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US4308085A
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Process for the preparation of high molecular thermoplastic epoxide-amine-polyadducts
Assignee: Jenoptik AG
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Filing: 1980-07-28
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Granted: 1981-12-29
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Expires: 2000-07-28
Abstract
Abstract High molecular linear, thermoplastic, epoxide-amine-adducts containing the structural segment ##STR1## are prepared by a solvent-free reaction of equivalent amounts at 20 to 200° C. of N,N'-bis(aralkyl) diamines (for example, N,N'-dibenzyl-ethylenediamine, N,N'-dibenzyl-p-xylylenediamine, N,N'-dibenzyl-4,4'-diamino-diphenylmethane, N,N'-dibenzyl-3,6-dioxa-octanediamine-1,8) with diepoxides (for example, 2,2-bis(4-glycidyloxyphenyl)propane). The polyadducts are soluble and may be processed by thermoplastic methods. The polyaddition process may be conducted for the forming of shaped objects in a form-shaping vessel, for the production of coatings directly upon the surface to be coated and also in the presence of inserted materials and has, due to these characteristics, the nature of a casting system.
Inventors
- 👤 Hans-Heinrich Horhold
- 👤 Dieter Klemm
- 👤 Klaus Bellstedt
- 👤 Ludwig Haase
- 👤 Joachim Klee
- 👤 Klaus Schubert
- 👤 Helmut Wachs
- 👤 Rolf Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:04
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
75 words
Process for the preparation of high molecular thermoplastic epoxide-amine-polyadducts by the reaction of diepoxides with disecondary diamines in a molar ratio of about 1:1, wherein a diepoxide is reacted with a disecondary diamine, having the structure ##STR9## where R denotes an aralkyl radical, R' denotes a difunctional radical selected from the group consisting of alkylenes, cycloalkylenes, arylenes, difunctional heterocycles and alpylene, cycloalpylene, and arylene radicals interrupted by heteroatoms, in the absence of solvents or diluents.
Claim 2
Dependent Claim
75 words
Process for the preparation of high molecular thermoplastic epoxide-amine-polyadducts by the reaction of diepoxides with disecondary diamines in a molar ratio of about 1:1, wherein a diepoxide is reacted with a disecondary diamine, having the structure ##STR9## where R denotes an aralkyl radical, R' denotes a difunctional radical selected from the group consisting of alkylenes, cycloalkylenes, arylenes, difunctional heterocycles and alpylene, cycloalpylene, and arylene radicals interrupted by heteroatoms, in the absence of solvents or diluents.
Claim 3
Dependent Claim
15 words
A process according to claim 1, wherein said molar ratio is between 0.95:1.0 and 1.0:1.05.
Claim 4
Dependent Claim
18 words
A process according to claim 1, wherein mixtures of diamines and mixtures of diepoxides are caused to interact.
Claim 5
Dependent Claim
21 words
A process according to claim 1, wherein the reaction is conducted in a form-shaping mold thereby to prepare a shaped object.
Claim 6
Dependent Claim
23 words
A process according to claim 1, wherein the reaction is conducted on a surface to be coated thereby to form a surface coating.
Claim 7
Dependent Claim
25 words
A process according to claim 1, wherein the reaction is conducted between parts to be bonded thereby to form an adhesive bond between the parts.
Claim 8
Dependent Claim
31 words
A process according to claim 1, wherein the reaction is conducted between parts to be sealed together by a gasket thereby to form the gasket and seal the parts together therewith.
Claim 9
Dependent Claim
11 words
A process according to claim 1, wherein said diepoxide is 2,2-bis(4-glycidyloxyphenyl)propane.
Claim 10
Dependent Claim
20 words
A process according to claim 1, wherein said heteroatoms are selected from the group consisting of oxygen, sulfur and nitrogen.
Claim 11
Dependent Claim
23 words
A process according to claim 1, wherein said diamine is selected from the group consisting of N,N-dibenzylethylenediamine, N,N'-dibenzylhexamethylenediamine-1,6, N,N'-dibenzyl-3,6-dioxaoctanediamine, N,N'-dibenzyl-p-xylylenediamine, 4,4'-bis(N-benzylamino)diphenylmethane and N,N'-dibenzyl-2,2,4(2,4,4)-trimethylhexamethylenediamine-1,6.
Claim 12
Dependent Claim
21 words
A process according to claim 1, wherein the reaction is continued until the molecular weight of the product is above 8000.
Claim 13
Dependent Claim
13 words
A process according to claim 1, wherein the reaction temperature is 20°-200° C.
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) | 1984-12-28 | 1985-06-29 | 1985-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-28 | 1989-06-29 | 1989-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-28 | 1993-06-29 | 1993-12-29 | $7700.00 | Window Closed / Lapsed |