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Resin composition

一种树脂组合物、聚烯烃树脂的技术，应用在合成树脂层状产品、运输和包装、化学仪器和方法等方向，能够解决低透明度等问题

Inactive Publication Date: 2008-05-07
THE NIPPON SYNTHETIC CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, by the technique disclosed in JP-A-8-311254, a certain improvement effect related to long-term formability such as suppression of defective products etc. is achieved, but it is clarified that using a highly transparent laminated material as regrind Causes lower clarity, thereby preventing the production of products that maintain the same level of clarity as virgin laminates, and regrinding of laminates containing colorants leads to possible accumulation of colorants in the regrind layer

Method used

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  • Resin composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0095] LDPE ["LF440B" manufactured by Japan Polychem Corporation, MFR 2.8g / 10min (190°C, 2160g load), density 0.925g / cm 3 ](A), 0.44MgO Mg(C 17 h 35 COO) 2 ["EM-144" manufactured by Eishin Kasei KK] (B), saponification product of ethylene-vinyl acetate copolymer ["MeltheneH6051" manufactured by Tosoh Corporation, ethylene content 89 mol%, saponification of vinyl acetate component The density is 100mol%, MFR is 5.5g / 10min (210 ℃, 2160g loading)] (C) and hydrotalcite solid solution ["ZHT4" produced by Kyowa Chemical Industry Co., Ltd., Mg 3 ZnAl 2 (OH) 12 CO 3 ·3H 2 O, the average particle size is 0.4 μm] (D) melt mixing at a weight ratio of A:B:C:D=70:10:15:5 to obtain the resin composition of the present invention.

[0096] Separately, EVOH [ethylene content is 32 mol%, degree of saponification is 99.6 mol%, MFR3.5g / 10min (210 ℃, load 2160g), boric acid containing 0.03 wt% based on boron weight], thermoplastic resin [polypropylene, composed of "AMOCO3143" manufactured ...

Embodiment 2

[0144] Except that "Melthene H6960" manufactured by Tosoh Corporation [ethylene content 82 mol%, saponification degree of vinyl acetate component 90 mol%, MFR 40 g / 10 min (210°C, 2160 g load)] was used as ethylene-vinyl acetate copolymer Except for the saponified product (C), the resin composition of the present invention was obtained in the same manner as in Example 1, and similar evaluations were carried out.

Embodiment 3

[0146] In addition to using "FY6C" [PP manufactured by Japan Polychem Corporation, MFR is 2.4g / 10min (190°C, 2160g load), density is 0.90g / cm 3 ] (A) instead of LDPE (A), the same method as in Example 1 was used to obtain the resin composition of the present invention, and a similar evaluation was performed.

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Abstract

The present invention provides a resin composition containing a polyolefin resin (A), a metal soap (B), a saponified product (C), and a hydrotalcite compound and / or a hydrotalcite solid solution (D). The resin composition shows superior long-run formability (surface smoothness, suppression of fish eye, pigment dispersibility), suppressive effect on die build-up and superior transparency and gas barrier property when added to a regrind layer during formation of a laminate having the regrind layer. Therefore, the composition is highly useful as an additive for collected materials (regrind) for forming various laminates.

Description

technical field [0001] The present invention relates to a resin composition for recycling waste, etc., of a laminate having a layer of thermoplastic resin such as polyolefin resin and a saponified resin containing ethylene-vinyl acetate copolymer The product acts as a layer of regrind (collected material). More specifically, the present invention relates to a resin composition that can improve various long-term moldability when added to a regrind layer during recycling. Background technique [0002] Various shaped products are conventionally obtained by melt molding a mixture of a polyolefin resin such as polyethylene and a thermoplastic resin represented by polypropylene and a saponified product of ethylene-vinyl acetate copolymer (hereinafter sometimes abbreviated as EVOH). The purpose of this technology is divided into two major aspects: (1) to achieve performance that cannot be provided by a single resin and (2) to reuse (return or regrind) the collected waste and to co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08L23/00B32B27/30C08K3/22C08K3/26C08K5/09C08K5/098C08L23/06C08L29/04
CPCC08L23/08C08L23/06B32B27/30C08L23/0861Y10T428/31855C08L2666/04C08L2666/06C08K3/22C08K5/09C08L23/00
Inventor 大西英史寒川真至
Owner THE NIPPON SYNTHETIC CHEM IND CO LTD
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