Patent US1323404A successfully refreshed from Google Patents.
Patent US4711935A successfully refreshed from Google Patents.
US4711935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-crosslinking cationic paint binders containing urea and urethane groups and process of manufacture
Assignee: Allnex Austria GmbH
•
Filing: 1986-07-22
•
Granted: 1987-12-08
•
Expires: 2006-07-22
Abstract
Abstract A process for producing self-crosslinking cationic paint binders, water-dilutable upon protonation, on the basis of urea and urethane group carrying reaction products of modified phenols and monoepoxy compounds as well as with the binders produced according to this process and their use in stoving paints, particularly electrodeposition paints are described. The process is characterized in that a substituted urea-phenol-formaldehyde condensate obtained through reaction of an aminoalkylation product of a phenol, carrying an average of at least one secondary amino group with a semi-blocked diisocyanate, or a substituted urea prepared from a semi-blocked diisocyanate and an amine and further reacted with formaldehyde and a phenol, is reacted with a monoepoxy compound, the free aliphatic hydroxy groups of the reaction product being reacted in a further reaction step with di- or polyisocyanates. The paints formulated with these products, at stoving temperatures of from 150° to 170° C., give films with excellent corrosion resistance and adhesion.
Inventors
- 👤 Johann Gmoser
- 👤 Willibald Paar
- 👤 Michael Honel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:32
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/40; C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/0804; C08G18/0809; C08G18/0814; C08G18/28; C08G18/40; C08G18/54; C08G18/544; C08G18/70; C08G18/72; C08G18/80; C08G18/8061; C08G18/8064; C08G18/83; C08G18/831; C08G59/00; C08G59/02; C08G59/12; C08G59/14; C08G59/1433; C08G59/18; C08G59/40; C08G59/62; C08G59/621; C08G59/623; C09; C09D; C09D163/00; C09D5/00; C09D5/44; C09D5/4419; Y; Y10; Y10S; Y10S524/00; Y10S524/901
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
194 words
Self-crosslinking cationic paint binders, water-dilutable on protonation, comprising the reaction product of components (A), (B), and (C) wherein component (A) is (A-1) an aminoalkylation product carrying an average of at least one NH-group per molecule, of a phenol compound, an amino compound selected from the group consisting of a primary alkylamine, a primary alkanolamine, an alkylenediamine and mixtures thereof and formaldehyde subsequently reacted with a semi-blocked diisocyanate or (A-2) a semi-blocked diisocyanate reacted with an amino compound selected from the group consisting of a primary alkylamine, a primary alkanolamine, and an alkylenediamine, and the resulting substituted urea thereafter reacted with formaldehyde and a phenol compound, component (B) is a mono-1,2-epoxy compound having an epoxy equivalent weight of from about 50 to 2000, and component (C) is a polyisocyanate, wherein from about 50 to 100% of the phenolic hydroxy groups of component (A) are reacted with component (B) and 50 to 100 mole-% of the aliphatic hydroxy groups set free through the reaction with the mono-1,2-epoxy compound of component (B) are reacted with equivalent quantities of the polyisocyanate of component (C) to provide a product having an amine value of at least 30 mg KOH/g.
Claim 2
Dependent Claim
194 words
Self-crosslinking cationic paint binders, water-dilutable on protonation, comprising the reaction product of components (A), (B), and (C) wherein component (A) is (A-1) an aminoalkylation product carrying an average of at least one NH-group per molecule, of a phenol compound, an amino compound selected from the group consisting of a primary alkylamine, a primary alkanolamine, an alkylenediamine and mixtures thereof and formaldehyde subsequently reacted with a semi-blocked diisocyanate or (A-2) a semi-blocked diisocyanate reacted with an amino compound selected from the group consisting of a primary alkylamine, a primary alkanolamine, and an alkylenediamine, and the resulting substituted urea thereafter reacted with formaldehyde and a phenol compound, component (B) is a mono-1,2-epoxy compound having an epoxy equivalent weight of from about 50 to 2000, and component (C) is a polyisocyanate, wherein from about 50 to 100% of the phenolic hydroxy groups of component (A) are reacted with component (B) and 50 to 100 mole-% of the aliphatic hydroxy groups set free through the reaction with the mono-1,2-epoxy compound of component (B) are reacted with equivalent quantities of the polyisocyanate of component (C) to provide a product having an amine value of at least 30 mg KOH/g.
Claim 3
Dependent Claim
16 words
The binder according to claim 1 wherein in component (A) the phenol compound is a monoalkylphenol.
Claim 4
Dependent Claim
16 words
The binder according to claim 1 wherein in component (A) the phenol compound is a monoarylphenol.
Claim 5
Dependent Claim
15 words
The binder according to claim 1 wherein in component (A) the phenol compound is aralkylphenol.
Claim 6
Dependent Claim
14 words
The binder according to claim 4 wherein the aralkylphenol contains two phenolic hydroxy groups.
Claim 7
Dependent Claim
21 words
The binder according to claim 1 wherein in component (A) the semi-blocked diisocyanate is toluylene diisocyanate blocked with an aliphatic monoalcohol.
Claim 8
Dependent Claim
22 words
The binder according to claim 6 wherein the aliphatic monoalcohols will split-off at a temperature of from about 150° to 170° C.
Claim 9
Dependent Claim
21 words
The binder according to claim 1 wherein the amines of component (A) are diprimary alkylamines used in combination with primary-tertiary alkylamines.
Claim 10
Dependent Claim
51 words
The binder according to claim 1 wherein the amine value of at least 30 mg KOH/g stems from tertiary amino groups which are introduced by a diamine carrying tertiary amino groups used for the production of component (A) or an amine used for the semi-blocking of the diisocyanates of component (A).
References Cited (Backward Citations)
CA1021493A
Cited
US3994989A
Cited
US4086292A
Cited
CA1074489A
Cited
US4134932A
Cited
US4393179A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-12-07 | 1991-06-08 | 1991-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-07 | 1995-06-08 | 1995-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-07 | 1999-06-08 | 1999-12-08 | $7700.00 | Window Closed / Lapsed |