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1. 发明专利

CA2831785A1 MONOFILAMENT-REINFORCED HOLLOW FIBER MEMBRANE 未知
公开(公告)号：CA2831785A1
公开(公告)日：2012-11-01
申请号：CA2831785
申请日：2011-12-22
申请人： CHEIL IND INC
发明人： SEO CHANG-MIN , LEE GYEONG-MO
IPC分类号： B01D69/08 , B01D69/10 , B01D71/26 , B01D71/30
摘要： To solve the problem of damage resulting from the presence of fibrils or lint in a membrane which uses multifilaments that arise in the prior art, the present invention comprises: a further improved membrane, in which an open-weave knitwork is spirally manufactured using a monofilament, and then the spirally manufactured open-weave knitwork is embedded into a polymer resin. The open-weave knitwork is characterized in that it is woven at a certain angle by each monofilament so as to form either a rhomboid shape or a diamond shape. The monofilament is woven on a plasticized PVA cable so as to form a knitwork, and a polymer dope for a membrane is coated on the knitwork, thereby embedding the knitwork into the polymer. The dope is then coagulated. Here, the plasticized PVA cable determines the inner diameter of the membrane. The membrane, into which the open knitwork formed as described above is embedded, is expandable (extendable) in the lengthwise direction thereof, and is expandable in the radial direction thereof, such that the membrane is biaxially expandable (extendable). That is, the membrane is flexible in the radial direction thereof and in the lengthwise direction thereof. The radial flexibility of the membrane enables the latter to be backwashed at a greater pressure than can a membrane using a multifilament in which radial expansion is nearly impossible, so as to improve backwashing efficiency.

2. 发明专利

CA2831785C MONOFILAMENT-REINFORCED HOLLOW FIBER MEMBRANE WITH CYLINDRICAL LUMEN 未知
公开(公告)号：CA2831785C
公开(公告)日：2017-08-15
申请号：CA2831785
申请日：2011-12-22
申请人： CHEIL IND INC
发明人： SEO CHANG-MIN , LEE GYEONG-MO
IPC分类号： B01D69/08 , B01D61/14 , B01D63/02 , B01D69/10 , D01D5/24 , D01F1/08
摘要： A hollow fiber membrane is formed by embedding a braid having a spiral open weave of monofilaments only, to avoid a "whiskering" problem common in prior art multifilament braid-supported tubular membranes. The open weave is characterized by contiguous, circumferential, rhomboid-shaped areas of polymer film separated by monofilaments. When the braid is supported on a plasticized PVA cable it can be infiltrated with membrane polymer which, when coagulated embeds the braid positioning it around the lumen. The spiral weave, free of any circumferentially constricting monofilament, when embedded in film, allows the membrane to be biaxially distensible. In other words, the membrane has "give" not only in the axial or longitudinal direction but also in the radial direction. "Give" in the radial direction permits soiled membranes to be backwashed under higher pressure than in a comparable braid which is not radially distensible.

3. 发明专利

AU2016200227A1 Hollow fiber membrane having a reinforced monofilament 未知
公开(公告)号：AU2016200227A1
公开(公告)日：2016-02-04
申请号：AU2016200227
申请日：2016-01-14
申请人： CHEIL IND INC , LOTTE CHEMICAL CORP
发明人： SEO CHANG-MIN , LEE GYEONG-MO
IPC分类号： B01D69/08 , B01D69/10 , B01D71/26 , B01D71/30
摘要： A hollow fiber membrane is formed by embedding a braid having a spiral open weave of monofilaments only, to avoid a "whiskering" problem common in prior art 5 multifilament braid-supported tubular membranes. The open weave is characterized by contiguous, circumferential, rhomboid-shaped areas of polymer film separated by monofilaments. When the braid is supported on a plasticized PVA cable it can be infiltrated with membrane polymer which, when coagulated embeds the braid positioning it around the lumen. The spiral weave, free of any circumferentially 10 constricting monofilament, when embedded in film, allows the membrane to be biaxially distensible. In other words, the membrane has "give" not only in the axial or longitudinal direction but also in the radial direction. "Give" in the radial direction permits soiled membranes to be backwashed under higher pressure than in a comparable braid which is not radially distensible. 7313229_1 (GHMatters) P94815.AU.1 LEANNE [Fig. 1] [Fig. 2] 7313229 1 (GHMatters) P94i

4. 发明专利

AU2011366779A1 Hollow fiber membrane having a reinforced monofilament 未知
公开(公告)号：AU2011366779A1
公开(公告)日：2013-10-24
申请号：AU2011366779
申请日：2011-12-22
申请人： CHEIL IND INC
发明人： SEO CHANG-MIN , LEE GYEONG-MO
IPC分类号： B01D69/08 , B01D69/10 , B01D71/26 , B01D71/30
摘要： To solve the problem of damage resulting from the presence of fibrils or lint in a membrane which uses multifilaments that arise in the prior art, the present invention comprises: a further improved membrane, in which an open-weave knitwork is spirally manufactured using a monofilament, and then the spirally manufactured open-weave knitwork is embedded into a polymer resin. The open-weave knitwork is characterized in that it is woven at a certain angle by each monofilament so as to form either a rhomboid shape or a diamond shape. The monofilament is woven on a plasticized PVA cable so as to form a knitwork, and a polymer dope for a membrane is coated on the knitwork, thereby embedding the knitwork into the polymer. The dope is then coagulated. Here, the plasticized PVA cable determines the inner diameter of the membrane. The membrane, into which the open knitwork formed as described above is embedded, is expandable (extendable) in the lengthwise direction thereof, and is expandable in the radial direction thereof, such that the membrane is biaxially expandable (extendable). That is, the membrane is flexible in the radial direction thereof and in the lengthwise direction thereof. The radial flexibility of the membrane enables the latter to be backwashed at a greater pressure than can a membrane using a multifilament in which radial expansion is nearly impossible, so as to improve backwashing efficiency.

5. 发明公开

EP2703067A4 HOLLOW FIBER MEMBRANE HAVING A REINFORCED MONOFILAMENT 审中-公开
标题翻译：增强与单丝中空纤维膜
公开(公告)号：EP2703067A4
公开(公告)日：2015-03-25
申请号：EP11864288
申请日：2011-12-22
申请人： CHEIL IND INC
发明人： SEO CHANG-MIN , LEE GYEONG-MO
IPC分类号： B01D69/08 , B01D69/10 , B01D71/26 , B01D71/30
CPC分类号： B01D69/08 , B01D61/145 , B01D61/147 , B01D69/02 , B01D69/082 , B01D69/087 , B01D71/34 , B01D2323/42 , B01D2325/24 , B01D2325/40 , B29C70/222 , B29K2027/16 , B29K2031/04 , B29K2069/00 , B29K2225/06 , B29K2227/06 , B29K2227/16 , B29K2231/04 , B29K2233/08 , B29K2267/00 , B29K2269/00 , B29K2277/00 , B29K2309/08 , B29K2427/16 , B29K2431/04 , B29K2469/00 , B29K2627/16 , B29K2631/04 , B29K2669/00 , B29K2827/16 , B29K2831/04 , B29K2869/00
摘要： A hollow fiber membrane is formed by embedding a braid having a spiral open weave of monofilaments only, to avoid a "whiskering" problem common in prior art multifilament braid-supported tubular membranes. The open weave is characterized by contiguous, circumferential, rhomboid-shaped areas of polymer film separated by mono filaments. When the braid is supported on a plasticized PVA cable it can be infiltrated with membrane polymer which, when coagulated embeds the braid positioning it around the lumen. The spiral weave, free of any circumferentially constricting monofilament, when embedded in film, allows the membrane to be biaxially distensible. In other words, the membrane has "give" not only in the axial or longitudinal direction but also in the radial direction. "Give" in the radial direction permits soiled membranes to be backwashed under higher pressure than in a comparable braid which is not radially distensible.

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