Patent US4296231A successfully refreshed from Google Patents.
US4296231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curable epoxide resin mixtures
Assignee: BASF Corp
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Filing: 1980-05-01
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Granted: 1981-10-20
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Expires: 2000-05-01
Abstract
Abstract The use of compounds of the formula ##STR1## in which m is a number from 3 to 10, X is a grouping of the formula in which R is an alkyl having 4 to 10 C atoms or a phenyl which is unsubstituted or substituted by chlorine, bromine or alkyl or alkoxy each having 1 to 3 C atoms, and Y is a hydrogen atom or has the meaning defined for X, which are obtained by adding on 1 or 2 mols of an aliphatic or aromatic monoglycidyl ether to 1 mol of a dimethylaminoalkylamine, as a curing catalyst for epoxide resins or as a curing accelerator in curable mixtures consisting of epoxide resins and polycarboxylic anhydrides or polyhydric phenols.
Inventors
- 👤 Ferdinand Gutekunst
- 👤 Rolf Schmid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:47
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/68; C08G59/686; C08G59/182; C08G59/184; C08G59/40; C08G59/62; C08G59/64
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
140 words
A curable mixture comprising a polyepoxide compound having on average more than one epoxide group in the molecule, and optionally a polycarboxylic acid, an anhydride or a polyhydric phenol as the curing agent, the said mixture additionally containing a compound of the formula I ##STR16## in which m is a number from 3 to 10, X is a group of the formula ##STR17## in which R is an alkyl having 4 to 10 C atoms or a phenyl which is unsubstituted or substituted by chlorine, bromine or alkyl or alkoxy each having 1 to 3 C atoms, and Y is a hydrogen atom or has the meaning defined for X, as the curing catalyst or as the curing accelerator for curing the epoxide compound with di- or poly-carboxylic acids or anhydrides of di- or poly-carboxylic acids or with polyhydric phenols.
Claim 2
Dependent Claim
140 words
A curable mixture comprising a polyepoxide compound having on average more than one epoxide group in the molecule, and optionally a polycarboxylic acid, an anhydride or a polyhydric phenol as the curing agent, the said mixture additionally containing a compound of the formula I ##STR16## in which m is a number from 3 to 10, X is a group of the formula ##STR17## in which R is an alkyl having 4 to 10 C atoms or a phenyl which is unsubstituted or substituted by chlorine, bromine or alkyl or alkoxy each having 1 to 3 C atoms, and Y is a hydrogen atom or has the meaning defined for X, as the curing catalyst or as the curing accelerator for curing the epoxide compound with di- or poly-carboxylic acids or anhydrides of di- or poly-carboxylic acids or with polyhydric phenols.
Claim 3
Dependent Claim
32 words
A mixture according to claim 1, comprising a compound of the formula I as the curing catalyst or curing accelerator for curing the epoxide compound with polycarboxylic acid anhydrides or polyhydric phenols.
Claim 4
Dependent Claim
37 words
A mixture according to claim 1, comprising a compound of the formula I in which m is 3, R is butyl, phenyl or tolyl and Y is a hydrogen atom or has the meaning defined for X.
Claim 5
Dependent Claim
27 words
A mixture according to claim 1, comprising a compound of the formula I in which m is 3, R is isooctyl and Y is a hydrogen atom.
Claim 6
Dependent Claim
36 words
A mixture according to claim 1, which comprises an epoxide compound and a compound of the formula I, the proportion of the compound of the formula I in the mixture being 2 to 40% by weight.
Claim 7
Dependent Claim
22 words
A mixture according to claim 1, wherein the proportion of the compound of the formula I is 3 to 16% by weight.
Claim 8
Dependent Claim
47 words
A mixture according to claim 1, which comprises an epoxide compound, a polycarboxylic anhydride or a polyhydric phenol and a compound of the formula I, the proportion of the compound of the formula I being 0.1 to 10% by weight, based on the epoxide resin/curing agent mixture.
Claim 9
Dependent Claim
22 words
A mixture according to claim 1, wherein the proportion of the compound of the formula I is 0.2 to 2% by weight.
Claim 10
Dependent Claim
66 words
A compound of the formula I according to claim 1, in which m is a number from 3 to 10 and X and Y are each a group of the formula ##STR18## in which R is an alkyl having 4 to 10 C atoms or a phenyl which is unsubstituted or substituted by chlorine, bromine or alkyl or alkoxy each having 1 to 3 C atoms.
Claim 11
Dependent Claim
44 words
A compound of the formula I according to claim 1, in which m is the number 3 and X and Y are each a grouping of the formula ##STR19## in which the R's independently of one another are each a butyl, phenyl or tolyl.
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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) | 1984-10-19 | 1985-04-20 | 1985-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-19 | 1989-04-20 | 1989-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-19 | 1993-04-20 | 1993-10-20 | $7700.00 | Window Closed / Lapsed |