公开(公告)号：US3773734A

公开(公告)日：1973-11-20

申请号：US3773734D

申请日：1970-11-06

Applicant: SNAM PROGETTI

Inventor： CUCINELLA S ,  MAZZEI A

IPC: C08F210/00 ,  C08F15/04

CPC classification number: C08F210/00

Abstract: NOVEL HIGH MOLECULAR WEIGHT ETHYLENE AND A-OLEFIN COPOLYMERS ARE DISCLOSED WHICH ARE AMORPHOUS AT AN ETHYLENE MOLE CONTENT OF UP TO 85% AND ARE CRYSTALLIZABLE WHEN STRETCHED. THE INDUCTION OF STRETCH CRYSTALLINITY INCREASES WITH THE TENSILE STRESS AND MAKES THE COPOLYMERS PARTICULARLY USEFUL IN THE ELASTIC FIBERS FIELD.

公开(公告)号：US3845027A

公开(公告)日：1974-10-29

申请号：US30114672

申请日：1972-10-26

Applicant: SNAM PROGETTI

Inventor： CUCINELLA S ,  MAZZEI A

IPC: C08F4/00 ,  C08F4/60 ,  C08F4/68 ,  C08F210/00 ,  C08F236/00 ,  C08F236/04 ,  C08F236/06 ,  C08D3/04 ,  C08F15/04

CPC classification number: C08F236/04 ,  C08F210/00 ,  C08F210/02 ,  C08F236/06 ,  C08F4/68

Abstract: 1. A PROCESS FOR PREPARING ETHYLENE-BUTADIENE COPOLYMERS, SAID PROCESS COMPRISING COPOLYMERIZING ETHYLENE AND BUTADIENE IN THE PRESENCE OF AN INERT SOLVENT, AT A PRESSURE RANGING FROM 1 TO 150 ATMOSPHERES, AT A TEMPERATURE RANGING FROM -30* TO 100* C. AND IN THE PRESENCE OF A CATALYTIC SYSTEM COMPRISING. (A) AN OXYGEN CONTAINING ORGANIC VANADIUM COMPOUND HAVING V-O-C BONDS SELECTED FROM THE GROUP CONSISTING OF OV(OR3, V(OR)4 AND V(OR)3 WHEREIN R IS AN ALKYL, ARYL OR CYCLOALKYL RADICAL; (B) AN ALUMINUM COMPOUND HAVING THE FORMULA ALR''XX3-X WHEREIN R'' IS AN ALKYL, ARYL CYCLOALKYL RADICAL, OR HYDROGEN ATOM, X IS A HALOGEN ATOM AND WHEREIN 1

公开(公告)号：US3711455A

公开(公告)日：1973-01-16

申请号：US3711455D

申请日：1970-09-24

Applicant: SNAM PROGETTI

Inventor： CUCINELLA S ,  MAZZEI A

IPC: C08F4/00 ,  C08F4/60 ,  C08F210/00 ,  C08F236/00 ,  C08F236/04 ,  C08F1/42 ,  C08F15/04

CPC classification number: C08F236/04 ,  C08F4/68

Abstract: A HIGH MOLECULAR WEIGHT COPOLYMER WHICH EXHIBITS CRYSTALLINITY AND IS CROSSLINKABLE BY CURING IS PRODUCED BY REACTING A MONOOLEFIN AND A DIOLEFIN IN THE PRESENCE OF A CATALYST SYSTEM CONSISTING OF (A) A VANADIUM COMPOUND OF THE TYPE V(NR2)4 OR V(NR2)2X2 WHEREIN R MAY BE AN ALKYL, ARYL OR CYCLOALKYL RADICAL AND X MAY BE A HALOGEN, AND (B) AN ALUMINUM COMPOUND OF THE TYPE ALRXX3-X WHEREIN R MAY BE AN ALKYL, ARYL OR

CYCLOALKYL RADICAL OR HDROGEN AND X MAY BE A HALOGEN, WHEREIN 1$X$2.