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Polymer composition and molded articles shaped of the same

A composition and polymer technology, applied in botany equipment and methods, animal repellent, rayon manufacturing, etc., can solve the problems such as the inability to maintain the escape rate, and achieve the effect of preventing the decrease of the escape rate

Inactive Publication Date: 2012-09-05
SUMITOMO CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, molded articles formed from polymer compositions comprising a supersaturated amount of active compound in the polymer allow a significant amount of active compound to escape early in its use and thus cannot maintain the rate of escape over the required time period

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] (1) Preparation of releasable active compound carrier

[0062]Permethrin (Eksmin® manufactured by Sumitomo Chemical Company, Limited), which is an insect control agent, was used as a releasable active compound. 2,6-di-tert-butyl-4-methylphenol (hereinafter referred to as AO-1) (1.5 parts by weight) was dissolved in permethrin (51 parts by weight) as an antioxidant. Next, a mixture (52.5 parts by weight) of permethrin and AO-1 was stirred, and mixed with amorphous silica (Porous Silica manufactured by Suzuki-Oil Co., Ltd.) (47.5 parts by weight) as a carrier. parts by weight) (ie 93.1 parts by weight per 100 parts by weight permethrin) to obtain a releasable active compound carrier.

[0063] (2) Preparation of polymer composition

[0064] As the olefin-based polymer, high-density polyethylene (HI-ZEX® 440M manufactured by PRIME POLYMER; MFR = 0.9 g / 10 min.; density = 948 kg / m 3 ) of particles (100 parts by weight) and high-pressure low-density polyethylene (Sumikathen...

Embodiment 2

[0094] Example 2 Monofilaments were produced in the same manner as in Example 1, except that glyceryl distearate was used instead of ethyl myristate in the preparation of the compound containing the releasable active compound. The amount of permethrin escaping from the monofilament was measured. The results are shown in Table 1. The HLB value of this glyceryl distearate was 3.4.

[0095] Table 1

[0096] low molecular weight components Cumulative escape amount of permethrin in 28 days (μg / g) Example 1 ethyl myristate 284 Comparative example 1 Zinc stearate 128 Comparative example 2 myristic acid 107 Comparative example 3 Palmitic acid 129 Comparative example 4 stearic acid 120 Comparative example 5 behenic acid 143 Comparative example 6 Glyceryl monostearate 155 Example 2 Glyceryl distearate 260

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Abstract

The present invention relates to a polymer composition comprising 100 parts by weight of an olefin-based polymer, and 0.01 to 100 parts by weight of an ester having a HLB value of 4 or less and 0.01 to 200 parts by weight of a releasable active compound per 100 parts by weight of said olefin-based polymer.

Description

technical field [0001] The present invention relates to polymer compositions and moldings formed from the polymer compositions. Background technique [0002] A polymer composition containing an active compound such as an insecticide in a polymer, and a molded article formed from the polymer composition have hitherto been known, and have been used in a wide range of fields because they can be obtained at a relatively low cost Molded products of various shapes. These moldings exert their function by allowing the active compound to evaporate, or bleeding the active compound to the surface of the molding to thereby release the active compound, so-called bleeding (see Patent Publication 1). [0003] When active compounds with low evaporation are used, such compounds are hardly released from the moldings as a result of their evaporation and are therefore released from them mainly by escape. Escape occurs when the amount of active compound exceeds the saturated amount (supersatur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/02C08J5/00C08K5/00D01F6/04
CPCA01N25/10A01N25/34A47C29/006C08K5/0016C08K5/0058C08K5/10C08L23/06D01F1/10D01F6/04C08L2205/025C08L2207/062C08L2207/066A01N53/00A01N25/30C08L23/02C08J5/00C08K5/00
Inventor 山越静人
Owner SUMITOMO CHEM CO LTD