US4696990A
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Novel photocrosslinkable liquid crystalline polymers
Assignee: Eastman Kodak Co
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Filing: 1986-03-31
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Granted: 1987-09-29
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Expires: 2006-03-31
Abstract
Abstract A photocrosslinkable liquid crystalline polymer comprising a vinyl backbone having from 60 to 100 mole percent of recurring pendant groups comprising an alkyl or alkoxy light-sensitive cinnamate component connected to the vinyl backbone through (a) a component which provides stiffness and rod-like character to the cinnamate component and (b) a spacer group having from 7 to 14 atoms.
Inventors
- 👤 John M. Noonan
- 👤 Anthony F. Caccamo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:24
CPC Classifications
C; C09; C09K; C09K19/00; C09K19/04; C09K19/38; C09K19/3833; C09K19/3842; C09K19/3852; G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; G03F7/0388
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
61 words
A photocrosslinkable liquid crystalline polymer comprising a vinyl backbone having from 60 to 100 mole percent of recurring pendant groups comprising an alkyl or alkoxy light-sensitive cinnamate component connected to the vinyl backbone through (a) a component which provides stiffness and rod-like character to the cinnamate component and (b) a spacer group having a backbone of from 7 to 14 atoms.
Claim 2
Dependent Claim
61 words
A photocrosslinkable liquid crystalline polymer comprising a vinyl backbone having from 60 to 100 mole percent of recurring pendant groups comprising an alkyl or alkoxy light-sensitive cinnamate component connected to the vinyl backbone through (a) a component which provides stiffness and rod-like character to the cinnamate component and (b) a spacer group having a backbone of from 7 to 14 atoms.
Claim 3
Dependent Claim
74 words
The polymer of claim 1 having the structure: ##STR20## wherein n represents an integer of from 3 to 10; m represents an integer of from 2 to 6; x has a value of 0 to 35 mole percent; R and R 3 each independently represents hydrogen or methyl; R 1 represents phenylene, biphenylene, terphenylene, 1,1-binaphthyl-4,4'-ylene, phenyleneoxycarbonylphenylene, azodiphenylene-N-oxide, naphthylene, stilbene-4,4'-diyl or α-azastilbene-4,4'-diyl; R 2 represents alkyl or alkoxy; and R 4 represents --O-- or --NH--.
Claim 4
Dependent Claim
58 words
The polymer of claim 2 wherein R and R 3 represents methyl; x is 0 to 5 mole percent; n is 5 to 6; m is 2 to 6; R 1 represents phenylene; and R 2 represents alkyl such as methyl, ethyl, propyl, butyl, 2-ethyl hexyl and octyl; or alkoxy such as methoxy, ethoxy, propoxy, butoxy and octyloxy.
Claim 5
Dependent Claim
11 words
The polymer of claim 2 or 3 wherein x is zero.
Claim 6
Dependent Claim
12 words
The polymer of claim 2 selected from the group consisting of ##STR21##
Claim 7
Independent Claim
105 words
A method of making a photocrosslinkable liquid crystalline polymer comprising the steps of: preparing an acrylate compound having the structure ##STR22## preparing a light-sensitive compound having the structure ##STR23## or its acid chloride; reacting the acrylate compound and the light-sensitive compound together to form a monomer having the structure ##STR24## and polymerizing the monomer to form the light-sensitive acrylate liquid crystalline polymer; wherein R represents hydrogen or methyl; R 1 represents phenylene, biphenylylene, terphenylylene, 1,1'-binaphthyl-4,4'-ylene, phenyleneoxycarbonylphenylene, azodiphenylene-N-oxide, naphthylene, stilbene-4,4'-diyl or α-azastilbene-4,4'-diyl; R 2 represents an alkyl or alkoxy group; R 4 represents --O-- or --NH--; and n represents an integer of from 3 to 10.
Claim 8
Independent Claim
105 words
A method of making a photocrosslinkable liquid crystalline polymer comprising the steps of: preparing an acrylate compound having the structure ##STR22## preparing a light-sensitive compound having the structure ##STR23## or its acid chloride; reacting the acrylate compound and the light-sensitive compound together to form a monomer having the structure ##STR24## and polymerizing the monomer to form the light-sensitive acrylate liquid crystalline polymer; wherein R represents hydrogen or methyl; R 1 represents phenylene, biphenylylene, terphenylylene, 1,1'-binaphthyl-4,4'-ylene, phenyleneoxycarbonylphenylene, azodiphenylene-N-oxide, naphthylene, stilbene-4,4'-diyl or α-azastilbene-4,4'-diyl; R 2 represents an alkyl or alkoxy group; R 4 represents --O-- or --NH--; and n represents an integer of from 3 to 10.
Claim 9
Dependent Claim
26 words
An imaging element comprising a support bearing a layer containing a sensitizer and photocrosslinkable liquid crystalline polymer according to claim 1, 2, 3, 4 or 5.
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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) | 1990-09-28 | 1991-03-30 | 1991-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-09-28 | 1995-03-30 | 1995-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-09-28 | 1999-03-30 | 1999-09-29 | $7700.00 | Window Closed / Lapsed |