Aluminosiloxanes, titanosiloxanes, (poly)stannosiloxanes, and their preparation
First Claim
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1. An aluminosiloxane having at least one Al--O--Si linkage in its molecule and represented by the following general formula (1):
- ##STR27## wherein R is a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group having 1 to 20 carbon atoms, R'"'"' is a substituted or unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms, letters k, m, and n are positive integers inclusive of 0, and k+m+n≧
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Abstract
Novel aluminosiloxanes having an Al--O--Si linkage, titanosiloxanes having a Ti--O--Si linkage, and stannosiloxanes having a Sn--O--Si linkage in a molecule are provided. Aluminosiloxanes are formed by reacting aluminum alkoxides with cyclotrisiloxanes. Titanosiloxanes are formed by reacting titanium alkoxides with cyclotrisiloxanes. Stannosiloxanes are formed by reacting diorganotin dialkoxides with cyclotrisiloxanes. Reaction processes are simple.
28 Citations
18 Claims
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1. An aluminosiloxane having at least one Al--O--Si linkage in its molecule and represented by the following general formula (1):
- ##STR27## wherein R is a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group having 1 to 20 carbon atoms, R'"'"' is a substituted or unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms, letters k, m, and n are positive integers inclusive of 0, and k+m+n≧
1. - View Dependent Claims (2, 9, 10, 11)
- ##STR27## wherein R is a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group having 1 to 20 carbon atoms, R'"'"' is a substituted or unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms, letters k, m, and n are positive integers inclusive of 0, and k+m+n≧
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3. A titanosiloxane having at least one Ti--O--Si linkage in its molecule and represented by the following general formula (4 ):
- ##STR30## wherein R is a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group having 1 to 20 carbon atoms, R'"'"' is a substituted or unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms, letters a, b, c, and d are positive integers inclusive of 0, and a+b+c+d≧
1. - View Dependent Claims (4, 12, 13, 14)
- ##STR30## wherein R is a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group having 1 to 20 carbon atoms, R'"'"' is a substituted or unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms, letters a, b, c, and d are positive integers inclusive of 0, and a+b+c+d≧
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5. A stannosiloxane of the following general formula (6):
- ##STR33## wherein R1 and R2 are independently selected from substituted or unsubstituted monovalent hydrocarbon groups having 1 to 20 carbon atoms,
R3 is independently a hydrogen atom or substituted or unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms, letters x and y are positive integers inclusive of 0 with the proviso that both x and y are not equal to 0 at the same time. - View Dependent Claims (7, 15, 16)
- ##STR33## wherein R1 and R2 are independently selected from substituted or unsubstituted monovalent hydrocarbon groups having 1 to 20 carbon atoms,
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6. A polystannosiloxane of the following general formula (7):
- ##STR34## wherein R2 is a substituted or unsubstituted monovalent hydrocarbon group having 1 to 20 carbon atoms,
R3 is a hydrogen atom or substituted or unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms, R4 is a hydrogen atom or substituted or unsubstituted monovalent hydrocarbon groups having 1 to 20 carbon atoms, letters x and y are positive integers inclusive of 0 with the proviso that both x and y are not equal to 0 at the same time, and z is an integer of at least 2. - View Dependent Claims (8, 17, 18)
- ##STR34## wherein R2 is a substituted or unsubstituted monovalent hydrocarbon group having 1 to 20 carbon atoms,
Specification