Nickel containing hydrosilylation catalysts and compositions containing the catalysts

1. A composition comprising:

(A) a product prepared by a method comprising

(1) combining ingredients comprising an Ni precursor and a ligand, thereby preparing a reaction product, where

the Ni precursor has formula (i) Ni-A 2 , where each A is independently a monovalent organic group containing at least one silicon atom, and

the ligand is general formula (xviii), where general formula (xviii) is

where A 132 , A 133 , and A 134 are each independently selected from a monovalent organic group, hydrogen, a halogen, or an inorganic heteroatom containing group, and A 131 and A 135 are independently selected from a monovalent organic group, hydrogen, and an inorganic heteroatom containing group; and

(B) an aliphatically unsaturated compound having an average, per molecule, of one or more aliphatically unsaturated organic groups capable of undergoing hydrosilylation reaction; and

(c) a polyorganohydrogensiloxane.

2. The composition of claim 1 , where the composition further comprises one or more additional ingredients, which are distinct from ingredients (A), (B), and (C), and which are selected from the group consisting of (D) a spacer; (E) an extender, a plasticizer, or a combination thereof; (F) a filler; (G) a filler treating agent; (H) a biocide; (I) a stabilizer, (J) a flame retardant; (K) a surface modifier; (L) a chain lengthener; (M) an endblocker; (N) a flux agent; (O) an anti-aging additive; (P) a pigment; (Q) an acid acceptor; (R) a rheological additive; (S) a vehicle; (T) a surfactant; (U) a corrosion inhibitor; and a combination thereof.

3. A method for making the composition of claim 1 , comprising: mixing ingredients comprising ingredients (A), (B), and (C).

4. The composition of claim 1 , where the ligand is

5. A composition comprising:

(A) a product prepared by a method comprising

1) combining ingredients comprising an Ni precursor and a ligand, thereby preparing a reaction product, where

the Ni precursor is a nickel metal compound comprising a monovalent organic group containing at least one halogen atom, and

the ligand is general formula (xviii), where general formula (xviii) is

where A 132 , A 133 , and A 134 are each independently selected from a monovalent organic group, hydrogen, a halogen, or an inorganic heteroatom containing group, and A 131 and A 135 are independently selected from a monovalent organic group, hydrogen, and an inorganic heteroatom containing group; and

(2) combining the reaction product with an ionic activator;

(B) an aliphatically unsaturated compound having an average, per molecule, of one or more aliphatically unsaturated organic groups capable of undergoing hydrosilylation reaction; and

(C) a silane of formula R 4 e SiH f , where subscript e is 0, 1, 2, or 3; subscript f is 1, 2, 3, or 4, with the proviso that a sum of (e+f) is 4, and each R 4 is independently a halogen atom or a monovalent organic group.

6. The composition of claim 5 , where the composition further comprises one or more additional ingredients, which are distinct from ingredients (A), (B), and (C), and which are selected from the group consisting of (D) a spacer; (E) an extender, a plasticizer, or a combination thereof; (F) a filler; (G) a filler treating agent; (H) a biocide; (I) a stabilizer, (J) a flame retardant; (K) a surface modifier; (L) a chain lengthener; (M) an endblocker; (N) a flux agent; (O) an anti-aging additive; (P) a pigment; (Q) an acid acceptor; (R) a rheological additive; (S) a vehicle; (T) a surfactant; (U) a corrosion inhibitor; and a combination thereof.

7. The composition of claim 5 , where the ligand is

8. A composition comprising:

(A) a product prepared by a method comprising

(1) combining ingredients comprising an Ni precursor and a ligand, thereby preparing a reaction product, where

the Ni precursor has formula (i) Ni-A 2 , where each A is independently a monovalent organic group containing at least one silicon atom, and

the ligand general formula (xviii) is

where A 132 , A 133 , and A 134 are each independently selected from a monovalent organic group, hydrogen, a halogen, or an inorganic heteroatom containing group, and A 131 and A 135 are independently selected from a monovalent organic group, hydrogen, and an inorganic heteroatom containing group; and

comprising (2) combining the reaction product with a reducing agent; and

(B) an aliphatically unsaturated compound having an average, per molecule, of one or more aliphatically unsaturated organic groups capable of undergoing hydrosilylation reaction; and

(c) a polyorganohydrogensiloxane.

9. The composition of claim 8 , where the ligand is

10. A composition comprising:

(A) a product prepared by a method comprising

(1) combining ingredients comprising an Ni precursor and a ligand, thereby preparing a reaction product, where

the Ni precursor has formula (i) Ni-A 2 , where each A is independently a monovalent organic group containing at least one silicon atom, and

the ligand is general formula (xviii), where general formula (xviii) is

where A 132 , A 133 , and A 134 are each independently selected from a monovalent organic group, hydrogen, a halogen, or an inorganic heteroatom containing group, and A 131 and A 135 are independently selected from a monovalent organic group, hydrogen, and an inorganic heteroatom containing group; and

(2) combining the reaction product with a reducing agent;

(B) an aliphatically unsaturated compound having an average, per molecule, of one or more aliphatically unsaturated organic groups capable of undergoing hydrosilylation reaction; and

(C) a silane of formula R 4 e SiH f , where subscript e is 0, 1, 2, or 3; subscript f is 1, 2, 3, or 4, with the proviso that a sum of (e+f) is 4, and each R 4 is independently a halogen atom or a monovalent organic group.