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    Method for reducing water uptake in silyl terminated sulfopoly(ester-urethanes)
    2.
    发明授权
    Method for reducing water uptake in silyl terminated sulfopoly(ester-urethanes) 失效
    减少甲硅烷基封端的磺基聚合物（酯 - 氨基甲酸酯）吸水率的方法

    公开(公告)号：US5929160A

    公开(公告)日：1999-07-27

    申请号：US937487

    申请日：1997-09-25

    申请人： Larry R. Krepski ,  Steven M. Heilmann ,  Daniel E. Mickus ,  Wayne K. Larson

    发明人： Larry R. Krepski ,  Steven M. Heilmann ,  Daniel E. Mickus ,  Wayne K. Larson

    IPC分类号： C08L75/06 ,  C08G18/08 ,  C08G18/10 ,  C08G18/46 ,  C08G18/71 ,  C08G18/83 ,  C08J3/00 ,  C08K3/20 ,  C08L75/00 ,  C08L83/00

    CPC分类号： C08G18/4676 ,  C08G18/0828 ,  C08G18/10

    摘要： A method of decreasing the water uptake in a sulfopoly(ester-urethane) by preparing said sulfopoly(ester-urethane) from a chain extended sulfopolyester polyol which itself has been prepared in a two-step method, said sulfopoly(ester-urethane) comprising in its backbone at least one non-terminal arylene or alkylene group comprising a pendant sulfonic acid group or salt thereof, said sulfonic acid group or salt thereof having the formula ##STR1## wherein R is a trivalent aliphatic or aromatic group and M is a cation, said sulfonic acid group or salt thereof being bonded directly through said aliphatic or aromatic group to ester groups, the polymer of said sulfo(polyester-urethane) being terminated by at least one hydrolyzable silyl group,said two-step method for preparing said chain extended sulfopolyester polyol comprising the steps of:a) reacting a sulfopolycarboxylic acid or ester with a polyol to produce a sulfopolyester polyol,b) chain extending said sulfopolyester polyol by an esterification reaction with a lower aliphatic lactone to produce a chain extended sulfopolyester polyol, andsaid chain extended sulfopolyester polyol then, (1) in one embodiment, being reacted with a stoichiometric excess of a polyisocyanate and at least one of a polyol, polyamine, and polythiol to produce an isocyanate-terminated sulfo(polyester-urethane), which is then reacted with a nucleophilic, hydrolyzable silane or (2) in a second embodiment, being reacted with a polyisocyanate and a stoichiometric excess of at least one of a polyol, polyamine, and polythiol to produce a hydroxyl-, amino-, or mercapto-terminated sulfo(polyester-urethane) which is then reacted with an electrophilic hydrolyzable silane to produce said sulfopoly(ester-urethane), which when dried has decreased water uptake.

    摘要翻译： 所述磺基聚（酯 - 氨基甲酸酯）包括通过由两步法制备的扩链磺基聚酯多元醇制备所述锍聚（酯 - 氨基甲酸酯）来降低锍聚（酯 - 氨基甲酸酯）中的吸水率的方法， 在其主链中至少有一个非末端亚芳基或含有磺酸侧基的亚烷基或其盐，所述磺酸基或其盐具有下式：其中R是三价脂族或芳族基，M是阳离子，所述磺酸 所述磺基（聚酯 - 氨基甲酸酯）的聚合物被至少一个可水解的甲硅烷基封端，所述制备所述链延长磺基聚酯多元醇的两步法 包括以下步骤：a）使磺基多羧酸或酯与多元醇反应以产生磺基聚酯多元醇，b）通过酯化链延伸所述磺基聚酯多元醇 与低级脂肪族内酯反应以产生扩链磺基聚酯多元醇，并且所述链延长磺基聚酯多元醇然后，（1）在一个实施方案中，与化学计量过量的多异氰酸酯和多元醇，多胺和 多异硫氰酸酯以产生异氰酸酯封端的磺基（聚酯 - 氨基甲酸酯），然后与亲核的可水解的硅烷反应，或（2）在第二个实施方案中与多异氰酸酯和化学计量过量的多元醇， 多胺和多硫醇，以产生羟基，氨基或巯基封端的磺基（聚酯 - 氨基甲酸酯），然后与亲电的可水解硅烷反应产生所述磺化聚（酯 - 氨基甲酸酯），当干燥时，其吸水量降低。

    Chromogenic leuco redox-dye-releasing compounds for photothermographic elements
    4.
    发明授权
    Chromogenic leuco redox-dye-releasing compounds for photothermographic elements 失效
    用于光热敏成像元件的显色无色氧化还原 - 染料释放化合物

    公开(公告)号：US5492804A

    公开(公告)日：1996-02-20

    申请号：US269400

    申请日：1994-06-30

    申请人： Raffaella Biavasco ,  Lori S. Harring ,  Larry R. Krepski ,  Daniel E. Mickus ,  Mark B. Mizen ,  Sharon M. Simpson ,  Cristina Soncini ,  Kim M. Vogel

    发明人： Raffaella Biavasco ,  Lori S. Harring ,  Larry R. Krepski ,  Daniel E. Mickus ,  Mark B. Mizen ,  Sharon M. Simpson ,  Cristina Soncini ,  Kim M. Vogel

    IPC分类号： G03C8/40 ,  C07C275/40 ,  C07C275/42 ,  C07C311/46 ,  G03C1/498

    CPC分类号： C07C275/40 ,  C07C275/42 ,  C07C311/46 ,  G03C1/49854 ,  Y10S430/156

    摘要： A photothermographic element comprising a support bearing at least one heat-developable, photosensitive, image-forming photothermographic emulsion layer comprising:(a) a photosensitive silver halide;(b) a non-photosensitive, reducible source of silver;(c) a chromogenic leuco dye reducing agent; and(d) a binder;wherein the chromogenic leuco dye reducing agent is a chromogenic leuco redox-dye-releasing compound of the general formula: ##STR1## wherein: (i) Cp is a coupler group;(ii) N--D is a photographic developer group; and(iii) R.sup.1 is a --C(O)--NH--A--Dye group wherein Dye represents the chromophore of a thermally mobile dye; and A represents a single bond or a divalent linking group of the formula --X--R.sup.5 --L--, wherein R.sup.5 is a divalent hydrocarbon chain containing up to 12 carbon atoms, L is a single bond or a divalent group that binds the chromophore of the thermally mobile dye to R.sup.5, and X represents a single bond or an --SO.sub.2 -- group.

    摘要翻译： 一种光热敏成像元件，包括承载至少一个可热显影的，感光的成像光热敏成像乳剂层的支撑体，其包含：（a）感光卤化银; （b）非光敏，可还原的银源; （c）显色无色染料还原剂; 和（d）粘合剂; 其中所述显色无色染料还原剂是通式为：其中：（i）Cp为偶合剂基团的显色无色隐绿色氧化还原 - 染料释放化合物。 （ii）N-D是照相显影剂组; 和（iii）R 1是-C（O）-NH-A-染料基团，其中染料代表热移动染料的发色团; 并且A表示单键或式-X-R5-L-的二价连接基团，其中R 5是含有至多12个碳原子的二价烃链，L是单键或二价基团，其结合 热移动染料至R5，X表示单键或-SO 2 - 基团。

    Abrasive article with tie coat and method
    6.
    发明授权
    Abrasive article with tie coat and method 失效
    磨砂制品与领带和方法

    公开(公告)号：US6139594A

    公开(公告)日：2000-10-31

    申请号：US59118

    申请日：1998-04-13

    申请人： Don H. Kincaid ,  Scott R. Culler ,  Larry R. Krepski ,  Daniel E. Mickus

    发明人： Don H. Kincaid ,  Scott R. Culler ,  Larry R. Krepski ,  Daniel E. Mickus

    IPC分类号： B24D3/00 ,  B24D3/28 ,  B24D11/00 ,  C08G18/08 ,  C08G18/10 ,  C08G18/28 ,  C08G18/66 ,  C09K3/14 ,  B24D3/02 ,  B24D11/04

    CPC分类号： C08G18/664 ,  B24D11/005 ,  B24D3/004 ,  B24D3/28 ,  C08G18/0828 ,  C08G18/10

    摘要： An abrasive article is provided that includes a tie coat which improves adhesion between an abrasive layer and a backing in the abrasive article. The tie coat is preferably formed from a tie coat precursor comprising a sulfopoly(ester-urethane) component comprising in its backbone at least one non-terminal arylene or alkylene group comprising a pendant sulfonic acid group or salt thereof having the formula: ##STR1## wherein R is a trivalent aliphatic or aromatic group and M is a cation, said aliphatic or aromatic group being bonded directly to ester groups and wherein the polymer is terminated by at least one hydrolyzable silyl group. Preferably, the abrasive article is a structured abrasive article. Also provided is a method for making an abrasive article.

    摘要翻译： 提供了一种磨料制品，其包括粘结涂层，其提高磨料制品中研磨层和背衬之间的粘合性。 连接涂层优选由包含磺基聚（酯 - 氨基甲酸酯）组分的连接涂层前体形成，所述组合物在其主链中包含至少一个非末端亚芳基或包含具有下式的侧链磺酸基团的亚烷基或其盐：其中R为 三价脂族或芳族基团，M是阳离子，所述脂族或芳族基团直接键合到酯基上，并且其中聚合物被至少一个可水解甲硅烷基封端。 优选地，磨料制品是结构化磨料制品。 还提供了制造磨料制品的方法。