JP2016534203A - ポリ乳酸樹脂の繊維状粒子を製造する方法、発泡シート形成用コロイド組成物、発泡シートおよび発泡シートの製造方法 - Google Patents
ポリ乳酸樹脂の繊維状粒子を製造する方法、発泡シート形成用コロイド組成物、発泡シートおよび発泡シートの製造方法 Download PDFInfo
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- 239000011347 resin Substances 0.000 title claims abstract description 112
- 229920005989 resin Polymers 0.000 title claims abstract description 112
- 239000002245 particle Substances 0.000 title claims abstract description 82
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- 230000000052 comparative effect Effects 0.000 description 5
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/36—Feeding the material to be shaped
- B29C44/367—Feeding the material to be shaped using spray nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
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- C08J3/12—Powdering or granulating
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
- C08J3/122—Pulverisation by spraying
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C08J9/28—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
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- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
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- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
- D01F6/625—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters derived from hydroxy-carboxylic acids, e.g. lactones
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
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- C—CHEMISTRY; METALLURGY
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- C08J2201/05—Elimination by evaporation or heat degradation of a liquid phase
- C08J2201/0502—Elimination by evaporation or heat degradation of a liquid phase the liquid phase being organic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L2203/16—Applications used for films
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
Abstract
Description
ペレット状のポリ乳酸樹脂を用いて溶融静電スプレー法で縦断面の平均直径が約150μm、アスペクト比が50である繊維状粒子を製造した。溶融静電スプレー法を行う際に、噴射ノズルの温度が250℃、噴射ノズルの圧力が500psiであり、噴射ノズルの直径が1mmであり、噴射ノズルに20,000Vの電圧を印加しており、溶融ポリ乳酸噴射液の粘度が230℃で2200cpであった。
実施例1と同じペレット状のポリ乳酸樹脂に可塑剤、安定剤、滑剤などの添加剤を投入し混合してポリ乳酸樹脂含有混合組成物を製造した。前記ポリ乳酸樹脂含有混合組成物をバンバリーミキサーを使用して150℃で混練し、150℃の2本ロールを使用して1、2次混合を行った。これにより製造された混合原料をカレンダー加工して発泡し、厚さが0.5mmである発泡シートサンプルを製造した。
(実験例1:ポリ乳酸の分子量の測定)
前記実施例1および比較例1で製造した発泡シートサンプルに対して、GPC(gel permeation chromatography)(e2695、Waters社製)を使用して重量平均分子量を測定し、下記の表1に記載した。
前記実施例1および比較例1で製造したシートをASTM D256の方式に準じて耐衝撃強度を測定し、下記の表1に記載した。
前記実施例1および比較例1で製造したシートに対して、表面特性を目視で評価し、下記の表1に記載した。評価基準は、目視判定であり、5点尺度とし、5点(優秀)〜1点(NG)と判定した。
Claims (20)
- ポリ乳酸樹脂の繊維状粒子を粉砕して得た平均直径1〜100μmのポリ乳酸樹脂粒子を含む、発泡シート形成用コロイド組成物。
- 前記ポリ乳酸樹脂の繊維状粒子のアスペクト比が20〜100である、請求項1に記載の発泡シート形成用コロイド組成物。
- 前記ポリ乳酸樹脂の繊維状粒子の縦断面の平均直径が10μm〜300μmである、請求項1に記載の発泡シート形成用コロイド組成物。
- 請求項1から3のいずれか1項に記載の発泡シート形成用コロイド組成物を発泡させて形成したポリ乳酸発泡層を含む、発泡シート。
- 前記ポリ乳酸樹脂粒子は、100,000〜200,000の重量平均分子量を有するポリ乳酸樹脂を含む、請求項4に記載の発泡シート。
- ポリ乳酸樹脂を投入した後、溶融ポリ乳酸噴射液を形成するステップと、
前記溶融ポリ乳酸噴射液を溶融スプレー法により噴射すると同時に冷却させてポリ乳酸樹脂の繊維状粒子を得るステップと、を含む、ポリ乳酸樹脂の繊維状粒子を製造する方法。 - 前記ポリ乳酸樹脂を押出機に投入した後、噴射ノズルに移動させて前記噴射ノズルで加温し、前記溶融ポリ乳酸噴射液を形成する、請求項6に記載のポリ乳酸樹脂の繊維状粒子を製造する方法。
- ペレット状のポリ乳酸樹脂または粉末状のポリ乳酸樹脂を前記押出機に投入する、請求項7に記載のポリ乳酸樹脂の繊維状粒子を製造する方法。
- 前記溶融ポリ乳酸噴射液が前記噴射ノズルに空気をともに注入されて吐出される、請求項8に記載のポリ乳酸樹脂の繊維状粒子を製造する方法。
- 前記噴射ノズルに注入される空気の温度が300〜500℃であり、圧力が100〜1000psiであり、注入速度が10〜50m/sである、請求項9に記載のポリ乳酸樹脂の繊維状粒子を製造する方法。
- 前記噴射ノズルの温度が200〜400℃である、請求項6に記載のポリ乳酸樹脂の繊維状粒子を製造する方法。
- 前記噴射ノズルの圧力が10psi〜1000psiである、請求項6に記載のポリ乳酸樹脂の繊維状粒子を製造する方法。
- 前記噴射ノズルの直径が0.5〜3.0mmである、請求項6に記載のポリ乳酸樹脂の繊維状粒子を製造する方法。
- 前記噴射液の粘度が250℃で1500〜3000cpである、請求項6に記載のポリ乳酸樹脂の繊維状粒子を製造する方法。
- 前記噴射液は、可塑剤を含んでいない、請求項6に記載のポリ乳酸樹脂の繊維状粒子を製造する方法。
- 前記噴射ノズルに10,000〜50,000Vの電圧を印加して溶融静電スプレー法を行う、請求項6に記載のポリ乳酸樹脂の繊維状粒子を製造する方法。
- 前記ポリ乳酸樹脂の繊維状粒子のアスペクト比が1〜5である、請求項6に記載のポリ乳酸樹脂の繊維状粒子を製造する方法。
- 前記ポリ乳酸樹脂の繊維状粒子の縦断面の直径が10μm〜300μmである、請求項6に記載のポリ乳酸樹脂の繊維状粒子を製造する方法。
- 縦断面の直径が10μm〜300μmであるポリ乳酸樹脂の繊維状樹脂粒子を溶融スプレー法により得るステップと、
前記ポリ乳酸樹脂の繊維状樹脂粒子を平均直径1〜100μmのポリ乳酸樹脂粒子に粉砕するステップと、
前記粉砕されたポリ乳酸樹脂粒子および溶媒を混合してコロイド組成物で発泡性樹脂組成物を製造し、前記発泡性樹脂組成物を塗布して層を形成するステップと、
前記発泡性樹脂組成物から形成された層を発泡してポリ乳酸発泡層を形成するステップと、を含む、ポリ乳酸発泡層を含む発泡シートの製造方法。 - 前記ポリ乳酸樹脂の繊維状粒子のアスペクト比が1〜5である、請求項19に記載の発泡シートの製造方法。
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KR1020130103467A KR101762997B1 (ko) | 2013-08-29 | 2013-08-29 | 폴리락트산 수지의 섬유상 입자를 제조하는 방법, 발포 시트 형성용 콜로이드 조성물, 발포 시트 및 발포 시트의 제조 방법 |
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PCT/KR2014/008060 WO2015030517A1 (ko) | 2013-08-29 | 2014-08-29 | 폴리락트산 수지의 섬유상 입자를 제조하는 방법, 발포 시트 형성용 콜로이드 조성물, 발포 시트 및 발포 시트의 제조 방법 |
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JP2012025869A (ja) * | 2010-07-26 | 2012-02-09 | Jsp Corp | ポリ乳酸系樹脂発泡粒子の製造方法 |
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US20070190101A1 (en) * | 2004-03-31 | 2007-08-16 | Chunlin Yang | Flowable bone grafts |
JP4446385B2 (ja) * | 2004-10-04 | 2010-04-07 | 株式会社ジェイエスピー | 熱成形用多層ポリ乳酸系樹脂発泡体 |
TWI398471B (zh) | 2005-01-25 | 2013-06-11 | Jsp Corp | 發泡性聚乳酸樹脂粒子,聚乳酸發泡粒子及聚乳酸發泡粒子成形體 |
KR101050338B1 (ko) * | 2007-03-29 | 2011-07-19 | 세키스이가세이힝코교가부시키가이샤 | 형내 발포 성형용 폴리락트산계 수지 발포 입자 및 그 제조 방법과 폴리락트산계 수지 발포 성형체의 제조 방법 |
NL1033719C2 (nl) * | 2007-04-19 | 2008-10-21 | Synbra Tech Bv | Deeltjesvormig expandeerbaar polymelkzuur, werkwijze voor het vervaardigen hiervan, geschuimd vormdeel op basis van deeltjesvormig expandeerbaar polymelkzuur evenals werkwijze voor het vervaardigen hiervan. |
KR100900251B1 (ko) * | 2007-07-19 | 2009-05-29 | 정지수 | 폴리락트산계 중합체 조성물, 그를 이용한 발포시트, 그의제조방법 및 그로부터 제조된 발포시트 성형체의 용도 |
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BR112012029328A2 (pt) * | 2010-05-18 | 2016-07-26 | Jsp Corp | contas expandidas de resina poliláctica e artigo moldado das contas expandidas |
WO2012086305A1 (ja) * | 2010-12-21 | 2012-06-28 | 株式会社ジェイエスピー | ポリ乳酸系樹脂発泡粒子及びポリ乳酸系樹脂発泡粒子成形体 |
KR101393811B1 (ko) * | 2011-12-13 | 2014-05-13 | (주)엘지하우시스 | 가교된 폴리락트산을 이용한 발포 시트 및 이의 제조방법 |
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JP2012025869A (ja) * | 2010-07-26 | 2012-02-09 | Jsp Corp | ポリ乳酸系樹脂発泡粒子の製造方法 |
JP2012188560A (ja) * | 2011-03-11 | 2012-10-04 | Sekisui Plastics Co Ltd | ポリエステル系樹脂発泡粒子並びにこれを用いたポリエステル系樹脂発泡成形体及びその製造方法 |
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KR101762997B1 (ko) | 2017-07-28 |
US20160222183A1 (en) | 2016-08-04 |
JP6408007B2 (ja) | 2018-10-17 |
EP3040379A4 (en) | 2017-02-15 |
EP3040379B1 (en) | 2018-08-22 |
CN105492530A (zh) | 2016-04-13 |
CN105492530B (zh) | 2018-06-19 |
WO2015030517A1 (ko) | 2015-03-05 |
EP3040379A1 (en) | 2016-07-06 |
US10017620B2 (en) | 2018-07-10 |
KR20150025634A (ko) | 2015-03-11 |
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