JP6948504B2 - プラスチック組成物、プラスチック組成物の製造方法、及びプラスチック組成物の使用 - Google Patents
プラスチック組成物、プラスチック組成物の製造方法、及びプラスチック組成物の使用 Download PDFInfo
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- JP6948504B2 JP6948504B2 JP2018526997A JP2018526997A JP6948504B2 JP 6948504 B2 JP6948504 B2 JP 6948504B2 JP 2018526997 A JP2018526997 A JP 2018526997A JP 2018526997 A JP2018526997 A JP 2018526997A JP 6948504 B2 JP6948504 B2 JP 6948504B2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
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- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
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- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
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- C08K5/00—Use of organic ingredients
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- C08K5/05—Alcohols; Metal alcoholates
- C08K5/053—Polyhydroxylic alcohols
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- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
Claims (13)
- 充填剤を含むプラスチック組成物であって、
結晶性を有するポリアミドである少なくとも1種類の熱可塑性ポリマー(a)と、
少なくとも1種類の不飽和脂肪族脂肪酸の金属塩(b)と、
融点が、(a)に記載の熱可塑性ポリマーの融点より80度低い温度を下回らない温度であって50度高い温度を上回らない温度である、少なくとも1種類の多価脂肪族アルコール(c)と、
(c)に記載のアルコールとは異なるアルコールで、沸点が(a)に記載の熱可塑性ポリマーの融点より100度低い温度を下回らない温度であって80度高い温度を上回らない温度である、少なくとも1種類の芳香族アルコール(d)と、
少なくとも1種の、粒状の充填剤(e)と、を備えることを特徴とするプラスチック組成物。 - 前記プラスチック組成物に含まれる充填剤の量は、充填剤を含んだ前記プラスチック組成物の総体積の40体積%より多い及び/又は該充填剤の理論上の最大値の80体積%より多いことを特徴とする、請求項1に記載のプラスチック組成物。
- 前記多価脂肪族アルコール(c)の融点は、前記熱可塑性ポリマー(a)の融点より50度低い温度を下回らない温度である及び30度高い温度を上回らない温度であって、及び/又は前記追加される芳香族アルコール(d)の沸点は、前記熱可塑性ポリマー(a)の融点より70度低い温度を下回らない温度であって及び50度高い温度を上回らない温度であることを特徴とする、請求項1及び2の何れか1項に記載のプラスチック組成物。
- 前記充填剤(e)は金属粉体、金属酸化物粉体、若しくは酸化物セラミック粉体であり、及び/又は前記充填剤(e)の平均粒径は1〜150μmの範囲であることを特徴とする、請求項1〜3の何れか1項に記載のプラスチック組成物。
- 前記熱可塑性ポリマー(a)の平均モル質量は104〜106g/molであり、及び/又は前記熱可塑性ポリマーの融点は140〜400度の範囲であることを特徴とする、請求項1〜4の何れか1項に記載のプラスチック組成物。
- 前記熱可塑性ポリマー(a)は結晶度が80%未満であり及び/又は多分散性が5未満である半結晶質ポリマーであることを特徴とする、請求項1〜5の何れか1項に記載のプラスチック組成物。
- 前記金属塩(b)の脂肪酸は、8個より多い炭素原子を有し、少なくとも一つの二重結合を有する一価カルボン酸であることを特徴とする、請求項1〜6の何れか1項に記載のプラスチック組成物。
- 未充填部分におけるプラスチック組成物において、前記金属塩(b)の割合は1〜15重量%であり、好ましくは3〜7重量%であることを特徴とする、請求項1〜7の何れか1項に記載のプラスチック組成物。
- 多価脂肪族アルコール(c)は、2〜8個のヒドロキシル基を有し、並びに/又は、主鎖中の多価脂肪族アルコール(c)が、直鎖状、環状、及び/若しくは直鎖状かつ環状部分を有し、炭素原子のみを有し、任意で酸素原子を有することを特徴とする、請求項1〜8の何れか1項に記載のプラスチック組成物。
- 未充填部分におけるプラスチック組成物において、前記多価脂肪族アルコール(c)の割合は3〜40重量%であり、好ましくは10〜30重量%であることを特徴とする、請求項1〜9の何れか1項に記載のプラスチック組成物。
- 前記プラスチック組成物における前記芳香族アルコール(d)の割合は3〜20重量%であり、好ましくは5〜15重量%であることを特徴とする、請求項1〜10の何れか1項に記載のプラスチック組成物。
- 請求項1〜11の何れか1項に記載の、充填剤を含むプラスチック組成物の製造方法において、
前記充填剤(e)を溶媒内で懸濁させる行程Aと、
前記金属塩(b)と、前記多価脂肪族アルコール(c)と、を前記工程Aから得られる懸濁液に添加混合する行程Bと、
前記懸濁液を乾燥し、前記溶媒を除去する行程Cと、
前記懸濁液の残渣を前記ポリマー(a)と混合する行程Dと、
更に前記芳香族アルコール(d)を追加する行程Eと、を備えることを特徴とする、プラスチック組成物の製造方法。 - 成形品の製造工程である射出成型プロセス又は押出成形プロセスの一部として製造するための、請求項1〜11の何れか1項に記載の充填剤を含むプラスチック組成物の使用。
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