公开(公告)号：US3789036A

公开(公告)日：1974-01-29

申请号：US3789036D

申请日：1971-10-12

Applicant: MONTEDISON SPA

Inventor： LONGI P ,  CAMELI N ,  CERVI R ,  VALVASSORI A ,  PARODI S

IPC: C08F4/02 ,  C08F210/16 ,  C08F15/04 ,  C08F15/40

CPC classification number: C08F210/16 ,  C08F4/022 ,  Y10S526/906 ,  C08F4/6543 ,  C08F4/657 ,  C08F4/695

Abstract: THERE IS DISCLOSED A PROCESS FOR COPOLYMERIZING ETHYLENE AND/OR HIGHER ALPHA-OLEFINS TO ELASTOMERIC SATURATED COPOLYMERS, OR FOR COPOLYMERIZING AT LEAST ONE OF ETHYLENE AND HIGHER ALPHA-OLEFINS WITH HYDROCARBONS CONTAINING MORE THAN ONE DOUBLE BOND TO ELASTOMERIC UNSATURATED, SULFUR-VULCANIZABLE COPOLYMERS IN VERY HIGH YIELDS. THE CATALYST USED IS OBTAINED BY MIXING (A) A HYDRICE OR ORGANOMETALLIC COMPOUND OF A METAL BELONGING TO GROUPS I TO III OF THE MENDELYEEV PERIODIC TABLE WITH (B) THE PRODUCT OBTAINED BY CONTACTING A TITANIUM COMPOUND WITH A SUPPORT CONSISTING OF AN ANHYDROUS HALIDE OF MAGNESIUM, MANGANESE OR CALCIUM IN AN ACTIVE CONDITION.

公开(公告)号：US3850842A

公开(公告)日：1974-11-26

申请号：US28471272

申请日：1972-08-30

Applicant: MONTEDISON SPA

Inventor： LONGI P ,  GIANNINI U ,  MAZZOCCHI R

IPC: C08F4/02 ,  C08F10/00 ,  B01J11/84

CPC classification number: C08F10/00 ,  C08F4/022 ,  C08F4/6543 ,  C08F4/6425

Abstract: 1. A CATALYST FOR THE POLYMERIZATION OF OLEFINS AND CONSISTING ESSENTIALLY OF THE PRODUCT BY MIXING (A) A CATALYST-FORMING COMPONENT WHICH IS SELECTED FROM THE GROUP CONSISTING OF

A1(C2H5)3, A1(C2H5),C1, A1(IC4H9)3, A1(IC4H9)2C1, SP A12(C2H5)3C12, A1(C2H5)2H, A1(IC4H9)2H,

A1(C2H5)2BR, LIA1(IC4H9)4 AND LIIC4H9, SP WITH (B) A CATALYST-FORMING COMPONENT OBTAINED BY CONTACTING (1) A TITANIUM COMPOUND HAVING THE GENERAL FORMULA

M2TIXN+2

IN WHICH M IS AN ALKALI METAL, THE SUBSTITUENTS XN ARE HALOGEN ATOMS AND N IS THE VALENCE OF THE TITANIUM, WITH (2) A SUPPORT CONSISTING OF AN ACTIVE ANHYDROUS MAGNESIUM DIHALIDE CHARACTERIZED IN THAT, IN ITS X-RAYS SPECTRUM THE REFLEXTION WHICH IS MOST INTENSE IN THE X-RAYS SPECTRUM OF THE NORMAL, INACTIVE MAGNESIUM DIHALIDE IS MARKEDLY DECREASED IN INTENSITY, AND IN THAT IT HAS A SURFACE AREA GREATER THAN 3 M.2/G.

公开(公告)号：US3840634A

公开(公告)日：1974-10-08

申请号：US24973472

申请日：1972-05-02

Applicant: MONTEDISON SPA ,  CONSIGLIO NAZIONALE RICERCHE

Inventor： LONGI P ,  GRECO F ,  CHIOLLE A ,  CREDALI L ,  D ANGELO R

IPC: C08F14/00 ,  C08F14/08 ,  C08F20/00 ,  C08F20/42 ,  C08F26/06 ,  C08F214/08 ,  C08J5/22 ,  B29D7/08 ,  C08F29/22

CPC classification number: C08J5/2243 ,  C08F26/06 ,  C08J2327/08 ,  C08J2339/08

Abstract: 1. A METHOD FOR PREPARING A MEMBRANE THAT IS SELECTIVELY PERMEABLE TO ANIONS, THIS METHOD COMPRISING: (A) CASTING ONTO A SUPPORT SURFACE, AN ORGANIC SOLVENT SOLUTION OF A MIXTURE OF (1) A LINEAR, HOMOGENEOUS COPOLYMER OF VINYLIDENE CHLORIDE AND A VINYL HETEROCYCLIC COMPOUND OF THE GENERAL FORMULA

RN-Z-CH=CH2

WHEREIN Z REPRESENTS A PYRIDINE, QUINOLINE OR PIPERIDINE NUCLEUS; R REPRESENTS AN ALKYL GROUP HAVING FROM 1 TO 10 CARBON ATOMS; AND N IS 0, 1 OR 2 AND (2) A (C) EFFECTING CROSSLINKING OF THE MEMBRANE BY HEATING AT A TEMPERATURE ABOVE 80*C.; AND (D) QUATERNIZING AT LEAST A PORTION OF THE NITROGEN ATOMS BY TREATING THE CROSSLINKED MEMBRANE WITH A QUATERNIZING AGENT.

公开(公告)号：US3813354A

公开(公告)日：1974-05-28

申请号：US26906172

申请日：1972-07-05

Applicant: MONTEDISON SPA

Inventor： D ANGELO R ,  LONGI P ,  GRECO F ,  CHIOLLE A ,  CREDALI L

IPC: B01J47/12 ,  C08F214/08 ,  C08F220/42 ,  C08F228/02 ,  C08J5/22 ,  C08F15/02 ,  C08F15/40

CPC classification number: B01J47/12 ,  C08F214/08 ,  C08F220/42 ,  C08F228/02 ,  C08J5/22 ,  C08J5/2231 ,  C08J2309/02 ,  C08J2327/08

Abstract: ALKENYLSULFONATE COPOLYMERS, WHICH, ON HEATING, UNDERGO SELF-CROSS-LINKING, AND WHEN SO CROSS-LINKED, CAN BE FORMED INTO CATION PERMOSELECTIVE MEMBRANES, SAID COPOLYMERS COMPRISING, IN CHEMICALLY COMBINED FORM: AN ALKENYLSULFONATE, VINYLIDENE CHLORIDE AND/OR A-CHLOROACRYLONITRILE, AND OPTIONALLY, AT LEAST ONE OTHER COPOLYMERIZABLE MONOMER CONTAINING A CH2=C