Patent US3924737A successfully refreshed from Google Patents.
US3924737A
Expired / Lapsed
US
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Storage-stable multi-component thermosetting resin system
Assignee: Novartis Corp
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Filing: 1974-03-27
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Granted: 1975-12-09
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Expires: 1994-03-27
Abstract
Abstract According to this invention the individual components in the multi-component system are accommodated in a particular ratio in such a way that all substances which are not stable to atmospheric air and humidity and all substances which are not stable mechanically and any liquid substances are taken up or surrounded by a composition which is inert to air and humidity and is mechanically sufficiently stable. For example in a drageelike arrangement the multi-component thermosetting resin system consists of a moulding, possessing at least one closed cavity, of at least one solid component (A) of this system and a filing to this cavity, comprising at least one solid or liquid reaction partner (B) of the component (A) for thermosetting crosslinking.
Inventors
- 👤 Otto Ernst
- 👤 Konrad Meyerhans
- 👤 Eugen Kusenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:00
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/24; C08J3/241; B; B65; B65D; B65D81/00; B65D81/32
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
148 words
A STORAGE-STABLE MULTI-COMPONENT THEREMOSETTING RESIN SYSTEM CONSISTING OF A MOULDING, POSSESSING AT LEAT ONE CLOSED CAVITY, OF AT LEAST ONE COMPONENT (A) OF THIS MULTI-COMPONENT SYSTEM, THE COMPONENT BEING SOLID AT ROOM TEMPERATURE, INERT TO ATMOSPHERIC AIR AND FUSIBLE THROUGH RAISING THE REMPERATURE, AND A FILLING OF THIS CAVITY, COMPRISING AT LEAST ONE SOLID OR LIQUID REACTION PARYNER (B) OF THE COMPONENT (A) FOR THERMOSETTING RESIN CROSSLINKING, PREFERABLY AT TEMPERATURES ABOVE 20*C, WITH, OPTIONALLY, BOTH THE COMPONENT (A) AND THE COMPONENT (B) OR ONE OF THE TWO COMPONENTS CONTAINING CUSTOMARY ADDITIVES TO THE MIXTURE, SUCH AS FILLERS, PLASTICISERS, DYESTUFFS AND CATALYSTS, ACCELERATORS AND INHIBITORS OF THE CURING REACTION, AND THE RATIO OF THE AMOUNTS OF THE COMPONENT (A) TO COMPONENT (B) AND OPTIONALLY TO THE CATALYSTS, ACCELERATORS AND INHIBITORS IN THIS MULTI-COMPONENT SYSTEM PREFERABLY BEING THE SAME AS IN CUSTOMARY THEREMOSETTING RESIN PROCESSING OF THE PARTICULAR CORRESPONDING MIXTURES.
Claim 2
Dependent Claim
148 words
A STORAGE-STABLE MULTI-COMPONENT THEREMOSETTING RESIN SYSTEM CONSISTING OF A MOULDING, POSSESSING AT LEAT ONE CLOSED CAVITY, OF AT LEAST ONE COMPONENT (A) OF THIS MULTI-COMPONENT SYSTEM, THE COMPONENT BEING SOLID AT ROOM TEMPERATURE, INERT TO ATMOSPHERIC AIR AND FUSIBLE THROUGH RAISING THE REMPERATURE, AND A FILLING OF THIS CAVITY, COMPRISING AT LEAST ONE SOLID OR LIQUID REACTION PARYNER (B) OF THE COMPONENT (A) FOR THERMOSETTING RESIN CROSSLINKING, PREFERABLY AT TEMPERATURES ABOVE 20*C, WITH, OPTIONALLY, BOTH THE COMPONENT (A) AND THE COMPONENT (B) OR ONE OF THE TWO COMPONENTS CONTAINING CUSTOMARY ADDITIVES TO THE MIXTURE, SUCH AS FILLERS, PLASTICISERS, DYESTUFFS AND CATALYSTS, ACCELERATORS AND INHIBITORS OF THE CURING REACTION, AND THE RATIO OF THE AMOUNTS OF THE COMPONENT (A) TO COMPONENT (B) AND OPTIONALLY TO THE CATALYSTS, ACCELERATORS AND INHIBITORS IN THIS MULTI-COMPONENT SYSTEM PREFERABLY BEING THE SAME AS IN CUSTOMARY THEREMOSETTING RESIN PROCESSING OF THE PARTICULAR CORRESPONDING MIXTURES.
Claim 3
Dependent Claim
28 words
A multi-component thermosetting resin system according to claim 1, characterised in that the component (A) consists only of a reaction partner for component (B) for thermosetting resin crosslinking.
Claim 4
Dependent Claim
28 words
A multi-component thermosetting resin system according to claim 1, characterised in that the component (A) consists of several reaction partners for the component (B) for thermosetting resin crosslinking.
Claim 5
Dependent Claim
44 words
A multi-component thermosetting resin system according to claim 1, characterised in that the moulding of the component (A) possesses, in addition to the closed cavity in which the reactants (B) are accommodated, at least one further cavity in which a curing accelerator is accommodated.
Claim 6
Dependent Claim
27 words
A multi-component thermosetting resin system according to claim 1, characterised in that all components (A) and all components (B) are substances which are solid at room temperature.
Claim 7
Dependent Claim
37 words
A multi-component thermosetting resin system according to claim 5, characterised in that the solid filling of the cavity of the moulding with the components (B) possesses at least one cavity in which a curing accelerator is accommodated.
Claim 8
Dependent Claim
62 words
A multi-component thermosetting resin system according to claim 1, characterised in that the component (A) is a solid polyepoxide compound or a mixture of solid epoxide compounds and that the component (B) is a curing agent or a mixture of curing agents for the epoxide compounds and/or a catalyst or catalyst mixture for the anionic or cationic polymerisation of the epoxide compounds.
Claim 9
Dependent Claim
55 words
A multi-component thermosetting resin system according to claim 7, characterised in that the solid polyepoxide compound is a polyglycidyl compound and the component (B) is a curing agent, containing active H atoms, for the epoxide compounds, and the multi-component system contains 0.8 to 1.2 equivalents of active hydrogen atoms per 1 equivalent of epoxide groups.
Claim 10
Dependent Claim
55 words
A multi-component thermosetting resin system according to claim 7, characterised in that the solid polyepoxide compound is a polyglycidyl compound and the component (B) is an anhydride of an organic polycarboxylic acid, and the multi-component system contains 0.6 to 1.5, preferably 0.8 to 1.1, equivalents of acid anhydride groups per 1 equivalent of epoxide groups.
Claim 11
Dependent Claim
32 words
A multi-component thermosetting resin system according to claim 9, characterised in that the polyglycidyl compound is a solid bisphenol-A epoxide resin and the anhydride of an organic polycarboxylic acid is phthalic anhydride.
Claim 12
Dependent Claim
83 words
A multi-component thermosetting resin system according to claim 10, characterised in that the component (A) is a mixture of 100 parts by weight of a bisphenol-A epoxide resin having an epoxide content of about 2.2 to 2.7 epoxide equivalents/kg and up to 400 parts by weight of pulverulent silica, preferably quartz powder, and that the component (B) is a mixturE of 20 to 40 parts by weight of phthalic anhydride and up to 400 parts by weight of pulverulent silica, preferably quartz powder.
Claim 13
Dependent Claim
54 words
A multi-component thermosetting resin system according to claim 7, characterised in that the solid polyepoxide compound is a precondensate of a low molecular polyepoxide compound and a polycarboxylic acid anhydride or an aromatic polyamine with, preferably, 2 primary amino groups and the precondensate preferably has an epoxide content of 5.0 to 4.0 epoxide equivalents/kg.
Claim 14
Dependent Claim
60 words
A multi-component thermosetting resin system according to claim 1, characterised in that the component (A) is a curing agent or a mixture of curing agents for epoxide compounds and/or a catalyst or a mixture of catalysts for the anionic or cationic polymerisation of epoxide compounds and that the component (B) is a polyepoxide compound or a mixture of epoxide compounds.
Claim 15
Dependent Claim
67 words
A multi-component thermosetting resin system according to claim 1, characterised in that the component (A) is a solid unsaturated polyester or a mixture of solid unsaturated polyesters and that the component (B) is a curing agent, preferably an organic peroxide, or a mixture of curing agents for the solid unsaturated polyester, and the component (A) preferably contains a further component (Al) which can be copolymerised during curing.
Claim 16
Dependent Claim
43 words
A multi-component thermosetting resin system according to claim 1, characterised in that it has the construction of a praline or of a dragee and the casing consists of the component (A) and the filling of the component (B) or of the components (B).
Claim 17
Dependent Claim
78 words
A multi-component thermosetting resin system according to claim 1, characterised in that it consists of several superposed, preferably plane-parallel, plates or concentrically arranged tubes, with the plates or tubes consisting alternately of the component (A) and solid components (B) and the outer plates or the outer tube consisting of the component (A) which is inert to atmospheric air, and with the entire body being sealed air-tight by a layer of the component (A) which is inert to air.
Claim 18
Dependent Claim
18 words
A multi-component thermosetting resin system according to claim 1, characterised in that it is a casting resin system.
References Cited (Backward Citations)
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US2853420A
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US3041289A
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US3016134A
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US3489271A
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US3784005A
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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) | 1978-12-08 | 1979-06-09 | 1979-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-08 | 1983-06-09 | 1983-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-08 | 1987-06-09 | 1987-12-09 | $7700.00 | Window Closed / Lapsed |