Claims
- 1. A process for preparing a reactive silicon group-containing polymer, containing at least one reactive silicon group per molecule, a main chain of which is essentially a copolymer of organopolysiloxane and polyoxyalkylene, which comprises allowing an alkylene oxide to undergo ring opening polymerization with an organopolysiloxane compound having an active hydrogen-containing functional group with which said alkylene oxide is reactive as an initiator in the presence of a catalyst to synthesize a polymer of organopolysiloxane and polyoxyalkylene, and then introducing a reactive silicon group into said polymer.
- 2. The process for preparing a polymer according to claim 1, wherein a double metal cyanide complex is used as catalyst.
- 3. The process for preparing a polymer according to claim 1, wherein said organopolysiloxane compound is at least one of compounds represented by formulae (1) (3): ##STR7## wherein X represents a hydrocarbon group containing at least one functional group selected from the group consisting of --OH, --SH, --NH.sub.2, --NHR.sup.10 and --COOH which may contain ether bond, thioether bond or amino bond; R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.6, R.sup.7, R.sup.8 and R.sup.10 each represent the same or different C.sub.1-6 hydrocarbon group; R.sup.5 and R.sup.9 each represent a C.sub.1-18 hydrocarbon group; n represents an integer 0 to 200; and m represents an integer 1 to 10.
- 4. The process for preparing a polymer according to claim 3, wherein said organopolysiloxane compound is a polydimethylpolysiloxane compound represented by formulae (1) to (3) wherein R.sup.1 and R.sup.2 each represent a methyl group.
- 5. The process for preparing a polymer according to claim 3, wherein X is a hydroxyalkyl group, dihydroxyalkyl group, hydroxyalkoxy-substituted alkyl group, mercaptoalkyl group, aminoalkyl group, N-aminoalkyl-substituted alkyl group or alkoxyalkyl group.
- 6. The process for preparing polymer a according to claim 1, wherein said alkylene oxide is a C.sub.2-4 alkylene oxide.
- 7. A process for preparing a reactive silicon group-containing polymer, containing at least one reactive silicon group per molecule, a main chain of which is essentially a copolymer of organopolysiloxane and polyoxyalkylene, which comprises allowing an alkylene oxide to undergo ring opening polymerization with an organopolysiloxane compound having an epoxy group in the presence of a catalyst with an active hydrogen-containing compound as an initiator to synthesize a polymer the main chain of which is essentially a copolymer of organopolysiloxane and polyoxyalkylene, and then introducing a reactive silicon group into said polymer.
- 8. The process for preparing a polymer according to claim 7, wherein is used as a catalyst a double metal cyanide complex.
- 9. The process for preparing a polymer according to claim 7, wherein said organopolysiloxane compound containing an epoxy group is at least one of compounds represented by the following general formulae (4) to (6): ##STR8## wherein X.sub.1 represents a hydrocarbon group containing at least one epoxy which may contain ether bond, thioether bond or amino bond; and R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8, R.sup.9, R.sup.10, n and m are as defined above.
- 10. The process for preparing a polymer according to claim 9, wherein said organopolysiloxane compound containing an epoxy group is a polydimethylpolysiloxane compound wherein R.sup.1 and R.sup.2 each represent a methyl group.
- 11. The process for preparing a polymer according to claim 9, wherein said alkylene oxide is a C.sub.2-4 alkylene oxide.
Parent Case Info
This is a divisional of application Ser. No. 08/671,076 filed Jun. 27, 1996 now U.S. Pat. No. 5,719,249, which is a continuation of Ser. No. 08/364,099 filed Dec. 27, 1994, abandoned.
US Referenced Citations (10)
Foreign Referenced Citations (4)
Number |
Date |
Country |
55-13767 |
Jan 1980 |
JPX |
60-167259 |
Feb 1987 |
JPX |
02-93225 |
Mar 1991 |
JPX |
03-160981 |
Dec 1992 |
JPX |
Divisions (1)
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Number |
Date |
Country |
Parent |
671076 |
Jun 1996 |
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Continuations (1)
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Number |
Date |
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Parent |
364099 |
Dec 1994 |
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