US4576979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-curable surface-coating agents, and their use
Assignee: BASF SE
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Filing: 1983-10-31
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Granted: 1986-03-18
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Expires: 2003-10-31
Abstract
Abstract Heat-curable surface-coating agents useful not only for application as solvent-containing finishes and for powder coating but also, in their protonated form, for cathodic electrocoating contain, as a binder, a mixture of (A) a polyadduct, polycondensate or other polymer having an average molecular weight &upbar& Mn of from 500 to 10,000 and, per molecule, on average two or more OH and/or primary and/or secondary amino groups and (B) a reaction product of (a) one or more polyisocyanates, (b) one or more secondary monoamines and, if appropriate, (c) one or more polyalcohols having two or more hydroxyl groups.
Inventors
- 👤 Eberhard Schupp
- 👤 Werner Loch
- 👤 Rolf Osterloh
- 👤 Klaas Ahlers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:23
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/0804; C08G18/0809; C08G18/0814; C08G18/28; C08G18/40; C08G18/64; C08G18/6415; C08G18/643; C08G18/67; C08G18/6705; C08G18/70; C08G18/72; C08G18/80; C08G18/8061; C08G18/807; C08G18/808; C09; C09D; C09D5/00; C09D5/44; C09D5/4488; C09D5/4496; C08G2150/00; C08G2150/20; Y; Y10; Y10S; Y10S524/00; Y10S524/901; Y10S524/904; Y10S525/00; Y10S525/934; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31529
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
126 words
A heat-curable surface-coating agent which contains, as a binder, a mixture of (A) one or more polyadducts, polycondensates or other polymers having an average molecular weight M n of from 500 to 10,000 and, per molecule, on average two or more OH or primary or secondary amino groups, or two or more OH and primary or secondary amino groups, or two or more OH and primary and secondary amino groups, or two or more primary and secondary amino groups, with the proviso that component (A) is a reaction product of epoxy resins with alcohols, mercaptans or amines and (B) a reaction product of (a) one or more polyisocyanates, (b) one or more secondary monoamines and, (c) one or more polyalcohols having two or more hydroxy groups.
Claim 2
Dependent Claim
126 words
A heat-curable surface-coating agent which contains, as a binder, a mixture of (A) one or more polyadducts, polycondensates or other polymers having an average molecular weight M n of from 500 to 10,000 and, per molecule, on average two or more OH or primary or secondary amino groups, or two or more OH and primary or secondary amino groups, or two or more OH and primary and secondary amino groups, or two or more primary and secondary amino groups, with the proviso that component (A) is a reaction product of epoxy resins with alcohols, mercaptans or amines and (B) a reaction product of (a) one or more polyisocyanates, (b) one or more secondary monoamines and, (c) one or more polyalcohols having two or more hydroxy groups.
Claim 3
Dependent Claim
59 words
A surface-coating agent as defined in claim 1, which contains, as component (A), a reaction product of one or more aromatic or aliphatic epoxy resins or a mixture of aromatic and aliphatic epoxy resins and one or more primary, secondary or tertiary monoamines or polyamines or a mixture of one or more primary, secondary or tertiary monoamines and polyamines.
Claim 4
Dependent Claim
47 words
A surface-coating agent as defined in claim 1, which contains, as component (A), a polyadduct which carries basic nitrogen groups and, bonded to aromatic rings groups of the formula (I) ##STR1## where R 1 and R 2 are identical or different and each is hydrogen or methyl.
Claim 5
Dependent Claim
23 words
A surface-coating agent as defined in claim 1, which contains, as component (A), a reaction product of phenolic Mannich bases and epoxy resins.
Claim 6
Dependent Claim
16 words
A heat-curable surface-coating agent as defined in claim 1, which contains, as component (A), a polyacrylate.
Claim 7
Dependent Claim
28 words
A heat-curable surface-coating agent as defined in any one of claims 1, 2 or 3 to 5, which is water-dilutable after partial or complete neutralization with an acid.
Claim 8
Dependent Claim
22 words
An aqueous cathodic electrocoating bath, which contains from 5 to 30% by weight of a surface-coating agent as defined in claim 6.
Claim 9
Dependent Claim
18 words
A surface-coating agent as defined in claim 1 whereby (B) is a reaction product of (a) and (b).
Claim 10
Dependent Claim
47 words
A surface-coating agent as defined in claim 8, which contains, as component (A), a polyadduct which carries basic nitrogen groups and, bonded to aromatic rings groups of the formula (I) ##STR2## where R 1 and R 2 are identical or different and each is hydrogen or methyl.
Claim 11
Dependent Claim
23 words
A surface-coating agent as defined in claim 8, which contains, as component (A), a reaction product of phenolic Mannich bases and epoxy resins.
Claim 12
Dependent Claim
16 words
A heat-curable surface-coating agent as defined in claim 8, which contains, as component (A), a polyacrylate.
Claim 13
Dependent Claim
20 words
A heat-curable surface-coating agent as defined in claim 8, which is water-dilutable after partial or complete neutralization with an acid.
Claim 14
Dependent Claim
22 words
An aqueous cathodic electrocoating bath, which contains from 5 to 30% by weight of a surface-coating agent as defined in claim 12.
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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) | 1989-03-17 | 1989-09-16 | 1990-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-17 | 1993-09-16 | 1994-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-17 | 1997-09-16 | 1998-03-18 | $7700.00 | Window Closed / Lapsed |