Method of grafting
    41.
    发明授权
    Method of grafting 失效
    接枝方法

    公开(公告)号:US5981642A

    公开(公告)日:1999-11-09

    申请号:US849907

    申请日:1997-08-05

    CPC分类号: C08F290/141 C08F291/00

    摘要: Method of grafting a water-soluble organic oligomer(s) to an organic polymer(s) in aqueous latex form, which method comprises forming a water-based mixture of a water-soluble oligomer(s), an aqueous latex of a polymer(s), and at least one free radical polymerisable monomer, both of said oligomer(s) and polymer(s) being preformed, and carrying out free radical polymerisation of said at least one monomer to effect grafting between said oligomer(s) and said polymer(s).

    摘要翻译: PCT No.PCT / EP95 / 05021 Sec。 371日期:1997年8月5日 102(e)日期1997年8月5日PCT 1995年12月19日PCT PCT。 出版物WO96 / 日期1996年6月27日将水溶性有机低聚物以水性胶乳形式接枝到有机聚合物的方法,该方法包括形成水溶性低聚物的水基混合物, 聚合物的胶乳和至少一种可自由基聚合的单体,所述低聚物和聚合物都被预先形成,并且进行所述至少一种单体的自由基聚合以实现所述低聚物之间的接枝 (s)和所述聚合物。

    PROCESS FOR MAKING A CATIONIC VINYL OLIGOMER COMPOSITION
    44.
    发明申请
    PROCESS FOR MAKING A CATIONIC VINYL OLIGOMER COMPOSITION 有权
    制备阳离子乙烯低聚物组合物的方法

    公开(公告)号:US20110027602A1

    公开(公告)日:2011-02-03

    申请号:US12668233

    申请日:2008-06-24

    IPC分类号: B01J39/20 B32B27/36

    摘要: A process is described for making an aqueous coating composition comprising a cationic vinyl oligomer comprising the following steps: I. preparation of a cationic vinyl oligomer by solution or bulk polymerisation of components: i) 2 to 50 wt % of vinyl monomers bearing amine functional groups selected from the group consisting of non-ionic amine functional groups (a), permanent quaternary ammonium functional groups (b), neutralised amine functional groups (c) and mixtures thereof; and ii) 20 to 98 wt % of Ci to Ci8 alkyl (meth)acrylates; and II. dispersion of the cationic vinyl oligomer in an aqueous medium and neutralisation of non-ionic amine functional groups.

    摘要翻译: 描述了一种制备包含阳离子乙烯基低聚物的水性涂料组合物的方法,其包括以下步骤:I.通过组分的溶液或本体聚合制备阳离子乙烯基低聚物:i)2至50重量%的带有胺官能团的乙烯基单体 选自非离子胺官能团(a),永久性季铵官能团(b),中和胺官能团(c)及其混合物; 和ii)20至98重量%的C 1-8烷基(甲基)丙烯酸酯; 和II。 阳离子乙烯基低聚物在水性介质中的分散和非离子胺官能团的中和。

    Aqueous polymer dispersions
    48.
    发明授权
    Aqueous polymer dispersions 有权
    聚合物水分散体

    公开(公告)号:US06362273B1

    公开(公告)日:2002-03-26

    申请号:US09509376

    申请日:2000-03-27

    IPC分类号: C08J300

    摘要: Aqueous polymer dispersion containing a water-dispersed polyurethane polymer and a vinyl (preferably acrylic) polymer in a weight ratio of from 30/70 to 5/95, wherein said polyurethane polymer is the reaction product of: A) an isocyanate-terminated polyurethane prepolymer having an acid value of ≧44 mg KOH/g of prepolymer (solids) and formed from reactants comprising an organic polyisocyanate component and an organic poly(isocyanate-reactive) group) component in which the isocyanate-reactive groups are selected from —OH and optionally one or more of —NH2, —NH—, and —SH (usually a polyol), wherein i) at least 70 weight % of said polyisocyanate component is constituted by at least one aliphatic polyisocyanate, ii) said poly(isocyanate-reactive group) component includes at least one acid-bearing poly(isocyanate-reactive group) compound for providing anionic groups which provide or contribute to water-dispersibility, iii) the reactants are used in amounts corresponding to a ratio of isocyanate groups to isocyanate-reactive groups (usually hydroxyl) within the range of 1.4/1 to 2.9/1; and B) an active hydrogen chain-extending compound(s).

    摘要翻译: 含有水分散聚氨酯聚合物和重量比为30/70至5/95的乙烯基(优选丙烯酸))聚合物的水性聚合物分散体,其中所述聚氨酯聚合物是以下物质的反应产物:A)异氰酸酯封端的聚氨酯预聚物 具有> = 44mg KOH / g预聚物(固体)并由包含有机多异氰酸酯组分和有机聚异氰酸酯反应性基团的反应物形成的酸值)组分,其中异氰酸酯反应性基团选自-OH 和任选的一个或多个-NH 2,-NH-和-SH(通常为多元醇),其中i)至少70重量%的所述多异氰酸酯组分由至少一种脂族多异氰酸酯构成,ii)所述聚(异氰酸酯反应性 基团)组分包括提供或有助于水分散性的阴离子基团的至少一种含酸聚(异氰酸酯反应性基团)化合物,iii)反应物以与异氰酸酯的比例相对应的量使用 e至异氰酸酯反应性基团(通常为羟基)在1.4 / 1至2.9 / 1的范围内; 和B)活性氢链延长化合物。

    WATERBASED FORMALDEHYDE FREE ADHESIVES
    49.
    发明申请
    WATERBASED FORMALDEHYDE FREE ADHESIVES 审中-公开
    含水甲醛免费粘合剂

    公开(公告)号:US20110200830A1

    公开(公告)日:2011-08-18

    申请号:US13054071

    申请日:2009-07-14

    摘要: There is described a formaldehyde-free laminating adhesive, optionally the with less than 3% by weight of co-solvent(s), the adhesive comprising: (I) a polyurethane that comprises from 30% to 65% by weight of hard segments, the polyurethane being obtained and/or obtainable from a first polyurethane dispersion (PUD) comprising the reaction product of (A) an organic isocyanate and (B) at least one chain extender reacting in a respective stoichiometric ratio (NCO to NCO reactive group) from 1:1 to 1:2.5 and; optionally the NCO reactive group(s) of the chain extender comprises one or more hydrazinyl-like group(s) (denoting isocyanate reactive groups selected from the group comprising, preferably consisting of: —NRNR2 (hydrazinyl groups); —CONRNR2 (hydrazidyl groups), —NRCONRNR2 (semicarbazidyl groups); and —ONR2 (oxyamine groups), where each R is independently selected from H or C1-10hydrocarbo); and (II) optionally a second polymer obtained and/or obtainable from a polymer precursor comprising at least one unsaturated moiety, preferably an ethylenically unsaturated group, and where optionally the second polymer may be iminated; with the provisos that: (α) when the first polyurethane does not comprise hydrazinyl-like group(s) then the second polymer is iminated; and (β) when the second polymer is un-iminated or is absent then the first polyurethane comprises hydrazinyl-like group(s). These adhesives may be used to adhere surface veneers to wood and/or to laminate the layers within plywood.

    摘要翻译: 描述了不含甲醛的层合粘合剂,任选地具有小于3重量%的助溶剂,粘合剂包含:(I)包含30重量%至65重量%硬链段的聚氨酯, 所述聚氨酯由包含(A)有机异氰酸酯和(B)至少一种以相应的化学计量比(NCO至NCO反应性基团)反应的至少一种扩链剂的反应产物的第一聚氨酯分散体(PUD)获得和/或获得, 1:1至1:2.5和; 任选地,扩链剂的NCO反应性基团包含一个或多个肼基 - 类基团(表示选自以下的异氰酸酯反应性基团:优选由以下基团组成:-NRNR2(腙基); -CONRNR2(肼基 ),-NRCONRNR2(氨基脲基);和-ONR2(羟胺基),其中每个R独立地选自H或C1-10氢化碳基); 和(II)任选的第二聚合物,其由包含至少一个不饱和部分,优选烯键式不饱和基团的聚合物前体获得和/或可获得,并且其中任选地第二聚合物可以被亚胺化; 条件是:(α)当第一聚氨酯不包含肼基 - 类基团时,则第二聚合物被仿制; 和(&bgr)时,当第二聚合物不被化学或不存在时,第一种聚氨酯包括类似肼基的基团。 这些粘合剂可以用于将表面胶合板粘附到木材上和/或将胶层层压在胶合板中。