公开(公告)号：KR810001876B1

公开(公告)日：1981-11-19

申请号：KR780003584

申请日：1978-11-28

Applicant: STANDARD OIL CO

Inventor： FOTIS P ,  MELQUIST J ,  HOFF G

IPC: C08F10/00

Abstract: Olefins were polymd. by conveying an inactive high-yield Ti catalyst component to a vapor-phase polymn. reactor with a liq. comprising recycled quench liq., reactivating the Ti catalyst component inside the reactor with a metal alkyl reducing agent, and polymg. the olefin under gas-phase polymn. conditions with the reactivated catalyst to form a polyolefin having a low level of catalyst residue.

公开(公告)号：US3819599A

公开(公告)日：1974-06-25

申请号：US25831972

申请日：1972-05-31

Applicant: STANDARD OIL CO

Inventor： FOTIS P ,  BOONE D

IPC: C08F10/00 ,  C08F1/56 ,  C08F3/06

CPC classification number: C08F10/00 ,  C08F4/6355

Abstract: AN IMPROVED METHOD OF PREPARING A SUPPORTED CATAYST AND PROCESS FOR THE USE THEREOF FOR POLYMERIZATION OF ETHYLENE, TERMINAL OLEFINS OR A MIXTURE THEREOF THAT GIVES HIGH POLYMER YIELDS AND IMPROVED MOLECULAR WEIGHT CONTROL WHEN USED IN CONJUCTION WITH CHAIN TERMINATING AENTS WHICH COMPRISES CONTACTING SAID OLEFIN OR SAID MIXTURE WITH (A) A GROUP IV-B OR GROUP V-B TRANSITION METAL COMPOUND IN COMBINATION WITH A SUPPORT MATERIAL WHICH IS THE REACTION PRODUCT OF AN ALUMINUM HALIDE AND A GROUP II-1, II-B OR VII-B HYDROXYHAIDE, ALKOXIDE, HYDROXIDE-ALKOXIDE, HYDROUS OXIDE, HYDRATED OXIDE OR HYDROXIDE AND (B) A ORGANOALUMINUM COMPOUND.

公开(公告)号：BR7807718A

公开(公告)日：1979-07-31

申请号：BR7807718

申请日：1978-11-23

Applicant: STANDARD OIL CO

Inventor： MELQUIST J ,  HOFF G ,  FOTIS P

IPC: B01J8/10 ,  B01J8/36 ,  B01J8/38 ,  B01J19/18 ,  C08F2/00 ,  C08F2/34 ,  C08F4/00 ,  C08F4/60 ,  C08F4/64 ,  C08F10/00 ,  C08F4/62

Abstract: Vapor phase polymerization of an olefin which comprises conveying inactive high yield titanium catalyst component to a vapor phase polymerization reactor with a liquid comprising recycled quench liquid, reactivating said inactive high yield titanium catalyst component inside the reactor with a metal alkyl reducing agent and polymerizing olefin under gas phase polymerization conditions with reactivated high yield catalyst to form a resinous polymer of an olefin having a low level of catalyst residues.

公开(公告)号：DK511976A

公开(公告)日：1977-05-15

申请号：DK511976

申请日：1976-11-12

Applicant: STANDARD OIL CO

Inventor： HOFF G R ,  FOTIS P

IPC: C08F4/00 ,  C08F4/60 ,  C08F10/00 ,  C08F

公开(公告)号：IN150336B

公开(公告)日：1982-09-11

申请号：IN788DE1978

申请日：1978-11-02

Applicant: STANDARD OIL CO

Inventor： HOFF G ,  MELQUIST J ,  FOTIS P

IPC: B01J8/10 ,  B01J8/36 ,  B01J8/38 ,  B01J19/18 ,  C08F2/00 ,  C08F2/34 ,  C08F4/00 ,  C08F4/60 ,  C08F4/64 ,  C08F10/00 ,  C08F1/28 ,  C08F3/02 ,  C08F3/04 ,  C08F3/08

Abstract: Vapor phase polymerization of an olefin which comprises conveying inactive high yield titanium catalyst component to a vapor phase polymerization reactor with a liquid comprising recycled quench liquid, reactivating said inactive high yield titanium catalyst component inside the reactor with a metal alkyl reducing agent and polymerizing olefin under gas phase polymerization conditions with reactivated high yield catalyst to form a resinous polymer of an olefin having a low level of catalyst residues.