JPH06510076A - 吸収性フォーム材料へ重合可能なエマルジョンの調製法 - Google Patents
吸収性フォーム材料へ重合可能なエマルジョンの調製法Info
- Publication number
- JPH06510076A JPH06510076A JP5504393A JP50439393A JPH06510076A JP H06510076 A JPH06510076 A JP H06510076A JP 5504393 A JP5504393 A JP 5504393A JP 50439393 A JP50439393 A JP 50439393A JP H06510076 A JPH06510076 A JP H06510076A
- Authority
- JP
- Japan
- Prior art keywords
- mixing zone
- water
- emulsion
- dynamic mixing
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
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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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- 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
- C08J9/283—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 a discontinuous liquid phase emulsified in a continuous macromolecular phase
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01F23/40—Mixing liquids with liquids; Emulsifying
- B01F23/41—Emulsifying
- B01F23/4105—Methods of emulsifying
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- B01F23/43—Mixing liquids with liquids; Emulsifying using driven stirrers
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/82—Combinations of dissimilar mixers
- B01F33/821—Combinations of dissimilar mixers with consecutive receptacles
- B01F33/8212—Combinations of dissimilar mixers with consecutive receptacles with moving and non-moving stirring devices
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- A61F13/00—Bandages or dressings; Absorbent pads
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- A61F13/00—Bandages or dressings; Absorbent pads
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- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F2013/530437—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a part with elevated absorption means
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- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
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- B01F23/414—Emulsifying characterised by the internal structure of the emulsion
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Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polymerisation Methods In General (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Macromonomer-Based Addition Polymer (AREA)
- Colloid Chemistry (AREA)
Abstract
Description
Claims (6)
- 1.引き続いて重合および脱水を行うことによって、潰れているが膨張可能な吸 収性フォーム材料のような吸収性のフォーム材料を形成するのに好適な高不連続 相エマルジョンの連続的製造法であって、 A)(i)実質的に水不溶性で単官能性のガラス質モノマー成分、好ましくは1 種類以上のスチレンを基材とする種類のモノマー3重量%〜41重量%、好まし くは7重量%〜40重量%と、 (ii)実質的に水不溶性で、単官能性のゴム状コモノマー成分、好ましくはブ チルアクリレート、2−エチルヘキシルアクリレート、ブタジエン、イソプレン およびこれらの種類のコモノマーから選択されるコモノマーの種類を含んでなる もの27重量%〜73重量%、好ましくは27重量%〜66重量%と、 (iii)油相中の単官能性のガラス質モノマー成分対単官能性のゴム状コモノ マー成分のモル比が、好ましくは約1:25〜1.5:1、最も好ましくは1: 2〜1:1であり、 (iv)実質的に水不溶性の架橋剤成分、好ましくはジビニルベンゼン、ジビニ ルトルエン、フタル酸ジアリルポリオールの1種類以上のジアクリル酸エステル またはそれらの二官能性モノマーの種類の組み合わせから選択される二官能性モ ノマーの種類、最も好ましくはジビニルベンゼン8重量%〜30重量%、好まし くは10重量%〜25重量%と、 (v)油相に可溶性であり、安定な油中水エマルジョンを形成させるのに好適な 乳化剤成分であって、好ましくはソルビタン脂肪酸エステル、ポリグリセロール 脂肪酸エステル、ポリオキシエチレン脂肪酸およびエステル、およびこれらの乳 化剤の組み合わせから選択される乳化剤、最も好ましくはソルビタンモノオレエ ートとソルビタントリオレエートとを含んでなり、モノオレエート対トリオレエ ートの重量比が2:1〜5:1のもの、またはソルビタンモノオレエートと乳化 助剤とであってモノオレエート対乳化助剤の重量比が1:1〜10:1であるも の2重量%〜33重量%、好ましくは4〜25重量%とを 含んでなる油相の液体供給流を提供し、B)水溶性電解質、好ましくはアルカリ 金属またはアルカリ土類金属の1種類以上の水溶性塩、最も好ましくは塩化カル シウム0.2重量%〜40重量%、好ましくは0.5重量%〜20重量%を含み 、好ましくは更に水溶性のフリーラジカル重合開始剤0.02重量%〜0.4重 量%、好ましくは0.1重量%〜0.2重量%も含む水溶液を含んでなる水相の 液体供給流を提供し、C)同時に、前記液体供給流を、導入される水相対油相の 初期収量比が2:1〜10:1、好ましくは2.5:1〜5:1となるような流 量で、動的混合ゾーンに導入し、 D)前記動的混合ゾーンにおける合わせた供給流に、好ましくは1000〜70 00psi・秒−1の速度で、最も好ましくは1500〜3000秒−1の速度 で、油相および水相流の定常的な脈動しない流量を保持しながら、前記ゾーンで 乳化混合物を少なくとも部分的に形成させるのに十分な剪断撹拌を施し、 E)前記動的混合ゾーンに導入される水対油供給流の比率を12:1〜100: 1、好ましくは20:1〜70:1の範囲内で、前記動的混合ゾーンの内容物の 乳化性状を破壊せず、前記動的混合ゾーンの乳化内容物を25℃〜70℃、好ま しくは35℃〜65℃または25℃〜60℃、最も好ましくは25℃〜50℃の 温度に保持しながら、前記ゾーンの乳化内容物に好ましくは100〜7000秒 −1の速度で、最も好ましくは1500〜3000秒−1の速度で、好ましくは ピン羽根車によって最終的に高不連続相エマルジョンを形成させ、引き続いて重 合することにより平均気泡の大きさが5〜100、好ましくは10〜90ミクロ ン、最も好ましくは5〜30ミクロンのフォームを提供するのに十分な連続的な 剪断撹拌を施しながら、絶え間なく増加させ、F)前記動的混合ゾーンの乳化し た内容物を連続的に抜き取り、前記乳化した内容物を、前記の乳化した内容物に 更に十分な剪断混合を施して、水対油相の重量比が12:1〜100:1、好ま しくは20:1〜70:1である安定な高不連続相エマルジョンを完全に形成さ せる静的混合ゾーンに連続的に導入し、 G)前記の静的混合ゾーンから連続的に前記の安定な高不連続相エマルジョンを 抜き取り、前記の安定な高不連続相エマルジョンを後で重合させ、脱水させて固 形の吸収剤フォームを形成させるようにする、工程を含んでなる、連続的製造法 。
- 2.水相液体供給流を最初に0.04〜2.0リットル/分の試験プラント規模 の流量で動的混合ゾーンに供給し、油相液体供給流を最初に約0.02〜0.2 リットル/分の試験プラント規模の流量で動的混合ゾーンに供給する、請求の範 囲第1項に記載の方法。
- 3.水対油相の比を増加した後、動的混合ゾーンからの流出液を0.8〜2.2 リットル/分の試験プラントの規模の流量で抜き取る、請求の範囲第1項または 2項に記載の方法。
- 4.水相液体供給流を最初に25〜250リットル/分の商業的規模の流量で動 的混合ゾーンに供給し、油相液体供給流を最初に10〜25リットル/分の商業 的規模の流量で動的混合ゾーンに供給する、請求の範囲第1項に記載の方法。
- 5.水対油相の比を増加した後、動的混合ゾーンからの流出液を35〜800リ ットル/分の商業的規模の流量で抜き取る、請求の範囲第4項に記載の方法。
- 6.前記の静的混合ゾーンから抜き取られた安定な高不連続相エマルジョンを、 前記の安定な高不連続相エマルジョンの油相の重合性モノマー、コモノマーおよ び架橋剤の重合を行うのに好適な条件を施し、引き続く脱水の後に、潰れた吸収 性フォーム材料であって水性体液と接触すると際膨張する材料のようなポリマー 性の吸収性フォーム材料を形成することも含んでなる、請求の範囲第1〜5項の いずれか1項に記載の方法。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
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US74394791A | 1991-08-12 | 1991-08-12 | |
US830,159 | 1992-02-03 | ||
US07/830,159 US5149720A (en) | 1991-08-12 | 1992-02-03 | Process for preparing emulsions that are polymerizable to absorbent foam materials |
PCT/US1992/006711 WO1993004093A1 (en) | 1991-08-12 | 1992-08-07 | Process for preparing emulsions that are polymerizable to absorbent foam materials |
US743,947 | 1996-11-05 |
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JPH06510076A true JPH06510076A (ja) | 1994-11-10 |
JP3236294B2 JP3236294B2 (ja) | 2001-12-10 |
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JP50439393A Expired - Lifetime JP3236294B2 (ja) | 1991-08-12 | 1992-08-07 | 吸収性フォーム材料へ重合可能なエマルジョンの調製法 |
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AU (1) | AU671806B2 (ja) |
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CA (1) | CA2114523C (ja) |
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HK (1) | HK1006574A1 (ja) |
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JPWO2009096301A1 (ja) * | 2008-02-01 | 2011-05-26 | 東亞合成株式会社 | 重合体微粒子の製造方法 |
JP5499712B2 (ja) * | 2008-02-01 | 2014-05-21 | 東亞合成株式会社 | 重合体微粒子の製造方法 |
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