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US4585828A
Expired / Lapsed
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Emulsifiable radiation-curable acryloyl-containing polyesters, a process for their preparation and their use
Assignee: Bayer AG
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Filing: 1984-10-29
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Granted: 1986-04-29
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Expires: 2004-10-29
Abstract
Abstract The invention relates to acryloyl-containing polyesters having acid numbers AN of 1-50 mg of KOH/g of substance and having been polymerized from cocondensed units of (A) 1.0 mole of at least one dicarboxylic anhydride, (B) 0.02-0.08 mole of at least one saturated dihydric polyether alcohol having a molecular weight &upbar& Mn of about 1,000 to 2,000, (C) 0.48-0.42 mole of at least one dihydric saturated alcohol, (D) 1.0 mole of at least one trihydric saturated oxyalkylated alcohol with a degree of oxyalkylation of 2-6, up to 50 mole-% of said oxalkylated alcohol may be replaced by a trihydric, saturated, non-oxalkylated alcohol, and (E) 1.0-2.0 moles of acrylic acid, to a process for their preparation, and to their use as radiation-curable binders in aqueous emulsion preferably for coating wood and woodlike materials, for which the presence of customary external surface-active agents and reactive radiation-curable diluents is not necessary.
Inventors
- 👤 Jurgen Meixner
- 👤 Hans-Joachim Traenckner
- 👤 Wolfgang Kremer
- 👤 Manfred Muller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:25
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/66; C08G63/668; C08G63/676; C08F; C08F299/00; C08F299/02; C08F299/04; C08F299/0485; C08F299/0492; C08G63/02; C08G63/12; C08G63/16; C08G63/20; C08G63/21; C08G63/46; C08G63/47; Y; Y10; Y10S; Y10S525/00; Y10S525/921
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
207 words
A process for preparing an acryloyl-containing polyester having an acid number of 1-50 mg of KOH/g of substance, from starting materials comprising: (A) 1.0 mole of at least one dicarboxylic anhydride, (B) 0.02-0.08 mole of at least one saturated dihydric polyether alcohol having a molecular weight Mn of about 1,000 to 2,000, (C) 0.48-0.42 mole of at least one dihydric saturated alcohol selected from ethylene glycol, 1,2-propylene glycol, 1,3-propylene glycol, butane-1,2-diol, butane-1,3-diol, butane-1,4-diol, pentane-1,3-diol, hexane-1,6-diol or 2-ethylhexanediol, (D) 0.5 to 1.0 mole of at least one trihydric saturated oxyalkylated alcohol with a degree of oxyalkylation of 2-6 and 0.5 to 0 mole of at least one trihydric saturated non-oxyalkylated alcohol, and (E) 1.0-2.0 moles of acrylic acid by the steps comprising in a first stage, heating said components (A), (B) and (C) at temperatures of 75° C. to 130° C. in a water-insoluble solvent under nitrogen for three to eight hours, then, in a second stage, adding said components (D) and (E) simultaneously or in succession, and heating the resulting mixture at temperatures of 75° C. to 130° C. in the presence of an acid catalyst and of an inhibitor under azeotropic conditions until no more water separates off and the remaining solvent begins to distil over.
Claim 2
Dependent Claim
207 words
A process for preparing an acryloyl-containing polyester having an acid number of 1-50 mg of KOH/g of substance, from starting materials comprising: (A) 1.0 mole of at least one dicarboxylic anhydride, (B) 0.02-0.08 mole of at least one saturated dihydric polyether alcohol having a molecular weight Mn of about 1,000 to 2,000, (C) 0.48-0.42 mole of at least one dihydric saturated alcohol selected from ethylene glycol, 1,2-propylene glycol, 1,3-propylene glycol, butane-1,2-diol, butane-1,3-diol, butane-1,4-diol, pentane-1,3-diol, hexane-1,6-diol or 2-ethylhexanediol, (D) 0.5 to 1.0 mole of at least one trihydric saturated oxyalkylated alcohol with a degree of oxyalkylation of 2-6 and 0.5 to 0 mole of at least one trihydric saturated non-oxyalkylated alcohol, and (E) 1.0-2.0 moles of acrylic acid by the steps comprising in a first stage, heating said components (A), (B) and (C) at temperatures of 75° C. to 130° C. in a water-insoluble solvent under nitrogen for three to eight hours, then, in a second stage, adding said components (D) and (E) simultaneously or in succession, and heating the resulting mixture at temperatures of 75° C. to 130° C. in the presence of an acid catalyst and of an inhibitor under azeotropic conditions until no more water separates off and the remaining solvent begins to distil over.
Claim 3
Dependent Claim
18 words
A process according to claim 1, wherein the dihydric saturated alcohol is ethylene glycol or 1,2 propylene glycol.
Claim 4
Dependent Claim
19 words
A process according to claim 1, wherein components (A) and (B) are added in succession during the first stage.
Claim 5
Dependent Claim
18 words
A process according to claim 3, wherein the dihydric saturated alcohol is ethylene glycol or 1,2 propylene glycol.
Claim 6
Dependent Claim
183 words
An acryloyl-containing polyester having an acid number of 1-50 mg of KOH/g of substance comprising cocondensed units of (A) 1.0 mole of at least one dicarboxylic anhydride, (B) 0.02-0.08 mole of at least one saturated dihydric polyether alcohol having a molecular weight Mn of about 1,000 to 2,000, (C) 0.48-0.42 mole of at least one dihydric saturated alcohol, (D) 0.5 to 1.0 mole of at least one trihydric saturated oxyalkylated alcohol with a degree of oxyalkylation of 2-6 and 0.5 to 0 mole of a trihydric saturated non-oxyalkylated alcohol and (E) 1.0-2.0 moles of acrylic acid, prepared by the steps comprising heating said components (A), (B) and (C) at temperatures of 75° C. to 130° C. in a water-insoluble solvent under nitrogen for three to eight hours, then, in a second stage, adding said components (D) and (E) simultaneously or in succession and heating the resulting mixture at temperatures of 75° C. to 130° C. in the presence of an acid catalyst and of an inhibitor under azeotropic conditions until no more water separates off and the remaining solvent begins to distil over.
Claim 7
Dependent Claim
183 words
An acryloyl-containing polyester having an acid number of 1-50 mg of KOH/g of substance comprising cocondensed units of (A) 1.0 mole of at least one dicarboxylic anhydride, (B) 0.02-0.08 mole of at least one saturated dihydric polyether alcohol having a molecular weight Mn of about 1,000 to 2,000, (C) 0.48-0.42 mole of at least one dihydric saturated alcohol, (D) 0.5 to 1.0 mole of at least one trihydric saturated oxyalkylated alcohol with a degree of oxyalkylation of 2-6 and 0.5 to 0 mole of a trihydric saturated non-oxyalkylated alcohol and (E) 1.0-2.0 moles of acrylic acid, prepared by the steps comprising heating said components (A), (B) and (C) at temperatures of 75° C. to 130° C. in a water-insoluble solvent under nitrogen for three to eight hours, then, in a second stage, adding said components (D) and (E) simultaneously or in succession and heating the resulting mixture at temperatures of 75° C. to 130° C. in the presence of an acid catalyst and of an inhibitor under azeotropic conditions until no more water separates off and the remaining solvent begins to distil over.
Claim 8
Dependent Claim
19 words
An acryloyl-containing polyester according to claim 5, wherein the dihydric saturated alcohol is ethylene glycol or 1,2 propylene glycol.
Claim 9
Dependent Claim
20 words
An acryloyl-containing polyester according to claim 5, wherein components (A) and (B) are added in succession during the first stage.
Claim 10
Dependent Claim
20 words
An acryloyl-containing polyester according to claim 6, wherein components (A) and (B) are added in succession during the first stage.
Claim 11
Dependent Claim
13 words
An aqueous emulsion containing an acryloyl-containing radiation-curable polyester as claimed in claim 5.
References Cited (Backward Citations)
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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) | 1989-04-28 | 1989-10-28 | 1990-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-28 | 1993-10-28 | 1994-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-28 | 1997-10-28 | 1998-04-29 | $7700.00 | Window Closed / Lapsed |