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1. 发明申请

US20220340697A1 POLYVINYL ALCOHOL-BASED RESIN, METHOD FOR PRODUCING POLYVINYL ALCOHOL-BASED RESIN, DISPERSING AGENT, AND DISPERSING AGENT FOR SUSPENSION POLYMERIZATION 有权
公开(公告)号：US20220340697A1
公开(公告)日：2022-10-27
申请号：US17862819
申请日：2022-07-12
申请人： MITSUBISHI CHEMICAL CORPORATION
发明人： Tomoya FUJITA , Yusuke MURAMATSU
IPC分类号： C08F118/08 , C09K23/34
摘要： The present invention relates to a polyvinyl alcohol-based resin, in which a block character (A) is less than 0.4, and an absorbance (B) at 320 nm in an ultraviolet absorption spectrum in the case of making the polyvinyl alcohol-based resin into a 0.1 wt % aqueous solution is 0.2 or more.

2. 发明授权

US09914791B2 Dispersing agent for suspension polymerization of vinyl compound 有权
公开(公告)号：US09914791B2
公开(公告)日：2018-03-13
申请号：US15116748
申请日：2015-02-04
申请人： KURARAY CO., LTD.
发明人： Yosuke Kumaki , Takeshi Kusudou , Shunsuke Fujioka
IPC分类号： C08F114/06 , C08F2/20 , C08F8/12 , C08F118/08 , C08F216/06 , C08F116/06 , B01F17/00 , C08F14/06 , C08F8/00 , C08F220/44 , C08F220/56
CPC分类号： C08F114/06 , B01F17/0028 , C08F2/20 , C08F8/00 , C08F8/12 , C08F14/06 , C08F116/06 , C08F118/08 , C08F216/06 , C08F220/44 , C08F220/56 , C08F2810/30 , C08F218/08 , C08L27/06 , C08L29/04
摘要： There is provided a dispersing agent for suspension polymerization of a vinyl compound comprising a polyvinyl alcohol with a saponification degree of 65 to 90 mol % which satisfies Formulas (1) to (3). It allows for reducing the amount of coarse particles during polymerization and can thus provide a vinyl polymer with a sharp particle size distribution and higher plasticizer absorbability. 0.4≦(MwUV/MwRI)≦0.95 (1) 3≦(MwUV/MnUV)≦12 (2) 0.1≦A220≦0.8 (3)

3. 发明申请

US20110152488A1 MONONUCLEAR STAR-BRANCHED POLYMER DIELECTRIC MATERIAL 审中-公开
标题翻译：单星星分支聚合物电介质材料
公开(公告)号：US20110152488A1
公开(公告)日：2011-06-23
申请号：US13037386
申请日：2011-03-01
申请人： Feng-Yu Yang , Mee-Yu Hsu , Shu-Hua Chan , Yu-Rung Peng , Yu-Shen Mai , Wei-Yang Chou
发明人： Feng-Yu Yang , Mee-Yu Hsu , Shu-Hua Chan , Yu-Rung Peng , Yu-Shen Mai , Wei-Yang Chou
IPC分类号： C08F118/08
CPC分类号： H01L51/052 , C08F8/12 , C08F12/22 , C08F2438/01 , C08G83/005 , H01L51/0545
摘要： A mononuclear star-branched polymer dielectric material having a repeat unit of the formula (I): A-Bn (I) wherein, A represents a multifunctional center having a functionality and a functional group with “n” arms; n is an integer greater than 2. B represents a hydrolyzed or partially hydrolyzed compound of the formula (II): wherein, X represents H or CH3; R represents H, alkyl or is selected from a group consisting of acetoxyl, t-butyl, t-butyldimethyl silyl, acid labile groups and acid stable groups; “a” is an integer from 1 to 5; y and z are molar ratio and are the numbers satisfying y+z=1, 0
摘要翻译：具有式（I）的重复单元的单核星形支链聚合物电介质材料：A-Bn（I）其中，A表示具有官能团的官能团和具有“n”个臂的官能团的多官能中心; n表示大于2的整数.B表示式（II）的水解或部分水解的化合物：其中，X表示H或CH 3; R代表H，烷基或选自乙酰氧基，叔丁基，叔丁基二甲基甲硅烷基，酸不稳定基团和酸稳定基团; “a”是从1到5的整数; y和z是摩尔比，是满足y + z = 1,0

4. 发明申请

US20090306226A1 PROCEDURES FOR OBTAINING POLYMERS DERIVED FROM VINYL ACETATE AND THEIR USES 审中-公开
标题翻译：从乙酸乙烯酯获得聚合物及其用途的程序
公开(公告)号：US20090306226A1
公开(公告)日：2009-12-10
申请号：US12416395
申请日：2009-04-01
申请人： Alberto Guillermo Suzarte Paz , Mayda Luisa Echeverria Perez , Gerardo Iglesias Rodriguez , Elsa Eneida Diaz Aguila , Guillermo Jordan Martinez
发明人： Alberto Guillermo Suzarte Paz , Mayda Luisa Echeverria Perez , Gerardo Iglesias Rodriguez , Elsa Eneida Diaz Aguila , Guillermo Jordan Martinez
IPC分类号： A61K47/32 , C08F118/08
CPC分类号： C08F118/08 , A61K9/2027 , C08F8/12
摘要： Procedure for the obtaining of polyvinylacetate with average molecular mass between 10000 and 40000 daltons, remnant monomer content less than 2 ppm by weight, water content less than 1.5% by weight, innocuous after oral ingestion, obtained by polymerization of vinyl acetate in solution, preferably in ethanol, or in suspension, with use of dibenzoyl peroxide as initiator and that is characterized by: the purification of the polymer by means of the addition of an adequate volume of hot water to a solution of the polymer (in ethanol or other volatile solvent), or by means of the addition of a solution of the polymer to an adequate volume of hot water (>80° C.), during a time that depends on the employed equipment, on the slow mechanical stirring, and on the maintenance of a high temperature (>80° C.) of the resultant mass, with optionally bubbling of purified air through the said mass, until the achievement of the separation of the solvent by means of evaporation or dragging with help of the water vapor, the decomposition of the remnant initiator, the dissolution of the major part of the benzoic acid in water and the removal of the major part of the remnant monomer, finally the water phase is separated from the semisolid humid polymer mass. the drying of the semisolid humid polymer mass by means of heating of the said mass at a temperature between 80 and 140° C., under vacuum (0.02-13 kPa), and stirring the mass slowly until the polymer contains a humidity less than 1.5% by weight and remnant monomer less than 2 ppm.
摘要翻译：获得平均分子量在10000-40000道尔顿之间的聚乙酸乙烯酯，剩余单体含量小于2重量ppm，水含量小于1.5重量％的口服摄取后的无水乙酸乙烯酯在溶液中聚合获得的方法在乙醇中或悬浮液中，使用过氧化二苯甲酰作为引发剂，其特征在于：通过向聚合物溶液（在乙醇或其它挥发性溶剂中）加入足够体积的热水来纯化聚合物），或者通过在取决于所用设备的时间内，在缓慢的机械搅拌下，以及在维持时，将聚合物溶液加入足够体积的热水（> 80℃）所得物质的高温（> 80℃），任选地将纯化空气鼓泡通过所述物质，直到通过蒸发或拖曳用帮助实现溶剂分离的水蒸气，残留引发剂的分解，大部分苯甲酸溶解在水中，并除去大部分剩余单体，最后将水相与半固体潮湿聚合物物质分离。通过在真空（0.02-13kPa）下在80-140℃的温度下加热所述物料，干燥半固体潮湿聚合物物质，并缓慢搅拌物料，直到聚合物含有小于1.5的湿度重量％，剩余单体小于2ppm。

5. 发明授权

US07629419B2 Process for producing modified polymer, apparatus for producing modified polymer, and modified polymer 有权
标题翻译：改性聚合物的制造方法，改性聚合物的制造装置和改性聚合物
公开(公告)号：US07629419B2
公开(公告)日：2009-12-08
申请号：US10492701
申请日：2002-10-16
申请人： Katsunori Toyoshima , Toshio Tada , Yohei Nishimura
发明人： Katsunori Toyoshima , Toshio Tada , Yohei Nishimura
IPC分类号： C08F116/06 , C08F118/08 , C08G2/26 , C08G67/00
CPC分类号： C08F8/28 , C08J5/18 , Y02P20/544 , C08F8/12 , C08F118/08 , C08F8/48 , C08F216/06 , C08F218/08
摘要： It is an object of the invention to provide a method for producing a modified polymer compound and a production apparatus of a modified polymer capable of producing a modified polymer compound with a high purity in a short time, and such a modified polymer compound.The invention provides a method for producing a modified polymer compound, which comprises chemically modifying a polymer compound in a supercritical fluid or a high temperature and high pressure fluid, said modified polymer compound being composed of monomer units obtainable by chemically modifying part of or all of monomer units composed of the polymer compound before modification reaction.
摘要翻译：本发明的目的是提供一种改性高分子化合物的制造方法和能够在短时间内制备高纯度的改性高分子化合物的改性聚合物的制造装置，以及这种改性高分子化合物。本发明提供了一种制备改性聚合物化合物的方法，其包括在超临界流体或高温高压流体中化学改性高分子化合物，所述改性聚合物化合物由可通过化学改性部分或全部改性反应前由高分子化合物组成的单体单元。

6. 发明授权

US5268429A Polymer process 失效
标题翻译：聚合物工艺
公开(公告)号：US5268429A
公开(公告)日：1993-12-07
申请号：US889346
申请日：1992-05-28
申请人： Margaretha J. C. M. Koppes , Johannes A. Van Doorn , Judith J. B. Walhof
发明人： Margaretha J. C. M. Koppes , Johannes A. Van Doorn , Judith J. B. Walhof
IPC分类号： C08F2/00 , C07F9/48 , C08C19/44 , C08F2/38 , C08F8/40 , C08F8/48 , C08F36/06 , C08F118/08 , C08K5/5393 , C08F8/30 , C08F261/06 , C08K5/53
CPC分类号： C08C19/44 , C07F9/4841 , C08F8/40
摘要： An improved process for the production of linear block copolymers of vinylaromatic hydrocarbon and conjugated alkadiene comprises the coupling of living polymer chains containing at least one block of polymerized vinylaromatic hydrocarbon and at least one block of polymerized conjugated alkadiene wherein the coupling agent is an aromatic phosphonite.

7. 发明授权

US4226966A Method for producing vinyl chloride resins 失效
标题翻译：生产氯乙烯树脂的方法
公开(公告)号：US4226966A
公开(公告)日：1980-10-07
申请号：US880557
申请日：1978-02-23
申请人： Makoto Shiraishi , Hiroshi Uchida , Yoshinori Koizumi , Akira Saito
发明人： Makoto Shiraishi , Hiroshi Uchida , Yoshinori Koizumi , Akira Saito
IPC分类号： C08F14/00 , C08F2/00 , C08F2/02 , C08F2/18 , C08F2/20 , C08F14/06 , C08F114/06 , C08F118/08
CPC分类号： C08F14/06
摘要： A method for suspension polymerizing vinyl chloride monomer, or a mixture thereof with copolymerizable monomers, employs as a suspension stabilizer a partially saponified polyvinyl alcohol having a degree of saponification between about 60 and about 90 mol percent, and a solubility-in-methanol index at 55.degree. C. in a range of up to about 60 percent.
摘要翻译：将氯乙烯单体或其可共聚单体的混合物悬浮聚合的方法使用皂化度在约60-约90mol％之间的部分皂化的聚乙烯醇和在甲醇中的溶解度指数 55℃，最高达约60％。

8. 发明授权

US3193542A Production of polyvinyl alcohol having improved characteristics 失效
标题翻译：具有改进特性的聚乙烯醇的生产
公开(公告)号：US3193542A
公开(公告)日：1965-07-06
申请号：US11143661
申请日：1961-05-22
申请人： KURASHIKI RAYON CO
发明人： KIYOKAZU IMAI
IPC分类号： C08F8/12 , C08F118/08
CPC分类号： C08F118/08 , C08F8/12 , C08J5/18

9. 发明授权

US3111508A Preparation of polyvinyl esters and polyvinyl alcohol 失效
标题翻译：聚乙烯酯和聚乙烯醇的制备
公开(公告)号：US3111508A
公开(公告)日：1963-11-19
申请号：US84484659
申请日：1959-10-07
申请人： KURASHIKI RAYON CO
发明人： KIYOKAZU IMAI , UNPEI MAEDA
IPC分类号： C08F8/12 , C08F118/08 , G03C1/015
CPC分类号： G03C1/015 , C08F8/12 , C08F118/08

10. 发明授权

US3109837A Homopolymerization of vinyl acetate 失效
标题翻译：乙酸乙烯酯的均聚
公开(公告)号：US3109837A
公开(公告)日：1963-11-05
申请号：US3375160
申请日：1960-06-03
申请人： KURASHIKI RAYON CO , AIR REDUCTION
发明人： ROBERT LOCKHEED , SABURO YAMANE , KYOEI HARADA , YUKIO NISHIMATSU
IPC分类号： C08F2/00 , C08F2/02 , C08F2/06 , C08F118/08
CPC分类号： C08F2/06 , C08F2/02 , C08F118/08

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