JP2006176748A5

JP2006176748A5 -

Info

Publication number: JP2006176748A5
Application number: JP2005130969A
Authority: JP
Filing date: 2005-04-28
Publication date: 2007-10-25
Anticipated expiration: 2025-04-28

Description

実施例１〜５及び比較例１〜３
合成例１〜５及び比較合成例１〜３で得られた可塑剤の分子量、及び下記の方法で評価した耐揮発性の結果を表１に示す。
また、合成例１〜５及び比較合成例１〜３で得られた可塑剤を用い、５０℃で２４時間真空乾燥した結晶性ポリ乳酸樹脂（三井化学（株）製レイシア（ＬＡＣＥＡ）Ｈ−４００）１００重量部、可塑剤１５重量部からなる組成物を、１８０℃の混練機（東洋精機社製、“ラボプラストミル”）にて１０分間混練し、１９０℃のプレス成形機にて厚さ０．５ｍｍのテストピースを作成した。得られたテストピースについて下記の方法で柔軟性、透明性及び耐ブリード性を評価した。これらの結果も表１に示す。
なお、実施例２及び５は参考例である。 Examples 1-5 and Comparative Examples 1-3
Table 1 shows the molecular weights of the plasticizers obtained in Synthesis Examples 1 to 5 and Comparative Synthesis Examples 1 to 3, and the volatile resistance results evaluated by the following method.
In addition, a crystalline polylactic acid resin (LACEA H-400 manufactured by Mitsui Chemicals, Inc.) was vacuum-dried at 50 ° C. for 24 hours using the plasticizers obtained in Synthesis Examples 1-5 and Comparative Synthesis Examples 1-3. ) A composition consisting of 100 parts by weight and 15 parts by weight of a plasticizer was kneaded for 10 minutes in a 180 ° C. kneader (Toyo Seiki Co., Ltd., “Lab Plast Mill”), and the thickness was measured using a 190 ° C. press molding machine A test piece of 0.5 mm was prepared. The obtained test pieces were evaluated for flexibility, transparency and bleed resistance by the following methods. These results are also shown in Table 1.
Examples 2 and 5 are reference examples.

Claims

A plasticizer for a biodegradable resin containing a compound represented by the general formula (1).
^{_{R 1 O (EO) m -CORCOO-}} (EO) n R 2 (1)
(Wherein R ¹ and R ² represent a linear alkyl group having 1 to 2 carbon atoms, R represents a linear or branched alkylene group having 1 to 3 carbon atoms, and R ¹ and R ² may be the same or different. EO is an oxyethylene group, m and n are the average number of moles of ethylene oxide added, and 0 ≦ m ≦ 5, 0 ≦ n ≦ 5, and 6 ≦ m + n ≦ 8.)