C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
403/78
C08L 23/10 (2006.01) C08J 3/24 (2006.01) C08J 9/00 (2006.01) C08J 9/06 (2006.01) C08L 23/14 (2006.01)
Patent
CA 1269494
Abstract of the Disclosure: A heat-foamable crosslinked propylene resin composition in the form of a melt-shaped sheet structure comprising [1] 100 parts by weight of a crosslinked propyl- ene resin composition obtained by mixing at least four components composed of (A) a propylene resin, (B) an olefin resin other than the resin (A), (C) a radical initiator and (D) a crosslinking agent, and [2] 0.5 to 5 parts by weight of a blowing agent; wherein (a) the propylene resin (A) is in an amount of 60 to 95 parts by weight per 100 parts by weight of the resins (A) and (B) combined, and has a melt flow rate (MFR) of 0.1 to 50 g/10 min., and (b) the alpha-olefin resin (B) is in an amount of S to 40 parts by weight per 100 parts by weight of the resins (A) and (B) combined, and is selected from the group consisting of a propylene random copolymer resin (B1) composed of 55 to 85 mole% of propylene and 15 to 45 mole% of an alpha-olefin with 4 to 20 carbon atoms and having an amount of heat of crystal fusion of 25 to 70 joules/g and a melt flow rate (MFR) of 0.05 to 20 g/10 min. and a l-butene polymer or a l-butene random copolymer resin (B2) composed of 70 to 100 mole% of l-butene and 0 to 30 mole% of an alpha-olefin having 2, 3 or 5 to 20 carbon atoms and having an amount of heat of crystal fusion of 20 to 70 joules/g and a melt flow rate (MFR) of 0.05 to 50 g/10 min., and a process for producing the same.
500067
Hashimoto Takashi
Sasaki Zenichi
Kirby Eades Gale Baker
Mitsui Chemicals Incorporated
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