C - Chemistry – Metallurgy – 09 – J
Patent
C - Chemistry, Metallurgy
09
J
154/40, 400/6574
C09J 123/16 (2006.01) B32B 27/32 (2006.01) C08L 23/14 (2006.01) C08L 23/16 (2006.01) C08L 23/18 (2006.01) C08L 23/20 (2006.01) C09J 123/18 (2006.01)
Patent
CA 1282519
Abstract of the Disclosure: A crystalline random propylene copolymer composi- tion comprising (i) a crystalline random propylene copolymer comprising 99 to 85 mole% of propylene and 1 to 15 mole% of an alpha-olefin other than propylene and (ii) a random 1-butene copolymer comprising 1-butene and an alpha-olefin having at least 5 carbon atoms, the weight ratio of the copolymer (i) to the copolymer (ii) being in the range of from 5:95 to 90:10, said random 1-butene copolymer (ii) satisfying the following conditions: (A) it comprises 50 to 99 mle% of the 1-butene component and 1 to 50 mole% of the alpha-olefin, (B) it has an intrinsic viscosity [?], measured in decalin at 135°C, of from 0.5 to 6 dl/g, (C) it has a melting point [Tm], measured by a differential scanning calorimeter, of from 30 to 120°C, (D) it has a crystallinity, measured by X-ray diffractometry, of from 5 to 60%, (E) the amount [W1 in % by weight] of that portion of it which is soluble in boiling methyl acetate is not more than 2%, and (F) the amount [W2 in % by weight] of that portion of it which is soluble in a 1:1 by volume mixture of acetone and n-decane at 10°C is less than 5 x [?]-1-2.
494343
Fukui Kunisuke
Kashiwa Norio
Kohyama Masaki
Muranaka Takeshi
Mitsui Chemicals Incorporated
Smart & Biggar
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