Exxon Research and Engineering Company

Don A Plank

Joseph C Floyd

Novel bisphenol condensation derivatives including polyphosphorous, polyborate, polycarbonate and polysilicate products which are capped with various capping agents such as phenoxy or alkoxy compounds are effective stabilizers for a wide spectrum of hydrocarbon polymeric materials against their thermal oxidative and photochemical degradations.

Novel bisphenol derivatives and uses thereof

Novel bisphenol condensation derivatives including polyphosphorous, polyborate, polycarbonate and polysilicate products which are capped with various capping agents such as phenoxy or alkoxy compounds are efffective stabilizers for a wide spectrum of hydrocarbon polymeric materials against their thermal oxidative and photochemical degradations.

Plastic compositions containing polyolefins and substituted nitrogen heterocyclic compounds having the formula: ##STR1## wherein X is nitrogen or CH, and R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are from the group hydrogen; a straight or branched chain alkyl group having from 1 to 6 carbon atoms; cyano; nitro; lower alkoxy; fluorine, dialkylamino, phenyl, halo-phenyl, benzyl and halo-benzyl, have been found to be photodegradable plastic materials for use, for example, as wrapping films and agricultural mulching films.

Photodegradable plastic compositions containing nitrogen heterocyclic

Plastic compositions containing polyolefins and dinaphthylphthalate compounds having the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 independently are from the group hydrogen; a straight or branched chain alkyl group having from 1 to 6 carbon atoms; cyano; nitro; lower alkoxy; fluorine, dialkylamino, phenyl, halo-phenyl, benzyl and halo-benzyl, have been found to be photodegradable plastic materials for use, for example, as wrapping films and agricultural mulching films.

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Sarnia, Canada

Don A Plank