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US5202053A
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Polymerizable nematic monomer compositions
Assignee: Elsicon Inc
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Filing: 1991-02-22
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Granted: 1993-04-13
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Expires: 2011-02-22
Abstract
Abstract This invention is a polymerizable nematic monomer composition comprising (A) 20 to 80 weight % of at least one monomer having the following general formula wherein n is 10, 12 or 14, and (B) 80 to 20 weight % of at least one monomer having the following general formula wherein n is 4, 6 or 8: <IMAGE> (I) wherein R is CH3 or H and Y is covalent bond or -CO2-.
Inventors
- 👤 Paul J. Shannon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:04
CPC Classifications
C; C07; C07C; C07C59/00; C07C59/40; C07C59/58; C07C59/64; C07C255/00; C07C255/49; C07C255/54; C07C255/55; C07C69/00; C07C69/52; C07C69/533; C07C69/54; C09; C09K; C09K19/00; C09K19/04; C09K19/06; C09K19/08; C09K19/10; C09K19/12; C09K19/20; C09K19/2007; C09K19/38; C09K19/3833; C09K19/3842; C09K19/3852; C09K2019/0444; C09K2019/0448
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
72 words
A polymerizable nematic monomer composition consisting essentially of (A) 20 to 80 weight % of at least one monomer having the general formula (I) wherein n is 10, 12 or 14, and (B) 80 to 20 weight % of at least one monomer having the general formula (I) wherein n is 4, 6 or 8: ##STR6## wherein R is CH 3 or H and Y is covalent bond or --CO 2 --.
Claim 2
Dependent Claim
72 words
A polymerizable nematic monomer composition consisting essentially of (A) 20 to 80 weight % of at least one monomer having the general formula (I) wherein n is 10, 12 or 14, and (B) 80 to 20 weight % of at least one monomer having the general formula (I) wherein n is 4, 6 or 8: ##STR6## wherein R is CH 3 or H and Y is covalent bond or --CO 2 --.
Claim 3
Dependent Claim
68 words
A polymerizable nematic monomer composition as claimed in claim 1 having a total of two, three or four monomers of the general formula (I), wherein (A) 30 to 70 weight % of the monomers of the general formula (I) have n is 10, 12 or 14 and (B) 30 to 70 weight % of the monomers of the general formula (I) have n is 4, 6 or 8.
Claim 4
Dependent Claim
48 words
A polymerizable nematic monomer composition as claimed in claim 1, containing (A) 30 to 70 weight % of one monomer having n is 10, 12 or 14 and (B) 30 to 70 weight % of one or two of the monomers having n is 4, 6 or 8.
Claim 5
Dependent Claim
18 words
A polymerizable nematic monomer composition as claimed in claim 1, further comprising 0.5 to 2.0 weight % photoinitiator.
Claim 6
Dependent Claim
29 words
A polymerizable nematic monomer composition as claimed in claim 4, wherein the photoinitiator is selected from the group consisting of benzophenone, 2,2-dimethoxy-2-phenylacetophenone, 2,2-diethoxyacetophenone, 2-benzoyloxyacetophenone, 2-chlorothioxanthone and 2-hydroxycyclohexyl phenyl ketone.
Claim 7
Dependent Claim
18 words
A polymerizable nematic monomer composition as claimed in claim 2, further comprising 0.5 to 2.0 weight % photoinitiator.
Claim 8
Dependent Claim
29 words
A polymerizable nematic monomer composition as claimed in claim 6, wherein the photoinitiator is selected from the group consisting of benzophenone, 2,2-dimethoxy-2-phenylacetophenone, 2,2-diethoxyacetophenone, 2-benzoyloxyacetophenone, 2-chlorothioxanthone and 2-hydroxycyclohexyl phenyl ketone.
Claim 9
Dependent Claim
18 words
A polymerizable nematic monomer composition as claimed in claim 3, further comprising 0.5 to 2.0 weight % photoinitiator.
Claim 10
Dependent Claim
29 words
A polymerizable nematic monomer composition as claimed in claim 8, wherein the photoinitiator is selected from the group consisting of benzophenone, 2,2-dimethoxy-2-phenylacetophenone, 2,2-diethoxyacetophenone, 2-benzoyloxyacetophenone, 2-chlorothioxanthone and 2-hydroxycyclohexyl phenyl ketone.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-04-12 | 1996-10-12 | 1997-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-04-12 | 2000-10-12 | 2001-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-04-12 | 2004-10-12 | 2005-04-13 | $7700.00 | Window Closed / Lapsed |