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1. (WO2001032758) PROPYLENE COPOLYMER FOAMS AND THEIR USE

Pub. No.:    WO/2001/032758    International Application No.:    PCT/US2000/030011
Publication Date: Fri May 11 01:59:59 CEST 2001 International Filing Date: Wed Nov 01 00:59:59 CET 2000
IPC: C08F 10/06
C08F 110/06
C08F 210/06
C08J 9/14
C08L 23/12
C08L 23/14
C08L 23/16
Applicants: EXXON CHEMICAL PATENTS INC.
Inventors: AGARWAL, Pawan, Kumar
MEHTA, Aspy, K.
Title: PROPYLENE COPOLYMER FOAMS AND THEIR USE
Abstract:
This invention relates generally to foamable crystalline propylene polymers obtained from metallocene catalysis and to their methods of production. The foamed crystalline propylene polymers have molecular weight distributions and densities that fall within broad ranges. The crystalline propylene polymers may be prepared in a multiple stage polymerization process using a combination of metallocene components in at least two stages.