JP2003342459A5 - - Google Patents

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JP2003342459A5
JP2003342459A5 JP2003023308A JP2003023308A JP2003342459A5 JP 2003342459 A5 JP2003342459 A5 JP 2003342459A5 JP 2003023308 A JP2003023308 A JP 2003023308A JP 2003023308 A JP2003023308 A JP 2003023308A JP 2003342459 A5 JP2003342459 A5 JP 2003342459A5
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resin
weight
parts
polyacetal
ester
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JP2003023308A
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JP4306262B2 (en
JP2003342459A (en
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【特許請求の範囲】
【請求項1】 ポリ乳酸樹脂、ポリアセタール樹脂ならびに、芳香族ジカルボン酸またはそのエステル形成性誘導体と脂肪族ジオールまたはそのエステル形成性誘導体を主成分として重縮合してなる重合体、テレフタル酸またはそのエステル形成性誘導体とブタンジオールまたはそのエステル形成性誘導体を主成分として重縮合してなる重合体、脂肪族ポリエステルカーボネート、ポリヒドロキシアルカノエート、コハク酸、アジピン酸およびそれらのエステル形成性誘導体から選択される一種以上のジカルボン酸と、ブタンジオール、エチレングリコールおよびそれらのエステル形成性誘導体から選択される一種以上のジオールを、主成分として重縮合してなる重合体から選ばれる熱可塑性ポリエステル樹脂を含有してなることを特徴とする樹脂組成物。
【請求項2】 前記ポリ乳酸樹脂およびポリアセタール樹脂の合計を100重量部としたときに、前記ポリ乳酸樹脂の含有量が99重量部以下50重量部以上であることを特徴とする請求項1に記載の樹脂組成物。
【請求項3】 前記ポリ乳酸樹脂およびポリアセタール樹脂の合計を100重量部としたときに、前記ポリアセタール樹脂の含有量が99重量部以下50重量部超であることを特徴とする請求項1に記載の樹脂組成物。
【請求項4】 前記ポリ乳酸樹脂およびポリアセタール樹脂の合計を100重量部としたときに、前記熱可塑性ポリエステル樹脂の含有量が100重量部以下1重量部以上であることを特徴とする請求項1〜3のいずれか1項に記載の樹脂組成物。
【請求項5】 樹脂組成物中のポリ乳酸樹脂とポリアセタール樹脂が相溶化していることを特徴とする請求項1〜4のいずれか1項に記載の樹脂組成物。
【請求項6】 樹脂組成物のポリアセタール樹脂由来の降温時の結晶化温度が、用いたポリアセタール樹脂単独の降温時の結晶化温度よりも低い温度であることを特徴とする請求項1〜5のいずれか1項に記載の樹脂組成物。
【請求項7】 前記ポリアセタール樹脂がポリアセタールコポリマーであることを特徴とする請求項1〜6のいずれか1項に記載の樹脂組成物。
【請求項】 請求項1〜のいずれか1項に記載の樹脂組成物からなる成形品。
[Claims]
1. A polylactic acid resin, a polyacetal resin , a polymer obtained by polycondensation of an aromatic dicarboxylic acid or an ester-forming derivative thereof and an aliphatic diol or an ester-forming derivative thereof as main components, terephthalic acid or an ester thereof Selected from polymers, aliphatic polyester carbonates, polyhydroxyalkanoates, succinic acid, adipic acid, and their ester-forming derivatives, which are formed by polycondensation of a forming derivative and butanediol or its ester-forming derivative as main components. One or more dicarboxylic acids and one or more diols selected from butanediol, ethylene glycol and their ester-forming derivatives , containing a thermoplastic polyester resin selected from a polymer obtained by polycondensation as a main component. Characterized by Resin composition.
2. The method according to claim 1, wherein when the total of the polylactic acid resin and the polyacetal resin is 100 parts by weight, the content of the polylactic acid resin is 99 parts by weight or less and 50 parts by weight or more. The resin composition as described in the above.
3. The content of the polyacetal resin is 99 parts by weight or more and more than 50 parts by weight when the total of the polylactic acid resin and the polyacetal resin is 100 parts by weight. Resin composition.
4. The content of the thermoplastic polyester resin is not more than 100 parts by weight and not less than 1 part by weight when the total of the polylactic acid resin and the polyacetal resin is 100 parts by weight. 4. The resin composition according to any one of items 3 to 3.
5. The resin composition according to claim 1, wherein the polylactic acid resin and the polyacetal resin in the resin composition are compatible with each other.
6. The method according to claim 1, wherein the crystallization temperature of the resin composition at the time of temperature decrease derived from the polyacetal resin is lower than the crystallization temperature at the time of temperature decrease of the used polyacetal resin alone. The resin composition according to claim 1.
7. The resin composition according to claim 1, wherein the polyacetal resin is a polyacetal copolymer.
8. A molded article comprising a resin composition according to any one of claims 1-7.

すなわち、本発明は、ポリ乳酸樹脂、ポリアセタール樹脂ならびに、芳香族ジカルボン酸またはそのエステル形成性誘導体と脂肪族ジオールまたはそのエステル形成性誘導体を主成分として重縮合してなる重合体、テレフタル酸またはそのエステル形成性誘導体とブタンジオールまたはそのエステル形成性誘導体を主成分として重縮合してなる重合体、脂肪族ポリエステルカーボネート、ポリヒドロキシアルカノエート、コハク酸、アジピン酸およびそれらのエステル形成性誘導体から選択される一種以上のジカルボン酸と、ブタンジオール、エチレングリコールおよびそれらのエステル形成性誘導体から選択される一種以上のジオールを、主成分として重縮合してなる重合体から選ばれる熱可塑性ポリエステル樹脂を含有してなることを特徴とする樹脂組成物を提供するものである。 That is, the present invention is a polylactic acid resin, a polyacetal resin, and a polymer formed by polycondensation of an aromatic dicarboxylic acid or an ester-forming derivative thereof and an aliphatic diol or an ester-forming derivative thereof as a main component, terephthalic acid or a polymer thereof. Polymers formed by polycondensation with an ester-forming derivative and butanediol or its ester-forming derivative as main components, selected from aliphatic polyester carbonates, polyhydroxyalkanoates, succinic acid, adipic acid and their ester-forming derivatives One or more dicarboxylic acids and one or more diols selected from butanediol, ethylene glycol and their ester-forming derivatives, and a thermoplastic polyester resin selected from a polymer obtained by polycondensation as a main component. Specially It is to provide a resin composition which is.

なお、本発明の樹脂組成物においては、
前記ポリ乳酸樹脂およびポリアセタール樹脂の合計を100重量部としたときに、前記ポリ乳酸樹脂の含有量が99重量部以下50重量部以上であること、
前記ポリ乳酸樹脂およびポリアセタール樹脂の合計を100重量部としたときに、前記ポリアセタール樹脂の含有量が99重量部以下50重量部超であること、
前記ポリ乳酸樹脂およびポリアセタール樹脂の合計を100重量部としたときに、
前記熱可塑性ポリエステル樹脂の含有量が100重量部以下1重量部以上であること、
前記樹脂組成物中のポリ乳酸樹脂とポリアセタール樹脂が相溶化していること、
前記樹脂組成物のポリアセタール樹脂由来の降温時の結晶化温度が、用いたポリアセタール樹脂単独の降温時の結晶化温度よりも低い温度であること、
前記ポリアセタール樹脂がポリアセタールコポリマーであること
、いずれも好ましい条件として挙げられ、これらの条件を適用した場合には一層優れた効果の取得を期待することができる。
In the resin composition of the present invention,
When the total of the polylactic acid resin and the polyacetal resin is 100 parts by weight, the content of the polylactic acid resin is 99 parts by weight or less and 50 parts by weight or more,
When the total of the polylactic acid resin and the polyacetal resin is 100 parts by weight, the content of the polyacetal resin is 99 parts by weight or less and more than 50 parts by weight,
When the total of the polylactic acid resin and the polyacetal resin is 100 parts by weight,
The content of the thermoplastic polyester resin is 100 parts by weight or less and 1 part by weight or more,
Polylactic acid resin and polyacetal resin in the resin composition are compatible,
The crystallization temperature of the resin composition at the time of temperature decrease derived from the polyacetal resin is lower than the crystallization temperature of the polyacetal resin used alone at the time of temperature decrease,
The polyacetal resin is a polyacetal copolymer ,
However , any of these conditions are mentioned as preferable conditions, and when these conditions are applied, it is possible to expect to obtain more excellent effects.

JP2003023308A 2002-03-20 2003-01-31 Resin composition and molded article comprising the same Expired - Fee Related JP4306262B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003023308A JP4306262B2 (en) 2002-03-20 2003-01-31 Resin composition and molded article comprising the same

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2002-79718 2002-03-20
JP2002079718 2002-03-20
JP2003023308A JP4306262B2 (en) 2002-03-20 2003-01-31 Resin composition and molded article comprising the same

Related Child Applications (1)

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JP2008214146A Division JP4586910B2 (en) 2002-03-20 2008-08-22 Resin composition and molded article comprising the same

Publications (3)

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JP2003342459A JP2003342459A (en) 2003-12-03
JP2003342459A5 true JP2003342459A5 (en) 2006-03-16
JP4306262B2 JP4306262B2 (en) 2009-07-29

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006036818A (en) * 2004-07-22 2006-02-09 Toyota Central Res & Dev Lab Inc Polylactic acid resin composition, molding obtained from the same and method for producing the molding
JP5292719B2 (en) * 2007-04-25 2013-09-18 三菱化学株式会社 Thermoplastic polymer composition and molded article
WO2008013316A1 (en) 2006-07-28 2008-01-31 Teijin Limited Resin composition, method for producing the same and molded article
JP2008222856A (en) * 2007-03-13 2008-09-25 Toray Ind Inc Resin composition and molded product comprising the same
WO2009099225A1 (en) 2008-02-04 2009-08-13 Teijin Limited Resin composition and molded article
JP5418157B2 (en) * 2009-11-09 2014-02-19 三菱瓦斯化学株式会社 Polyacetal resin composition and molded article thereof
CN102649871B (en) * 2011-02-28 2015-05-13 深圳市富恒新材料股份有限公司 Degradable PBT/PLA (Polybutylece Terephthalate/Poly Lactic Acid) alloy and preparation method thereof

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