Nucleator masterbatch for polyolefin resin

一种聚烯烃树脂、成核剂母料的技术，应用在聚烯烃树脂组合物领域，能够解决不能表现出添加效果、分散性不充分、相容性不充分等问题，达到提高透明性和机械物性、相容性优异、耐热着色性优异的效果

Inactive Publication Date: 2010-08-04
ADEKA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the nucleating agents disclosed in Patent Documents 10 to 14 have problems in that they cannot exhibit the desired addition effect due to insufficient compatibility with the crystalline polymer and insufficient dispersibility in the crystalline polymer.

Method used

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  • Nucleator masterbatch for polyolefin resin
  • Nucleator masterbatch for polyolefin resin
  • Nucleator masterbatch for polyolefin resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-1

[0113] Add 100 parts by mass of homopolypropylene resin (melt index 8-9), 0.1 part by mass of phenolic antioxidant tetrakis[methylene-3-(3',5'-di-tert-butyl-4'-hydroxyphenyl ) propionate] methane, 0.1 mass part of phosphorus antioxidant tris (2,4-di-tert-butylphenyl) phosphite, 0.05 mass part of calcium stearate, and the aromatic phosphate metal salt compound composition (Component (B)) was added in an amount of 0.1 parts by mass to the masterbatch (MB-1) prepared in advance according to the formulation shown in the above Table 1, mixed with a Henschel mixer at 1100 rpm for 5 minutes, and then heated at 250°C and 160 rpm Extrusion processing under certain conditions to produce pellets. The pellets were injection molded at 230° C. to obtain a test piece having a thickness of 1 mm, and the haze value (JIS K7105) and flexural modulus (ASTMD-790) of the test piece were evaluated. The results are shown in Table 4 below.

Embodiment 2-1～2-3 and comparative example 2-1～2-5

[0117] Add 100 parts by mass of homopolypropylene resin (melt index 8 to 10), 0.1 part by mass of phenolic antioxidant tetrakis[methylene-3-(3',5'-di-tert-butyl-4'-hydroxyphenyl ) propionate] methane, 0.1 mass part of phosphorus antioxidant tris (2,4-di-tert-butylphenyl) phosphite, 0.05 mass part of calcium stearate, and the aromatic phosphate metal salt compound composition ((B) Component) was added in an amount of 0.2 parts by mass to the masterbatch types shown in the following Table 5, mixed with a Henschel mixer at 1100rpm for 5 minutes, and extruded at 250°C and 160rpm. Make pellets. The pellets were injection molded at 230° C. to obtain a test piece having a thickness of 1 mm, and the haze value, flexural modulus and Y.I. of the test piece were evaluated (yellowness index: measured by a color difference meter manufactured by Suga Test Instruments Co., Ltd.) . The results are collectively shown in Table 5 below.

Embodiment 3-1～3-2 and comparative example 3-1

[0119] Add 100 parts by mass of homopolypropylene resin (melt index 7-8), 0.1 part by mass of phenolic antioxidant tetrakis[methylene-3-(3',5'-di-tert-butyl-4'-hydroxyphenyl ) propionate] methane, 0.1 mass part of phosphorus antioxidant tris (2,4-di-tert-butylphenyl) phosphite, 0.05 mass part of calcium stearate, and the aromatic phosphate metal salt compound composition ((B) Component) was added in an amount of 0.2 parts by mass to the masterbatch types shown in the following Table 6, mixed with a Henschel mixer at 1100 rpm for 5 minutes, and extruded at 250°C and 160 rpm to produce particles. A test piece having a thickness of 1 mm was obtained by injection molding at 230° C. using the pellets, and the haze value and flexural modulus of the test piece were evaluated. The results are collectively shown in Table 6 below.

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Abstract

Disclosed is a nucleator masterbatch for polyolefin resins, which is excellent in dispersibility in polyolefin resins and resistance to thermal coloration. This nucleator masterbatch for polyolefin resins enables to improve transparency and mechanical strength of a polyolefin resin which is a crystalline polymer. Also disclosed is a polyolefin resin composition using such a nucleator masterbatch for polyolefin resins. Specifically disclosed is a nucleator masterbatch for polyolefin resins, which is characterized by being obtained by adding 3-150 parts by mass of an aromatic metal phosphate salt (B) represented by the general formula (1) below to 100 parts by mass of a completely hydrogenated petroleum resin (A) having a softening point of not less than 100 DEG C.

Description

technical field [0001] The present invention relates to a masterbatch of a nucleating agent for polyolefin resins and a polyolefin resin composition using the same (hereinafter also simply referred to as "masterbatch" and "resin composition"). A nucleating agent masterbatch for polyolefin resins excellent in dispersibility and excellent in improving the transparency and mechanical strength of polyolefin resins, and a polyolefin resin composition using the same. Background technique [0002] Crystalline polymers of polyolefin resins such as polyethylene, polypropylene, and poly1-butene have slow crystallization rates after thermoforming, so there are problems such as long molding cycles during processing, and crystallization continues after molding , sometimes resulting in deformation of the molded object. In addition, these crystalline polymers generate large crystals during thermoforming, and thus have disadvantages such as insufficient strength and poor transparency of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/22C08K5/527C08L23/00C08L57/00
CPCC08L23/08C08J2323/10C08J3/226C08L2310/00C08L51/06C08L23/12C08L23/06C08J2457/00C08K5/0083C08L23/14C08J2323/04C08K5/527C08L2666/06C08L2666/24
Inventor 丹治直子清水伴纪福岛充
Owner ADEKA CORP
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