US4421906A
Expired / Lapsed
US
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Water-based epoxy resin coating composition
Assignee: Huntsman Corp
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Filing: 1982-10-15
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Granted: 1983-12-20
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Expires: 2002-10-15
Abstract
Abstract A water based epoxy resin composition is disclosed. The epoxy resin is useful in protective coatings. The composition comprises a modified diglycidyl ether of a bisphenol A type epoxy resin with a polyamidopolyamine in aqueous medium. The diglycidyl ether of bisphenol A is modified by partial reaction with a polyoxyalkyleneamine. The polyamidopolyamine is prepared from dimer fatty acids and a polyamine.
Inventors
- 👤 Harold G. Waddill
- 👤 Kathy B. Sellstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:33
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/54; C08G59/02; C08G59/10; C09; C09D; C09D163/00
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
79 words
An epoxy resin composition comprising: (A) a diglycidyl ether comprising a condensation product of (a) epichlorohydrin with (b) a bisphenol A type resin or derivative thereof which diglycidyl ether has been partially reacted with a polyoxyalkyleneamine of molecular weight of 900 to 5000; and (B) a reactive polyamidopolyamine prepared from reaction of multi-functional carboxylic acids, esters, anhydrides and mixtures thereof with a polyfunctional amine selected from the group consisting of aliphatic, cycloaliphatic and aromatic polyfunctional amines and mixtures thereof.
Claim 2
Dependent Claim
79 words
An epoxy resin composition comprising: (A) a diglycidyl ether comprising a condensation product of (a) epichlorohydrin with (b) a bisphenol A type resin or derivative thereof which diglycidyl ether has been partially reacted with a polyoxyalkyleneamine of molecular weight of 900 to 5000; and (B) a reactive polyamidopolyamine prepared from reaction of multi-functional carboxylic acids, esters, anhydrides and mixtures thereof with a polyfunctional amine selected from the group consisting of aliphatic, cycloaliphatic and aromatic polyfunctional amines and mixtures thereof.
Claim 3
Dependent Claim
15 words
The composition of claim 1 wherein (A)(b) the bisphenol A type resin is 2,2-bis(p-hydroxy phenyl)propane.
Claim 4
Dependent Claim
22 words
The composition of claim 1 wherein the diglycidyl ether has been reacted with from 5 wt% to 50 wt% of the polyoxyalkyleneamine.
Claim 5
Dependent Claim
21 words
The composition of claim 1 wherein the diglycidyl ether has been reacted from 5 wt% to 15 wt% of the polyoxyalkyleneamine.
Claim 6
Dependent Claim
31 words
The composition of claim 1 wherein in (A)(b) the polyoxyalkyleneamine is a block copolymer of ethylene oxide and propylene oxide terminated with primary amino groups and is a monoamine or diamine.
Claim 7
Dependent Claim
42 words
The composition of claim 1 wherein in (A)(b) the polyoxyalkyleneamine is of the general formula: H 2 N[CH(CH 3 )CH 2 O] y (CH 2 CH 2 O) z [CH 2 CH(CH 3 )O] y-1 CH 2 CH(CH 3 )NH 2 .
Claim 8
Dependent Claim
51 words
The composition of claim 1 wherein in (A)(b) the polyoxyalkyleneamine is of the general formula: H 2 N[CH(CH 3 )CH 2 O] y (CH 2 CH 2 O) z [CH 2 CH(CH 3 )O] y-1 CH 2 CH(CH 3 )NH 2 and has a molecular weight of from 1000 to 2000.
Claim 9
Dependent Claim
22 words
The composition of claim 1 wherein in (A)(b) the polyoxyalkyleneamine is of the average formula: O--[(CH.sub.2 CH.sub.2 O).sub.20.9 (CH.sub.2 CH(CH.sub.3)O).sub.0.75 (CH.sub.2 CH(CH.sub.3)NH.sub.2)].sub.2.
Claim 10
Dependent Claim
53 words
The composition of claim 1 wherein in (A)(b) the polyoxyalkyleneamine is of the general formula: CH.sub.3 O(CH.sub.2 CH.sub.2 O).sub.r [CH.sub.2 CH(CH.sub.3)O].sub.s CH.sub.2 CH(CH.sub.3)NH.sub.2 wherein r is an integer of from 16 to 20 and s is an integer of from 1 to 5 and has a molecular weight of from 900 to 1100.
Claim 11
Dependent Claim
23 words
The composition of claim 1 wherein in (A)(b) the polyoxyalkyleneamine is of the average formula: CH.sub.3 O(CH.sub.2 CH.sub.2 O).sub.18.6 [CH.sub.2 CH(CH.sub.3)O].sub.1.6 CH.sub.2 CH(CH.sub.3)NH.sub.2.
Claim 12
Dependent Claim
12 words
The composition of claim 1 wherein (A)(b) the polyoxyalkyleneamine is a polyoxypropyleneamine.
Claim 13
Dependent Claim
31 words
The composition of claim 1 wherein in (A)(b) the polyoxyalkyleneamine is of the average formula: H 2 NCH(CH 3 )CH 2 --[OCH 2 CH(CH 3 )--] 33 .1 NH 2 .
Claim 14
Dependent Claim
28 words
The composition of claim 1 wherein in (B) the carboxylic acids, esters or anhydrides have from 18 to 54 carbon atoms and from 2 to 3 carboxyl groups.
Claim 15
Dependent Claim
22 words
The composition of claim 1 wherein in (B) the polyamidopolyamine is the condensation product of a dimer fatty acid and diethylene triamine.
Claim 16
Dependent Claim
26 words
The composition of claim 1 wherein in (B) the polyamidopolyamine is the condensation product of one mole of dimer fatty acid and two moles of triethylenetetramine.
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) | 1986-12-19 | 1987-06-20 | 1987-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-19 | 1991-06-20 | 1991-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-19 | 1995-06-20 | 1995-12-20 | $7700.00 | Window Closed / Lapsed |