# US 2017/0253733 A1 · Polyolefin resin composition, molding, and polyolefin resin film

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- Number: US 2017/0253733 A1
- Document ID: US20170253733A1
- Status: Published application
- Kind: A1
- Application number: 15/506,405
- Filed: 2015-08-18
- Published: 2017-09-07
- Earliest claimed: 2014-08-29
- Assignees: National University Corporation Kanazawa University; Sumitomo Seika Chemicals Co., Ltd.
- Applicants: National University Corporation Kanaza University; Sumitomo Seika Chemicals Co., Ltd.
- Inventors: Koh-hei NITTA; Makiko NAKAHARA; Miho MAE; Kiyoshi NISHIOKA; Nobutaka FUJIMOTO; Masahiro SUZUKI
- Web page: https://patentgrep.com/patent/US20170253733A1

## CPC

- C08L 23/12: Polypropene
- C08J 5/18: Manufacture of films or sheets
- C08K 5/00: Use of organic ingredients
- C08L 23/02: not modified by chemical after-treatment
- C08L 69/00: Compositions of polycarbonates; Compositions of derivatives of polycarbonates
- C08J 2323/06: Polyethene
- C08J 2323/12: Polypropene
- C08J 2469/00: Characterised by the use of polycarbonates; Derivatives of polycarbonates
- C08L 2203/16: used for films
- C08L 2207/062: HDPE
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29)
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)

## Abstract

The present invention provides a polyolefin-based resin composition that has improved resilience while maintaining mechanical strength and stretching properties, as well as a molded article and a polyolefin-based resin film formed from this composition. The polyolefin-based resin composition comprises a polyolefin-based resin, a polyalkylene carbonate resin, and an ionic liquid. The polyolefin-based resin film of the present invention is formed by molding the polyolefin-based resin composition and is stretched at least in a monoaxial direction.

## Claims

### Claim 1

A polyolefin-based resin composition, comprising a polyolefin-based resin, a polyalkylene carbonate resin, and an ionic liquid.

### Claim 2 (depends on 1)

The polyolefin-based resin composition according to claim 1, wherein the polyalkylene carbonate resin is polypropylene carbonate.

### Claim 3 (depends on 1)

The polyolefin-based resin composition according to claim 1, wherein the ionic liquid is a salt comprising a combination of a cation selected from the group consisting of ammonium ion, pyridinium ion, pyrrolidinium ion, pyrrolinium ion, oxazolium ion, oxazolinium ion, imidazolium ion, thiazolium ion and phosphonium ion, and an anion selected from the group consisting of halogen ions, phosphate ion, nitrate ion, sulfate ion, bisulfate ion, sulfonate ion, tosylate ion, perchlorate ion, aluminate ion, dialuminate ion, borate ion, amide ion, dicyanamide ion, succinate ion, thiocyanate ion, and carboxylate ion.

### Claim 4 (depends on 1)

The polyolefin-based resin composition according to claim 1, wherein the polyolefin-based resin composition comprises 0.05 to 20 parts by mass of polyalkylene carbonate resin, and 0.01 to 5 parts by mass of ionic liquid, per 100 parts by mass of polyolefin-based resin.

### Claim 5 (depends on 1)

The polyolefin-based resin composition according to claim 1, wherein the polyolefin-based resin is polypropylene or polyethylene.

### Claim 6 (depends on 1)

The polyolefin-based resin composition according to claim 1, wherein the polyolefin-based resin is polypropylene.

### Claim 7 (depends on 1)

A molded article formed by molding the polyolefin-based resin composition according to claim 1.

### Claim 8 (depends on 1)

A polyolefin-based resin film formed by molding the polyolefin-based resin composition according to claim 1, wherein the polyolefin-based resin film is stretched at least in a monoaxial direction.

### Claim 9 (depends on 8)

The polyolefin-based resin film according to claim 8, wherein the stretching magnification when the polyolefin-based resin film is stretched in the monoaxial direction is 1.01 to 20.0.