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US4451509A Expired / Lapsed US ⏱️ 0.0 years remaining

Radiation-hardenable aqueous binder emulsions of acrylate prepolymer with unsaturated polyester emulsifier having benzyloxy and alkylene-oxy groups

Assignee: Bayer AG
•
Filing: 1983-01-03
•
Granted: 1984-05-29
•
Expires: 2003-01-03
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Abstract

Abstract This invention relates to aqueous, radiation-hardenable emulsions produced from mixtures of the following: (A) from 90 to 50%, by weight, of at least one acrylate prepolymer, containing, per 100 g, from 0.2 to 0.65 mols of (meth)acryloyloxy groups and having a viscosity of from 500 to 300,000 mPa.s, measured at 20 DEG C.; (B) from 10 to 50%, by weight, of at least one emulsifier polyester having a viscosity of from 2,000 to 200,000 mPa.s, containing, per 100 g: (1) from 0.06 to 0.28 mols of condensed units of an alpha - beta -mono-olefinically unsaturated dicarboxylic acid; (2) from 0.04 to 0.34 mols of benzyloxy groups; and (3) from 30 to 80%, by weight, based on emulsifier polyester, of alkylene-oxy groups (-alkylene-O-); the sum of (A) and (B) amounting to 100%, (C) from 25 to 400%, by weight, of water; and (D) from 0 to 10%, by weight, of at least one conventional photoinitiator; the percentage contents of (C) and (D) being based on the sum of (A) and (B). The emulsions are used in particular for coating wood and wood-like materials.

Inventors

  • 👤 Walter Frank
  • 👤 Otto Bendszus
  • 👤 Jurgen Meixner
  • 👤 Hans J. Freier
  • 👤 Hans-Joachim Traenckner

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 21:29
CPC Classifications
C; C08; C08F; C08F299/00; C08F299/02; C08F299/022; C08F299/024; Y; Y10; Y10S; Y10S525/00; Y10S525/921; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31591

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 158 words
An aqueous radiation-hardenable emulsion which comprises: (A) from 90 to 50%, by weight, of at least one acrylate prepolymer containing, per 100 g, from 0.2 to 0.65 mols of (meth)acryloyloxy groups and having a viscosity (20° C.) of from 500 to 300,000 mPas; (B) from 10 to 50%, by weight, of at least one emulsifier polyester having a viscosity (20° C.) of from 2000 to 200,000 mPas and containing, per 100 g: (1) from 0.06 to 0.28 mols of condensed units of at least one α,β-mono-olefinically unsaturated dicarboxylic acid; (2) from 0.04 to 0.34 mols of benzyloxy groups; and (3) from 30 to 80%, by weight, based on (B), of alkylene-oxy groups; the sum of (A) and (B) amounting to 100%; (C) from 25 to 400%, by weight, of water; and (D) from 0 to 10%, by weight, of at least one photoinitiator; the contents of (C) and (D) being based on the sum of (A) and (B).
Claim 2
Dependent Claim 158 words
An aqueous radiation-hardenable emulsion which comprises: (A) from 90 to 50%, by weight, of at least one acrylate prepolymer containing, per 100 g, from 0.2 to 0.65 mols of (meth)acryloyloxy groups and having a viscosity (20° C.) of from 500 to 300,000 mPas; (B) from 10 to 50%, by weight, of at least one emulsifier polyester having a viscosity (20° C.) of from 2000 to 200,000 mPas and containing, per 100 g: (1) from 0.06 to 0.28 mols of condensed units of at least one α,β-mono-olefinically unsaturated dicarboxylic acid; (2) from 0.04 to 0.34 mols of benzyloxy groups; and (3) from 30 to 80%, by weight, based on (B), of alkylene-oxy groups; the sum of (A) and (B) amounting to 100%; (C) from 25 to 400%, by weight, of water; and (D) from 0 to 10%, by weight, of at least one photoinitiator; the contents of (C) and (D) being based on the sum of (A) and (B).
Claim 3
Dependent Claim 133 words
An emulsion as claimed in claim 1 comprising: (A) from 90 to 70%, by weight, of at least one acrylate prepolymer containing, per 100 g, from 0.3 to 0.55 mols of (meth)acryloyloxy groups and having a viscosity (20° C.) of from 1000 to 100,000 mPas; (B) from 10 to 30%, by weight, of at least one emulsifier polyester having a viscosity (20° C.) of from 10,000 to 50,000 mPas and containing, per 100 g; (1) from 0.1 to 0.23 mols of condensed units of at least one α,β-mono-olefinically unsaturated dicarboxylic acid; (2) from 0.1 to 0.2 mols of benzyloxy groups; and (3) from 40 to 78%, by weight, of alkylene-oxy groups; (C) from 40 to 300%, by weight, of water; and (D) from 0 to 5%, by weight, of at least one photoinitiator.
Claim 4
Dependent Claim 34 words
A process for the production of a coating on a substrate which comprises applying an emulsion as claimed in claim 1 to a substrate and hardening the the emulsion by the action of radiation.
Claim 5
Dependent Claim 17 words
A process as claimed in claim 3 in which the substrate is wood or a veneer-imitation film.

References Cited (Backward Citations)

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US3442842A Cited
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US4107012A Cited
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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) 1987-05-29 1987-11-28 1988-05-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1991-05-29 1991-11-28 1992-05-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1995-05-29 1995-11-28 1996-05-29 $7700.00 Window Closed / Lapsed

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