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Resin composition, molded product, and method for producing the resin composition

A technology for resin compositions and molded products, applied in the field of preparing the resin compositions, can solve problems such as insufficient attention to flame retardancy or preservation characteristics, and achieve the effect of satisfying flame retardancy and preservation characteristics

Inactive Publication Date: 2007-02-14
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Molded articles formed of biodegradable resins proposed so far are presupposed to be mainly used for films or packaging materials without paying enough attention to flame retardancy or preservation characteristics

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0075] In the production method by melt kneading, the flame retardant and the hydrolysis inhibitor are added or mixed before melting the biodegradable organic high molecular compound or while melting the biodegradable organic high molecular compound. The flame retardant and the hydrolysis inhibitor may be added separately or simultaneously. If the flame retardant and hydrolysis inhibitor are added separately, either of them may be initially added. In an alternative method, the biodegradable organic polymer compound is melted and thereafter the flame retardant or hydrolysis inhibitor is added and mixed. The resulting composition was remelted together and the remaining one of the hydrolysis inhibitor and flame retardant was added and mixed.

[0076] Other suitable additives may be used in the resin composition of the present embodiment to improve its properties as long as the addition does not contradict the purpose of the present invention. In addition to reinforcing material...

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Abstract

A biodegradable resin composition comprising at least one biodegradable organic polymeric compound, a flame retardant additive containing a phosphorous compound, and a hydrolysis inhibitor capable of inhibiting the hydrolysis of at least one organic polymeric compound. As an aliphatic polyester resin, use is made of polylactic acid, polycaprolactone, polyhydroxybutyric acid, polyhydroxyvaleric acid, polyethylene succinate, polybutylene succinate, polybutylene adipate, polymalic acid, microbially synthesized polyester or a copolymer containing at least one of these. As a polysaccharide, use is made of cellulose, starch, chitin, chitosan, dextran, a derivative of any of these or a copolymer containing at least one of these.

Description

technical field [0001] The present invention relates to a biodegradable resin composition, molded articles and electrical articles prepared from the resin composition, and to a method for preparing the resin composition. [0002] The present application contains subject matter related to Japanese Patent Applications Nos. 2003-403475, 2003-403476 and 2003-403477 filed in the Japan Patent Office on Dec. 2, 2003, the entire contents of which are hereby incorporated by reference. Background technique [0003] Recently, various synthetic resin materials have been developed and marketed, and are used in increasing amounts in many industrial fields. As a result, the amount of discarded synthetic resin has increased, and its disposal has become a serious social problem. If directly incinerated, the discarded resin generates toxic gas or damages an incinerator due to significant combustion heat, thereby imposing a serious burden on the environment. [0004] Among known processing m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L101/00C08K3/00C08K3/28C08K3/32C08K5/16C08K5/49C08L101/16C08K3/20
Inventor 堀江毅山田心一郎藤平裕子森浩之野口勉
Owner SONY CORP
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