Process for preparing alpha-olefin polymers

Details Process for preparing alpha-olefin polymers Process for preparing alpha-olefin polymers

1985-09-03

1987-01-06

Garvin, Patrick P.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526148, 526151, 526156, 526159, 5263485, 502120, C08F 402, C08F 464

Patent

active

046347526

ABSTRACT:
Alpha-olefin polymerization catalysts are prepared by heating a solid porous carrier having reactive OH groups in the atmosphere of an oxygen-containing gas. The resulting catalysts exhibit higher productivity and produce ethylene polymers or ethylene/C.sub.3 -C.sub.10 copolymers having higher bulk density than similar catalysts prepared with the carriers heated in an atmosphere of nitrogen.

REFERENCES:
patent: 3787384 (1974-01-01), Stevens et al.
patent: 4148754 (1979-04-01), Strobel et al.
patent: 4173547 (1979-11-01), Graff
patent: 4247669 (1981-01-01), Reginato et al.
patent: 4263171 (1981-04-01), Shida et al.
patent: 4376061 (1983-03-01), Swift et al.
patent: 4481301 (1984-11-01), Nowlin et al.

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