Hydrosilylation Catalysts Made With Terdentate Nitrogen Ligands And Compositions Containing The Catalysts
AssigneeDow Corning Corporation
InventorsKurt Brandstadt, Simon Cook, Avril Surgenor, Richard Taylor, Binh Nguyen, Ming-Shin Tzou
Life of this patent
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Abstract
A composition contains (A) a hydrosilylation reaction catalyst and (B) an aliphatically unsaturated compound having an average, per molecule, of one or more aliphatically unsaturated organic groups capable of undergoing hydrosilylation reaction. The composition is capable of reacting via hydrosilylation reaction to form a reaction product, such as a silane, a gum, a gel, a rubber, or a resin. Ingredient (A) contains a metal-ligand complex that can be prepared by a method including reacting a metal precursor and a ligand.
Claims34
A method comprising:
- (1) combining ingredients comprising an M precursor and a ligand, thereby preparing a reaction product, where
- the M precursor has formula (a) Ag-Ax, where each A is independently a displaceable substituent, and subscript x is an integer with a value ranging from 1 to a maximum valence number of Ag;
- and
- the ligand has the general formula (i):
- where A1 and A2 are each independently selected from a monovalent organic group, a halogen atom, or a monovalent inorganic heteroatom containing group;
- and A3, A4, A5, A6, A7, A8, A9, A10, and A11 are each independently selected from a monovalent organic group, a halogen atom, a hydrogen atom, or a monovalent inorganic heteroatom containing group;
- with the proviso that one or more of A4 and A5, A8 and A9, A9 and A11, A11 and A10, A10 and A7, A7 and A6, and A6 and A3 may bond together to form a fused ring structure.
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A method comprising:
- (1) combining ingredients comprising an M precursor and a ligand, thereby preparing a reaction product, where
- the M precursor has formula (c) Cu-Ax, where each A is independently a displaceable substituent, and subscript x is an integer with a value ranging from 1 to a maximum valence number of Cu;
- and
- the ligand has the general formula (ii) or (iii):
- where A12, A13, A14, A15, A16, A17, A18, A19, A20, A21, and A22 are each independently selected from a monovalent organic group, a halogen atom, a hydrogen atom, and a monovalent inorganic heteroatom containing group;
- with the proviso that A16, A17, and A22 are not simultaneously Bu;
- and with the proviso that one or more of A15 and A16, A19 and A20, A20 and A22, A22 and A21, A21 and A18, A18 and A17, and A17 and A14 may bond together to form a fused ring structure;
- where A23, A24, A25, A26, A27, A28,and A29 are each independently selected from a monovalent organic group, a halogen atom, a hydrogen atom, or a monovalent inorganic heteroatom containing group;
- with the proviso that A23 and A29 are not simultaneously Bu, an ortho-(di-isopropyl) phenyl group, a para-chloro-phenyl group, or a para-(diethylamino)phenyl group;
- with the proviso that one or more of A27 and A28, A27 and A26, A26 and A55, and A25 and A24 may bond together to form a fused ring structure;
- and with the proviso that one or both of A28 and A29 and/or A24 and A23 may bond together to form a fused ring structure so long as the fused ring structure is not pyridyl.
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A method comprising:
- (1) combining ingredients comprising an M precursor and a ligand, thereby preparing a reaction product, where
- the M precursor has formula (f) Ir-Ax, where each A is independently a displaceable substituent, and subscript x is an integer with a value ranging from 1 to a maximum valence number of Ir;
- and
- the ligand has the general formula (vi) or (vii):
- where A48, A49, A50, A51, A52, A53, A54, A55, A56, A57, and A58 are each independently selected from a monovalent organic group, a halogen atom, a hydrogen atom, and a monovalent inorganic heteroatom containing group;
- with the proviso that A48 and A49 are not simultaneously Br;
- and with the proviso that one or more of A51 and A52, A55 and A56, A56 and A58, A58 and A57, A57 and A54, A54 and A53, and A53 and A50 may bond together to form a fused ring structure;
- where A59, A60, A61, A62, A63, A64, and A65 are each independently selected from a monovalent organic group, a halogen atom, a hydrogen atom, or a monovalent inorganic heteroatom containing group;
- with the proviso that one or more of A63 and A64, A63 and A62, A62 and A61, and A61 and A60 may bond together to form a fused ring structure;
- and with the proviso that one or both of A64 and A65 and/or A60 and A59 may bond together to form a fused ring structure so long as the fused ring structure is not pyridyl.
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A method comprising:
- (1) combining ingredients comprising an M precursor and a ligand, thereby preparing a reaction product, where
- the M precursor has formula (k) Ru-Ax, where each A is independently a displaceable substituent, and subscript x is an integer with a value ranging from 1 to a maximum valence number of Ru;
- and
- the ligand has the general formula (i) or (x):
- where A1 and A2 are each independently selected from a monovalent organic group, a halogen atom, or a monovalent inorganic heteroatom containing group;
- and A3, A4, A5, A6, A7, A8, A9, A10, and A11 are each independently selected from a monovalent organic group, a halogen atom, a hydrogen atom, or a monovalent inorganic heteroatom containing group;
- with the proviso that one or more of A4 and A5, A8 and A9, A9 and A11, An and A10, A10 and A7, A7 and A6, and A6 and A3 may bond together to form a fused ring structure;
- where A80, A81, A82, A83, A84, A85, and A86 are each independently selected from a monovalent organic group, a halogen atom, a hydrogen atom, or a monovalent inorganic heteroatom containing group;
- with the proviso that A80 and A86 are not simultaneously an ortho-(di-isopropyl)-phenyl group;
- with the proviso that one or more of A85 and A84, A84 and A83, A83 and A82, and A82 and A81 may bond together to form a fused ring structure;
- and with the proviso that one or both of A85 and A86 and/or A81 and A80 may bond together to form a fused ring structure so long as the fused ring structure is not pyridyl.
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Dependencies are inferred from the claim text.