US4089826A
Expired / Lapsed
US
⏱️ 0.0 years remaining
New curing agents for epoxide resins
Assignee: Novartis Corp
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Filing: 1975-10-28
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Granted: 1978-05-16
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Expires: 1995-10-28
Abstract
Abstract The agents comprise a mixture of (A) an adduct of a polyethylenepolyamine or a polypropylenepolyamine with an aliphatic or aromatic diglycidyl ether and (B) an aminoalcohol containing at least two aliphatic amino-hydrogen atoms, especially an adduct of a poly(aminoamide) with certain monoepoxides. (A) has the formula ##STR1## and (B) the formula ##STR2## where R 1 represents a C 2 -C 60 hydrocarbon radical having amino or amido nitrogen in the chain, optionally substituted by amino or alcoholic hydroxy groups, being such that (B) contains at least two aliphatic amino-nitrogen hydrogen atoms, R 2 represents ##STR3## R 3 represents the residue (mol. weight 56 to 5,000) of an at least dihydric alcohol or phenol, P is an integer of average value 1 to 1.5, q is an integer of 1 to 5, R 4 represents a hydrogen atom, C 1 -C 3 alkyl, phenyl, cresyl, chlorophenyl group, or a group R 5 OCH 2 --, R 5 represents a C 1 -C 18 residue of a monohydric aliphatic, cycloaliphatic, or araliphatic alcohol or of a monohydric phenol and R 6 is a hydrogen atom or a methyl group.
Inventors
- 👤 Noel Sydney Moss
- 👤 Michael Peter Small
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:18
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/182; C08G59/184
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
219 words
An aqueous solution comprising: (A) an adduct of the formula ##STR11## and (B) a compound of the formula ##STR12## where R 1 represents a radical containing up to 60 carbon atoms of a polyalkylene poly(aminoamide), being such that (B) contains at least two hydrogen atoms directly attached to aliphatic amino nitrogen, R 2 represents a group of formula ##STR13## where R 6 is a hydrogen atom or a methyl group, and g is an integer of from 1 to 5, R 3 represents the residue of an at least dihydric alcohol or at least dihydric phenol after removal of two hydroxyl groups, and having a molecular weight of from 56 to 5,000, especially from 150 to 500, p is an integer such that its average value is from 1 to 1.5, R 4 represents a hydrogen atom, an alkyl group of 1 to 3 carbon atoms, a phenyl group, which may be substituted by a methyl group or by a chlorine atom, or a group R.sup.5 OCH.sub.2 -- where R 5 represents the residue of a monohydric aliphatic, cycloaliphatic, or araliphatic alcohol or or a monohydric phenol after removal of the sole hydroxyl group and having from 1 to 18 carbon atoms, and (C) water, (A) and (B) together comprising from 5 to 90% by weight of the solution.
Claim 2
Dependent Claim
219 words
An aqueous solution comprising: (A) an adduct of the formula ##STR11## and (B) a compound of the formula ##STR12## where R 1 represents a radical containing up to 60 carbon atoms of a polyalkylene poly(aminoamide), being such that (B) contains at least two hydrogen atoms directly attached to aliphatic amino nitrogen, R 2 represents a group of formula ##STR13## where R 6 is a hydrogen atom or a methyl group, and g is an integer of from 1 to 5, R 3 represents the residue of an at least dihydric alcohol or at least dihydric phenol after removal of two hydroxyl groups, and having a molecular weight of from 56 to 5,000, especially from 150 to 500, p is an integer such that its average value is from 1 to 1.5, R 4 represents a hydrogen atom, an alkyl group of 1 to 3 carbon atoms, a phenyl group, which may be substituted by a methyl group or by a chlorine atom, or a group R.sup.5 OCH.sub.2 -- where R 5 represents the residue of a monohydric aliphatic, cycloaliphatic, or araliphatic alcohol or or a monohydric phenol after removal of the sole hydroxyl group and having from 1 to 18 carbon atoms, and (C) water, (A) and (B) together comprising from 5 to 90% by weight of the solution.
Claim 3
Dependent Claim
39 words
The mixture of claim 1, in which R 5 represents a saturated aliphatic hydrocarbon group, a saturated aliphatic hydrocarbon group containing chlorine, a mononuclear aryl or aralkyl hydrocarbon group, or a mononuclear aryl or aralkyl hydrocarbon group containing chlorine.
Claim 4
Dependent Claim
25 words
The mixture of claim 2, in which R 5 represents an n-butyl, iso-octyl, phenyl, o-, m-, or p-chlorophenyl, o-, m-, or p-cresyl, or benzyl group.
Claim 5
Dependent Claim
74 words
The mixture of claim 1, in which R 3 denotes a group of formula ##STR14## where R 6 is as defined in claim 1, R 7 is a chlorine or bromine atom or an alkyl group of 1 to 9 carbon atoms, r is zero, 1, or 2, and t is zero or a positive integer such that the molecular weight of the residue R 3 is at least 56 and at most 5,000.
Claim 6
Dependent Claim
22 words
The mixture of claim 1, in which the ratio of adduct (A) to compound (B) by weight is from 0:1.1 to 1:4.
Claim 7
Dependent Claim
35 words
A curable composition comprising a mixture as claimed in claim 1 and an epoxide resin having more than one terminal 1,2-epoxide group directly attached to oxygen, nitrogen, or sulphur atoms, per average in the molecule.
Claim 8
Dependent Claim
19 words
The composition of claim 6, which also contains an accelerator for curing the epoxide resin by the said mixture.
Claim 9
Dependent Claim
30 words
The composition of claim 6, in which the adduct (A) and the compound (B) together supply from 0.75 to 1.25 aliphatic amino-hydrogen equivalents per 1,2-epoxide group of the epoxide resin.
Claim 10
Dependent Claim
24 words
The composition of claim 6, in which the epoxide resin is an oil-in-water emulsion in an aqueous solution of adduct (A) and compound (B).
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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) | 1981-05-15 | 1981-11-14 | 1982-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-15 | 1985-11-14 | 1986-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-15 | 1989-11-14 | 1990-05-16 | $7700.00 | Window Closed / Lapsed |