Matured moldable thermosetting dual polyester resin system

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

1979-09-27

1981-04-07

Seccuro, Carman J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

525 19, 525 28, 525 36, 525 42, 525 49, 260 40TN, C08K 322, C08L 6706

Patent

active

042605385

ABSTRACT:
This invention relates to an improved, matured, moldabe, thermosetting polyester resin system which includes at least two different polyester resins, one of which is faster reactive and containing a minor amount of isophthalic acid and the other of which is slower reactive and devoid of such acid, such system also including suitabe reinforcing fibers and inert filler along with an organic polyisocyanate, a metallic oxide or hydroxide, an aliphatically-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.

REFERENCES:
patent: 3824201 (1974-07-01), McGranaghan et al.
patent: 3886229 (1975-05-01), Hutchinson et al.
patent: 4067845 (1978-01-01), Epel et al.

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