公开(公告)号：US4960849A

公开(公告)日：1990-10-02

申请号：US172574

申请日：1988-03-24

申请人： Kazuaki Okabe ,  Hideyuki Ishii ,  Haruo Watanabe ,  Shuichi Takeuchi

发明人： Kazuaki Okabe ,  Hideyuki Ishii ,  Haruo Watanabe ,  Shuichi Takeuchi

IPC分类号： C08G18/48

CPC分类号： C08G18/4858

摘要： A polyurethane resin composition without handling trouble is obtained by a combination of a copolyether polyol obtained by copolymerization of tetrahydrofuran and a 3-alkyl tetrahydrofuran at a mixing molar ratio of 85/15-20/80, a polyisocyanate compound and an active hydrogen atom-containing compound. The 3-alkyl tetrahydrofuran is preferably 3-methyl tetrahydrofuran.

公开(公告)号：US5494990A

公开(公告)日：1996-02-27

申请号：US415342

申请日：1995-04-03

申请人： Hiroyuki Tagawa ,  Kazuaki Okabe

发明人： Hiroyuki Tagawa ,  Kazuaki Okabe

IPC分类号： C08G18/10 ,  C08G18/32 ,  C08G18/48 ,  C08G18/65 ,  C08G18/66 ,  C08G18/76 ,  C08G18/28

CPC分类号： C08G18/6674 ,  C08G18/10 ,  C08G18/3218 ,  C08G18/4858

摘要： Disclosed is a polyurethane resin having a broad rubbery-state region which has a number-average molecular weight of from 30,000 to 500,000 and comprises repeating units (A) represented by formula (I):--CONH-X-NHCOO-Y-O- (I)wherein X represents the divalent residue formed by removing the isocyanate groups from a specific aromatic diisocyanate and Y represents the divalent residue formed by removing the hydroxyl groups from a poly(alkylene ether) diol whose main chain is made up of the group represented by --CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.2 O-- and a group represented by --CHR.sub.1 CHR.sub.2 CHR.sub.3 CHR.sub.4 O-- where one of R.sub.1, R.sub.2, R.sub.3, and R.sub.4 is a lower alkyl group and the remaining three each is a hydrogen atom, and which has a number-average molecular weight of from 500 to 10,000, and repeating units (B) represented by formula (II):--CONH-X-NHCOO-Z-O-- (II)wherein Z represents the divalent residue formed by removing the hydroxyl groups from 3,9-bis(1,1-dimethyl-2-hydroxyethyl)-2,4,8,10-tetraoxaspiro[5,5]undecane), the repeating units (A) and (B) being bonded together in a random sequence, with the proportion of (A)/(B) being from 0.1 to 2.0.

摘要翻译： 公开了具有数均分子量为30,000〜500,000的宽橡胶状态区域的聚氨酯树脂，并且包含由式（I）表示的重复单元（A）：-CONH-X-NHCOO-YO-（I ）其中X表示通过从特定芳族二异氰酸酯除去异氰酸酯基而形成的二价残基，Y表示通过从主链由以下组成的基团构成的聚（亚烷基醚）二醇除去羟基而形成的二价残基： CH2CH2CH2CH2O-和由-CHR1CHR2CHR3CHR4O-表示的基团，其中R1，R2，R3和R4中的一个为低级烷基，其余三个为氢原子，数均分子量为500至10,000 ，和由式（II）表示的重复单元（B）：-CONH-X-NHCOO-ZO-（II）其中Z表示通过从3,9-双（1,1-二甲基 -2-羟乙基）-2,4,8,10-四氧杂螺[5,5]十一烷），重复 单位（A）和（B）以随机顺序键合在一起，（A）/（B）的比例为0.1至2.0。

公开(公告)号：US4992524A

公开(公告)日：1991-02-12

申请号：US471661

申请日：1990-01-23

申请人： Clive J. Coady ,  Donald W. Fieder ,  Kazuaki Okabe ,  Katsutoshi Igarashi ,  Yoshio Matsumura

发明人： Clive J. Coady ,  Donald W. Fieder ,  Kazuaki Okabe ,  Katsutoshi Igarashi ,  Yoshio Matsumura

IPC分类号： C08G18/65 ,  C03C25/10 ,  C08F290/06 ,  C08G18/48 ,  C08G18/67 ,  C09D175/04 ,  C09D175/08 ,  G02B6/44

CPC分类号： C08G18/4858 ,  C03C25/106 ,  C08G18/672

摘要： A radiation-curable coating composition adapted for the coating of optical glass fiber, comprising an ethylenically unsaturated polyurethane which is the reaction product of:(A) a polyether diol having a molecular weight in the range of 200 to 8,000 and a structural unit represented by the formula: ##STR1## in which R.sup.1 -R.sup.4 are each independently selected from hydrogen and an alkyl group containing from 1-4 carbon atoms, such as a polymer of copolymer of methyl tetrahydrofuran;(B) a polyisocyanate compound, preferably a diisocyanate; and(C) a polymerizable ethylenically unsaturated compound having a single hydroxy group, such as a monohydric acrylate;there being employed per equivalent of hydroxy in component (C) from 1.1 to 2 equivalents of said polyisocyanate with the balance of the isocyanate groups being reacted waith the hydroxy groups of said diol.

摘要翻译： 一种适用于涂覆光学玻璃纤维的可辐射固化涂料组合物，其包含烯属不饱和聚氨酯，其为以下物质的反应产物：（A）分子量为200-8000的聚醚二醇和由 式中，R 1 -R 4各自独立地选自氢和含有1-4个碳原子的烷基，例如甲基四氢呋喃的共聚物的聚合物; （B）多异氰酸酯化合物，优选二异氰酸酯; 和（C）具有单个羟基的可聚合烯键式不饱和化合物，如一元丙烯酸酯; 在组分（C）中每当量使用1.1至2当量的所述多异氰酸酯，其中异氰酸酯基团的余量与所述二醇的羟基反应。

公开(公告)号：US08053607B2

公开(公告)日：2011-11-08

申请号：US10739122

申请日：2003-12-19

申请人： Kazuaki Okabe ,  Hiroshi Nakaoka ,  Ikuhiko Kanehira

发明人： Kazuaki Okabe ,  Hiroshi Nakaoka ,  Ikuhiko Kanehira

IPC分类号： C07C41/38 ,  C07C41/34 ,  C07C41/01 ,  C07C43/00 ,  C07C43/10

CPC分类号： C08G65/30 ,  C08G65/20

摘要： A method for producing a polyether-polyol having a narrow molecular weight distribution, which comprises carrying out selective fractional extraction of the low-molecular weight component from a polyether-polyol (A) having an average molecular weight of from 500 to 4500 represented by formula (1): HO—[(CH2)4O]n—[(CR1R2)pO]q—H  (1) wherein R1 and R2, which may be the same or different, each represents a hydrogen atom or a linear or branched alkyl group having from 1 to 5 carbon atoms; n indicates a positive integer; p indicates an integer of from 1 to 8; and q indicates 0 or a positive integer, by the use of an aqueous solution (C) containing from 15 to 70 wt % sulfuric acid at a room temperature to 100° C., to thereby suitably determine the amount of the aqueous sulfuric acid solution to the overall organic layer and the sulfuric acid concentration in accordance with the molecular weight and molecular weight distribution of the intended polyether-polyol to be fractionally extracted.

摘要翻译： 一种具有窄分子量分布的聚醚多元醇的制造方法，其特征在于，进行由式（A）表示的平均分子量为500〜4500的聚醚多元醇（A）的低分子量成分的选择性分级萃取 （1）：HO - [（CH 2）4 O] n - [（CR 1 R 2）p O] q -H（1）其中R 1和R 2可以相同或不同，表示氢原子或直链或支链烷基 具有1至5个碳原子的基团; n表示正整数; p表示1〜8的整数， q为0或正整数时，通过使用含有15〜70重量％硫酸的水溶液（C），在室温〜100℃下，适当地测定硫酸水溶液的量 根据分数提取的目标聚醚 - 多元醇的分子量和分子量分布，计算总有机层和硫酸浓度。

公开(公告)号：US20050130251A1

公开(公告)日：2005-06-16

申请号：US10485698

申请日：2002-08-02

申请人： Kazuaki Okabe ,  Akira Kadota ,  Kozo Aoki ,  Kazunobu Takahashi ,  Masami Sakurada ,  Kouki Nakamura

发明人： Kazuaki Okabe ,  Akira Kadota ,  Kozo Aoki ,  Kazunobu Takahashi ,  Masami Sakurada ,  Kouki Nakamura

IPC分类号： G01N31/22 ,  C12Q1/28

CPC分类号： G01N31/228 ,  G01N2333/908

摘要： A reagent for determination of hydrogen peroxide which comprises (A) a compound represented by the following general formula (I): R1—NH—R2   (I) (wherein R1 represents a carbamoyl group or the like, and R2 represents an arylamino group, a heteroarylamino group, or a substituent represented by the following general formula (II): [wherein R3 to R6 represent X—Y—Ra {Ra represents a hydrogen atom, an alkyl group or the like, X represents a single bond, O or the like, and Y represents a single bond, (C═O) or the like}, a cyano group, a halogen atom or the like]>; (B) a compound represented by the general formula (III): [wherein R9 represents a group which can be eliminated by oxidative coupling color-developing reaction with the compound represented by the formula (I), and R7, R8, and R10 to R13 have the same meaning as that of R3], or the like; and (C) a peroxidative substance.

摘要翻译： 一种用于测定过氧化氢的试剂，其包含（A）由以下通式（I）表示的化合物：<？in-line-formula description =“In-line formula”end =“lead”？> 1-N-R 2（I）<？在线公式描述=“在线公式”end =“tail”？>（其中R 1， / SUP>表示氨基甲酰基等，R 2表示芳基氨基，杂芳基氨基或由以下通式（II）表示的取代基：[其中R 3 至R 6表示XYR a R i表示氢原子，烷基等，X表示单 键，O等，Y表示单键，（CO）等}，氰基，卤素原子等〕;（B）由通式（III）表示的化合物：[ 其中R 9表示可以通过与式（I）表示的化合物的氧化偶联显色反应来除去的基团， R 7，R 8和R 10至R 13具有与R 10相同的含义， SUP> 3]等; 和（C）过氧化物质。