JP2022500236A - 微多孔膜を処理する方法 - Google Patents
微多孔膜を処理する方法 Download PDFInfo
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- JP2022500236A JP2022500236A JP2021513796A JP2021513796A JP2022500236A JP 2022500236 A JP2022500236 A JP 2022500236A JP 2021513796 A JP2021513796 A JP 2021513796A JP 2021513796 A JP2021513796 A JP 2021513796A JP 2022500236 A JP2022500236 A JP 2022500236A
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- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 description 1
- MMZPUXVBQAQQDQ-UHFFFAOYSA-N triethoxy(2-pyridin-4-ylethyl)silane Chemical compound CCO[Si](OCC)(OCC)CCC1=CC=NC=C1 MMZPUXVBQAQQDQ-UHFFFAOYSA-N 0.000 description 1
- QQQSFSZALRVCSZ-UHFFFAOYSA-N triethoxysilane Chemical compound CCO[SiH](OCC)OCC QQQSFSZALRVCSZ-UHFFFAOYSA-N 0.000 description 1
- YUYCVXFAYWRXLS-UHFFFAOYSA-N trimethoxysilane Chemical compound CO[SiH](OC)OC YUYCVXFAYWRXLS-UHFFFAOYSA-N 0.000 description 1
- SZYJELPVAFJOGJ-UHFFFAOYSA-N trimethylamine hydrochloride Chemical compound Cl.CN(C)C SZYJELPVAFJOGJ-UHFFFAOYSA-N 0.000 description 1
- 229920001862 ultra low molecular weight polyethylene Polymers 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
本発明は、微多孔膜の表面を処理する方法、および処理された微多孔膜に関する。本発明はまた、水性処理用組成物に関する。
米国では毎年、油井およびガス井により、何十億ガロンもの一緒に生成した水が抜き取られている。井戸からの天然「油」は、実際には、油/水/ガスの多相流体である。一般に、3つの流体のすべてが、あらゆる炭化水素井戸および井戸排出物に見出されている。
本発明は、微多孔膜の表面を処理する方法であって、前記膜が、ポリオレフィンポリマーマトリックス;該マトリックス全体に分布した、微細粒子状の、実質的に水不溶性の無機充填剤;および微多孔膜全体に連通している相互連結性細孔のネットワークを含み、前記方法が、(1)膜の少なくとも1つの表面に、(a)(i)(メタ)アクリル酸モノマーおよび(ii)シラン官能性アクリルモノマーを含むビニルモノマーの混合物から調製したアクリルポリマー;ならびに(b)塩基を含む処理用組成物を接触させるステップであって、アクリルポリマーが、マトリックス中に存在する充填剤と接触している、ステップと、(2)(1)の膜を、充填剤とアクリルポリマーとの間で縮合反応をもたらすに十分な条件に供するステップとを含む、方法を対象とする。
以下の詳細説明のために、本発明は、反対のことが明示的に指定されている場合を除き、様々な代替変形形態およびステップの順序が当然ながらあり得ることを理解されたい。さらに、任意の操作例におけるもの、または特に示されている場合以外に、例えば、本明細書および特許請求の範囲において使用されている成分の量を表現する数はすべて、すべての場合において、用語「約」によって修飾されているものとして理解すべきである。したがって、特に反対の記載がない限り、以下の明細書および添付されている特許請求の範囲において説明されている数値パラメーターは、本発明により得られる所望の特性に応じて様々になり得る近似値である。少なくとも、および均等論の適用を特許請求の範囲に限定しようとするものとしてではなく、各数値パラメーターは、報告された有効桁数に照らして、および通常の四捨五入手法を適用することによって少なくとも解釈されるべきである。
M=5.37×104[η]1.37
に従い、ポリマーの固有粘度に経験的に関連している。
同様に、UHMWポリプロピレンの公称分画分子量は、以下の式:
M=8.88×104[η]1.25
に従い、ポリマーの固有粘度に経験的に関連している。
多孔度=100[1−d1/d2]
に従い求められる。試料の固形部分の体積は、添付の操作マニュアルに準拠して、Quantachrome Stereopycnometer(Quantachrome Corporation(Boynton Beach、FL))を使用して求められる。
d=2[v1r1/w1+v2r2/w2]/[v1/w1+v2/w2]
に従い計算される。
パート1.基材調製:
(実施例M−1)
(実施例M−2)
表1
2 Celanese Corporation(Irving、TX)から商業的に得られる、1モルあたり約1,050万グラムの分子量を有すると報告されている超高分子量ポリエチレン
3 Chemours Company(Wilmington、DE)から入手可能なルチル型二酸化チタン
4 Valtris Specialty Chemicals(Independence、OH)から商業的に得たステアリン酸カルシウム-亜鉛滑剤
5 BASF(Ludwigshafen、Germany)から商業的に得た酸化防止剤のブレンド
6 PPC Lubricants(Jonestown、PA)から商業的に得た加工油
パート2.アクリルポリマーの調製:
(実施例1)
表2
(実施例2)
(実施例3〜8)
パート3.処理溶液の調製
表4
9 平均分子量50,000、SigmaAldrich(St. Louis、MO)から購入
10 平均分子量360,000、SigmaAldrich(St. Louis、MO)から購入
(実施例9〜20)
パート4.膜の処理:
表5
表6
(実施例21〜22)
パート6.作製したろ過カートリッジの処理および試験:
表7
(1)膜の少なくとも1つの表面に、(a)(i)(メタ)アクリル酸モノマーおよび(ii)シラン官能性アクリルモノマーを含むビニルモノマーの混合物から調製したアクリルポリマー;ならびに(b)塩基を含む処理用組成物を接触させるステップであって、アクリルポリマーが、マトリックス中に存在する充填剤と接触しているステップと、(2)(1)の膜を、充填剤とアクリルポリマーとの間で縮合反応をもたらすに十分な条件に供するステップとを含む、方法。
Claims (28)
- 微多孔膜の表面を処理する方法であって、前記膜が、ポリオレフィンポリマーマトリックス;前記マトリックス全体に分布した、微細粒子状の、実質的に水不溶性の無機充填剤;および前記微多孔膜全体に連通している相互連結性細孔のネットワークを含み、前記方法が、
(1)前記膜の少なくとも1つの表面に、
(a)(i)(メタ)アクリル酸モノマーおよび(ii)シラン官能性アクリルモノマーを含むビニルモノマーの混合物から調製されるアクリルポリマー、ならびに
(b)塩基
を含む処理用組成物を接触させるステップであり、
前記アクリルポリマーが、前記マトリックス中に存在する前記充填剤と接触している、ステップと、
(2)前記(1)の膜を、前記充填剤と前記アクリルポリマーとの間に縮合反応をもたらすに十分な条件に供するステップと
を含む、方法。 - 前記ビニルモノマーの混合物が、(iii)N−ビニルピロリドンをさらに含む、請求項1に記載の方法。
- 前記シラン官能性アクリルモノマーが、前記ビニルモノマーの10〜80重量%を構成する、請求項1に記載の方法。
- 前記(メタ)アクリル酸モノマーが、前記ビニルモノマーの2〜20重量%を構成する、請求項1に記載の方法。
- 前記N−ビニルピロリドンが、前記ビニルモノマーの1〜60重量%を構成する、請求項2に記載の方法。
- 前記塩基がアミンを含む、請求項1に記載の方法。
- 前記塩基が、20℃で1Pa以上の蒸気圧を有する、および/または前記塩基が、前記(メタ)アクリル酸モノマーの100%〜300%の中和を達成するに十分な量で提供される、請求項1に記載の方法。
- 前記アミンが第三級アミンを含む、請求項6に記載の方法。
- 前記処理用組成物が、(c)前記アクリルポリマーとは別の親水性ポリマーをさらに含む、請求項1に記載の方法。
- 前記処理用組成物が、(d)アミノシランをさらに含む、請求項1に記載の方法。
- 前記親水性ポリマーが、多糖、ポリオキサゾリン、ポリビニルピロリドン、ポリエチレンイミン、またはそれらのいくつかの組合せを含む、請求項9に記載の方法。
- 前記アクリルポリマーが、最大で35,000の重量平均分子量(Mw)を有する、請求項1に記載の方法。
- 前記充填剤が、シリカ、アルミナ、酸化カルシウム、酸化亜鉛、酸化マグネシウム、酸化チタン、酸化ジルコニウムおよびそれらの混合物からなる群から選択される、請求項1に記載の方法。
- 前記充填剤がシリカを含む、請求項1に記載の方法。
- 前記処理用組成物が水性組成物である、請求項1に記載の方法。
- 前記処理用組成物がpH>7を有する、請求項15に記載の方法。
- 前記縮合反応をもたらすに十分な条件が、前記膜を乾燥させることを含む、請求項1に記載の方法。
- 前記乾燥させるステップが、20℃〜145℃の範囲の温度で行われる、請求項17に記載の方法。
- 前記縮合反応をもたらすに十分な条件が、前記膜を中性の水でリンスすることを含む、請求項1に記載の方法。
- 前記膜の前記少なくとも1つの表面に前記処理用組成物を接触させるステップの前に、前記膜の前記少なくとも1つの表面に親水性ポリマーを接触させるステップ
をさらに含む、請求項1に記載の方法。 - 前記親水性ポリマーが、多糖、ポリオキサゾリン、ポリビニルピロリドン、ポリエチレンイミン、またはそれらのいくつかの組合せを含む、請求項20に記載の方法。
- 前記塩基が、前記(メタ)アクリル酸モノマーの少なくとも75%の中和を達成するに十分な量で含まれる、請求項1に記載の方法。
- 請求項1に記載の方法により調製される、処理された微多孔膜。
- 前記処理用組成物に接触させられる膜がシートの形態である、請求項23に記載の処理された微多孔膜。
- 前記処理用組成物に接触させられる膜が分離デバイスの構成要素である、請求項23に記載の処理された微多孔膜。
- (a)(i)(メタ)アクリル酸モノマーおよび(ii)シラン官能性アクリルモノマーを含むビニルモノマーの混合物から調製されるアクリルポリマーと、
(b)塩基と、
(c)前記アクリルポリマーとは別の親水性ポリマーと、
必要に応じて(d)アミノシランと
を含む、水性処理用組成物。 - 前記アクリルポリマーが、前記処理用組成物の2〜10重量%を構成し、
前記塩基がアミンを含み、前記(メタ)アクリル酸モノマーの100%〜300%の中和を達成するに十分な量で存在し、
前記親水性ポリマーが、前記処理用組成物の1〜10重量%を構成し、
前記アミノシランが、前記処理用組成物の0.2〜1.5重量%を構成する、
請求項26に記載の処理用組成物。 - 前記ビニルモノマーの混合物が、(iii)N−ビニルピロリドンをさらに含む、請求項26に記載の処理用組成物。
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US16/131,775 US10888821B2 (en) | 2018-09-14 | 2018-09-14 | Method for treating a microporous membrane |
US16/131,775 | 2018-09-14 | ||
PCT/US2019/050411 WO2020055867A1 (en) | 2018-09-14 | 2019-09-10 | Method for treating a microporous membrane |
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CN116196769A (zh) | 2023-06-02 |
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