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US4371685A
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Radiation-reactive precursor stages of highly heat-resistant polymers
Assignee: Siemens AG
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Filing: 1981-06-04
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Granted: 1983-02-01
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Expires: 2001-06-04
Abstract
Abstract The invention relates to oligomeric and/or polymeric radiation-reactive precursor stages of polymers on the basis of heterocycles and has the objective to make available radiation-reactive precursor stages of this kind in which the problems arising due to the need of using organic solvents are eliminated. For this purpose, the invention provides addition products of cyclic carboxylic-acid anhydrides with hydroxyl group-containing compounds, where the hydroxyl group-containing compounds represent addition products of olefinically unsaturated monoepoxides on carboxyl group-containing prepolymers of polyimides, polyisoindoloquinazoline diones, polyoxazine diones and polyquinazoline diones or on amino group-containing prepolymers of polyimidazoles and polyimidazopyrrolones or on hydroxyl group-containing prepolymers of polyoxazoles. The radiation-reactive precursor stages according to the invention are suited, for example, for the manufacture of highly heat-resistant relief structues.
Inventors
- 👤 Hellmut Ahne
- 👤 Eberhard Kuhn
- 👤 Roland Rubner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:27
CPC Classifications
C; C08; C08L; C08L79/00; C08L79/04; C08L79/08; C08G; C08G73/00; C08G73/06; C08G73/0622; C08G73/0633; C08G73/0638; C08G73/0644; C08G73/0666; C08G73/0672; C08G73/0683; C08G73/0694; G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; G03F7/0387
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
208 words
A radiation-reactive oligomeric and/or polymeric compound which is a precursor of a heterocyclic-based polymer and which is capable of being converted by radiation to said heterocyclic-based polymer, said oligomeric and/or polymeric compound consisting of the addition product of (a) a cyclic carboxylic acid anhydride and (b) a hydroxyl group-containing compound, said hydroxyl group-containing compound itself being an oligomeric and/or polymeric radiation-reactive precursor and consisting of an addition product of (a) an olefinically unsaturated monoepoxide and (b) a member selected from the group consisting of: (1) a carboxyl group-containing polyaddition product of (i) an aromatic and/or heterocyclic tetracarboxylic acid dianhydride and (ii) a diamino compound or a diamino compound with at least one ortho-position amido group; (2) a carboxyl group-containing polyaddition product of (i) a member selected from an aromatic and/or heterocyclic dihydroxydicarboxylic acid or an aromatic and/or heterocyclic diaminodicarboxylic acid and (ii) a diisocyanate; (3) an amino group-containing polycondensation product of (i) an aromatic and/or heterocyclic tetraamino compound and (ii) a dicarboxylic acid chloride ester; (4) an amino group-containing polyaddition product of (i) an aromatic and/or heterocyclic tetraamino compound and (ii) a tetracarboxylic acid dianhydride; and (5) a hydroxyl group-containing polycondensation product of (i) an aromatic and/or heterocyclic dihydroxydiamino compound and (ii) a dicarboxylic acid chloride or ester.
Claim 2
Dependent Claim
208 words
A radiation-reactive oligomeric and/or polymeric compound which is a precursor of a heterocyclic-based polymer and which is capable of being converted by radiation to said heterocyclic-based polymer, said oligomeric and/or polymeric compound consisting of the addition product of (a) a cyclic carboxylic acid anhydride and (b) a hydroxyl group-containing compound, said hydroxyl group-containing compound itself being an oligomeric and/or polymeric radiation-reactive precursor and consisting of an addition product of (a) an olefinically unsaturated monoepoxide and (b) a member selected from the group consisting of: (1) a carboxyl group-containing polyaddition product of (i) an aromatic and/or heterocyclic tetracarboxylic acid dianhydride and (ii) a diamino compound or a diamino compound with at least one ortho-position amido group; (2) a carboxyl group-containing polyaddition product of (i) a member selected from an aromatic and/or heterocyclic dihydroxydicarboxylic acid or an aromatic and/or heterocyclic diaminodicarboxylic acid and (ii) a diisocyanate; (3) an amino group-containing polycondensation product of (i) an aromatic and/or heterocyclic tetraamino compound and (ii) a dicarboxylic acid chloride ester; (4) an amino group-containing polyaddition product of (i) an aromatic and/or heterocyclic tetraamino compound and (ii) a tetracarboxylic acid dianhydride; and (5) a hydroxyl group-containing polycondensation product of (i) an aromatic and/or heterocyclic dihydroxydiamino compound and (ii) a dicarboxylic acid chloride or ester.
Claim 3
Dependent Claim
21 words
The radiation-reactive precursor according to claim 1 wherein the cyclic carboxylic-acid anhydride is selected from maleic acid anhydride and itaconic-acid anhydride.
Claim 4
Dependent Claim
16 words
The radiation-reactive precursor according to claim 1 wherein the hydroxyl group-containing compound is a polyimide precursor.
Claim 5
Dependent Claim
27 words
The radiation-reactive precursor according to claim 3 wherein the polyimide precursor is an addition product of glycidylmethacrylate on the polyaddition product of pyromellithic-acid dianhydride and 4,4'-diaminodiphenyl ether.
Claim 6
Dependent Claim
29 words
The radiation-reactive precursor according to claim 3 wherein the polyimide precursor is an addition product of glycidyl acrylate on the polyaddition product of benzophenone tetracarboxylic-acid dianhydride and 4,4'-diaminodiphenyl ether.
Claim 7
Dependent Claim
17 words
The radiation-reactive precursor according to claim 1 wherein the hydroxyl group-containing compound is a polyisoindoloquinazoline dione precursor.
Claim 8
Dependent Claim
28 words
The radiation-reactive precursor according to claim 6 wherein the polyisoindoloquinazoline dione precursor is an addition product of glycidylmethacrylate on the polyaddition product of pyromellithic-acid dianhydride and 4,4'-diaminodiphenyl-3,3'-dicarboxylic-acid amide.
Claim 9
Dependent Claim
17 words
The radiation-reactive precursor according to claim 1 wherein the hydroxyl group-containing compound is a polyoxazine dione precursor.
Claim 10
Dependent Claim
28 words
The radiation-reactive precursor according to claim 8 wherein the polyoxazine dione precursor is an addition product of glycidylacrylate on the polyaddition product of 4,4'-dihydroxydiphenylmethane-3,3'-dicarboxylic acid and 4,4'-diphenylmethane diisocyanate.
Claim 11
Dependent Claim
17 words
The radiation-reactive precursor according to claim 1 wherein the hydroxyl group-containing compound is a polyquinazoline dione precursor.
Claim 12
Dependent Claim
28 words
The radiation-reactive precursor according to claim 10 wherein the polyquinazoline dione precursor is an addition product of glycidylmethacrylate on the polyaddition product of 4,4'-diaminodiphenylmethane-3,3'-dicarboxylic acid and 4,4'-diphenylmethane diisocyanate.
Claim 13
Dependent Claim
16 words
The radiation-reactive precursor according to claim 1 wherein the hydroxyl group-containing compound is a polyimidazole precursor.
Claim 14
Dependent Claim
30 words
The radiation-reactive precursor according to claim 12 wherein the polyimidazole precursor is an addition product of glycidylmethacrylate on the polycondensation product of 3,3'-diaminobenzidine and isophthalic-acid dichloride or isophthalic-acid dimethyl ester.
Claim 15
Dependent Claim
17 words
The radiation-reactive precursor according to claim 1 wherein the hydroxyl group-containing compound is a polyimidazo pyrrolone precursor.
Claim 16
Dependent Claim
26 words
The radiation-reactive precursor according to claim 14 wherein the polyimidazopyrrolone precursor is an addition product of glycidylmethacrylate on the polyaddition product of 3,3'-diaminobenzidine and pyromellithic-acid dianhydride.
Claim 17
Dependent Claim
16 words
The radiation-reactive precursor according to claim 1 wherein the hydroxyl group-containing compound is a polyoxazole precursor.
Claim 18
Dependent Claim
30 words
The radiation-reactive precursor according to claim 16 wherein the polyoxazole precursor is an addition product of glycidylmethacrylate on the polycondensation product of 3,3'-dihydroxybenzidine and isophthalic-acid dichloride or isophthalic-acid dimethyl ester.
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) | 1986-01-31 | 1986-08-02 | 1987-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-31 | 1990-08-02 | 1991-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-31 | 1994-08-02 | 1995-02-01 | $7700.00 | Window Closed / Lapsed |