JP7419232B2 - 発泡性アクリル組成物 - Google Patents
発泡性アクリル組成物 Download PDFInfo
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- JP7419232B2 JP7419232B2 JP2020529714A JP2020529714A JP7419232B2 JP 7419232 B2 JP7419232 B2 JP 7419232B2 JP 2020529714 A JP2020529714 A JP 2020529714A JP 2020529714 A JP2020529714 A JP 2020529714A JP 7419232 B2 JP7419232 B2 JP 7419232B2
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- acrylic
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- polymeric foam
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Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/10—Homopolymers or copolymers of methacrylic acid esters
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Description
1. 下記(a)及び(b):
(a)発泡ポリマー性熱可塑性(メタ)アクリルマトリックス、
(b)補強材としての繊維質材料、
を含むポリマー性発泡複合材料であって、
前記繊維質材料が少なくとも1000の繊維のアスペクト比を有する繊維を含み、又は前記繊維質材料が二次元の巨視的構造を有し、
前記発泡ポリマー性熱可塑性(メタ)アクリルマトリックスの密度が、同じ組成の未発泡ポリマー性熱可塑性(メタ)アクリルマトリックスの密度より少なくとも5、好ましくは10、好ましくは20、好ましくは30、より一層好ましくは50、より一層好ましくは70、より一層好ましくは90%低い、前記ポリマー性発泡複合材料。
a)(メタ)アクリルポリマー、
b)(メタ)アクリルモノマー、
c)前記(メタ)アクリルモノマーの重合を開始させるための少なくとも1種の開始剤又は開始用システム、
d)少なくとも1種の発泡剤、
を含む液状(メタ)アクリルシロップであって、
10mPa・s~10000mPa・s、好ましくは50mPa・s~5000mPa・s、有利には100mPa・s~1000mPa・sの範囲の動的粘度を有する、前記液状(メタ)アクリルシロップ。
a.発泡剤、(メタ)アクリルモノマー、(メタ)アクリルポリマー及び1種以上の開始剤をブレンドして、10mPa・s~10000mPa・s、好ましくは50mPa・s~5000mPa・s、有利には100mPa・s~1000mPa・sの範囲の動的粘度を有する液状(メタ)アクリルシロップを形成させる工程;
b.前記液状(メタ)アクリルシロップを重合させることによって構造体を形成させる工程:
を含む、前記方法。
a)膨張性ミクロスフェアを含む熱可塑性(メタ)アクリル発泡体物品をモールド中で成形する工程、
b)前記物品を硬化させる工程、
c)前記モールドを僅かに開くことによって又は前記硬化物品を僅かに大きいモールド中に移すことによって、モールドのサイズを大きくする工程、
d)前記物品に追加の熱を加えてさらなる膨張を引き起こして大きいモールドを満たす工程、
e)前記物品を冷やす工程、及び
f)前記物品を離型する工程
を含む、前記方法。
解決すべき課題:改善された密度低下、優れた光学特性及び/又は良好な機械的特性を有するアクリル発泡材料を製造することに対する要望が存在する。また、十分な機械的特性を維持しつつ密度を低下させることによってより高い強度対重量の比で熱可塑性アクリル複合材料の利点を有する発泡アクリル複合材料に対する要望も存在する。
Claims (14)
- 下記(a)及び(b):
(a)発泡ポリマー性熱可塑性(メタ)アクリルマトリックス、
(b)補強材としての繊維質材料、
を含み、前記ポリマー性熱可塑性(メタ)アクリルマトリックスの重量を基準として0.1~10重量%の膨張性ミクロスフェアをさらに含むポリマー性発泡複合材料であって、
前記繊維質材料が少なくとも1000の繊維のアスペクト比を有する繊維を含み、又は前記繊維質材料が二次元の巨視的構造を有し、
前記ポリマー性発泡複合材料の密度が、ポリマー性熱可塑性(メタ)アクリルマトリックスが未発泡である以外、同じ組成のポリマー性発泡複合材料の密度より少なくとも5%低い、前記ポリマー性発泡複合材料。 - 前記ポリマー性発泡複合材料の密度が、ポリマー性熱可塑性(メタ)アクリルマトリックスが未発泡である以外、同じ組成のポリマー性発泡複合材料の密度より少なくとも30%低い、請求項1に記載のポリマー性発泡複合材料。
- 前記ポリマー性発泡複合材料の密度が、ポリマー性熱可塑性(メタ)アクリルマトリックスが未発泡である以外、同じ組成のポリマー性発泡複合材料の密度より少なくとも70%低い、請求項1に記載のポリマー性発泡複合材料。
- 前記ポリマー性発泡複合材料の密度が、ポリマー性熱可塑性(メタ)アクリルマトリックスが未発泡である以外、同じ組成のポリマー性発泡複合材料の密度より少なくとも90%低い、請求項1に記載のポリマー性発泡複合材料。
- 前記繊維が天然材料、植物繊維、木材繊維、動物繊維、鉱物繊維、サイザル麻、ジュート、麻、亜麻、綿、ココナッツ繊維、バナナ繊維、ウール、髪、脂肪族ポリアミド、芳香族ポリアミド、ポリエステル、ポリビニルアルコール、ポリオレフィン、ポリウレタン、ポリ塩化ビニル、ポリエチレン、不飽和ポリエステル、エポキシ樹脂、ビニルエステル、鉱物繊維、ガラス繊維、炭素繊維、ホウ素繊維、シリカ繊維より成る群から選択される、請求項1に記載のポリマー性発泡複合材料。
- (メタ)アクリルマトリックスポリマーがメタクリル酸メチルモノマー単位を少なくとも70重量%含む、請求項1~5のいずれかに記載のポリマー性発泡複合材料。
- (メタ)アクリル発泡体を形成させるための方法であって、
a.膨張性ミクロスフェアを含む発泡剤、(メタ)アクリルモノマー、(メタ)アクリルポリマー及び1種以上の開始剤をブレンドして、10mPa・s~10000mPa・sの範囲の動的粘度を有する液状(メタ)アクリルシロップを形成させる工程;
b.前記液状(メタ)アクリルシロップを重合させることによって構造体を形成させる工程:
を含み、
重合に先立って、前記液状(メタ)アクリルシロップと補強材としての繊維質材料とを組み合わせることを含み、ここで、前記繊維質材料が少なくとも1000の繊維のアスペクト比を有する長繊維を含むか、又は前記繊維質材料が二次元若しくは三次元巨視的構造を有する、前記方法。 - 前記工程bにおける重合と同時に発泡を起こさせて発泡した構造体を形成させる、請求項7に記載の方法。
- 発泡剤が膨張するのを可能にすることができるエネルギーを加えることによって重合後に前記構造体を発泡させる、請求項7に記載の方法。
- 前記発泡剤が少なくとも1種の化学的発泡剤を含む、請求項7~9のいずれかに記載の方法。
- セルキャスト、ソリッドステートキャスティング、真空注入、引抜成形、湿式圧縮成形、樹脂トランスファー成形、圧縮樹脂トランスファー成形、レイアップ/スプレーアップ又はフィラメントワインディングによって前記構造体の形成を行う、請求項7~10のいずれかに記載の方法。
- 長繊維と液状(メタ)アクリルシロップとを組み合わせる工程を、グラビアコーティング、浸漬ディップコーティング、スロットダイコーティング、カーテンコーティング又はギャップコーティングによって行う、請求項7に記載の方法。
- ASTM法E340によって測定して向上した表面外観を有する(メタ)アクリル発泡体物品を形成させる方法であって、
a)請求項1~6のいずれかに記載のポリマー性発泡複合材料からなる物品をモールド中で成形する工程、
b)前記物品を硬化させる工程、
c)前記モールドを僅かに開くことによって又は前記工程b)において硬化された物品を僅かに大きいモールド中に移すことによって、モールドのサイズを大きくする工程、
d)前記物品に追加の熱を加えてさらなる膨張を引き起こして大きいモールドを満たす工程、
e)前記物品を冷やす工程、及び
f)前記物品を離型する工程
を含む、前記方法。 - 自動車部品、ボート部品、列車部品、スポーツ用品、飛行機部品、ヘリコプター部品、宇宙船部品、ロケット部品、太陽光発電モジュール部品、風力タービン部品、家具部品、建設部品、建築部品、電話若しくは携帯電話部品、コンピューター若しくはテレビ部品、プリンター部品又はコピー部品として用いるための物品である、請求項1に記載のポリマー性発泡複合材料。
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Application Number | Priority Date | Filing Date | Title |
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JP2023135886A JP2023155325A (ja) | 2017-12-01 | 2023-08-23 | 発泡性アクリル組成物 |
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US201762593460P | 2017-12-01 | 2017-12-01 | |
US62/593,460 | 2017-12-01 | ||
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WO2019108721A1 (en) * | 2017-12-01 | 2019-06-06 | Arkema Inc | Foamable acrylic composition |
CN113056356A (zh) * | 2018-11-19 | 2021-06-29 | 阿科玛法国公司 | 具有改善的表面特性的丙烯酸类复合物 |
PL4010410T3 (pl) * | 2019-08-08 | 2023-10-02 | Evonik Operations Gmbh | Sposób wytwarzania pianek sztywnych z polimetakrylanu metylu jako materiałów rdzeniowych w łopatach wirnikowych siłowni wiatrowych i w budowie łodzi |
CN117062860A (zh) | 2021-01-27 | 2023-11-14 | 泽费罗斯股份有限公司 | 低气味可热膨胀材料 |
FR3141180A1 (fr) * | 2022-10-25 | 2024-04-26 | Arkema France | Composition (méth)acrylique, matériau en mousse obtenu à partir d’une telle composition, procédé de production de ladite composition et de ladite mousse, et leurs utilisations |
CN116496489B (zh) * | 2023-06-30 | 2023-09-05 | 富海(东营)新材料科技有限公司 | 一种多功能半芳香尼龙的制备工艺 |
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JP2023155325A (ja) | 2023-10-20 |
JP2021504549A (ja) | 2021-02-15 |
CN111566154A (zh) | 2020-08-21 |
US12012510B2 (en) | 2024-06-18 |
US20230279214A1 (en) | 2023-09-07 |
EP3717554A4 (en) | 2022-01-12 |
WO2019108721A1 (en) | 2019-06-06 |
KR20200085910A (ko) | 2020-07-15 |
EP3717554A1 (en) | 2020-10-07 |
MX2020005744A (es) | 2020-08-20 |
CA3083524A1 (en) | 2019-06-06 |
BR112020010880A2 (pt) | 2020-11-10 |
US20200385564A1 (en) | 2020-12-10 |
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