Patent EP0143645A1 successfully refreshed from Google Patents.
US4131609A
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Silicon-phthalocyanine-siloxy monomers
Assignee: United States Department of the Navy
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Filing: 1978-02-23
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Granted: 1978-12-26
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Expires: 1998-02-23
Abstract
Abstract A silicon-phthalocyanine-siloxy monomer having the formula: PcSi(OSiR'Ph(OSiR".sub.2 ).sub.r X).sub.2 wherein X is a hydroxyl group or unreido group having the formula: ##STR1## Pc is a phthalocyanine nucleus, R' and R" are alkyl groups having from 1 to 8 carbon atoms, and r is an integer from 1 to 4. The monomers are useful as dyes and in polymer synthesis as reactive intermediates.
Inventors
- 👤 Kenneth J. Wynne
- 👤 John B. Davison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:29
CPC Classifications
C; C09; C09B; C09B47/00; C09B47/04; C09B47/045; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/10; C09B47/08
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
44 words
A silicon-phthalocyanine-siloxy monomer having the formula: PcSi(OSiR'Ph(OSiR.sub.2.sup.").sub.r X).sub.2 wherein R' and R" are alkyl groups having from 1 to 8 carbon atoms, r is an integer from 1 to 4, and x is a hydroxyl group or an ureido group having the formula: ##STR4##
Claim 2
Dependent Claim
44 words
A silicon-phthalocyanine-siloxy monomer having the formula: PcSi(OSiR'Ph(OSiR.sub.2.sup.").sub.r X).sub.2 wherein R' and R" are alkyl groups having from 1 to 8 carbon atoms, r is an integer from 1 to 4, and x is a hydroxyl group or an ureido group having the formula: ##STR4##
Claim 3
Dependent Claim
19 words
The monomer of claim 1 wherein R' and R" are alkyl groups having from 1 to 3 carbon atoms.
Claim 4
Dependent Claim
11 words
The monomer of claim 1 where r is 2 or 3.
Claim 5
Dependent Claim
12 words
The monomer of claim 3 wherein R' and R" are methyl groups.
Claim 6
Dependent Claim
12 words
The monomer of claim 3 wherein R' and R" are ethyl groups.
Claim 7
Dependent Claim
10 words
The monomer of claim 2 wherein r is 1 .
References Cited (Backward Citations)
US3996196A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-12-25 | 1982-06-26 | 1982-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-25 | 1986-06-26 | 1986-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-25 | 1990-06-26 | 1990-12-26 | $7700.00 | Window Closed / Lapsed |