Thermoplastic low-profile additives and use thereof in unsaturated polyester resin compositions
AssigneeOwens Corning Fiberglas Technology, Inc.
InventorsLouis R. Ross, Robert J. Schiavone, Timothy W. Ramey
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Abstract
A low-profile additive composition is disclosed which comprises ethylene glycol, at least one nonpolar diol, adipic acid and trimellitic anhydride. The low-profile additive, when included in an unsaturated polyester resin systems, for use in making sheet molding compositions, provides improved processing characteristics such as viscosity thickening plateau, paste viscosity and phase separation during maturation when the unsaturated polyester.
Claims15
A saturated low-profile additive thermoplastic polymer for use in a sheet molding composition, the thermoplastic polymer comprising ethylene glycol, at least one nonpolar diol, adipic acid and trimellitic anhydride.
Dependencies are inferred from the claim text.