Claims
- 1. An article of manufacture comprising:
- (a) a substrate, having coated thereon,
- (b) a diglyme soluble siloxane-imide copolymer composition having the general formula ##STR32## where each Ar is an independently selected aromatic radical; R is a substituted or unsubstituted hydrocarbylene radical or a radical of the formula--Q--Z--R.sup.3 --, where Q is a substituted or unsubstituted aromatic group, Z is--0--, --S--, ##STR33## and R.sup.3 is a substituted or unsubstituted hydrocarbylene; each R.sup.1 is an independently selected substituted or unsubstituted hydrocarbyl radical; R.sup.2 is a radical selected from the group consisting of ##STR34## where R.sup.4 is an alkyl radical having from 1 to 9 carbon atoms and R.sup.5 is an alkyl radical having from 1 to 4 carbon atoms; Y is oxygen or sulfur, and a, b, c and n are all integers equal to or greater than 1.
- 2. The article of claim 1 wherein said substrate is an electronic device.
- 3. The composition of claim 1 wherein at least one Ar has a benzene nucleus, naphthalene nucleus or a nucleus of the formula ##STR35## where m is 0 or l and E is --O--, --S--, ##STR36## or --CyH.sub.2y, where y is an integer from 1 to 8.
- 4. The composition of claim 1 wherein at least one Ar has the formula ##STR37## where G is phenylene or a group of the formula ##STR38## where m is O or l and E is --O--, --S--, ##STR39## or --CyH.sub.2y, where y is an integer from 1 to 8.
- 5. The composition of claim 1 wherein at least one Ar group has the formula ##STR40##
- 6. The composition of claim 1 wherein R is a lower alkylene radical.
- 7. The composition of claim 8 wherein R.sup.1 is independently selected from methyl, ethyl, propyl, butyl, phenyl, vinyl and 3,3,3-trifluoropropyl radicals.
- 8. The composition of claim 8 wherein n is an integer from 5 to 100.
- 9. The composition of claim 8 wherein Y is oxygen.
- 10. The composition of claim 8 wherein R.sup.4 has from 1 to 3 carbon atoms and R.sup.5 has 1 or 2 carbon atoms.
- 11. The composition of claim 8 wherein there is included at least one photosensitive radical.
- 12. The composition of claim 11 wherein said photosensitive radicals are acrylates, cinnamates 2,3-diphenylcylopropenol esters, or a mixture thereof.
CROSS REFERENCE TO RELATED APPLICATIONS
This application is a division of U.S. application Ser. No. 805,156, filed Dec. 4, 1985, now U.S. Pat. No. 4,670,497, which in turn was a continuation of U.S. application Ser. No. 662,930, filed Oct. 19, 1984, now U.S. Pat. No. 4,586,997.
US Referenced Citations (7)
Divisions (1)
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Number |
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805156 |
Dec 1985 |
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Continuations (1)
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662930 |
Oct 1984 |
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