Extrusion rheology of thermoplastic polymer as manifested by surface smoothness is improved by incorporating foam cell nucleating agents into the polymer and extruding the polymer under laminar flow to form unfoamed extrudate.
申请公布号
WO9737828(A1)
申请公布日期
1997.10.16
申请号
WO1997US06016
申请日期
1997.04.04
申请人
E.I. DU PONT DE NEMOURS AND COMPANY
发明人
BUCKMASTER, MARLIN, DWIGHT;HENRY, DONALD, LEONIDAS;RANDA, STUART, KARL
