Hooker Chemicals & Plastics Corporation

Richard D Carlson

James J Maul

James J Duffy

James L Dever

Harry W Marciniak

James C Watson

Akio Takahashi

Thermoplastic elastomers having fire retardancy and improved properties are provided by incorporating therein, Diels-Alder diadducts of polyhalogenated cyclopentadienes and a substituted or non-substituted furan.

Flame retardant polymeric compositions containing halogenated

Halogenated derivatives of the Diels-Alder adducts of norbornenes and halocyclopentadienes are excellent fire retardant additives for polymers free of nitrogen in the monomeric units of the polymer chain, the additive-containing polymers being characterized by exceptional heat stability; excellent mechanical properties and improved molding characteristics.

Halogen containing fire retardant additive with improved heat stability

Phosphaadamantane compounds are provided to control the curing behavior of phenolic-type novolac resins under storage conditions at moderate temperatures.

Composition comprising phenolic resins and curing amounts triaza

Brominated phosphoramidates of the structure ##STR1## wherein R.sup.1 and R.sup.2 are independently selected from the group consisting of hydrogen, chloro, bromo, and chloro or bromo substituted alkyl of from 1 to 8 carbon atoms;

Brominated phosphoramidates

Brominated phosphoramidates of the structure ##STR1## wherein R.sup.1 and R.sup.2 are independently selected from the group consisting of hydrogen, chloro, bromo, and chloro or bromo substituted alkyl of from 1 to 8 carbon atoms; R.sup.3 is selected from the group consisting of hydrogen, alkyl of from 1 to 8 carbon atoms, hydroxy substituted alkyl of from 1 to 8 carbon atoms and chloro or bromo substituted alkyl of from 1 to 8 carbon atoms; R.sup.4 is independently selected from the group consisting of R.sup.3 and a group of the structure ##STR2## wherein R is selected from the group consisting of alkylene of from 2 to 8 carbon atoms; phenylene, biphenylene and dicyclohexylene; provided that at least one of R.sup.1 and R.sup.2 contains a bromine atom and at least one of R.sup.3 and R.sup.4 contains a replaceable hydrogen. The phosphoramidates of the present invention are useful to impart a flame retardant property to combustible materials.

Polymeric materials having fire retardancy and improved properties are provided by incorporating therein, Diels-Alder diadducts of polyhalogenated cyclopentadienes and a substituted or non-substituted furan.

Polymeric materials are rendered fire retardant by incorporating therein a Diels-Alder adduct of a halogenated cyclopentadiene and bicyclononadiene. The fire retardance of the compositions can be further enhanced by the incorporation therein of a metallic compound, particularly a compound of antimony, arsenic or bismuth. A preferred metallic compound is antimony oxide.

Polymer compositions containing adduct of hexahalocyclopentadiene and

Halogenated derivatives of the Diels-Alder adducts of norbornenes and halocyclopentadienes are excellent fire retardant additives for polymers, which additives are characterized by exceptional heat stability.

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Grand Island, NY, United States of America

Richard D Carlson