Title:
RADIATION-CURABLE COATINGS FOR PLASTIC SUSBTRATES FROM MULTIFUNCTIONAL ACRYLATE OLIGOMERS
Document Type and Number:
WIPO Patent Application WO/2005/108434
Kind Code:
A1
Abstract:
The invention detailed herein comprises a family of radiation-curable coating formulations specifically for plastics substrates. These coating formulations are based on multifunctional acrylate resins formed by the reaction of acrylate monomers and oligomers with B-keto esters (e.g., acetoacetates), B-diketones (e.g., 2,4-pentanedione), B-keto amides (e.g., acetoacetanilide, acetoacetamide), and/or other B-dicarbonyl compounds that can participate in the Michael addition reaction. An essential novelty of these coating resins is that they will cure under standard UV-cure conditions without the addition of traditional photoinitiators. Other materials, both reactive (conventional acrylates) and non-reactive (e.g., solvents) may also be incorporated into the resin oligomers to enhance the coatings properties on rigid plastic substrates. These materials include a variety of acrylic monomers and oligomers, primary, secondary and tertiary amines, acid-functional monomers and oligomers, silicones, waxes and elastomers, among others. Coatings based on these novel multifunctional acrylate resins exhibit excellent adhesion and shrinkage control, flexibility, solvent resistance, scratch and mar resistance, impact resistance, color, and durability across a wide range of plastic materials. These coatings may be cured via chemical means, thermally, or by exposure to UV or electron beam radiation.
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Inventors:
GOULD MICHAEL L (US)
SHERIDAN MATTHEW S (US)
MERINO THOMAS L (US)
MEJIRITSKI ALEXANDRE (US)
MARTIN DUSTIN B (US)
SHERIDAN MATTHEW S (US)
MERINO THOMAS L (US)
MEJIRITSKI ALEXANDRE (US)
MARTIN DUSTIN B (US)
Application Number:
PCT/US2005/014831
Publication Date:
November 17, 2005
Filing Date:
April 29, 2005
Export Citation:
Assignee:
ASHLAND INC (US)
GOULD MICHAEL L (US)
SHERIDAN MATTHEW S (US)
MERINO THOMAS L (US)
MEJIRITSKI ALEXANDRE (US)
MARTIN DUSTIN B (US)
GOULD MICHAEL L (US)
SHERIDAN MATTHEW S (US)
MERINO THOMAS L (US)
MEJIRITSKI ALEXANDRE (US)
MARTIN DUSTIN B (US)
International Classes:
C08F2/46; C08F265/04; C08F265/06; C08F283/01; C08F289/00; C08F290/06; C08G2/00; C08J3/28; C08J7/043; C08J7/046; C09D133/06; C09D133/08; C09D133/14; C09D151/00; C09D151/08; C09D167/07; C09D175/16; C08K5/07; (IPC1-7): C08F2/46; C08J3/28
Foreign References:
| US6706414B1 | 2004-03-16 | |||
| US5945489A | 1999-08-31 | |||
| US6025410A | 2000-02-15 | |||
| US5945489A | 1999-08-31 | |||
| US6025410A | 2000-02-15 |
Other References:
MACROMOLECULAR RAPID COMMUNICATIONS, vol. 16, 1995, pages 135
See also references of EP 1756170A4
See also references of EP 1756170A4
Attorney, Agent or Firm:
Connaughton, Martin (5200 Blazer Parkway Dublin, OH, US)
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