Claims
- 1. The siloxy-containing products produced by the method comprising the steps of:
- (a) subjecting a silyl diketone to photolysis under temperature conditions of from -20.degree. to 50.degree. C. effective for generating a siloxy ketene intermediate therefrom, said silyl diketone having the formula ##STR7## wherein Si is silicon, R.sub.1 and R.sub.4 are hydrocarbon groups containing from 1 to 18 carbons, and R.sub.2 and R.sub.3 are hydrocarbon groups containing from 1 to 6 carbons, said photolysis being carried out by irradiating said silyl diketone with light of a wavelength from 200 to 800 nm; and thereafter,
- (b) contacting the generated siloxy ketene intermediate with a ketene-reactive compound under temperature conditions of from about -20.degree. to 50.degree. C. effective for reaction therewith, said compound being selected from the group consisting of (i) a diene polymer containing a plurality of unsaturated carbon bonds, (ii) an alkylene or cycloalkylene compound containing at least one unsaturated linkage; and (iii) an aldehyde containing one or more aldehyde groups.
- 2. The siloxy-containing products produced by the method of claim 1 in which said ketene-reactive compound is diene polymer containing a plurality of unsaturated carbon bonds.
- 3. The siloxy-containing products produced by the method of claim 1 in which said ketone-reactive compound is alkylene or cycloalkylene compound containing at least one unsaturated linkage.
- 4. The siloxy-containing products produced by the method of claim 1 in which said ketene-reactive compound is an aldehyde containing one or more aldehyde groups.
- 5. The siloxy-containing polymer products produced by the method comprising the steps of:
- (a) subjecting a silyl diketone to photolysis under temperature conditions of from -20.degree. to 50.degree. C. effective for generating a siloxy ketene intermediate therefrom, said silyl diketone having the formula ##STR8## wherein Si is silicon, R.sub.1 and R.sub.4 are hydrocarbon groups containing 1 to 6 carbons, and R.sub.2 and R.sub.3 are methyl groups, said photolysis being carried out by irradiating said silyl diketone with light of a wavelength from 200 to 800 nm; and
- (b) concurrently with the generation of the siloxy ketene intermediate, contacting it with a conjugated diene polymer or copolymer containing a plurality of diene groups under temperature conditions of from -20.degree. to 50.degree. C. effective for reaction therewith.
- 6. The siloxy-containing products produced by the method comprising the steps of:
- (a) subjecting a silyl diketone to photolysis under temperature conditions of from -20.degree. to 50.degree. C. effective for generating a siloxy ketene intermediate therefrom, said silyl diketone having the formula ##STR9## wherein Si is silicon, R.sub.1 and R.sub.4 are hydrogen groups containing from 1 to 18 carbons, and R.sub.2 and R.sub.3 are hydrocarbon groups containing from 1 to 6 carbons, said photolysis being carried out by irradiating said silyl diketone with light of a wavelength from 200 to 800 nm; and
- (b) concurrently with the generation of the siloxy ketene intermediate contacting it with an alkylene compound under temperature conditions of from -20.degree. to 50.degree. C. effective for reaction therewith, said compound being selected from the group consisting of aliphatic alkenes containing from 2 to 20 carbons and cycloalkenes containing from 3 to 20 carbons.
- 7. The siloxy-containing products produced by the method comprising the steps of:
- (a) subjecting a silyl diketone to photolysis under temperature conditions of from -20.degree. to 50.degree. C. effective for generating a siloxy ketene intermediate therefrom, said silyl diketone having the formula ##STR10## wherein Si is silicon, R.sub.1 and R.sub.4 are hydrogen groups containing from 1 to 18 carbons, and R.sub.2 and R.sub.3 are hydrocarbon groups containing from 1 to 6 carbons, said photolysis being carried out by irradiating said silyl diketone with light of a wavelength from 200 to 800 nm; and
- (b) concurrently with the generation of the siloxy ketene intermediate contacting it with aldehyde compounds containing from 1 to 2 aldehyde groups and from 2 to 20 carbons under temperature conditions of from -20.degree. to 50.degree. C. effective for reaction therewith.
- 8. A conjugated diene polymer or copolymer containing a plurality of siloxy cyclobutanone groups represented by the formula ##STR11## wherein Si is silicon, R.sub.1 and R.sub.4 are hydrogen groups containing from 1 to 18 carbons, and R.sub.2 and R.sub.3 are hydrocarbon groups containing from 1 to 6 carbons.
- 9. A coated article comprising a substrate coated on at least one surface with a layer of the polymer or copolymer of claim 8.
- 10. A conjugated diene polymer or copolymer containing a plurality of siloxy cyclobutanone groups represented by the formula ##STR12## wherein Si is silicon, and R.sub.1 and R.sub.4 are hydrocarbon groups containing from 1 to 6 carbons.
- 11. A coated article comprising a substrate coated on at least one surface with a layer of the polymer or copolymer of claim 10.
Parent Case Info
RELATED APPLICATION
This application is a division of application Ser. No. 101,589 filed Sept. 28, 1987 now Patent No. 4,812,214.
US Referenced Citations (3)
Divisions (1)
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Number |
Date |
Country |
Parent |
101589 |
Sep 1987 |
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