A copolymer of ethylene and a higher alpha-olefin having broadened melt processing windows and reduced melt fracture can be produced using a chromium-containing catalyst system and a trialkyl boron cocatalyst. The polymerization process must be carefully controlled to produce a copolymer resin that easily can be made into articles of manufacture.</SDOAB >
申请公布号
CA2231388(C)
申请公布日期
2004.09.21
申请号
CA19982231388
申请日期
1998.03.09
申请人
PHILLIPS PETROLEUM COMPANY
发明人
BERGMEISTER, JOSEPH JOHN;HSIEH, ERIC TSU-YIN;STEWART, JOHN DALE;SECORA, STEVEN JOSEPH;SHVEIMA, JOSEPH SAMUEL;BOBSEIN, REX LEO;SUKHADIA, ASHISH M.;GUENTHER, GERHARD KURT;MCDANIEL, MAX PAUL;BENHAM, ELIZABETH ANN