JP6651441B2 - 発泡熱可塑性エラストマー粒子の製造方法 - Google Patents
発泡熱可塑性エラストマー粒子の製造方法 Download PDFInfo
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- JP6651441B2 JP6651441B2 JP2016521984A JP2016521984A JP6651441B2 JP 6651441 B2 JP6651441 B2 JP 6651441B2 JP 2016521984 A JP2016521984 A JP 2016521984A JP 2016521984 A JP2016521984 A JP 2016521984A JP 6651441 B2 JP6651441 B2 JP 6651441B2
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- thermoplastic elastomer
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- thermoplastic
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- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 description 1
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- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
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- CNUJLMSKURPSHE-UHFFFAOYSA-N trioctadecyl phosphite Chemical compound CCCCCCCCCCCCCCCCCCOP(OCCCCCCCCCCCCCCCCCC)OCCCCCCCCCCCCCCCCCC CNUJLMSKURPSHE-UHFFFAOYSA-N 0.000 description 1
- DHNUXDYAOVSGII-UHFFFAOYSA-N tris(1,3-dichloropropyl) phosphate Chemical compound ClCCC(Cl)OP(=O)(OC(Cl)CCCl)OC(Cl)CCCl DHNUXDYAOVSGII-UHFFFAOYSA-N 0.000 description 1
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- WGKLOLBTFWFKOD-UHFFFAOYSA-N tris(2-nonylphenyl) phosphite Chemical compound CCCCCCCCCC1=CC=CC=C1OP(OC=1C(=CC=CC=1)CCCCCCCCC)OC1=CC=CC=C1CCCCCCCCC WGKLOLBTFWFKOD-UHFFFAOYSA-N 0.000 description 1
- QEDNBHNWMHJNAB-UHFFFAOYSA-N tris(8-methylnonyl) phosphite Chemical compound CC(C)CCCCCCCOP(OCCCCCCCC(C)C)OCCCCCCCC(C)C QEDNBHNWMHJNAB-UHFFFAOYSA-N 0.000 description 1
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Classifications
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Description
a)含浸工程、
ここでは、前記気体媒質が含浸温度Taを有し、前記気体媒質の絶対圧力が環境気圧より高く、
発泡剤が前記熱可塑性エラストマー粒子の中に溶解される、
b)発泡工程、
ここでは、前記熱可塑性エラストマー粒子が、第1発泡温度Tbで、減圧に曝され、発泡する、
c)任意に、融合工程、
ここでは、前記発泡熱可塑性エラストマー粒子が、融合温度Tcで、共に融合され、少なくとも1つの成形部品を形成する、
を含み、
前記熱可塑性エラストマー粒子が、非晶質熱可塑性エラストマー又は部分的結晶性熱可塑性エラストマー、又はそれらの混合物からなり、前記含浸温度Ta、前記第1発泡温度Tb及び前記融合温度Tcが、前記熱可塑性エラストマーの特質に依存し、それについて、
i. 前記熱可塑性エラストマーが非晶質である場合、前記含浸温度Ta、前記第1発泡温度Tb及び前記融合温度Tcが第1限定温度TG−40より高く、前記第1限定温度TG−40が、非含浸の熱可塑性エラストマー粒子のDIN EN ISO 11357−2:2013−09によるガラス転移温度TGより40℃低く、
ii. 前記熱可塑性エラストマーが部分的結晶性である場合、前記含浸温度Ta、前記第1発泡温度Tb及び前記融合温度Tcが、前記非含浸の熱可塑性エラストマー粒子のDIN EN ISO 11357−2:2013−09によるガラス転移温度TGより高く、前記非含浸の熱可塑性エラストマー粒子のDIN EN ISO 11357−2:2013−04による融解温度TSより5℃低い第2限定温度TS−5より低い。
又は当業者に公知の他の方法に使用される。
− エチレングリコール、1,3−プロパンジオール、1,4−ブタンジオール又は1,6−ヘキサンジオールなどの一般式HO−(CH2)n−OHのジオール、式中n=2〜20
− 一般式HO−(CH2)n−O−(CH2)m−OHのポリエーテルオール、式中、n及びmがそれぞれに2〜20であり、n及びmが同一又は異なってもよく、
− 不飽和ジオール及びポリエーテルオール、例えば1,4−ブテンジオール、
− 芳香族ユニットを含むジオール及びポリエーテルオール、並びに、
− ポリエステルオール、
を含む。
− HOOC−R’−NH2、式中、R’が、芳香族及び脂肪族であってもよく、好ましくはR−O−Rタイプのエーテルユニットを含み、その中のRが脂肪族及び/又は芳香族の有機ラジカルであり、
− 芳香族ジカルボン酸、例えば、フタル酸、イソフタル酸及びテレフタル酸、又はそれらのエステル、並びに、R−O−Rタイプのエーテルユニットを含む芳香族ジカルボン酸、式中、Rが脂肪族及び/又は芳香族の有機ラジカルであり、
− 脂肪族ジカルボン酸、例えば、飽和ジカルボン酸としての1,4−シクロヘキサンジカルボン酸、アジピン酸、セバシン酸、アゼライン酸及びデカンジカルボン酸、不飽和ジカルボン酸としてのマレイン酸、フマル酸、アコニット酸、イタコン酸、テトラヒドロフタル酸及びテトラヒドロテレフタル酸、並びに、R−O−Rタイプのエーテルユニットを含む脂肪族ジカルボン酸、式中、Rが脂肪族及び/又は芳香族の有機ラジカルであり、
− ラクタム、例えばε−カプロラクタム、ピロリドン又はラウロラクタム、並びに、
− アミノ酸。
4,4’−ジフェニルメタンジイソシアネート(MDI)、ポリテトラヒドロフラン(Poly−THF)及び1,4−ブタンジオールをベースとし、600%を超える破断点伸び度及び80Aのショア硬度を有する熱可塑性ポリウレタンの形態で、例えばBASFポリウレタンからのElastollan(登録商標)1180A10として購入できる熱可塑性エラストマー(TPE)を使用する。
4,4’−ジフェニルメタンジイソシアネート(MDI)、ポリテトラヒドロフラン(Poly−THF)及び1,4−ブタンジオールをベースとし、600%を超える破断点伸び度及び80Aのショア硬度を有する熱可塑性ポリウレタンの形態で、例えばBASFポリウレタンからのElastollan(登録商標)1180A10として購入できるTPEを使用する。
4,4’−ジフェニルメタンジイソシアネート(MDI)、ポリテトラヒドロフラン(Poly−THF)及び1,4−ブタンジオールをベースとし、800%を超える破断点伸び度及び70Aのショア硬度を有する熱可塑性ポリウレタンの形態で、例えばBASFポリウレタンからのElastollan(登録商標)1170A10として購入できるTPEを使用する。
熱可塑性エラストマー特性(S−TPE)、300%を超える破断点伸び度、84Aのショア硬度及び14cm3/10分のメルトボリュームレイト(200℃/5kgでのMVR)を有するスチレン−ブタジエンブロックコポリマー(SBC)の形態で、例えばStyrolutionからのStyroflex(登録商標)2G66として購入できるTPEを使用する。
ポリテトラヒドロフラン(Poly−THF)及びポリブチレンテレフタレートをベースとし、500%を超える破断点伸び度及び90Aのショア硬度を有するポリエーテルエステルの形態のTPEを使用する。
1,4−ベンズジカルボン酸、ジメチルエステル、1,4−ブタンジオール及びα−ヒドロ−ω−ヒドロキシポリ(オキシ−1,4−ブタンジイル)をベースとし、700%を超える破断点伸び度及び96Aのショア硬度を有するポリエステルエステルの形態で、例えばToyobo株式会社からのPelprene(登録商標)P−70Bとして購入できるTPEを使用する。
可撓性のポリテトラヒドロフラン及び結晶性のポリアミドユニットをベースとし、700%を超える破断点伸び度及び77Aのショア硬度を有するポリエーテルアミドの形態で、例えばArkemaからのPebax(登録商標)2533SDとして購入できるTPEを使用する。
450%を超える破断点伸び度、38Dのショア硬度及び28cm3/10分のメルトボリュームレイト(190℃/2.16kg)を有するポリエーテル軟質セグメントの形態で、例えばDSMからのArnitel(登録商標)PL380として購入できるTPEを使用する。
長鎖ポリエーテルグリコールに由来する硬質(結晶性)ポリブチレンテレフタレートセグメント及び軟質(非晶質)ユニットをベースとし、700%を超える破断点伸び度、30Dのショア硬度及び5g/10分の190℃/2.16kgでのMFR質量流量を有するポリエーテルエステルの形態で、例えばDuPontからのHytrel(登録商標)3078として購入できるTPEを使用する。
4,4’−ジフェニルメタンジイソシアネート(MDI)、ポリテトラヒドロフラン(Poly−THF)及び1,4−ブタンジオールをベースとし、600%を超える破断点伸び度及び80Aのショア硬度を有する熱可塑性ポリウレタンの形態で、例えばBASFポリウレタンからのElastollan(登録商標)1180A10として購入できるTPEを使用する。
Claims (11)
- 気体媒質が熱可塑性エラストマー粒子を取り囲む、独立気泡及び連続的な表面を有する発泡熱可塑性エラストマー粒子の製造方法であって、前記方法が、下記の工程、
a)含浸工程、
ここでは、前記気体媒質が含浸温度Taを有し、前記気体媒質の絶対圧力が環境気圧より高く、
発泡剤が前記熱可塑性エラストマー粒子の中に溶解される、
b)発泡工程、
ここでは、前記熱可塑性エラストマー粒子が、第1発泡温度Tbで、減圧に曝され、発泡する、
c)場合により、融合工程、
ここでは、発泡した前記熱可塑性エラストマー粒子が、融合温度Tcで、共に融合され、少なくとも1つの成形部品を形成する、
を含み、
前記熱可塑性エラストマー粒子が、非晶質熱可塑性エラストマー、又は部分的結晶性熱可塑性エラストマー、又はそれらの混合物からなり、前記含浸温度Ta、前記第1発泡温度Tb及び前記融合温度Tcが、前記熱可塑性エラストマーの特質に依存するとともに、使用される前記熱可塑性エラストマーは、DIN EN ISO 527−2:2012−06により測定される、200%より大きい破断点伸びと、DIN 53505:1987−06により測定される、A44〜A99の範囲のショア硬度と、を有し、それについて、
i. 前記熱可塑性エラストマーが非晶質である場合、前記含浸温度Ta、前記第1発泡温度Tb及び前記融合温度Tcが第1限定温度TG−40より高く、前記第1限定温度TG−40が、非含浸の熱可塑性エラストマー粒子のDIN EN ISO 11357−2:2013−09によるガラス転移温度TGより40℃低く、
ii. 前記熱可塑性エラストマーが部分的結晶性である場合、前記含浸温度Ta、前記第1発泡温度Tb及び前記融合温度Tcが、前記非含浸の熱可塑性エラストマー粒子のDIN EN ISO 11357−2:2013−09によるガラス転移温度TGより高く、前記非含浸の熱可塑性エラストマー粒子のDIN EN ISO 11357−2:2013−04による融解温度TSより5℃低い第2限定温度TS−5より低く、
前記熱可塑性エラストマー粒子が、熱可塑性ポリエステルエラストマー、熱可塑性コポリアミド若しくは熱可塑性ポリウレタン、又はそれらの混合物を含むことを特徴とする方法。 - 前記熱可塑性エラストマー粒子が、ポリエーテルポリアミド、ポリエーテルエステル、ポリエステルエステル若しくは熱可塑性ポリウレタン、又はそれらの混合物を含む請求項1に記載の方法。
- 前記熱可塑性エラストマー粒子が熱可塑性ポリウレタンを含む請求項1又は2に記載の方法。
- 前記含浸工程a)及び前記発泡工程b)が、1つの装置の中で行われる請求項1から3のいずれか一項に記載の方法。
- 前記含浸工程a)、前記発泡工程b)及び前記融合工程c)が、1つの装置の中で行われる請求項1から4のいずれか一項に記載の方法。
- 前記第1発泡温度Tb及び前記融合温度Tcが同一であり、前記発泡工程b)及び前記融合工程c)が同時に行われる請求項1から5のいずれか一項に記載の方法。
- 前記熱可塑性エラストマー粒子が、前記発泡工程b)で一部だけ発泡され、更なる発泡工程b2)で第2発泡温度Tb2で完全に発泡され、前記第2発泡温度Tb2が前記熱可塑性エラストマーの特質に依存し、それについて、
I. 前記熱可塑性エラストマーが非晶質である場合、前記第2発泡温度Tb2が前記第1限定温度TG−40より高く、
II. 前記熱可塑性エラストマーが部分的結晶性である場合、前記第2発泡温度Tb2が、前記非含浸の熱可塑性エラストマー粒子のガラス転移温度TGより高く、前記第2限定温度TS−5より低い、
請求項1から5のいずれか一項に記載の方法。 - 前記含浸工程a)及び前記熱可塑性エラストマー粒子を部分的に発泡する前記発泡工程b)が第1装置で行われ、前記部分的発泡の熱可塑性エラストマー粒子を完全に発泡する前記発泡工程b2)が第2装置で行われる請求項7に記載の方法。
- 前記含浸工程a)及び前記熱可塑性エラストマー粒子を部分的に発泡する前記発泡工程b)が前記第1装置で行われ、前記部分的発泡の熱可塑性エラストマー粒子を完全に発泡する前記発泡工程b2)及び前記融合工程c)が前記第2装置で行われる請求項7又は8に記載の方法。
- 前記第2発泡温度Tb2及び前記融合温度Tcが同一であり、前記更なる発泡工程b2)及び前記融合工程c)が同時に行われる請求項7から9のいずれか一項に記載の方法。
- 前記発泡剤がCO2、N2、又はそれらの混合物を含む請求項1から10のいずれか一項に記載の方法。
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