Patent US4267091A successfully refreshed from Google Patents.
US4267091A
Expired / Lapsed
US
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Binders for paints
Assignee: BASF SE
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Filing: 1979-04-17
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Granted: 1981-05-12
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Expires: 1999-04-17
Abstract
Abstract Binders which comprise (A) an aqueous emulsion of a copolymer A, having a glass transition temperature of 0-50° C., of monoolefinically unsaturated carboxylic acid esters, with or without styrene, vinyl acetate, vinyl chloride and acrylonitrile, which copolymer contains, as copolymerized units, small amounts of monoolefinically unsaturated monocarboxylic acids and/or dicarboxylic acids and/or their amides (of which the nitrogen atoms may or may not be alkyl-substituted and/or alkylol-substituted) and small amounts of monomers containing carbonyl groups, (B) from 0.05 to 1 mole, per mole of carbonyl groups present in the copolymer A, of a water-soluble aliphatic dihydrazine compound and (C) from 0 to 0.02 mole, per mole of dihydrazine compound, of a water-soluble zinc, manganese, cobalt and/or lead salt, or particularly suitable for use in paints and pebble dash renderings, since they give films which adhere particularly well to alkyd resin primers and which show particularly little tendency to whitening.
Inventors
- 👤 Hans J. Geelhaar
- 👤 Erich Penzel
- 👤 Gregor Ley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:37
CPC Classifications
C; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C09D133/10; C09D133/12; C08; C08K; C08K3/00; C08K3/10; C08K5/00; C08K5/16; C08K5/22; C08K5/24; C09D157/00; C09D157/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
227 words
A binder for paints and pebble dash renderings, which comprises (A) an aqueous emulsion, of from 20 to 70% strength, of a copolymer A, having a glass transition temperature of 0°-50° C., of (a) a monomer from the group comprising methyl methacrylate, styrene, vinyl acetate, tert.-butyl acrylate and vinyl chloride, with or without acrylonitrile and (b) a monomer from the group comprising alkyl methacrylates, where alkyl is of 2 to 8 carbon atoms, alkyl acrylates, where alkyl is of 2 to 8 carbon atoms, and/or vinyl propionate, which additionally contains, as copolymerized units, (c) from 0.5 to 10%, of its weight, of a monomer from the group comprising monoolefinically unsaturated monocarboxylic acids of 3 to 5 carbon atoms, monoolefinically unsaturated dicarboxylic acids of 4 or 5 carbon atoms, amides of monoolefinically unsaturated monocarboxylic acids of 3 to 5 carbon atoms, amides of monoolefinically unsaturated dicarboxylic acids of 4 or 5 carbon atoms and N-alkylolamides of monocarboxylic acids of 3 to 5 carbon atoms and (d) from 0.5 to 10%, of its weight, of monomers containing carbonyl groups, (B) from 0.05 to 1 mole, per mole of carbonyl groups present in the copolymer A, of a water-soluble aliphatic dihydrazine compound and (C) from 0.0002 to 0.02 mole, per mole of dihydrazine compound, of a water-soluble salt of a metal from the group comprising zinc, manganese, cobalt and lead.
Claim 2
Dependent Claim
227 words
A binder for paints and pebble dash renderings, which comprises (A) an aqueous emulsion, of from 20 to 70% strength, of a copolymer A, having a glass transition temperature of 0°-50° C., of (a) a monomer from the group comprising methyl methacrylate, styrene, vinyl acetate, tert.-butyl acrylate and vinyl chloride, with or without acrylonitrile and (b) a monomer from the group comprising alkyl methacrylates, where alkyl is of 2 to 8 carbon atoms, alkyl acrylates, where alkyl is of 2 to 8 carbon atoms, and/or vinyl propionate, which additionally contains, as copolymerized units, (c) from 0.5 to 10%, of its weight, of a monomer from the group comprising monoolefinically unsaturated monocarboxylic acids of 3 to 5 carbon atoms, monoolefinically unsaturated dicarboxylic acids of 4 or 5 carbon atoms, amides of monoolefinically unsaturated monocarboxylic acids of 3 to 5 carbon atoms, amides of monoolefinically unsaturated dicarboxylic acids of 4 or 5 carbon atoms and N-alkylolamides of monocarboxylic acids of 3 to 5 carbon atoms and (d) from 0.5 to 10%, of its weight, of monomers containing carbonyl groups, (B) from 0.05 to 1 mole, per mole of carbonyl groups present in the copolymer A, of a water-soluble aliphatic dihydrazine compound and (C) from 0.0002 to 0.02 mole, per mole of dihydrazine compound, of a water-soluble salt of a metal from the group comprising zinc, manganese, cobalt and lead.
Claim 3
Dependent Claim
28 words
The binder of claim 1, wherein component (C) consists of from 0.0002 to 0.01 mole of a sulfate or acetate of the metal per mole of dihydrazine compound.
Claim 4
Dependent Claim
28 words
The binder of claim 1, wherein the copolymer A contains, as copolymerized units, from 1 to 5%, of its weight, of polymerizable monoolefinically unsaturated aldehyde and/or keto compounds.
Claim 5
Dependent Claim
42 words
The binder of claim 1, wherein the water-soluble salt is selected from the group consisting of zinc sulfate, manganese-II sulfate, cobalt-II sulfate, the water-soluble acetates of zinc, manganese, cobalt and lead, lead nitrate, cobalt nitrate, manganese-II nitrate, zinc nitrite and lead nitrite.
Claim 6
Dependent Claim
10 words
The binder of claim 2 wherein the metal is zinc.
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) | 1984-05-11 | 1984-11-10 | 1985-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-11 | 1988-11-10 | 1989-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-11 | 1992-11-10 | 1993-05-12 | $7700.00 | Window Closed / Lapsed |