C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
400/5725
C08K 3/22 (2006.01) C08G 63/52 (2006.01) C08L 67/06 (2006.01)
Patent
CA 1069638
Abstract of the Disclosure Curable polyester resin compositions formed from unsaturated polycarboxylic acids and polyols and a crosslinking aliphatic vinyl monomer component being essentially free of aromaticity are disclosed. The degree of unsaturation in the polyesters is carefully controlled so that the resin can be cured to produce strong thermoset products. Resins of this nature can be filled with high levels of aluminum hydrate to give compositions that have high oxygen indices and very low smoke densities as measured by the National Bureau of Standards Smoke Chamber. Also, when burned, the compositions of the invention emit non-toxic gases. Preferably, both the polyester and the vinyl monomer component are aliphatic, although a controlled amount of aromaticity can be present in the polyester portion.
257044
Makhlouf Joseph M.
Parker Earl E.
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