Matured moldable thermosetting dual polyester resin system

Details Matured moldable thermosetting dual polyester resin system Matured moldable thermosetting dual polyester resin system

C - Chemistry, Metallurgy

08

L

400/1204, 400/13

C08L 75/06 (2006.01) C08G 18/68 (2006.01) C08K 3/22 (2006.01) C08K 13/02 (2006.01) C08L 67/06 (2006.01) C08L 75/14 (2006.01)

Patent

CA 1143088

ABSTRACT OF THE INVENTION This invention relates to an improved, matured, moldable, thermo- setting polyester resin system which includes at least two different polyester resins, one of which is faster reactive and containing a minor amount of iso- phthalic acid and the other of which is slower reactive and devoid of such acid, such system also including suitable reinforcing fibers and inert filler along with an organic polyisocyanate, a metallic oxide or hydroxide, an ali- phatically-unsaturated monomer, a free radical polymerization catalyst, and an internal mold release agent, the resin system being especially useful for pressure molding of precisely-formed articles having greatly improved impact resistance and flexibility.

361138

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