Plasticizer for biodegradable resin

A biodegradable and plasticizer technology, applied in the field of plasticizers for biodegradable resins and biodegradable resin compositions, can solve problems such as insufficient flexibility, easy whitening, and inability to use

Inactive Publication Date: 2006-12-06
KAO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current status of the application of polylactic acid resin is that due to its brittleness, hardness, and lack of flex resistance, it is limited in the field of hard molded products; when it is formed into a film, etc., due to insufficient flexibility , easy whitening when bending, etc., cannot be applied to soft and semi-rigid fields

Method used

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  • Plasticizer for biodegradable resin
  • Plasticizer for biodegradable resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～2 and comparative example 1～3

[0051] As a biodegradable resin, 100 parts by weight of polylactic acid resin (trade name レイイシア (LACEA) H-400 produced by Mitsui Chemicals Co., Ltd.) obtained after vacuum drying at 50°C for 24 hours, and as shown in Table 1 The composition formed by 15 parts by weight of the plasticizer was kneaded for 10 minutes with a laboratory plasticizer (manufactured by Toyo Seiki Co., Ltd.) at 180°C, and then a press molding machine with a thickness of 0.5mm was produced using a press molding machine at 190°C. test piece.

[0052] The prepared test pieces were evaluated for volatility resistance, flexibility, transparency and bleed resistance by the following methods. The results are shown in Table 1.

[0053]

[0054] Using a differential calorimeter, the temperature of the plasticizer was raised from room temperature to 300° C. (5° C. / minute) in a nitrogen atmosphere, and the temperature at which the weight decreased by 10% was measured. The processing temperature of polylactic a...

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Abstract

The present invention relates to a plasticizer for biodegradable resin, which contains a compound represented by the following formula (1): wherein at least one of R 1 , R 2 and R 3 is an acyl group derived from a carboxylic acid selected from an aliphatic hydroxycarboxylic acid and an acetylated aliphatic hydroxycarboxylic acid, and the remainder(s) is an acetyl group, a biodegradable resin composition containing biodegradable resin and the plasticizer.

Description

technical field [0001] The present invention relates to a plasticizer for biodegradable resin and a biodegradable resin composition. Background technique [0002] Petroleum-based general-purpose resins such as polyethylene, polypropylene, polyvinyl chloride, and polystyrene have properties such as light weight, good processability, physical properties, and durability, so they can be used in daily miscellaneous goods, home appliances, and automotive parts. , construction materials or food packaging and other fields. However, when these resin products are discarded after fulfilling their functions, their good durability becomes a disadvantage, and their degradability in nature is poor, so there may be an impact on the ecosystem. [0003] In order to solve such problems, polylactic acid and copolymers of lactic acid and other aliphatic hydroxycarboxylic acids, polylactic acid derived from aliphatic polyhydric alcohols and aliphatic polycarboxylic acids have been developed as t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/09C08L67/04C08L101/16
CPCC08K5/103
Inventor 浜口刚吏森厚人
Owner KAO CORP
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