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Biodegradable wax composition

A biodegradable and wax composition technology, applied in the direction of rubber layered products, layered products, chemical instruments and methods, etc., can solve the problems of unavailable biodegradable compositions, natural environment, working environment, etc.

Inactive Publication Date: 2010-09-22
KAO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the method using a solvent, in addition to problems such as odor and safety due to residual solvents in intermediate products and final products, there is a problem of adverse effects on the natural environment, working environment, etc. due to the use of a large amount of solvent
[0008] Thus, a melt-formable biodegradable composition with sufficiently high moisture resistance, and a biodegradable composition with high adhesiveness and sufficiently high moisture resistance have not been obtained so far.

Method used

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  • Biodegradable wax composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-1

[0113] Microcrystalline wax (manufactured by Nippon Seiwa Co., Ltd., product model: Hi-Mic-1070, complete melting temperature 86° C., main peak temperature 44° C.) was frozen and crushed to less than 10 mm with a pulverizer. Isoprene rubber (manufactured by Japan Zeon Co., Ltd., product model: Nipol-IR2200) is cut into a size that is easy to put into the device.

[0114] Using a pressure kneader (DS.DX75 type) manufactured by Moriyama Co., Ltd., 41.5 kg of the above-mentioned isoprene rubber was charged into the kneading container of the pressure kneader. Then, 12.5 kg of the above-mentioned microcrystalline wax was divided into 10 parts, and each part was in the range of 2% to 6% relative to the total amount of the above-mentioned isoprene rubber, and then fed in batches. When adding wax in batches, after each addition, perform kneading without pressure for about 0.5 minutes, and then perform kneading under pressure for 1.5 minutes or 2 minutes. During the kneading, cooling ...

Embodiment 2-1

[0121] need.

Embodiment 3-1

[0124] Microcrystalline wax (manufactured by Nippon Seiwa Co., Ltd., product model: Hi-Mic-1070, complete melting temperature 86° C., main peak temperature 44° C.) was frozen and crushed to less than 10 mm with a pulverizer. And isoprene rubber (produced by Japan Zeon Co., Ltd., product model: Nipol-IR2200) is cut into a size that is easy to put into the device.

[0125] The input amount to the pressurized kneader in the masterbatch preparation process is calculated based on 80% of the capacity of the kneading vessel, a specific gravity of 0.9, 100 parts by weight of isoprene rubber, and 30 parts by weight of microcrystalline wax.

[0126] Input amount = 75 (volume of pressurized kneader: L) × 0.8 (input capacity) × 0.9 (specific gravity)

[0127] Use the pressurized kneader (DS.DX75 type) produced by (Co., Ltd.) Moriyama, drop into the kneading vessel of pressurized kneader 41.5kg (100 parts by weight) isoprene rubber (produced by Japan Zeon Co., Ltd., product Model: Nipol-I...

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Abstract

A biodegradable wax composition which comprises a wax as the base, contains a biodegradable polymer and a filler, and has a moisture permeability as measured at 40 DEG C and 90% RH of 3 g.mm / m<2>.24hr or lower. The content of the wax is preferably 65 to 95 wt.%. The biodegradable polymer preferably has a weight-average molecular weight of 200,000 or higher. The polymer preferably is polyisoprene or natural rubber and is contained in an amount of preferably 5 to 35 wt.%.

Description

technical field [0001] The present invention relates to a method for producing a wax-based composition, a biodegradable wax composition, and a biodegradable laminate. Background technique [0002] Conventionally, as a method of obtaining a wax-based composition such as a moisture-proof paint, a method of mechanically mixing the components of the composition in a molten state (for example, refer to the following Patent Document 1) and a method of mixing using a wax emulsion have been mainly used. method (for example, refer to the following Patent Document 2). [0003] However, the above method has the following problems. In the method of mechanical mixing in the molten state, since the viscosity of the wax in the molten state is low, when it is mixed with a solid or high-viscosity substance, it is difficult to apply sufficient shear force to these mixtures, so it is difficult to achieve each The state in which the components are evenly dispersed. In the method using a wax ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L91/06C08J3/22B32B7/04B32B25/04C08K3/00C08L101/16
Inventor 小田嶋信吾一色信之大塚仁史大贺英俊后藤实
Owner KAO CORP