公开(公告)号：ES2030018T3

公开(公告)日：1992-10-16

申请号：ES87108679

申请日：1987-06-16

Applicant: PHILLIPS PETROLEUM COMPANY

Inventor： MCDANIEL, MAX PAUL ,  KLENDWORTH, DOUGLAS DEAN ,  NORWOOD, DONALD DWIGHT ,  HSIEH, ERIC TSU-YIN ,  BOGGS, ELIZABETH ANN

IPC: C08F4/60 ,  C08F4/62 ,  C08F4/69 ,  C08F10/00 ,  C08F10/02 ,  C08F110/02

Abstract: The catalyst system is produced by first forming a chromium catalyst on a predominantly silica support, activating in an oxygen-containing ambient and thereafter subjecting the thus activated composition to carbon monoxide reduction. The resulting reduced supported chromium catalyst composition is then precontacted with a cocatalyst selected from trialkyl boron compounds and dialkyl aluminum alkoxide compounds, preferably triethyl borane and thereafter contacted with ethylene. This results in a catalyst system which produces comonomer in situ so as to give tough, flexible ethylene copolymers from an essentially pure ethylene feed.

公开(公告)号：EP0363750A3

公开(公告)日：1991-08-07

申请号：EP89118017

申请日：1989-09-28

Applicant: PHILLIPS PETROLEUM COMPANY

Inventor： MCDANIEL, MAX PAUL ,  PITZER, EMORY WILLIAM ,  FARHA, FLOYD E., JR.

IPC: C01F7/02 ,  C01B25/36 ,  C08F4/02 ,  C08F4/24 ,  C08F4/60 ,  C08F4/69 ,  C08F10/00 ,  C08F4/22 ,  C08F4/78

CPC classification number: C08F10/00 ,  C08F4/02 ,  C08F4/22 ,  C08F4/78

Abstract: Fine, pure, boehmite alumina crystallites are peptized, partially precipitated and phosphated, hardened, and dried to form a xerogel. The alumina can be impregnated with a chromium compound. The chromium- containing catalyst is activated by calcination. The activated catalyst can be used as a polymerization catalyst to polymerize mono-1-olefins.

公开(公告)号：EP0361363A3

公开(公告)日：1991-08-07

申请号：EP89117681

申请日：1989-09-25

Applicant: PHILLIPS PETROLEUM COMPANY

Inventor： BENHAM, ELIZABETH ANN ,  MCDANIEL, MAX PAUL ,  BAILEY, FAY WALLACE

IPC: C08F4/658 ,  C08F2/14 ,  C08F4/60 ,  C08F4/623 ,  C08F10/00 ,  C08F10/02 ,  C08F110/02 ,  C08F210/02 ,  C08F210/16

CPC classification number: C08F10/00 ,  C08F110/02 ,  C08F210/16 ,  C08F4/69 ,  C08F2500/10 ,  C08F2500/08 ,  C08F2500/12 ,  C08F210/14 ,  C08F2500/26 ,  C08F210/08 ,  C08F4/025

Abstract: A copolymer of ethylene and a higher alpha-olefin, preferably 1-hexene and/or 4-methyl-1-pentene, can be produced using an activated and subsequently carbon monoxide reduced chromium containing catalyst and a trialkyl boran cocatalyst. The polymerization process must be carefully controlled to produce a copolymer resin that can be made into a tough, impact resistant film.