Claims
- 1. An article having a barrier coating resistant to corrosion and solvents made by
- (a) coating at least a portion of a surface of an article with a composition comprising a random copolymer of an isoolefin of 4 to 7 carbon atoms and para-alkylstyrene comonomer, said isoolefin comprising 10 to 99.5 weight % of said copolymer and said para-alkylstyrene comprises 0.5 to 90 weight % of said copolymer, wherein about 0.5 to 55 weight % of said copolymer comprises para-alkylstyrene monomers having a photo-initiator substituted on the pendent alkyl group, said copolymer having a substantially homogenous compositional distribution; and
- (b) exposing a portion of said coating to gamma, UV, electron beam, visible, or microwave radiation to crosslink the copolymer.
- 2. The article of claim 1 further wherein said coating is etch-resistant and patterned.
- 3. A surface having lithographic image thereon made by
- (a) applying a coating to at least a portion of a surface of an article with a composition comprising a random copolymer of an isoolefin of 4 to 7 carbon atoms and para-alkylstyrene comonomer said isoolefin comprising 10 to 99.5 weight % of said copolymer and said para-alkylstyrene comprises 0.5 to 90 weight % of said copolymer, wherein about 0.5 to 55 weight % of said copolymer comprises para-alkylstyrene monomers having a photoinitiator substituted on the pendent alkyl group, said copolymer having a substantially homogenous compositional distribution;
- (b) selectively exposing a portion of said coating to gamma, UV, electron beam, visible, or microwave radiation to crosslink the copolymer, thereby forming a crosslinked latent lithographic image; and
- (c) removing the uncrosslinked copolymer to develop the lithographic image.
Parent Case Info
This is a divisional application of U.S. Ser. No. 08/298,450, filed on Oct. 27, 1994, which is a divisional application of U.S. Ser. No. 07/982,104, filed on Nov. 24, 1992, now U.S. Pat. No. 5,376,503, which is a continuation application of U.S. Ser. No. 07/631,610, filed Dec. 20, 1990.
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Date |
Kind |
3002003 |
Merrill et al. |
Sep 1961 |
|
3096311 |
Merrill et al. |
Jul 1963 |
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3100702 |
Rauner et al. |
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Divisions (2)
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Number |
Date |
Country |
Parent |
298450 |
Oct 1994 |
|
Parent |
982104 |
Nov 1992 |
|
Continuations (1)
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Number |
Date |
Country |
Parent |
631610 |
Dec 1990 |
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