EP0321891A2
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EP
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Bisacrylate monomers and polymers exhibiting nonlinear optical response
Assignee: CNA Holdings LLC
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Filing: 1988-12-17
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Granted: —
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Expires: 2008-12-17
Abstract
Abstract This invention provides bisacrylate monomers and thermoset polymers which exhibit nonlinear optical response. The polymers have utility as a transparent nonlinear optical component in optical light switch and light modulator devices. The bisacrylate monomers correspond to the following structure: where R is an alkyl substituent, R¹ is a divalent alkylene radical, m is an integer with a value of 0-2, n is an integer with a value of 0-1, and X is an electron-withdrawing substituent, such as -NO₂, CF₃, or -CN.
Inventors
- 👤 Ronald N. Demartino
- 👤 Anthony J. East
- 👤 Gordon W. Calundann
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 17:00
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/34; C07; C07C; C07C219/00; C07C219/02; C07C219/04; C07C219/08; C07C255/00; C07C255/49; C07C255/58; G; G02; G02F; G02F1/00; G02F1/35; G02F1/355; G02F1/361; G02F1/3611
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
45 words
A bisacrylate composition corresponding to the formula: where R is a C₁-C₄ alkyl substituent, R¹ is a divalent C₂-C₁₂ alkylene radical, m is an integer with a value of 0-2, n is an integer with a value of 0-1, and X is an electron-withdrawing substituent.
Claim 2
Dependent Claim
45 words
A bisacrylate composition corresponding to the formula: where R is a C₁-C₄ alkyl substituent, R¹ is a divalent C₂-C₁₂ alkylene radical, m is an integer with a value of 0-2, n is an integer with a value of 0-1, and X is an electron-withdrawing substituent.
Claim 3
Dependent Claim
14 words
A bisacrylate composition in accordance with claim 1 wherein R is hydrogen or methyl.
Claim 4
Dependent Claim
12 words
A bisacrylate composition in accordance with claim 1 wherein R¹ is ethylene.
Claim 5
Dependent Claim
15 words
A bisacrylate composition in accordance with claim 1 wherein x is -NO₂, -CN or -CF₃.
Claim 6
Dependent Claim
55 words
A process for producing a thermoset polymer product which comprises polymerizing a monomer corresponding to the formula: where R is a C₁-C₄ alkyl substituent, R¹ is a divalent C₂-C₁₂ alkylene radical, m is an integer with a value of 0-2, n is an integer with a value of 0-1, and X is an electron-withdrawing substituent.
Claim 7
Dependent Claim
55 words
A process for producing a thermoset polymer product which comprises polymerizing a monomer corresponding to the formula: where R is a C₁-C₄ alkyl substituent, R¹ is a divalent C₂-C₁₂ alkylene radical, m is an integer with a value of 0-2, n is an integer with a value of 0-1, and X is an electron-withdrawing substituent.
Claim 8
Dependent Claim
15 words
A process in accordance with claim 5 wherein the polymerization reaction is promoted by heating.
Claim 9
Dependent Claim
15 words
A process in accordance with claim 5 wherein the polymerization reaction is promoted by irradiation.
Claim 10
Dependent Claim
15 words
A process in accordance with claim 5 wherein the polymerization reaction is promoted by catalyst.
Claim 11
Dependent Claim
19 words
A process in accordance with claim 5 wherein the thermoset polymer product is in the form of a film.
Claim 12
Dependent Claim
22 words
A process in accordance with claim 5 wherein the thermoset polymer product is in the form of a coating on a substrate.
Claim 13
Dependent Claim
20 words
A process in accordance with claim 5 wherein the thermoset polymer product is in the form of a molded structure.
Claim 14
Dependent Claim
15 words
A process in accordance with claim 5 wherein the thermoset polymer product is optically transparent.
Claim 15
Dependent Claim
25 words
A process in accordance with claim 5 wherein the thermoset polymer product is optically transparent and exhibits second order nonlinear optical susceptibility χ (2) .
Claim 16
Dependent Claim
25 words
A process in accordance with claim 5 wherein the thermoset polymer product is optically transparent and exhibits third order nonlinear optical susceptibility χ (3) .
Claim 17
Dependent Claim
12 words
A thermoset polymer produced in accordance with the process of claim 5.
Claim 18
Dependent Claim
107 words
A process for producing a nonlinear optical medium with comprises heating and forming a melt phase medium of a bisacrylate composition corresponding to the formula: where R is a C₁-C₄ alkyl substituent, R¹ is a divalent C₂-C₁₂ alkylene radical, m is an integer with a value of 0-2, n is an integer with a value of 0-1, and X is an electron-withdrawing substituent; subjecting the melt phase to an external field to induce an orientation of aligned molecules in the medium, and forming a solid phase of the molecularly oriented medium while maintaining the external field effect to freeze the molecular orientation in the formed solid phase.
Claim 19
Dependent Claim
107 words
A process for producing a nonlinear optical medium with comprises heating and forming a melt phase medium of a bisacrylate composition corresponding to the formula: where R is a C₁-C₄ alkyl substituent, R¹ is a divalent C₂-C₁₂ alkylene radical, m is an integer with a value of 0-2, n is an integer with a value of 0-1, and X is an electron-withdrawing substituent; subjecting the melt phase to an external field to induce an orientation of aligned molecules in the medium, and forming a solid phase of the molecularly oriented medium while maintaining the external field effect to freeze the molecular orientation in the formed solid phase.
Claim 20
Dependent Claim
19 words
A process in accordance with claim 16 wherein the solid phase is formed by cooling of the melt phase.
Claim 21
Dependent Claim
22 words
A process in accordance with claim 16 wherein polymerization of the bisacrylate occurs in the melt phase after molecular orientation is induced.
Claim 22
Dependent Claim
19 words
A process in accordance with claim 16 wherein polymerization of the bisacrylate occurs in the molecularly oriented solid phase.
Claim 23
Dependent Claim
13 words
A nonlinear optical medium produced in accordance with the process of claim 16.
References Cited (Backward Citations)
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