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POLYOLEFIN COMPOSITION FOR ROOFING APPLICATIONS
A polyolefin composition made from or containing:(A) 18-35% by weight of a copolymer of propylene with an alpha-olefin, wherein the copolymer contains 2.0-4.0% by weight of the alpha-olefin and has a melt flow rate (MFRA) ranging from 30 to 60 g/10 min; and(B) 65-82% by weight of a copolymer of propylene with an alpha-olefin, and optionally a diene, wherein the copolymer is made from or containing 20-35% by weight of the alpha-olefin, whereinthe polyolefin composition is made from or containing a fraction that is soluble in xylene at 25° C. (XS(tot)) in an amount higher than 70% by weight;the amounts of (A), (B), and the fraction soluble in xylene at 25° C. (XS(tot)) are based on the total weight of the polyolefin composition; andthe melt flow rate (MFR) of the polyolefin composition ranges from 0.2 to 2.0 g/10 min.
POLYOLEFIN COMPOSITION FOR ROOFING APPLICATIONS
A polyolefin composition made from or containing:(A) 18-35% by weight of a copolymer of propylene with an alpha-olefin, wherein the copolymer contains 2.0-4.0% by weight of the alpha-olefin and has a melt flow rate (MFRA) ranging from 30 to 60 g/10 min; and(B) 65-82% by weight of a copolymer of propylene with an alpha-olefin, and optionally a diene, wherein the copolymer is made from or containing 20-35% by weight of the alpha-olefin, whereinthe polyolefin composition is made from or containing a fraction that is soluble in xylene at 25° C. (XS(tot)) in an amount higher than 70% by weight;the amounts of (A), (B), and the fraction soluble in xylene at 25° C. (XS(tot)) are based on the total weight of the polyolefin composition; andthe melt flow rate (MFR) of the polyolefin composition ranges from 0.2 to 2.0 g/10 min.
POLYOLEFIN COMPOSITION FOR ROOFING APPLICATIONS
GRAZZI MICHELE (author) / CAVALIERI CLAUDIO (author)
2023-08-24
Patent
Electronic Resource
English
IPC:
C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
,
Massen auf Basis makromolekularer Verbindungen
/
C08F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
E04D
ROOF COVERINGS
,
Dacheindeckungen
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