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1. 发明专利

JP2009018265A Two liquids contact type non-mixing nozzle for coating, method of coating two liquids type adhesive and method of fixing anchor bolt using the same 有权
标题翻译：两种液体接触型非混合喷嘴用喷涂方法，涂布两种液体粘合剂的方法和使用其固定锚固螺栓的方法
公开(公告)号：JP2009018265A
公开(公告)日：2009-01-29
申请号：JP2007183607
申请日：2007-07-12
申请人： Cemedine Co Ltd , Jr Soken Engineering:Kk , Railway Technical Res Inst , Shoei Yakuhin Kk , セメダイン株式会社 , 昭栄薬品株式会社 , 株式会社ジェイアール総研エンジニアリング , 財団法人鉄道総合技術研究所
发明人： TOTTORI SEIICHI , YAGUCHI NAOYUKI , TATEMATSU EISHIN , TAKEUCHI YOSHIAKI , NAGANO HIROTERU , SOMEMIYA TOSHIO , KISHIMOTO MASAAKI
IPC分类号： B05C5/00 , B05C11/10 , B05C17/01 , B05D7/24 , C09J5/00
摘要： PROBLEM TO BE SOLVED: To provide a novel two liquids contact type non-mixing nozzle for coating having a simple structure, and capable of coating a two liquids type adhesive with ease and at a low cost, which can discharge the two liquids type adhesive as in an each-other-contacting but non-mixing state.
SOLUTION: The two liquids contact type non-mixing nozzle for coating to be attached to a tip of an apparatus for coating a two liquid type adhesive includes a nozzle main body having discharging paths which is provided as penetrated in a longitudinal direction for letting through an A agent from a first discharging opening and a B agent from a second discharging opening, and a discharging hole which is provided as communicating with the discharging path for discharging the A agent and the B agent, wherein the structural viscosity index of the A agent and the B agent is not less than 1.5 and the viscosity is 10-500 Pa s, the A agent and B agent keep a contact state and a non-mixing state each other in the nozzle main body, and are discharged as in the contact state and the non-mixing state each other.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有简单结构的新颖的用于涂层的液体接触型非混合喷嘴，并且能够容易地并且以低成本涂布两种液体型粘合剂，这可以排出两种液体类型的粘合剂，如在每个其他接触但非混合状态。解决方案：两个液体接触型非混合喷嘴用于涂覆在用于涂布两液体型粘合剂的装置的末端，包括喷嘴主体，其具有沿纵向穿透的排放路径，用于通过来自第一排出口的A剂和来自第二排出口的B剂，以及与排出A剂和B剂的排出路径连通而设置的排出孔，其中， A剂和B剂不小于1.5，粘度为10-500Pa·s，A剂和B剂在喷嘴主体中保持接触状态和非混合状态，并排放如接触状态和非混合状态。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2007051464A Concrete structure body and construction method of the concrete structure body 审中-公开
标题翻译：混凝土结构体的混凝土结构体与施工方法
公开(公告)号：JP2007051464A
公开(公告)日：2007-03-01
申请号：JP2005237317
申请日：2005-08-18
申请人： Fatec:Kk , Jr Soken Engineering:Kk , Kumagai Gumi Co Ltd , Railway Technical Res Inst , 株式会社ジェイアール総研エンジニアリング , 株式会社ファテック , 株式会社熊谷組 , 財団法人鉄道総合技術研究所
发明人： MATSUDA SATOSHI , IWAI TAKAYUKI , SATO KOICHI , YAGUCHI NAOYUKI , MIZUNO KIYOSHI , KOYAMA HIDENORI
IPC分类号： E21D11/00 , C04B41/71
摘要： PROBLEM TO BE SOLVED: To provide a concrete structure body and a construction method of the concrete structure body capable of shortening a construction time of the concrete structure body having a coating layer on the surface of a concrete structure.
SOLUTION: In the concrete structure body 1 formed of the concrete structure 2, a primer 4 provided on the surface 3 of the concrete structure 2 and the coating layer 6 formed on the surface 5 of the primer 4, both of the primer 4 and the coating layer 6 have optical hardening properties, and the primer 4 and the coating layer 6 are hardened by light to combine the concrete structure 2 with the primer 4 and the coating layer 6.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够缩短混凝土结构表面上具有涂层的混凝土结构体的施工时间的混凝土结构体和施工方法。解决方案：在由混凝土结构2形成的混凝土结构体1中，设置在混凝土结构体2的表面3上的底漆4和形成在底漆4的表面5上的涂层6，两个底漆 4和涂层6具有光学硬化性能，底漆4和涂层6通过光硬化，从而将混凝土结构2与底漆4和涂层6结合起来。（C）2007， JPO＆INPIT

3. 发明专利

JP2010132193A Piezoelectric member, mobile body detector and power generator 有权
标题翻译：压电元件，移动体检测器和发电机
公开(公告)号：JP2010132193A
公开(公告)日：2010-06-17
申请号：JP2008311444
申请日：2008-12-05
申请人： Railway Technical Res Inst , 財団法人鉄道総合技術研究所
发明人： MAMADA SHOGO , YAGUCHI NAOYUKI , SUZUKI MINORU , HANSAKA MASANORI
IPC分类号： B61L1/06 , H01L41/113 , H01L41/187 , H01L41/257 , H01L41/37 , H01L41/39 , H02N2/00 , H02N2/18
摘要： PROBLEM TO BE SOLVED: To provide a piezoelectric member reduced in cost by its simple structure and enhanced in safety, and also to provide a mobile body detector and a power generator. SOLUTION: A piezoelectric member 12 is a member for converting oscillation generated when a train 3 passes on a track 6 into an electric signal by the piezoelectric effect. The piezoelectric member 12 functions as a mechanical-electrical conversion unit for converting the mechanical oscillation generated when the train 3 passes into the electric signal, and also functions as a sensor for detecting the train 3 by generating electric power when a load is applied thereon by the passing of the train 3. The piezoelectric member 12 is inserted between a rail 7R and a supporter 8, and is a piezoelectric track pad for converting the oscillation into the electric signal. A piezoelectric rubber part 12a is a member in which a piezoelectric material is dispersed in a rubber. The piezoelectric rubber part 12a is manufactured, for example, by vulcanizing a mixture of a rubber material such as nitrile rubber and piezoelectric ceramic powder, and applying a voltage to both ends of the mixture to polarize the mixture. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决的问题：通过简单的结构和安全性提高成本降低的压电元件，并且还提供一种移动体检测器和发电机。解决方案：压电构件12是用于将轨道3通过压电效应而在轨道6上产生的振荡转换成电信号的构件。压电元件12用作机电转换单元，用于转换在列车3通过电信号时产生的机械振荡，并且还用作用于通过在负载施加到其上时通过产生电力来产生电力来检测列车3的传感器列车3的通过。压电元件12插入轨道7R和支撑件8之间，并且是用于将振荡转换为电信号的压电轨道焊盘。压电橡胶部分12a是将压电材料分散在橡胶中的部件。压电橡胶部12a例如通过硫化橡胶材料如丁腈橡胶和压电陶瓷粉末的混合物，并向混合物的两端施加电压以使混合物极化。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2008108762A Piezoelectric material and manufacturing method thereof, damping device, and drive unit 有权
标题翻译：压电材料及其制造方法，阻尼装置和驱动单元
公开(公告)号：JP2008108762A
公开(公告)日：2008-05-08
申请号：JP2006287180
申请日：2006-10-23
申请人： Railway Technical Res Inst , 財団法人鉄道総合技術研究所
发明人： MAMADA SHOGO , YAGUCHI NAOYUKI , SUZUKI MINORU , HANSAKA YUKINORI
IPC分类号： F16F15/02 , F16F15/04 , H01L41/08 , H01L41/09 , H01L41/187 , H01L41/193 , H01L41/22 , H01L41/257 , H01L41/37 , H01L41/43
摘要： PROBLEM TO BE SOLVED: To provide a flexible piezoelectric material capable of improving piezoelectric effect with a simple structure, to provide a method of manufacturing the piezoelectric material, to provide a damping device, and to provide a drive unit. SOLUTION: The piezoelectric material 1 is a member, where a plurality of piezoelectric particles 2 are dispersed into a medium 3. The piezoelectric material 1 is manufactured by, for example, dispersing the piezoelectric particle 2, such as lead zirconate titanate, into the medium 3 with flowability, such as uncured silicone rubber, before the medium 3 is heated and cured by applying a voltage V to the medium 3. As a result, the piezoelectric particles 2 are oriented continuously in the direction of an electric field E so that the direction of the electric field E applied to the medium 3 becomes the same as the polarization direction of the plurality of piezoelectric particles 2. Therefore, polarizability in the orientation direction of the piezoelectric particles 2 becomes higher than that in conventional piezoelectric rubber, the large electric field E is generated when mechanical stress is applied and large strain is generated when the electric field E is applied, and hence large piezoelectric effect can be obtained. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种能够以简单的结构提高压电效应的柔性压电材料，提供制造压电材料的方法，以提供阻尼装置，并提供驱动单元。解决方案：压电材料1是将多个压电体2分散在介质3中的部件。压电材料1例如通过将压电体2如锆钛酸铅分散，在通过向介质3施加电压V来加热和固化介质3之前，将诸如未固化硅橡胶的流动性的介质3加入到介质3中。结果，压电颗粒2沿电场E的方向使得施加到介质3的电场E的方向变得与多个压电体2的偏振方向相同。因此，压电体2的取向方向的极化率比现有的压电橡胶高，当施加机械应力时产生大电场E，并且在施加电场E时产生大的应变，因此大可以获得压电效应。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2006022145A Polyvinyl alcohol-based hydrogel-forming composition and hydrogel 审中-公开
标题翻译：基于聚乙烯醇的水凝胶组合物和水凝胶
公开(公告)号：JP2006022145A
公开(公告)日：2006-01-26
申请号：JP2004199177
申请日：2004-07-06
申请人： Integrated Geotechnology Institute Ltd , Kajima Corp , Kuraray Co Ltd , Railway Technical Res Inst , Tenox Corp , 株式会社クラレ , 株式会社テノックス , 株式会社複合技術研究所 , 財団法人鉄道総合技術研究所 , 鹿島建設株式会社
发明人： ISE TOMOKAZU , KUSUDO KAZUMASA , TATEYAMA MASARU , YAGUCHI NAOYUKI , KAWABATA JUNICHI , OZAWA KAZUYOSHI , YAMADA TAKEMINE , KANAGUCHI YOSHITANE , HIRAYAMA YUJI , TAMURA YUKIHIKO
IPC分类号： C08L29/04 , C08K5/07 , C08K5/098 , C08K5/16
摘要： PROBLEM TO BE SOLVED: To provide a polyvinyl alcohol-based hydrogel-forming composition excellent in workability because of forming a gel in a few minutes to a few days, even when left to stand outdoors, and having water resistance, even when the formed hydrogel exists in an acidic region, and to provide a polyvinyl alcohol-based hydrogel.
SOLUTION: This polyvinyl alcohol-based hydrogel-forming composition contains polyvinyl alcohol (A), a water-soluble transition metal compound (B), and water (C) as main constituents, wherein the composition satisfies requisites (1) to (3) as follows: (1) the component (A) is contained in a ratio of 0.5-10 mass % based on a total amount of the components (A), (B), and (C); (2) a molar ratio [(A):(B)] of (A) vinyl alcohol units of the component (A) to (B) transition metal atoms contained in the component (B) is in a range of 1:0.01 to 1:1.0; and (3) the component (A) has a polymerization degree of ≥500. The polyvinyl alcohol-based hydrogel is formed out of the gel-forming composition.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：待解决的问题：为了提供在几分钟至几天内形成凝胶的加工性优异的聚乙烯醇系水凝胶形成组合物，即使在室外静置时也具有耐水性，即使形成的水凝胶存在于酸性区域中，并提供聚乙烯醇系水凝胶。解决方案：该聚乙烯醇类水凝胶形成组合物含有聚乙烯醇（A），水溶性过渡金属化合物（B）和水（C）作为主要成分，其中组合物满足条件（1）〜（3）如下：（1）以成分（A），（B）和（C）的总量计，成分（A）的含量为0.5〜10质量％（2）成分（A）〜（B）中的（A）乙烯醇单元的摩尔比[（A）:( B）]成分（B）中所含的过渡金属原子的摩尔比为1:0.01 至1：1.0; 和（3）组分（A）的聚合度≥500。由凝胶形成组合物形成聚乙烯醇类水凝胶。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2006061791A Washing device, washing method and washing particle for railroad vehicle 审中-公开
标题翻译：洗涤装置，洗涤方法和洗涤颗粒用于铁路车辆
公开(公告)号：JP2006061791A
公开(公告)日：2006-03-09
申请号：JP2004245620
申请日：2004-08-25
申请人： Railway Technical Res Inst , 財団法人鉄道総合技術研究所
发明人： ENARI TAKAFUMI , TANAKA MAKOTO , YAGUCHI NAOYUKI , SUZUKI MINORU
IPC分类号： B08B7/00 , B08B3/02 , B60S3/04
摘要： PROBLEM TO BE SOLVED: To provide a washing device, a washing method and washing particles for railroad vehicles having little influence on environment, and removing dirt attached to recessed parts of irregular faces at low cost. SOLUTION: When water F is sprayed from a nozzle 7d of a spray device 7, washing particles C in the spray water F impinge on the uneven face 3a of an outer plate 3 of the vehicle 2. The washing particles C can intrude into the recessed parts of the uneven face 3a, and easily intrude into the recessed parts of the uneven face 3a even if a spray pressure of the water F is low, and impinge on the surface of the recessed parts, as the water F can impinge on the surfaces of the recessed parts. Dirt D like iron oxide attached to the recessed parts of the uneven face 3a is removed from the recessed parts by the action of a physical force like shearing force applied to the dirt D, caused by impingement of the washing particles C on the dirt D. This washing results to dispense with high pressure spraying of the washing particles C onto the outer plate 3, to prevent intrusion of water into the vehicles or equipment through gaps of the vehicle 2. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种对环境影响小的铁路车辆的洗涤装置，洗涤方法和洗涤颗粒，以低成本除去附着在凹凸部的凹陷部分上的污物。解决方案：当从喷雾装置7的喷嘴7d喷射水F时，喷雾水F中的洗涤颗粒C撞击车辆2的外板3的不平坦面3a上。洗涤颗粒C可以侵入即使在水F的喷射压力低的情况下，即使水F能够撞击到凹部的表面，也能够容易地侵入凹凸面3a的凹部，在凹陷部分的表面上。附着在不平坦面3a的凹陷部分上的污垢D氧化铁通过由洗涤颗粒C撞到污垢D而引起的施加到污物D上的物理力的作用被从凹部中除去。这种洗涤结果是免除了将洗涤颗粒C高压喷射到外板3上，以防止车辆或车辆通过车辆2的间隙将水侵入车辆或设备中。（C）2006年，JPO＆NCIPI

7. 发明专利

JP2004052256A Cutoff separator 审中-公开
公开(公告)号：JP2004052256A
公开(公告)日：2004-02-19
申请号：JP2002207645
申请日：2002-07-17
申请人： Integrated Geotechnology Institute Ltd , Kuraray Co Ltd , Railway Technical Res Inst , 株式会社クラレ , 株式会社複合技術研究所 , 財団法人鉄道総合技術研究所
发明人： YAGUCHI NAOYUKI , TATEYAMA MASARU , HANAMORI ICHIRO , IZUMI SHUNSUKE , TAMURA YUKIHIKO
IPC分类号： E02D31/02 , E04G17/065
摘要： PROBLEM TO BE SOLVED: To provide a cutoff separator which has a favorable work executive workability and of which the cutoff effect is not affected by intrusion of sea water.
SOLUTION: The cutoff separator is arranged between forms 4, 5 which a concrete form confronts. A bar-shaped separator 1 fixes the distance between the forms 4, 5 in an arbitrary pitch. The surface layer of a flange member 2 of at least a part of the bar-shaped separator 1 has a cutoff function part constituted of a ethylene-vinyl acetate copolymer composition 3 which has a mass ratio of (A)/(B)=0.2-5, wherein, (A) is ethylene-vinyl acetate copolymer containing 80-99 mass % of vinyl acetate, and (B) is ethylene-vinyl acetate copolymer containing 50-70 mass % of vinyl acetate.
COPYRIGHT: (C)2004,JPO

8. 发明专利

JP2002371278A Polymer material for improving ground or earth and sand, and improved ground or improved earth and sand obtained by using the same 审中-公开
标题翻译：用于改善地面或土地和砂土的聚合物材料，以及改进的地面或改进的地球和使用它的砂
公开(公告)号：JP2002371278A
公开(公告)日：2002-12-26
申请号：JP2001182183
申请日：2001-06-15
申请人： Integrated Geotechnology Institute Ltd , Kuraray Co Ltd , Railway Technical Res Inst , 株式会社クラレ , 株式会社複合技術研究所 , 財団法人鉄道総合技術研究所
发明人： YAGUCHI NAOYUKI , TATEYAMA MASARU , TARUMI HISASHI , HANAMORI ICHIRO , IZUMI SHUNSUKE , ISE TOMOKAZU , SHIROTANI YASUHIRO , TAMURA YUKIHIKO
IPC分类号： E02D3/12 , C09K17/20 , C09K17/24 , C09K103/00
摘要： PROBLEM TO BE SOLVED: To provide a polymer material for improving the ground or earth and sand which gives a flexible structure exhibiting high strength and excellent water-shielding properties and capable of following deformation or distortion caused by oscillation by an earthquake, passage of a vehicle, or the like, the polymer material comprising an aqueous solution of a polymer to be directly poured into the ground or mixed with earth and sand with stirring.
SOLUTION: The polymer material for improving the ground or earth and sand comprises an aqueous solution of a polymer to be mixed with earth and sand or poured into the ground, the aqueous solution of a polymer having a (Y)/(X) value of at least 0.8 and a (Z)/(X) value of at most 0.7 where (X) is a slump value just after prepared, (Y) is a slump value after kept at 20°C for 1 hr and (Z) is a slump value after kept at 20°C for 100 hr.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种用于改善磨土或砂土的聚合物材料，其提供具有高强度和优异的水屏蔽性能的柔性结构，并且能够引起由地震引起的变形或变形，车辆的通过等等，所述聚合物材料包含要直接倒入地下的聚合物的水溶液或与搅拌的土和沙子混合的聚合物材料。解决方案：用于改善磨土或砂土的聚合物材料包括与土和沙混合或倾倒在地下的聚合物的水溶液，具有（Y）/（X）值为至少0.8和（Z）/（X）值至多为0.7，其中（X）是刚制备后的坍落度值，（Y）是在20℃保持1小时后的坍落度值，（Z）在20℃下保持100小时后的坍落度值。

9. 发明专利

JP2011026806A Ground surface protective sheet 有权
标题翻译：地面保护片
公开(公告)号：JP2011026806A
公开(公告)日：2011-02-10
申请号：JP2009172237
申请日：2009-07-23
申请人： Railway Technical Res Inst , Taiyo Kogyo Corp , 太陽工業株式会社 , 財団法人鉄道総合技術研究所
发明人： YAGUCHI NAOYUKI , MAMADA SHOGO , SUZUKI MINORU , MASUO TAKAYUKI , MITSUYOSHI MASAHIDE
IPC分类号： E01H11/00
摘要： PROBLEM TO BE SOLVED: To provide a ground surface protective sheet laid on a slope face or the like and excelling in stripping strength, durability, etc.
SOLUTION: The ground surface protective sheet 1 laid on the ground surface to prevent the infiltration of rainwater and the growth of weeds includes a first impervious weed-proof sheet 10 made of olefin-based thermoplastic rubber and grounded on the ground surface; dimension stabilizing cloth 11 laminated on the first impervious weed-proof sheet 10 to suppress the expansion of the ground surface protective sheet 1; a second impervious weed-proof sheet 12 made of olefin-based thermoplastic rubber and laminated on the dimension stabilizing cloth 11; and artificial turf foundation cloth 13 laminated on the second impervious weed-proof sheet 12 and having artificial piles 14 inserted in the surface. The olefin-based thermoplastic rubber forming the first and second impervious weed-proof sheets 10, 12 are FPA (flexible polymer alloy), and the dimension stabilizing cloth 11 is formed of a woven fabric with a porosity of 15% or more and preferably fused to the first and second impervious weed-proof sheets 10, 12.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供铺设在斜面等上的地面保护片，剥离强度，耐久性等优异。解决方案：将地面保护片1放置在地面上至防止雨水渗透，杂草生长包括由基于烯烃的热塑性橡胶制成的第一不透水防草片10，并在地面上接地; 尺寸稳定布11层叠在第一防渗性防粘片10上，以抑制地面保护片1的膨胀; 层压在尺寸稳定织物11上的由烯烃类热塑性橡胶制成的第二不透水防杂片12; 和层叠在第二不透水性防草片12上并具有插入表面的人造绒布14的人造草皮基布13。形成第一和第二不透水防杂片10,12的烯烃类热塑性橡胶是FPA（柔性聚合物合金），尺寸稳定布11由孔隙率为15％以上的机织织物形成，优选熔融第一和第二防渗层10,12。版权所有（C）2011，JPO＆INPIT

10. 发明专利

JP2005087990A Water impervious material injection type water impervious work, system, and polyvinyl alcohol-system injection type water impervious material 有权
标题翻译：水不正确的材料注射类型水不正确的工作，系统和聚乙烯醇系统注入类型的水不正确的材料
公开(公告)号：JP2005087990A
公开(公告)日：2005-04-07
申请号：JP2004231509
申请日：2004-08-06
申请人： Kajima Corp , Kuraray Co Ltd , Railway Technical Res Inst , 株式会社クラレ , 財団法人鉄道総合技術研究所 , 鹿島建設株式会社
发明人： OZAWA KAZUYOSHI , KAWABATA JUNICHI , KOBAYASHI TOSHIAKI , SHIROTANI YASUHIRO , ISE TOMOKAZU , KUSUDO KAZUMASA , TATEYAMA MASARU , YAGUCHI NAOYUKI
IPC分类号： E02B7/02 , B09B1/00
摘要： PROBLEM TO BE SOLVED: To provide a water impervious material injection type water impervious work causing little uneven solidification, and a polyvinyl alcohol-system injection type water impervious material.
SOLUTION: A plurality of layers of water impervious sheets 6a, 6b are laid with circumferential edges closely brought into contact with the ground face 1 where a load is set, a space d is secured between the adjacent water impervious sheets 6a, 6b against the load by using a porous spacer 7, and a polyvinyl alcohol-based impervious material aqueous solution 10 with adjustable gelation time t by pH is injected into the gap d. Preferably, the aqueous solution 10 has a pH value making the gelation time t equal to or longer than a solution charging time t
0 into the gap d, and the gap d is evacuated when the aqueous solution 10 is injected. One of examples of the water impervious material is an aqueous solution 10 in which a polyvinyl alcohol-based polymer of the degree of polymerization of 500 or more, a water soluble crosslinking agent having in its molecules two or more methylol groups, and a pH adjusting agent are dissolved. The degree of polymerization, polymer concentration and the mole ratio of the methylol groups to the vinyl alcohol unit in the polymer impart given water impervious properties to the water impervious gel.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供不透水凝固的不透水材料注射型防水工作，以及聚乙烯醇系注射型防水材料。解决方案：多层不透水片材6a，6b被铺设成周边边缘紧密地与放置负载的接地面1接触，空间d固定在相邻的不透水片材6a，6b之间通过使用多孔隔离物7与负载相反，并且通过pH将具有可调凝胶时间t的聚乙烯醇类不透水材料水溶液10注入到间隙d中。优选地，水溶液10具有使间隙d中的凝胶化时间t等于或长于溶液充填时间t 0 的pH值，并且当水溶液10为注射。防水材料的一个例子是水溶液10，其中聚合度为500以上的聚乙烯醇类聚合物，其分子中具有两个或更多个羟甲基的水溶性交联剂和pH调节药剂溶解。聚合物的聚合度，聚合物浓度以及聚合物中羟甲基与乙烯醇单元的摩尔比赋予防水凝胶给予不透水性。版权所有（C）2005，JPO＆NCIPI

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