Patent ID: 11884799
Assignee: TOSOH CORPORATION
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  A  B | IPC A  B  C

Claim 0:
1. A polyethylene resin composition comprising from 50 to 89 parts by weight of a linear low density polyethylene (A) which satisfies following requirements (a) to (c), from 10 to 40 parts by weight of a high density polyethylene (B) which satisfies following requirements (d) to (f), and from 1 to 20 parts by weight of a high pressure low density polyethylene (C) which satisfies following requirements (g) to (i) (the total amount of (A), (B) and (C) is 100 parts by weight), and the polyethylene resin composition satisfying following requirement (j) wherein melt mass flow rate (MFR) is measured in accordance with JIS K6922-1 at 190° C. under a load of 21.18N:
(a): density is from 890 to 920 kg/m3,
(b): MFR is from 3.0 to 15 g/10 min,
(c): a ratio of weight average molecular weight (Mw) to number average molecular weight (Mn) (Mw/Mn) is from 2.0 to 3.0,
(d): density is from 935 to 970 kg/m3,
(e): MFR is from 3.0 to 15 g/10 min,
(f): a ratio of weight average molecular weight (Mw) to number average molecular weight (Mn) (Mw/Mn) is from 2.0 to 3.0,
(g): density is from 910 to 930 kg/m3,
(h): MFR is from 0.1 to 1.0 g/10 min,
(i): melt strength is from 200 to 400 mN,
(j): MFR is from 3.0 to 9.0 g/10 min.