US4297255A
Expired / Lapsed
US
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Adduct and its use
Assignee: BASF SE
•
Filing: 1980-03-24
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Granted: 1981-10-27
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Expires: 2000-03-24
Abstract
Abstract Adducts obtained by reacting an epoxide compound with guanidine or a guanidine derivative, using not less than 1 mole of guanidine or guanidine derivative per epoxide equivalent of the epoxide compound; the adducts may or may not be partially or completely neutralized by adding acid, and may additionally contain blocked isocyanate groups. The novel adducts may be used, in combination with a completely blocked polyisocyanate, aminoplast resin and/or phenoplast resin, as binders in coating agents, and for the cathodic electrocoating of metal articles.
Inventors
- 👤 Hans-Uwe Schenck
- 👤 Erich Gulbins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:48
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/44; C09D5/4419; C09D5/443; C09D5/4434; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/0804; C08G18/0809; C08G18/28; C08G18/40; C08G18/64; C08G18/6415; C08G18/643; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G59/4014; C08G59/4021; C09D163/00; Y; Y10; Y10S; Y10S524/00; Y10S524/901
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
87 words
An adduct which has been obtained by reacting (a) an epoxide compound selected from the group consisting of glycidyl ether of a polyhydric alcohol or phenol, epoxidized oils and reaction products of aliphatic or aromatic polyepoxy resins with polyols or polyphenols with (b) guanidine or a guanidine derivative using not less than 1 mole of guanidine or alkylguanidine or a guanidinium salt (b) per epoxide equivalent of the epoxide compound (a), and which may or may not have been partially or completely neutralized by adding an acid.
Claim 2
Dependent Claim
87 words
An adduct which has been obtained by reacting (a) an epoxide compound selected from the group consisting of glycidyl ether of a polyhydric alcohol or phenol, epoxidized oils and reaction products of aliphatic or aromatic polyepoxy resins with polyols or polyphenols with (b) guanidine or a guanidine derivative using not less than 1 mole of guanidine or alkylguanidine or a guanidinium salt (b) per epoxide equivalent of the epoxide compound (a), and which may or may not have been partially or completely neutralized by adding an acid.
Claim 3
Dependent Claim
11 words
The adduct of claim 1, which additionally contains blocked isocyanate groups.
Claim 4
Dependent Claim
24 words
The adduct of claim 1, wherein the epoxide compound used is a glycidyl ether of a polyhydric alcohol or phenol, or an epoxidized oil.
Claim 5
Dependent Claim
24 words
The adduct of claim 2, wherein the epoxide compound used is a glycidyl ether of a polyhydric alcohol or phenol, or an epoxidized oil.
Claim 6
Dependent Claim
18 words
The adduct of claim 1, wherein an alkylguanidine or a guanidinium salt is used as the guanidine derivative.
Claim 7
Dependent Claim
18 words
The adduct of claim 2, wherein an alkylguanidine or a guanidinium salt is used as the guanidine derivative.
Claim 8
Dependent Claim
20 words
The adduct of claim 1, which contains from 0.01 to 10 milliequivalents of guanidine groups per gram of resin solids.
Claim 9
Dependent Claim
20 words
The adduct of claim 2, which contains from 0.01 to 10 milliequivalents of guanidine groups per gram of resin solids.
Claim 10
Dependent Claim
24 words
An aqueous coating dispersion or solution which comprises: water, the adduct of claim 1 and a completely blocked polyisocyanate, aminoplast resin and/or phenoplast resin.
Claim 11
Dependent Claim
24 words
An aqueous coating dispersion or solution which comprises: water, the adduct of claim 2 and a completely blocked polyisocyanate, aminoplast resin and/or phenoplast resin.
Claim 12
Dependent Claim
80 words
A method of cathodic electrocoating of metal articles which comprises: immersing an anode and the metal article to be coated in an electrocoating bath comprising the dispersion or solution of claim 9, the pH of said bath being from 6 to 10, applying a DC voltage between the immersed anode and the article to be coated, which article is wired as the cathode, and coating the metal until a layer of from 10 to 30 μm thickness has been formed.
Claim 13
Dependent Claim
80 words
A method of cathodic electrocoating of metal articles which comprises: immersing an anode and the metal article to be coated in an electrocoating bath comprising the dispersion or solution of claim 10, the pH of said bath being from 6 to 10, applying a DC voltage between the immersed anode and the article to be coated, which article is wired as the cathode, and coating the metal until a layer of from 10 to 30 μm thickness has been formed.
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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) | 1984-10-26 | 1985-04-27 | 1985-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-26 | 1989-04-27 | 1989-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-26 | 1993-04-27 | 1993-10-27 | $7700.00 | Window Closed / Lapsed |