公开(公告)号：GB784970A

公开(公告)日：1957-10-23

申请号：GB3457855

申请日：1955-12-02

Applicant: STANDARD OIL CO

Inventor： FIELD EDMUND ,  FELLER MORRIS

IPC: C08F10/00

Abstract: Catalysts for the polymerization of normally gaseous n-alkenes comprise an alkali metal hydride or a non-radioactive alkaline earth metal hydride together with an oxide or a salt of an oxyacid of a Group 5A metal. The 5A metal compounds disclosed are vanadium, niobium and tantalum pentoxides and cobalt, chromium, magnesium, calcium, zinc, copper and nickel salts of vanadic, niobic and tantalic acids. The details are otherwise as described in Specification 748,583 (see also Group IV (a)).ALSO:Normally gaseous n-alkenes are polymerized with an alkali metal hydride or a non-radioactive alkaline earth metal hydride together with an oxide or a salt of an oxy acid of a Group 5A metal. Alkenes specified are ethylene, propylene and 1-butene, and hydrogen, methane, ethane, propane and butane may also be present. Copolymerizable monomers which may be included are iso-butylene, t-butylethylene, tetrafluoroethylene, styrene and butadiene. Group 5A metal compounds described are vanadium, niobium and tantalum pentoxides and cobalt, chromium, magnesium, calcium, zinc, copper and nickel salts of vanadic, niobic and tantalic acids. The process is otherwise as described in Specification 748,583.

公开(公告)号：CA542275A

公开(公告)日：1957-06-11

申请号：CA542275D

Applicant: STANDARD OIL CO

Inventor： FELLER MORRIS ,  FIELD EDMUND

公开(公告)号：CA601031A

公开(公告)日：1960-07-05

申请号：CA601031D

Applicant: STANDARD OIL CO

Inventor： FELLER MORRIS ,  FIELD EDMUND

公开(公告)号：GB810572A

公开(公告)日：1959-03-18

申请号：GB3436856

申请日：1956-11-09

Applicant: STANDARD OIL CO

Inventor： FELLER MORRIS ,  FIELD EDMUND

IPC: C08F10/00

Abstract: Catalysts used in the polymerization of ethylene (see Group IV (a)) comprise an alkali metal or an alkaline earth metal, and a Group 5A metal oxide which has been activated by partial reduction and which is preferably supported on a difficultly reducible metal oxide such as silica, alumina, titania, zirconia or a clay. The 5A metal oxide may be V2O5, Nb2O5 or Ta2O5 and these may be pre-reduce (e.g. in the presence of the support and the metal) with materials such as hydrogen, carbon monoxide, sulphur dioxide, hydrogen sulphide; sodium, calcium or lithium aluminium hydride; and hydrocarbons such as acetylene, methane, benzene toluene, xylenes, polymethylenes, polyethylenes and paraffin waxes. The catalyst may be treated from time to time with solvents to remove polymer, following which the catalyst may be reactivated or regenerated with materials such as water, ammonium salts, dilute acids, oxygen, permolybdic, pervanadic or pertungstic acids and hydrogen. The polymerization is preferably conducted in an inert medium, preferably benzene, toluene, xylenes or "Decalin" or "Tetralin" (Registered Trade Marks). Specifications 753,349 and 776,326 are referred to.ALSO:Ethylene is polymerized by contacting with an alkali metal or an alkaline earth metal, and a Group Va metal oxide which has been activated by partial reduction and which is preferably supported on a difficulty reducible metal oxide such as silica, alumina, titania, zirconia or a clay. Other monomers and inert gases which may be included in the gas stream are propylene, n-butylenes, isobutylene, t-butylethylene, acetylene, butadiene, isoprene, methane, ethane, propane and hydrogen. The Va metal oxide may be V2O5, Nb2O5 or Ta2O5 and these may be pre-reduced with materials such as hydrogen, carbon monoxide, sulphur dioxide, hydrogen sulphide; sodium, calcium or lithium aluminium hydride; and hydrocarbons such as acetylene, methane, benzene, toluene, xylenes, polymethylenes, polyethylenes and paraffin waxes. The polymerization may be in bulk in the gas phase, with catalyst being treated from time to time with solvents to remove polymer-followed by reactivation or regeneration of said catalyst, or may be in a liquid hydrocarbon medium (preferably purified before use) of which many aliphatic and aromatic examples are specified, preferred media being benzene, toluene, xylenes, "Decalins" (Registered Trade Mark) and "Tetralins" (Registered Trade Mark). The process may be continuous or batchwise with intermittent repressurization of ethylene, and suitable space velocities and contact times are given. Polymerization is preferably in the absence of oxygen, carbon dioxide, water and sulphur compounds, but the presence of hydrogen is used to eliminate the induction period. Comparison is made with polymerizations in the absence of the metal promoter. The products range from greases and waxes to highmolecular weight materials and may be mixed with antioxidants, stabilizers, fillers, extenders, plasticisers, pigments, insecticides, fungicides, polyethylenes, polybutylenes, hydrocarbon oils, xylene and paraffin, petrolatum and ester waxes. The polymers may be extruded, milled, filmed, cast, halogenated, halogenated then dehalogenated, sulphohalogenated, sulphonated, converted to sponges or latices, and subjected to ionizing radiation. Applications specified are as coating materials, gas barriers and binders. Specifications 753,349 and 776,326 are referred to.

公开(公告)号：CA563245A

公开(公告)日：1958-09-16

申请号：CA563245D

Applicant: STANDARD OIL CO

Inventor： FIELD EDMUND ,  FELLER MORRIS

公开(公告)号：CA551741A

公开(公告)日：1958-01-14

申请号：CA551741D

Applicant: STANDARD OIL CO

Inventor： FIELD EDMOND ,  FELLER MORRIS

公开(公告)号：GB783744A

公开(公告)日：1957-09-25

申请号：GB3457755

申请日：1955-12-02

Applicant: STANDARD OIL CO

Inventor： FIELD EDMUND ,  FELLER MORRIS

IPC: C08F10/00

Abstract: Polymerization catalysts comprise an oxide of a Group 5A metal and a metal aluminium hydride or metal borohydride, e.g. those of lithium, sodium, potassium, rubidium, caesium, beryllium, magnesium, calcium, strontium, barium, thorium, hafnium, titanium, zirconium and uranium. The oxides specified are those of vanadium, niobium and tantalum and their complexes with oxides of cobalt, chromium, magnesium, calcium, zinc, nickel and copper. The polymerization process (see Group IV (a)) is otherwise as described in Specification 748,583.ALSO:Normally gaseous n-alkenes are polymerized by contacting with metal aluminium hydrides or metal borohydrides which react with water to produce hydrogen, together with a solid catalyst comprising an oxide of a Group 5A metal. Alkenes specified are ethylene, propylene, 1-butene and mixtures with each other or with iso-butylene, t-butylethylene, tetrafluoroethylene, styrene or butadiene. The hydrides and borohydrides used may be those of lithium, sodium, potassium, rubidium, caesium, beryllium, magnesium, calcium, strontium, barium, thorium, hafnium, titanium, zirconium and uranium. The oxides specified are those of vanadium, niobium and tantalum and their complexes with oxides of cobalt, chromium, magnesium, calcium, zinc, nickel and copper. The process, products and compositions thereof are otherwise as described in Specification 748,583.

公开(公告)号：CA541999A

公开(公告)日：1957-06-04

申请号：CA541999D

Applicant: STANDARD OIL CO

Inventor： FIELD EDMUND ,  FELLER MORRIS