Menetelmä stereosäännöllisten polymeerien valmistamiseksi, joilla on ahtaissa rajoissa oleva molekyylipainojakautuma

• Main Authors: BRADY,III, ROBERT CONVERSE, LIU,HAN TAI, NOSHAY,ALLEN, STAKEM,FRANCIS GREGORY
• Format: Patent
• Language: Finnish; Swedish
• Published: 10.01.1995
• Edition: 5
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

Stereoregular polymers having a molecular weight distribution of less than 5.0 and an isotactic index in excess of 96 percent are produced by polymerizing an alpha-olefin having 3 to 8 carbon atoms in a low pressure gas phase fluid bed process at a temperature in excess of 80 DEG C employing a heat...