US4385165A
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Polyimide, polyisoindoloquinazoline dione, polyoxazine dione and polyquinazoline dione precursor stages and the manufacture
Assignee: Siemens AG
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Filing: 1980-08-19
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Granted: 1983-05-24
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Expires: 2000-08-19
Abstract
Abstract The present invention relates to oligomeric and/or polymeric radiation-reactive precursor stages of polyimides, polyisoindoloquinazoline diones, polyoxazine diones and polyquinazoline diones as well as to a method for the preparation of these radiation-reactive precursor stages. The invention provides addition products of olefinically unsaturated monoepoxides on carboxyl group-containing polyaddition products of aromatic and/or heterocyclic tetracarboxylic-acid dianhydrides and diamino compounds or diamino compounds with at least one ortho-position amido group, or on carboxyl group-containing polyaddition products of aromatic and/or heterocyclic dihdyroxy dicarboxylic acids or corresponding diaminodicarboxylic acids and diisocyanates. The radiation-reactive precursor stages according to the invention are suitable, for example, for the manufacture of highly heat-resistant relief structures.
Inventors
- 👤 Hellmut Ahne
- 👤 Eberhard Kuhn
- 👤 Roland Rubner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:52
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; G03F7/0387; C; C08; C08L; C08L79/00; C08L79/04
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
103 words
An oligomeric and/or polymeric radiation-reactive precursor stage of polyimides, polyisoindoloquinazoline diones, polyoxazine diones and polyquinazoline diones, comprising an addition product of an olefinically unsaturated monoepoxide on a product selected from the group consisting of: (a) a carboxyl-group-containing polyaddition product of an aromatic and/or heterocyclic tetracarboxylic acid dianhydride and a compound selected from the group consisting of a diamino compound and a diamino compound having at least one ortho-position amido group; and (b) a carboxyl-group-containing polyaddition product of (1) a compound selected from the group consisting of an aromatic and/or heterocyclic dihydroxy dicarboxylic acid and a corresponding diamino dicarboxylic acid, and (2) a diisocyanate.
Claim 2
Dependent Claim
103 words
An oligomeric and/or polymeric radiation-reactive precursor stage of polyimides, polyisoindoloquinazoline diones, polyoxazine diones and polyquinazoline diones, comprising an addition product of an olefinically unsaturated monoepoxide on a product selected from the group consisting of: (a) a carboxyl-group-containing polyaddition product of an aromatic and/or heterocyclic tetracarboxylic acid dianhydride and a compound selected from the group consisting of a diamino compound and a diamino compound having at least one ortho-position amido group; and (b) a carboxyl-group-containing polyaddition product of (1) a compound selected from the group consisting of an aromatic and/or heterocyclic dihydroxy dicarboxylic acid and a corresponding diamino dicarboxylic acid, and (2) a diisocyanate.
Claim 3
Dependent Claim
22 words
The radiation-reactive precursor stage according to claim 1, wherein said unsaturated monoepoxide comprises a member selected from glycidyl acrylate and glycidyl methacrylate.
Claim 4
Dependent Claim
26 words
The radiation-reactive precursor stage according to claim 1 wherein said tetracarboxylic-acid dianhydride comprises the anhydride of a member selected from pyromellithic acid and benzophenone tetracarboxylic acid.
Claim 5
Dependent Claim
23 words
The radiation-reactive precursor stage according to claim 1 wherein said diamino compound comprises a member selected from 4,4'-diaminodiphenyl ether and 4,4'-diaminodiphenyl-3,3'-dicarboxylic acid amide.
Claim 6
Dependent Claim
16 words
The radiation-reactive precursor stage according to claim 1 wherein said dihydroxy dicarboxylic acid comprises 4,4'-dihydroxydiphenylmethane-3,3'-dicarboxylic acid.
Claim 7
Dependent Claim
16 words
The radiation-reactive precursor stage according to claim 1 wherein said diamino dicarboxylic acid comprises 4,4'-diaminophenyl-3,3'-dicarboxylic acid.
Claim 8
Dependent Claim
14 words
The radiation-reactive precursor stage according to claim 1 wherein said diisocyanate comprises 4,4'-diphenylmethane diisocyanate.
Claim 9
Independent Claim
72 words
A method for the preparation of radiation-reactive precursor stages comprising reacting an aromatic and/or heterocyclic tetracarboxylic acid dianhydride with a member selected from the group consisting of a diamino compound and a diamino compound having at least one ortho-position amido group to form a carboxyl-group-containing reaction product; and reacting said reaction product with an olefinically unsaturated monoepoxide at a temperature from about room temperature to about 100° C. in an organic solvent.
Claim 10
Independent Claim
72 words
A method for the preparation of radiation-reactive precursor stages comprising reacting an aromatic and/or heterocyclic tetracarboxylic acid dianhydride with a member selected from the group consisting of a diamino compound and a diamino compound having at least one ortho-position amido group to form a carboxyl-group-containing reaction product; and reacting said reaction product with an olefinically unsaturated monoepoxide at a temperature from about room temperature to about 100° C. in an organic solvent.
Claim 11
Independent Claim
66 words
A method for the preparation of radiation-reactive precursor stages, comprising reacting a member selected from the group consisting of an aromatic and/or heterocyclic dihydroxy dicarboxylic acid and a corresponding diamino dicarboxylic acid with a diisocyanate to form a carboxyl-group-containing reaction product; and reacting said reaction product with an olefinically unsaturated monoepoxide at a temperature from about room temperature to about 100° C. in an organic solvent.
Claim 12
Independent Claim
66 words
A method for the preparation of radiation-reactive precursor stages, comprising reacting a member selected from the group consisting of an aromatic and/or heterocyclic dihydroxy dicarboxylic acid and a corresponding diamino dicarboxylic acid with a diisocyanate to form a carboxyl-group-containing reaction product; and reacting said reaction product with an olefinically unsaturated monoepoxide at a temperature from about room temperature to about 100° C. in an organic solvent.
Claim 13
Dependent Claim
25 words
The method according to claim 8 wherein the reaction of said reaction product with said monoepoxide is conducted in the presence of an aminic catalyst.
Claim 14
Dependent Claim
25 words
The method according to claim 9 wherein the reaction of said reaction product with said monoepoxide is conducted in the presence of an aminic catalyst.
Claim 15
Dependent Claim
41 words
The method according to claim 8 wherein said tetracarboxylic-acid dianhydride is used in excess in the reaction with said diamino compound, and the reaction product obtained is brought to reaction with hydroxyethyl-acrylate and/or -methacrylate prior to the reaction with said monoepoxide.
Claim 16
Dependent Claim
20 words
A plastic coating for the optical fibers of a light waveguide comprised of the polymer precursor stage of claim 1.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-05-23 | 1986-11-22 | 1987-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-23 | 1990-11-22 | 1991-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-23 | 1994-11-22 | 1995-05-24 | $7700.00 | Window Closed / Lapsed |