Back to results
US 2002/0120087 A1Published application
Certain silicone polyethers, methods for making them and uses
AssigneeDow Corning Corporation
InventorsKatherine Sue Clement, Kenneth Michael Lee, Lenin James Petroff, Wanda Wells Rauscher, Richard Michael Wehmeyer, Robert Howard Whitmarsh
Life of this patent
Estimating the term…
Abstract
There are disclosed silicone polyether compositions, methods for making them and their uses. The compositions are based on polyethers initiated by non-isomerizing alkenyl or alkynyl alcohols.
Claims27
A silicone based polyether comprising a monovalent group, R, with R having an average formula:
- 17
- wherein,
- Z is bonded to Si and —Z— is —CH2CH2- or —CH═CH—;
- R1 and R2 are independently alkyl, phenyl, an alkyl substituted phenyl, a phenyl substituted alkyl, one of the four latter groups substituted or further substituted by one or more of halogen, NO2, NH2 or an amine group whenever —Z— is —CH2CH2-, or
- R1 and R2 are independently H, halogen, NO2, NH2, an amine group, alkyl, phenyl, an alkyl substituted phenyl, a phenyl substituted alkyl, one of the four latter mentioned groups substituted or further substituted by one or more of halogen, NO2, NH2 or an amine group whenever —Z— is —CH═CH—, and regardless of choice of —Z—,
- R1 and R2 may be independently aldehyde, keto or ester functional;
- R3 is a divalent hydrocarbon group which may be substituted by one or more of halogen, NO2, NH2 or an amine group, or R3 is a nullity;
- R4 is —CH(R5)-CH2-, —CH2-CH(R5)- or a combination of these;
- R5 is H, methyl, ethyl, phenyl or may vary among these within the same molecule in any proportion or order, with the proviso that when —Z— is —CH2CH2-, R1 and R2 are free of halogen and nitrogen, and all R5 groups are solely some combination of H and methyl, then —CH2CH2- groups must make up on average at least 60 percent by weight of the total R4 groups per molecule;
- m=3 to 100 with the proviso that the range for m is expanded to 1 to 100
- whenever —Z— is —CH2CH2- and the equivalent polydispersity of R is less than
- 1.4 or whenever R contains halogen, NO2, NH2, an amine group, or is aldehyde, keto or ester functional;
- R6 is H, an alkyl group or
- 18
- and
- R7 is an alkyl group.
13 more elements
A polymer of average formula:
- 19
- wherein R, R1, R2 and R3 are independently alkyl groups having 30 carbons or less or phenyl;
- 20
- x is 0 to 500;
- y is 1 to 100;
- m is 3 to 100;
- R5 is an alkyl group;
- R6 is H, an alkyl group or C(O)R7;
- R7 is an alkyl group;
- R8 is H or an alkyl group;
- R9 is CH(R10)CH2, CH2CH(R10) or a combination of these;
- R10 is H, methyl, ethyl or phenyl;
- and
- the equivalent polydispersity of R4 is less than 1.4.
11 more elements
A polymer of average formula:
- 21
- wherein R, R1 and R2 are independently alkyl groups having 30 carbons or less or phenyl;
- 22
- x is 0 to 500;
- m is 3 to 100;
- R4 is an alkyl group;
- R5 is H, alkyl or C(O)R6;
- R6 is an alkyl group;
- R7 is H or an alkyl group;
- R9 is CH(R10)CH2, CH2CH(R10) or a combination of these;
- R10 is H, methyl, ethyl or phenyl;
- and
- the equivalent polydispersity of R3 is less than 1.4.
10 more elements
A method for making a silicone based polyether, the method comprising:
- hydrosilating U with a silicone containing an SiH group, where
- 23
- wherein,
- Y— is CH2═CH— or CH≡C—;
- R1 and R2 are independently alkyl, phenyl, an alkyl substituted phenyl, a phenyl substituted alkyl, one of the four latter groups substituted or further substituted by one or more of halogen, NO2, NH2 or an amine group whenever Y— is CH2═CH—, or
- R1 and R2 are independently H, halogen, NO2, NH2, an amine group, alkyl, phenyl, an alkyl substituted phenyl, a phenyl substituted alkyl, one of the four latter mentioned groups substituted or further substituted by one or more of halogen, NO2, NH2 or an amine group whenever Y— is CH≡C—, and regardless of choice of Y—,
- R1 and R2 may be independently aldehyde, keto or ester functional;
- R3 is a divalent hydrocarbon group which may be substituted by one or more of halogen, NO2, NH2 or an amine group, or R3 is a nullity;
- R4 is —CH(R5)-CH2-, —CH2-CH(R5)- or a combination of these;
- R5 is H, methyl, ethyl, phenyl or may vary among these within the same molecule in any proportion or order, with the proviso that when Y— is CH2═CH—, R1 and R2 are free of halogen and nitrogen, and all R5 groups are solely some combination of H and methyl, then —CH2CH2- groups must make up on average at least 60 percent by weight of the total R4 groups per molecule;
- m=3 to 100 with the proviso that the range for m is expanded to 1 to 100 whenever Y— is CH2═CH— and the equivalent polydispersity of U is less than 1.4 or whenever U contains halogen, NO2, NH2, an amine group, or is aldehyde, keto or ester functional;
- R6 is H, an alkyl group or
- 24
- and
- R7 is an alkyl group.
12 more elements
Dependencies are inferred from the claim text.