Title:
URETHANE UREA ACRYLIC CAST SHEET MATERIALS
Document Type and Number:
WIPO Patent Application WO/2018/098099
Kind Code:
A3
Abstract:
Urethane-urea-acrylic cast sheet materials are made from a reaction product of components including polyisocyanate compound having at least two isocyanate functional groups and optional polyol (or pre-reacted urethane prepolymer having at least two isocyanate functional groups), curative having at least two amine functional groups, acrylic monomer, and optional multifunctional monomer having a first functional group having an active hydrogen and a second functional group having at least one double bond. The urethane-urea-acrylic cast sheet materials exhibit excellent impact properties and desirable hardness while also maintaining optical properties such as low haze that can be comparable to that of conventional cast acrylic sheet.
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Inventors:
SIMONEAU CHRISTOPHER A (US)
GUERRA CARLOS B (US)
GUERRA CARLOS B (US)
Application Number:
PCT/US2017/062666
Publication Date:
June 13, 2019
Filing Date:
November 21, 2017
Export Citation:
Assignee:
SPARTECH LLC (US)
International Classes:
C08G18/10; C08G18/67; C08G18/75
Domestic Patent References:
| WO2015119957A1 | 2015-08-13 |
Foreign References:
| EP0024379A1 | 1981-03-04 |
Other References:
See also references of EP 3545024A4
Attorney, Agent or Firm:
HARPER, Jesse S. et al. (US)
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