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Degradation promoter of biodegradable resin molded body, and use thereof

A resin molded body and a technology for degrading resin, applied in the field of degradation accelerators, can solve the problems of insufficient research on the degradation rate technology, and achieve the effects of rapid spontaneous degradation, accelerated degradation, and accelerated biodegradation

Inactive Publication Date: 2012-12-12
KOBAYASHI PHARMA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although it is important to increase the degradation rate to reduce the burden on the environment as much as possible for disposal of waste materials in landfills and the like, a technique for improving the degradation rate of biodegradable resin molded articles containing such degradation agents not yet fully researched

Method used

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  • Degradation promoter of biodegradable resin molded body, and use thereof
  • Degradation promoter of biodegradable resin molded body, and use thereof
  • Degradation promoter of biodegradable resin molded body, and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] Example 1 : Preparation of biodegradable product (disposable heating bag)

[0082] 1. Preparation of functional composition (heat generating composition)

[0083] 1% by mass of potassium chloride, 55% by mass of iron powder with an average particle size of 50 μm, 13% by mass of activated carbon with an average particle size of 200 μm, 26% by mass of water, and 3% by mass of iron powder with an average particle size of 100 μm Vermiculite and 2% by mass of cross-linked partial sodium salt of acrylic acid polymer with a particle size of 380 μm were mixed to prepare a heat-generating composition.

[0084] 2. Preparation of resin molded body (inner bag material of disposable heating bag)

[0085] A resin sheet composed of 98% by mass of polyethylene and 2% by mass of a material containing an oxidative degradation agent is brought into contact with a rotating roll comprising a row of disk-shaped members to prepare a Paper and Board - Air Permeability Test - Gurley Method ...

Embodiment 2

[0089] Example 2 : Preparation of biodegradable product (disposable heating bag)

[0090] A disposable heating bag was prepared under the same conditions as in Example 1, except that 1% by mass of sodium chloride was used instead of 1% by mass of potassium chloride.

Embodiment 3 and 4

[0097] Examples 3 and 4 : Biodegradable products (products containing non-heat generating compositions)

[0098] 2.2% by mass of potassium chloride, 28.9% by mass of activated carbon with an average particle size of 200 μm, 57.8% by mass of water, 6.7% by mass of vermiculite with an average particle size of 100 μm, and 4.4% by mass of acrylic acid with a particle size of 380 μm The cross-linked partial sodium salt of the polymer is mixed to prepare a non-exothermic composition (functional composition). 20 g of the obtained non-heat-generating composition was charged into the same inner bag (biodegradable resin molded body) as used in Example 1 to prepare a product containing the non-heat-generating composition (Example 3).

[0099] Another product (Example 4) containing a non-exothermic composition was prepared under the same conditions as in Example 3, except that 2.2 mass % of sodium chloride was used instead of 2.2 mass % of potassium chloride.

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Abstract

Disclosed is a technique for increasing biodegradation speed in nature of a biodegradable resin molded body containing an oxidative degradation agent by means of promoting the degradation of said biodegradable resin molded body. The degradation speed of said biodegradable resin molded body is increased markedly by means of causing a state wherein said biodegradable resin molded body and a chloride salt are caused to coexist during disposal processing of the biodegradable resin molded body containing an oxidative degradation agent.

Description

technical field [0001] The present invention relates to a degradation accelerator for a biodegradable resin molded body containing an oxidative degradation agent, wherein the degradation accelerator is capable of accelerating the degradation of the biodegradable resin molded body. The present invention also relates to biodegradable products having excellent biodegradability. Furthermore, the present invention relates to a method for degrading a biodegradable resin molded body containing an oxidative degradation agent, which can efficiently degrade the biodegradable resin molded body. Background technique [0002] Resin molded articles made of petroleum-based resins such as polyethylene, polypropylene, and polystyrene are used in various fields such as fiber products, packaging films, electrical appliances, and industrial materials; they are essential to modern society. However, these resin molded products are used in large quantities and discarded; the disposal of these pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L101/00C08J11/16C08J11/22C08J11/24C08J11/26C08K3/10C08K3/16C08K5/07C08K5/09C08L23/00C08L101/16
CPCC08K3/16C08K3/0025C08L101/16C08K3/012C08J11/16C08J11/22C08J11/24C08J11/26C08K3/10C08K5/07C08K5/09C08L23/00C08L101/00
Inventor 松尾笃士
Owner KOBAYASHI PHARMA CO LTD