公开(公告)号：EP2949378A1

公开(公告)日：2015-12-02

申请号：EP14743699.2

申请日：2014-01-16

申请人： NOF Corporation

发明人： NAKASHIMA Mitsuyasu ,  NOMURA Hideyuki ,  YAMADA Satoshi

IPC分类号： B01D65/08 ,  B01D67/00 ,  C02F1/44 ,  C08J9/36 ,  C08L29/04 ,  C08L33/10 ,  C08L43/02

CPC分类号： B01D71/34 ,  B01D65/08 ,  B01D67/0002 ,  B01D67/0088 ,  B01D69/02 ,  B01D69/08 ,  B01D2321/168 ,  B01D2323/12 ,  B01D2323/46 ,  B01D2325/30 ,  C02F1/44 ,  C02F1/441 ,  C02F1/444 ,  C02F1/50 ,  C02F1/56 ,  C09D129/04 ,  C09D133/10 ,  C09D143/02 ,  C09K15/22 ,  Y10T156/10 ,  C08L33/10 ,  C08L43/02 ,  C08F230/02 ,  C08F2220/1825

摘要： Provided are: a fouling inhibitor that is capable of effectively inhibiting fouling of porous filtration membranes use as water purification membranes or the like, that has resistance to chemicals, such as alkali used when the membrane is fouled, and that is capable of maintaining such effects sufficiently even after chemical wash; a filtration membrane provided with the inhibitor; and a method for producing the same. The inhibitor contains:
(A) a copolymer having a weight average molecular weight of 10000 to 300000 and contains a MPC unit (a1) and a BMA unit (a2), wherein the ratio of (a1) to (a2) ((a1)/(a2)) bymole is 10/90 to 70/30; and (B) PVAhaving a saponification degree of 72 to 93 mol% and a polymerization degree of 300 to 1000, wherein the ratio of component (A) to component
(B) ((A)/(B)) by mass is 25/75 to 75/25.

摘要翻译： 提供：能够有效地抑制作为水净化膜等使用的多孔过滤膜的结垢的污垢抑制剂，其具有耐化学品的性质，例如当膜被污染时使用的碱，并且能够保持这种效果 化学洗涤后即使足够; 设置有抑制剂的过滤膜; 及其制造方法。 抑制剂含有：（A）重均分子量为10000〜300000的共聚物，含有MPC单元（a1）和BMA单元（a2），其中，（a1）〜（a2）（（a1） /（a2））的摩尔比为10/90至70/30; 和（B）PVA的皂化度为72〜93摩尔％，聚合度为300〜1000，其中组分（A）与组分（B）（（A）/（B））的质量比为25 / 75至75/25。

公开(公告)号：EP2949378B1

公开(公告)日：2018-11-28

申请号：EP14743699.2

申请日：2014-01-16

申请人： NOF Corporation

发明人： NAKASHIMA Mitsuyasu ,  NOMURA Hideyuki ,  YAMADA Satoshi

IPC分类号： B01D65/08 ,  B01D67/00 ,  C02F1/44 ,  C08J9/36 ,  C08L29/04 ,  C08L33/10 ,  C08L43/02

CPC分类号： B01D71/34 ,  B01D65/08 ,  B01D67/0002 ,  B01D67/0088 ,  B01D69/02 ,  B01D69/08 ,  B01D2321/168 ,  B01D2323/12 ,  B01D2323/46 ,  B01D2325/30 ,  C02F1/44 ,  C02F1/441 ,  C02F1/444 ,  C02F1/50 ,  C02F1/56 ,  C09D129/04 ,  C09D133/10 ,  C09D143/02 ,  C09K15/22 ,  Y10T156/10 ,  C08L33/10 ,  C08L43/02 ,  C08F230/02 ,  C08F2220/1825

摘要： Provided are: a fouling inhibitor that is capable of effectively inhibiting fouling of porous filtration membranes use as water purification membranes or the like, that has resistance to chemicals, such as alkali used when the membrane is fouled, and that is capable of maintaining such effects sufficiently even after chemical wash; a filtration membrane provided with the inhibitor; and a method for producing the same. The inhibitor contains: (A) a copolymer having a weight average molecular weight of 10000 to 300000 and contains a MPC unit (a1) and a BMA unit (a2), wherein the ratio of (a1) to (a2) ((a1)/(a2)) bymole is 10/90 to 70/30; and (B) PVAhaving a saponification degree of 72 to 93 mol% and a polymerization degree of 300 to 1000, wherein the ratio of component (A) to component (B) ((A)/(B)) by mass is 25/75 to 75/25.