Title:
POLYOLEFIN COMPOSITION FOR ROTOMOLDING
Document Type and Number:
WIPO Patent Application WO2002070602
Kind Code:
A8
Abstract:
A polymer composition suitable for rotomoulding comprising I) An ethylene homopolymer or copolymer with at least one other C3-10 alpha olefin, having a melt flow rate of 0.5 to 30, a molecular weight distribution (Mw/Mn) of less than 4, an Mw of 50,000 to 110,000, a density of 0.940 g/cm<3> to 0.970 g/cm<3> and a melting point of 100 to 145 °C; or I) a propylene homopolymer or copolymer with at least one other C2-10 alpha olefin, having a melt flow rate of 0.5 to 30, a molecular weight distribution (Mw/Mn) of less than 4, an Mw of 150,000 to 300,000, and a melting point of 100 to 170 °C; and II) an ethylene homo or copolymer with at least one other C3-10 alpha-olefin, having a melt flow rate of within 40 % of the melt flow rate of component (I), a molecular weight distribution of (Mw/Mn) of less than 4, an Mw of within 30 % of the Mw of component (I), a density of 0.880 g/cm<3> to 0.940 g/cm<3> said density being at least 0.010 g/cm<3> less than the density of component (I) and a melting point of at least 5 °C less than that of component (I); or II) a propylene homo or copolymer with at least one other C2-10 alpha-olefin having a melt flow rate of within 40 % of the melt flow rate of component (I), a molecular weight distribution of (Mw/Mn) of less than 4, an Mw of within 30 % of the Mw of component (I), and a melting point of at least 10 °C less than that of component (I).
Inventors:
FOLLESTAD ARILD (NO)
OMMUNDSEN ESPEN (NO)
FOSSE KNUT (NO)
OMMUNDSEN ESPEN (NO)
FOSSE KNUT (NO)
Application Number:
PCT/GB2002/000904
Publication Date:
October 16, 2003
Filing Date:
March 01, 2002
Export Citation:
Assignee:
BOREALIS TECH OY (FI)
FOLLESTAD ARILD (NO)
OMMUNDSEN ESPEN (NO)
FOSSE KNUT (NO)
FOLLESTAD ARILD (NO)
OMMUNDSEN ESPEN (NO)
FOSSE KNUT (NO)
International Classes:
C08L23/08; C08L23/10; (IPC1-7): C08L23/10; C08L23/16
Download PDF: