-
公开(公告)号：US5587246A
公开(公告)日：1996-12-24
申请号：US450149
申请日：1995-05-26
CPC分类号： C08F8/30 , Y10T428/31895 , Y10T428/31906
摘要： The present invention provides a water-resistant surface coating formulation comprising a reaction product obtained by subjecting an acrylamide polymer to a crosslinking reaction with 0.1 to 20 parts by mole, per 100 parts by mole of amido groups in the acrylamide polymer, of a glyoxalmonoureine; a method for improving the water resistance of paper by using the formulation; and coated paper so obtained. As a result of improved water resistance of the coating formulation, this invention makes it possible to conduct coating work stably.
-
公开(公告)号：US5470918A
公开(公告)日：1995-11-28
申请号：US248183
申请日：1994-05-24
CPC分类号： C08F8/30 , Y10T428/31895 , Y10T428/31906
摘要： The present invention provides a water-resistant surface coating formulation comprising a reaction product obtained by subjecting an acrylamide polymer to a crosslinking reaction with 0.1 to 20 parts by mole, per 100 parts by mole of amido groups in the acrylamide polymer, of a glyoxalmonoureine; a method for improving the water resistance of paper by using the formulation; and coated paper so obtained. As a result of improved water resistance of the coating formulation, this invention makes it possible to conduct coating work stably.
摘要翻译： 本发明提供了一种防水表面涂层制剂，其包含通过使丙烯酰胺聚合物进行交联反应而获得的反应产物，所述交联反应是每100份（摩尔）丙烯酰胺聚合物中的酰胺基为乙二醛单烯酸的0.1至20份摩尔; 通过使用该配方提高纸的耐水性的方法; 和如此获得的涂布纸。 作为涂料配方的耐水性提高的结果，本发明使得可以稳定地进行涂布。
-
公开(公告)号：US5942573A
公开(公告)日：1999-08-24
申请号：US881372
申请日：1997-06-24
IPC分类号： C08F220/56 , C08F228/00 , D21H17/37 , D21H21/18 , C08L33/26 , C08L41/00
CPC分类号： D21H17/375 , C08F220/56 , D21H21/18
摘要： Provided by this invention are an acrylamide polymer which has a weight-average molecular weight (a) of from 1,500,000 to 10,000,000 and a weight-average inertial radius (b) of from 30 to 150 nm, the ratio (b)/(a) of the weight-average inertial radius (b) to the weight-average molecular weight (a) being 0.00004 or smaller; and an aqueous solution of an acrylamide polymer which solution has a polymer concentration ranging from 22 to 60%, a Brookfield viscosity at 25.degree. C. of 50,000 cps or smaller and a weight-average molecular weight of from 500,000 to 10,000,000. They are useful as paper strength agents.
摘要翻译： 本发明提供的重均分子量（a）为1,500,000至10,000,000，重均平均惯性半径（b）为30至150nm，比例（b）/（a） 的重均分子量（a）为0.00004以下; 丙烯酰胺聚合物的水溶液，其聚合物浓度为22〜60％，25℃下的Brookfield粘度为50,000cps以下，重均分子量为500,000〜10,000,000。 它们作为纸张强度剂是有用的。
-
公开(公告)号：US5627249A
公开(公告)日：1997-05-06
申请号：US363268
申请日：1994-12-23
IPC分类号： C08F220/56 , C08F228/00 , D21H17/37 , D21H21/18 , C08F228/02
CPC分类号： D21H17/375 , C08F220/56 , D21H21/18
摘要： Provided by this invention are an acrylamide polymer which has a weight-average molecular weight (a) of from 1,500,000 to 10,000,000 and a weight-average inertial radius (b) of from 30 to 150 nm, the ratio (b)/(a) of the weight-average inertial radius (b) to the weight-average molecular weight (a) being 0.00004 or smaller; and an aqueous solution of an acrylamide polymer which solution has a polymer concentration ranging from 22 to 60%, a Brookfield viscosity at 25.degree. C. of 50,000 cps or smaller and a weight-average molecular weight of from 500,000 to 10,000,000. They are useful as paper strength agents.
摘要翻译： 本发明提供的重均分子量（a）为1,500,000至10,000,000，重均平均惯性半径（b）为30至150nm，比例（b）/（a） 的重均分子量（a）为0.00004以下; 丙烯酰胺聚合物的水溶液，其聚合物浓度为22〜60％，25℃下的Brookfield粘度为50,000cps以下，重均分子量为500,000〜10,000,000。 它们作为纸张强度剂是有用的。
-
公开(公告)号：US06255400B1
公开(公告)日：2001-07-03
申请号：US09197530
申请日：1998-11-23
申请人： Hiroshi Itoh , Susumu Oyama , Takashi Yodoya , Kenji Tsuboi , Tsugio Matsubara , Kenichi Nakamura , Hirotoshi Doki , Shinya Yamagami , Toshiki Oyanagi , Kenzo Seita
发明人： Hiroshi Itoh , Susumu Oyama , Takashi Yodoya , Kenji Tsuboi , Tsugio Matsubara , Kenichi Nakamura , Hirotoshi Doki , Shinya Yamagami , Toshiki Oyanagi , Kenzo Seita
IPC分类号： C08F26710
CPC分类号： D21H21/18 , C08F273/00 , C09D151/00 , D21H17/375 , D21H17/42 , D21H17/44 , D21H21/10 , D21H21/20
摘要： A polymer (B) is prepared by polymerizing one or more vinyl monomers (c) in the presence of a polymer (A) prepared by polymerizing one or more vinyl monomers (a) selected from the group consisting of vinyl monomers represented by the general formula (1): wherein R1 represents a hydrogen atom or a lower alkyl with 1 to 3 carbon atoms and n is an integer of 1 to 8 and their salts with one or more vinyl monomers (b) which are co-polymerizable with the vinyl monomer components (a).
摘要翻译： 聚合物（B）通过在一种或多种乙烯基单体（a）聚合制备的聚合物（A）的存在下聚合制备，所述乙烯基单体（a）选自由通式 （1）表示：其中R1表示氢原子或碳原子数1〜3的低级烷基，n表示1〜8的整数，并且与一种或多种与乙烯基单体共聚的乙烯基单体（b） 组分（a）。
-
公开(公告)号：US5489626A
公开(公告)日：1996-02-06
申请号：US344601
申请日：1994-11-18
CPC分类号： C04B24/2652 , C08F8/44 , C04B2103/30
摘要： A hydraulic cement composition comprising as an effective component a water-soluble amphoteric polymer obtained by Hofmann degradation reaction of an .alpha.,.beta.-unsaturated carbonamide polymer or a copolymer of .alpha.,.beta.-unsaturated carbonamide and an anionic monomer having a weight average molecular weight of 1,000-1,000,000.The primary amino group produced as a result of the Hofmann degradation reaction provides excellent cement dispersing capabilities.
摘要翻译： 一种水硬性水泥组合物，其包含通过α，β-不饱和碳酰胺聚合物或α，β-不饱和碳酰胺与阴离子单体的共聚物Hofmann降解反应获得的水溶性两性聚合物作为有效成分，其重均分子量为 1,000-1,000,000。 由于霍夫曼降解反应产生的伯氨基提供了极好的水泥分散能力。
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.022 秒)
