US5389705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymers suitable as binders
Assignee: BASF Farben und Fasern AG
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Filing: 1993-08-06
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Granted: 1995-02-14
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Expires: 2013-08-06
Abstract
Abstract Novel polymers which are suitable as binders are obtainable by reacting (A) a base resin which has an average molecular weight M w of from 200 to 5,000 and contains on average from 1 to 3 epoxy or isocyanato groups as the reactive groups per molecule with (B) a mixture of (B1) 5 to 50% by weight of polyisobutylene which is terminated with primary amino groups and has an average molecular weight M w of from 500 to 5,000 and (B2) 5-95% by weight of an amidoamine which carries primary amino groups and is obtainable by condensation of diprimary diamines of 2 to 20 carbon atoms with aliphatic C 2 -C 44 -dicarboxylic acids, the amounts being such that from 1 to 5 equivalents of primary amino groups of (B) are present per equivalent of reactive groups of (A).
Inventors
- 👤 Klaus Huemke
- 👤 Helmut Fobbe
- 👤 Konrad Knoll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:00
CPC Classifications
C; C09; C09D; C09D163/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
139 words
A polymer which is suitable as a binder and is obtainable by reacting (A) a base resin which has an average molecular weight M w of from 200 to 5,000 and contains on average from 1 to 3 epoxy or isocyanato groups as the reactive groups per molecule with (B) a mixture of (B1) 5 to 50% by weight of a polyisobutylene terminated by primary amino groups and having an average molecular weight M w of from 500 to 5,000 and (B2) 5-95% by weight of an amidoamine carrying primary amino groups and obtained by condensation of diprimary diamines of 2 to 20 carbon atoms with aliphatic C 2 -C 44 -dicarboxylic acids, the amounts being such that from 1 to 5 equivalents of primary amino groups of (B) are present per equivalent of the reactive group of (A).
Claim 2
Dependent Claim
139 words
A polymer which is suitable as a binder and is obtainable by reacting (A) a base resin which has an average molecular weight M w of from 200 to 5,000 and contains on average from 1 to 3 epoxy or isocyanato groups as the reactive groups per molecule with (B) a mixture of (B1) 5 to 50% by weight of a polyisobutylene terminated by primary amino groups and having an average molecular weight M w of from 500 to 5,000 and (B2) 5-95% by weight of an amidoamine carrying primary amino groups and obtained by condensation of diprimary diamines of 2 to 20 carbon atoms with aliphatic C 2 -C 44 -dicarboxylic acids, the amounts being such that from 1 to 5 equivalents of primary amino groups of (B) are present per equivalent of the reactive group of (A).
Claim 3
Dependent Claim
38 words
A polymer which is suitable as a binder, as claimed in claim 1, containing a component (B2) in whose preparation 2-20 mol % of the dicarboxylic acid are replaced with an aliphatic C 12 -C 18 -monocarboxylic acid.
Claim 4
Dependent Claim
23 words
A polymer which is suitable as a binder, as claimed in claim 1, in which an epoxy resin is used as component (A).
Claim 5
Dependent Claim
152 words
A process for the preparation of a polymer as claimed in claim 1, wherein (A) a base resin which has an average molecular weight M w of from 200 to 5,000 and contains on average from 1 to 3 epoxy or isocyanato groups as the reactive groups per molecule is reacted with (B) a mixture of (B1) 5 to 50% by weight of a polyisobutylene which is terminated by primary amino groups and has an average molecular weight M w of from 500 to 5,000 and (B2) 5-95% by weight of an amidoamine which carries primary amino groups and is obtainable by condensation of diprimary diamines of 2 to 20 carbon atoms with aliphatic C 2 -C 44 -dicarboxylic acids, in the presence of an organic solvent, the amounts being such that from 1 to 5 equivalents of primary amino groups of (B) are present per equivalent of reactive groups of (A).
Claim 6
Dependent Claim
15 words
An aqueous dispersion containing 1-30% by weight of a polymer as claimed in claim 1.
Claim 7
Dependent Claim
16 words
An aqueous dispersion as claimed in claim 5, wherein the polymer is present in protonated form.
Claim 8
Dependent Claim
18 words
An electrocoating bath for cathodic electrocoating, containing 1-20% by weight of a polymer as claimed in claim 1.
Claim 9
Dependent Claim
15 words
An electrocoating bath for cathodic electrocoating, containing an aqueous dispersion as claimed in claim 5.
Claim 10
Dependent Claim
16 words
A coated article, obtainable by coating a substrate with a polymer as claimed in claim 1.
Claim 11
Dependent Claim
16 words
A coated article, obtainable by cathodic electrocoating with an electrocoating bath as claimed in claim 8.
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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) | 1998-02-13 | 1998-08-15 | 1999-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-02-13 | 2002-08-15 | 2003-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-02-13 | 2006-08-15 | 2007-02-14 | $7700.00 | Window Closed / Lapsed |