JP2008138102A5 - - Google Patents
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- JP2008138102A5 JP2008138102A5 JP2006326578A JP2006326578A JP2008138102A5 JP 2008138102 A5 JP2008138102 A5 JP 2008138102A5 JP 2006326578 A JP2006326578 A JP 2006326578A JP 2006326578 A JP2006326578 A JP 2006326578A JP 2008138102 A5 JP2008138102 A5 JP 2008138102A5
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- JP
- Japan
- Prior art keywords
- polylactic acid
- resin composition
- block copolymer
- based resin
- composition according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Description
本発明は、上記課題を解決するために、次のような手段を採用するものである。すなわち、本発明のポリ乳酸系組成物は、ポリ乳酸（Ａ）とポリ乳酸系ブロック共重合体（Ｂ）を含有してなる樹脂組成物であって、前記樹脂組成物が、前記ポリ乳酸系ブロック共重合体（Ｂ）を１５〜６０重量％含有し、かつ、後述する方法により測定される該樹脂組成物の酸価が６０［当量／ｔ］以下であり、かつ、後述する方法により測定されるメルトボリュームフローレート（ＭＶＲ）が１０［ｃｍ３／１０ｍｉｎ］以下であることを特徴とするものである。 In order to solve the above problems, the present invention employs the following means. That is, the polylactic acid-based composition of the present invention is a resin composition containing polylactic acid (A) and a polylactic acid-based block copolymer (B), and the resin composition is the polylactic acid-based composition. The block copolymer (B) is contained by 15 to 60% by weight, and the acid value of the resin composition measured by the method described later is 60 [equivalent / t] or less, and measured by the method described later. melt volume flow rate (MVR), which is is characterized in that it is 10 [cm 3 / 10min] or less.
該ペレットを用いて、上吹きインフレーション製膜を行ったところ製膜性は良好であり、得られたフィルムの経時安定性も良好であった。
〔比較例３〕
Ｌ−ラクチドとポリエチレングリコール（分子量１００００）に触媒を用いて、ブロック共重合体（Ｂ）を合成した。合成終了後、触媒失活剤として、リン酸を０．１５重量％添加し、攪拌したのち、脱揮によりモノマー（ラクチド）を除去した。
When the top blown inflation film was formed using the pellet, the film forming property was good, and the stability of the resulting film was good.
[ Comparative Example 3 ]
A block copolymer (B) was synthesized using a catalyst for L-lactide and polyethylene glycol (molecular weight 10,000). After completion of the synthesis, 0.15% by weight of phosphoric acid was added as a catalyst deactivator and stirred, and then the monomer (lactide) was removed by devolatilization.
Claims (4)
前記樹脂組成物が、前記ポリ乳酸系ブロック共重合体（Ｂ）を１５〜６０重量％含有し、
かつ、明細書にて定義される方法により測定される該樹脂組成物の酸価が６０［当量／ｔ］以下であり、かつ、ＪＩＳ−Ｋ７２１０に準拠して測定されるメルトボリュームフローレート（ＭＶＲ）が１０［ｃｍ３／１０ｍｉｎ］以下であることを特徴とするポリ乳酸系樹脂組成物。 A resin composition comprising a polylactic acid (A) and a polylactic acid block copolymer (B),
The resin composition contains 15 to 60% by weight of the polylactic acid block copolymer (B),
And the acid value of this resin composition measured by the method defined in the specification is 60 [equivalent / t] or less, and the melt volume flow rate (MVR) measured according to JIS-K7210. ) is 10 [cm 3 / 10min] polylactic acid-based resin composition being not more than.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006326578A JP2008138102A (en) | 2006-12-04 | 2006-12-04 | Polylactic acid-based resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006326578A JP2008138102A (en) | 2006-12-04 | 2006-12-04 | Polylactic acid-based resin composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2008138102A JP2008138102A (en) | 2008-06-19 |
| JP2008138102A5 true JP2008138102A5 (en) | 2010-01-21 |
Family
ID=39599922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006326578A Pending JP2008138102A (en) | 2006-12-04 | 2006-12-04 | Polylactic acid-based resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2008138102A (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10259083A (en) * | 1997-03-17 | 1998-09-29 | Dainippon Ink & Chem Inc | Production of slow-acting capsule fertilizer |
| JPH10259296A (en) * | 1997-03-21 | 1998-09-29 | Kuraray Co Ltd | Polyester excellent in heat stability |
| JP2001054941A (en) * | 1999-08-19 | 2001-02-27 | Dainippon Ink & Chem Inc | Lactic acid polymer laminate for card |
| JP3723157B2 (en) * | 2002-07-12 | 2005-12-07 | トヨタ自動車株式会社 | Polylactic acid polymer composition |
| JP4411522B2 (en) * | 2003-01-30 | 2010-02-10 | Ｄｉｃ株式会社 | Polylactic acid composition |
| JP5067825B2 (en) * | 2003-10-24 | 2012-11-07 | 東レ株式会社 | Molded article made of polylactic acid polymer and plasticizer for polylactic acid |
-
2006
- 2006-12-04 JP JP2006326578A patent/JP2008138102A/en active Pending
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