Patent US4904740A successfully refreshed from Google Patents.
US4904740A
Expired / Lapsed
US
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Binder combinations, a process for their preparation and their use
Assignee: Bayer AG
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Filing: 1988-11-28
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Granted: 1990-02-27
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Expires: 2008-11-28
Abstract
Abstract Compositions useful as a binder in lacquers and coating compositions and which are curable by moisture contain: (A) from 30 to 99 parts by weight of at least one copolymer of olefinically unsaturated compounds having a weight average molecular weight of from 1500 to 75,000 and containing chemically incorporated moieties capable of undergoing an addition reaction with amino groups, and (B) from 1 to 70 parts by weight of at least one organic polyamine containing blocked amino groups, wherein (i) the copolymers of component (A) contain both intramolecular carboxylic acid anhydride moieties and epoxide moieties in a chemically bound form, with the anhydride equivalent weight of the copolymers being from 393 to 9,800 and the epoxide equivalent weight of the copolymers from 568 to 14,200, and (ii) the binder composition contains from 0.2 to 8 anhydride and epoxide moieties for each blocked amino group.
Inventors
- 👤 Harald Blum
- 👤 Josef Pedain
- 👤 Christian Wamprecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:53
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/17; C08F; C08F8/00; C08F8/30; C08F8/32; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C09D133/062; C09D133/068; C08F2810/00; C08F2810/20
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
133 words
Moisture curable binder compositions which comprise: (A) from 30 to 99 parts by weight of at least one copolymer of olefinically unsaturated compounds having a weight average molecular weight of from 1500 to 75,000 and containing chemically incorporated moieties capable of undergoing an addition reaction with amino groups, and (B) from 1 to 70 parts by weight of at least one organic poyamine containing blocked amino groups, wherein (i) the copolymers of component (A) contain both intramolecular carboxylic acid anhydride moieties and epoxide moieties in a chemically bound form, with the anhydride equivalent weight of the copolymers being from 393 to 9,800 and the epoxide equivalent weight of the copolymers from 568 to 14,200, and (ii) the binder composition contains from 0.2 to 8 anhydride and epoxide moieties for each blocked amino group.
Claim 2
Dependent Claim
133 words
Moisture curable binder compositions which comprise: (A) from 30 to 99 parts by weight of at least one copolymer of olefinically unsaturated compounds having a weight average molecular weight of from 1500 to 75,000 and containing chemically incorporated moieties capable of undergoing an addition reaction with amino groups, and (B) from 1 to 70 parts by weight of at least one organic poyamine containing blocked amino groups, wherein (i) the copolymers of component (A) contain both intramolecular carboxylic acid anhydride moieties and epoxide moieties in a chemically bound form, with the anhydride equivalent weight of the copolymers being from 393 to 9,800 and the epoxide equivalent weight of the copolymers from 568 to 14,200, and (ii) the binder composition contains from 0.2 to 8 anhydride and epoxide moieties for each blocked amino group.
Claim 3
Dependent Claim
167 words
Binder compositions according to claim 1 wherein the copolymers of component (A) are copolymers obtained by radically initiated copolymerization of a monomer mixture comprising: (a) from 1 to 25 parts by weight of copolymerizable, anhydride-functional monomers, (b) from 1 to 25 parts by weight of copolymerizable, epoxide-functional monomers and (c) from 50 to 98 parts by weight of at least one other copolymerizable monomer corresponding to the formulae ##STR13## wherein R 1 and R 4 are the same or different and each is a straight chained or branched aliphatic hydrocarbon group containing 1 to 18 carbon atoms, R 2 is hydrogen, methyl, ethyl, chloro or fluoro; and R 3 is aryl containing 6 to 12 carbon atoms, aralkyl containing 6 to 12 aryl carbon atoms, nitrile, carboxylate containing 2 to 9 carbon atoms, alkoxy containing 2 to 7 carbon atoms, or an aminocarbonyl in which the nitrogen is unsubstituted or substituted by alkyl with 1 to 6 carbon atoms or alkylene-alkoxy containing 2 to 6 carbon atoms.
Claim 4
Dependent Claim
25 words
Binder compositions according to claim 2 wherein the copolymers of component (A) contain maleic acid anhydride as the anhydride-functional monomer (a) in a copolymerized form.
Claim 5
Dependent Claim
24 words
Binder compositions according to claim 2 wherein the copolymers of component (A) contain glycidyl (meth)acrylate as the epoxide-functional monomer (b) in a copolymerized form.
Claim 6
Dependent Claim
22 words
Binder compositions according to claim 1 wherein component (B) contains at least one group selected from aldimine, ketimine, oxazolane, hexahydro-pyrimidine and tetrahydroimidazole.
Claim 7
Dependent Claim
26 words
Binder compositions according to claim 1 additionally containing one or more of: (C) monohydric or polyhydric alcohols, (D) catalysts, and (E) further auxiliary agents and additives.
Claim 8
Dependent Claim
12 words
Lacquer or coating composition which contains binder compositions according to claim 1.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-02-26 | 1993-08-28 | 1994-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-26 | 1997-08-28 | 1998-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-26 | 2001-08-28 | 2002-02-27 | $7700.00 | Window Closed / Lapsed |