The use o f LVPB-g-MA modified organoclay dramatically increased the degree
o f dispersion as measured by x-ray diffraction. This resulted in improved thermal
stability, decreased swelling, and increased tensile modulus for LVPB-g-MA modified
clay compositions. The flame resistance testing, however, showed poorer results for the
EPDM /m odified organoclay system as compared to the EPDM /organoclay compound
without modification.