Patent US5389705A successfully refreshed from Google Patents.
US5389705A
Expired / Lapsed
US
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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 18:58
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.
References Cited (Backward Citations)
US4102846A
Cited
EP0381347A1
Cited
EP0398755A2
Cited
EP0411576A2
Cited
US5057195A
Cited
EP0416762A1
Cited
EP0439074A2
Cited
US5213648A
Cited
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 |