z=28 to 100,
- x=1 to 1000,
- y=0 to 1000, and
- Me is CH3
An automotive polish comprising a high softening point cyclic alkylsilicone wax having the Formula (II)
- 6
- wherein R is
- H3C—(CH2)z
- z=28 to 100
- a=1 to 20,
- b=1 to 20,
- a+b is less than or equal to 6, and
- Me is CH3
A compound comprising a high softening point linear alkylsilicone wax having the Formula (I):
- Me3SiO(RMeSiO)x(Me2SiO)ySiMe3 Formula (I)
- wherein R is
- H3C—(CH2)z
- z=28 to 100,
- x=1 to 1000,
- y=0 to 1000, and
- Me is CH3
- or
- Formula (II)
- 7
- wherein R is
- H3C—(CH2)z
- z=28 to 100
- a=1 to 20,
- b=1 to 20,
- a+b ranges from 3 to 6, and
- Me is CH3
Dependencies are inferred from the claim text.