Process for producing sticky polymers

A process for producing ethylene propylene ethylidenenorbornene terpolymers at polymerization reaction temperatures in excess of the softening temperature of said ethylene propylene ethylidenenorbornene terpolymers in a fluidized bed reactor catalyzed by a transition metal catalyst, which comprises conducting said polymerization reaction above the softening temperature of said ethylene/propylene/ethylidenenorbornene terpolymers in the presence of about 0.3 to about 50 weight percent, based on the weight of the final product of carbon black having a primary particle size of about 10 to about 100 nanometers, an average size of aggregate of about 0.1 to about 10 microns, a specific surface area of about 30 to about 1,500 m.sup.2 /gm, and a dibutylphthalate absorption of about 10 to about 350 cc/100 grams, whereby polymer agglomeration of said ethylene/propylene/ethylidenenorbornene terpolymers is maintained at a size suitable for continuously producing said ethylene/propylene/ethylidenenorbornene terpolymers.

A process for producing ethylene propylene rubbers at polymerization reaction temperatures in excess of the softening temperature of said ethylene propylene rubbers in a fluidized bed reactor catalyzed by a transition metal catalyst, which comprises conducting said polymerization reaction above the softening temperature of said copolymer in the presence of about 0.3 to about 50 weight percent, based on the weight of the final product of carbon black having a primary particle size of about 10 to about 100 nanometers, an average size of aggregate of about 0.1 to about 10 microns, a specific surface area of about 30 to about 1,500 m.sup.2 /gm, and a dibutylphthalate absorption of about 10 to about 350 cc/100 grams, whereby polymer agglomeration of said ethylene propylene rubbers is maintained at a size suitable for continuously producing said ethylene propylene rubbers.

A process for producing ethylene propylene ethylidenenorbornene terpolymers at polymerization reaction temperatures in excess of the softening temperature of said ethylene propylene ethylidenenorbornene terpolymers in a fluidized bed reactor catalyzed by a transition metal catalyst, which comprises conducting said polymerization reaction above the softening temperature of said ethylene/propylene/ethylidenenorbornene terpolymers in the presence of about 0.3 to about 50 weight percent, based on the weight of the final product of silica having a primary particle size of about 5 to about 50 nanometers, an average size of aggregate of about 0.1 to about 10 microns, a specific surface area of about 50 to about 500 m.sup.2 /gm, and a dibutylphthalate absorption of about 100 to about 400 cc/100 grams, whereby polymer agglomeration of said ethylene/propylene/ethylidenenorbornene terpolymers is maintained at a size suitable for continuously producing said ethylene/propylene/ethylidenenorbornene terpolymers.

A process for producing ethylene propylene rubbers at polymerization reaction temperatures in excess of the softening temperature of said ethylene propylene rubbers in a fluidized bed reactor catalyzed by a transition metal catalyst, which comprises conducting said polymerization reaction above the softening temperature of said ethylene propylene rubbers in the presence of about 0.3 to about 50 weight percent, based on the weight of the final product of silica having a primary particle size of about 5 to about 50 nanometers, an average size of aggregate of about 0.1 to about 10 microns, a specific surface area of about 50 to about 500 m.sup.2 /gm, and a dibutylphthalate absorption of about 100 to about 400 cc/100 grams, whereby polymer agglomeration of said ethylene propylene rubbers is maintained at a size suitable for continuously producing said ethylene propylene rubbers.