Removable, water-whitening resistant pressure sensitive adhesives
    1.
    发明申请
    Removable, water-whitening resistant pressure sensitive adhesives 审中-公开
    可拆卸,防水增白的压敏粘合剂

    公开(公告)号:US20060247367A1

    公开(公告)日:2006-11-02

    申请号:US11477258

    申请日:2006-06-29

    IPC分类号: C09D5/02

    CPC分类号: C08F8/30

    摘要: Removable pressure sensitive adhesive compositions having enhanced resistance to water-whitening comprising a crosslinked aqueous emulsion polymer are disclosed. The crosslinked aqueous emulsion polymer comprises (a) at least one hydrophobic monomer; (b) greater than 1 wt. % of at least one hydrophilic monomer; (c) greater than 3 wt. % of at least one mono-olefinically unsaturated monomer having an aldehyde or ketone group; (d) optionally at least one partially hydrophilic monomer; and (e) an effective amount of at least one water-soluble or water-dispersible polymerizable surfactant; wherein the crosslinked aqueous emulsion polymer is crosslinked with an effective amount of at least one polyhydrazide crosslinker, the wt. % of monomers (a), (b), (c) and (d) are based on the total weight of monomers (a), (b), (c) and (d), and the mean particle size of the crosslinked aqueous emulsion polymer is less than about 400

    摘要翻译: 公开了具有增强的抗水性抗变性的可移除的压敏粘合剂组合物,其包含交联的水性乳液聚合物。 交联的水乳液聚合物包含(a)至少一种疏水单体; (b)大于1重量% %的至少一种亲水性单体; (c)大于3wt。 %的至少一种具有醛或酮基的单烯属不饱和单体; (d)任选的至少一种部分亲水性单体; 和(e)有效量的至少一种水溶性或水分散性可聚合表面活性剂; 其中交联的水性乳液聚合物与有效量的至少一种聚酰肼交联剂交联, 单体(a),(b),(c)和(d)的单体单位为单体(a),(b),(c)和(d))的总重量, 水乳液聚合物小于约400

    Pressure Sensitive Adhesives
    2.
    发明申请
    Pressure Sensitive Adhesives 审中-公开
    压敏粘合剂

    公开(公告)号:US20090299004A1

    公开(公告)日:2009-12-03

    申请号:US12227143

    申请日:2007-06-01

    IPC分类号: C09J11/00

    CPC分类号: C09J133/02

    摘要: PSAs having high shear stability are disclosed. The PSAs are obtained from an aqueous dispersion comprising an effective amount of surfactant mixture comprising at least one ionic surfactant comprising a plurality, preferably at least three, aromatic rings, at least one electronegative substituent selected from a mono valent oxy substituted sulfo anion, and/or a mono valent oxy substituted phospho anion, and optionally at least one substituent comprising one or more repeating alkoxy units (e.g. Soprophor 4D 384 and/or DPOS-45), and at least one non-ionic surfactant (e.g. Abex 2535) and a monomer composition comprising: at least one hydrophobic monomer (Component I), at least one hydrophilic monomer (Component II) at least one partially hydrophilic monomer (Component III). The dispersion forms PSAs which are sufficiently stable under high shear to be curtain coatable.

    摘要翻译: 公开了具有高剪切稳定性的PSA。 PSA从包含有效量的表面活性剂混合物的水分散体获得,所述表面活性剂混合物包含至少一种离子表面活性剂,其包含多个,优选至少三个芳族环,至少一个选自单价氧取代的磺基阴离子的电负性取代基和/ 或单价氧取代的磷酸阴离子,以及任选至少一个包含一个或多个重复烷氧基单元的取代基(例如Soprophor 4D 384和/或DPOS-45)和至少一种非离子表面活性剂(例如Abex 2535)和 单体组合物,其包含:至少一种疏水性单体(组分I),至少一种亲水性单体(组分II)至少一种部分亲水性单体(组分III)。 分散体形成在高剪切下足够稳定的帘布可涂覆的PSA。

    Process for improving water-whitening resistance of pressure sensitive adhesives
    3.
    发明申请
    Process for improving water-whitening resistance of pressure sensitive adhesives 审中-公开
    提高压敏粘合剂耐水白度的工艺

    公开(公告)号:US20050245662A1

    公开(公告)日:2005-11-03

    申请号:US11175950

    申请日:2005-07-06

    摘要: Pressure sensitive adhesive compositions having enhanced resistance to water-whitening comprising an aqueous emulsion polymer are disclosed. The polymer comprises the polymerization reaction product of a polymerizable aqueous emulsion comprising: (i) a hydrophobic monomer mixture of at least one alkyl acrylate or alkyl methacrylate ester of an alcohol wherein the alkyl portion of the alcohol is linear or branched and contains at least 4 carbon atoms, and at least one styrenic monomer, wherein the styrenic monomer is up to about 30 wt. % of the total hydrophobic monomer mixture, (ii) at least about 1 wt. % of at least one hydrophilic monomer, (iii) at least about 5 wt. % of at least one partially hydrophilic monomer selected from alkyl acrylate or alkyl methacrylate esters of an alcohol wherein the alkyl portion of the alcohol has 1 to 2 carbon atoms, N-vinyl-2-pyrrolidone, or mixtures thererof, and (iv) a water-soluble or water-dispersible polymerizable surfactant selected from compounds having a terminal allyl amine moiety, polyoxyalkylene-1-(allyloxymethyl)alkyl ether sulfate salts, or mixtures thereof, and the average particle size of the polymer is less than or equal to 200 nm. Also disclosed are processes for preparing same.

    摘要翻译: 公开了具有增强的耐水性的含水乳液聚合物的压敏粘合剂组合物。 所述聚合物包括可聚合水乳液的聚合反应产物,其包含:(i)醇的至少一种丙烯酸烷基酯或甲基丙烯酸烷基酯酯的疏水性单体混合物,其中所述醇的烷基部分是直链或支链的并且含有至少4个 碳原子和至少一种苯乙烯类单体,其中苯乙烯类单体最多约30wt。 总疏水单体混合物的%,(ii)至少约1wt。 %的至少一种亲水性单体,(iii)至少约5wt。 %的至少一种选自丙烯酸烷基酯或醇的烷基甲基丙烯酸酯的部分亲水性单体,其中醇的烷基部分具有1至2个碳原子,N-乙烯基-2-吡咯烷酮或其混合物,和(iv) 选自具有末端烯丙基胺部分的化合物,聚氧化烯-1-(烯丙氧基甲基)烷基醚硫酸盐或其混合物的水溶性或水分散性可聚合表面活性剂,并且聚合物的平均粒度小于或等于200 nm。 还公开了制备方法。

    Polymer Composition and Process
    4.
    发明申请
    Polymer Composition and Process 审中-公开
    聚合物组成和工艺

    公开(公告)号:US20100093930A1

    公开(公告)日:2010-04-15

    申请号:US12522564

    申请日:2008-01-11

    IPC分类号: C08F2/22

    摘要: There is described a multi step mini-emulsion process for preparing a hybrid acrylic/polyurethane pressure sensitive adhesive (PSA) of very high shear strength, good peel strength and/or also high moisture vapor transmission rate, the process comprising the steps of: a) forming a first aqueous mixture comprising a hydrophilic stabilizer; b) forming separately a second oil mixture comprising: i) at least one vinyl functional polyurethane (optionally prepared from an isocyanate functional monomer; at least one monol and/or at least one α,β-ethylenically unsaturated monomer ii) optionally at least one hydrocarbon polymer (such as polystyrene); and iii) at least one α,β-ethylenically unsaturated monomer (such as (meth)acrylate or acids thereof; and/or iv) option-=ally at least one hydrophobic stabilizer; where components (ii), (iii) and/or (iv) may optionally be the same; c) mixing the aqueous and oil mixtures together to form a pre-(macro) emulsion; d) generating a stable mini-emulsion there-from optionally by applying high shear to form an aqueous continuous phase and stabilized oil droplets of average diameter from about 10 to about 1000 nm, and e) polymerizing the polymer precursor(s) within the droplets, optionally in the presence of a free radical initiator; to obtain a polymer latex.

    摘要翻译: 描述了一种用于制备具有非常高剪切强度,良好剥离强度和/或高水蒸汽透过速率的混合丙烯酸/聚氨酯压敏粘合剂(PSA)的多步微乳液方法,该方法包括以下步骤: )形成包含亲水稳定剂的第一含水混合物; b)单独形成第二油混合物,其包含:i)至少一种乙烯基官能聚氨酯(任选地由异氰酸酯官能单体制备;至少一种单醇和/或至少一种α,b-烯属不饱和单体ii)任选地至少 一种烃聚合物(如聚苯乙烯); 和iii)至少一种α,β-烯键式不饱和单体(例如(甲基)丙烯酸酯或其酸;和/或iv)选择性地 - 至少一种疏水稳定剂; 组分(ii),(iii)和/或(iv)可以任选地相同; c)将水和油混合物混合在一起以形成预(宏观)乳液; d)在其中产生稳定的微乳液,任选地通过施加高剪切以形成平均直径为约10至约1000nm的水性连续相和稳定的油滴,以及e)在液滴内聚合聚合物前体 任选地在存在自由基引发剂的情况下, 以获得聚合物胶乳。

    Process for improving water-whitening resistance of pressure sensitive adhesives
    5.
    发明申请
    Process for improving water-whitening resistance of pressure sensitive adhesives 审中-公开
    提高压敏粘合剂耐水白度的工艺

    公开(公告)号:US20080249239A9

    公开(公告)日:2008-10-09

    申请号:US11641176

    申请日:2006-12-19

    IPC分类号: C08F220/04

    摘要: Pressure sensitive adhesive compositions having enhanced resistance to water-whitening comprising an aqueous emulsion polymer are disclosed. The polymer comprises the polymerization reaction product of a polymerizable aqueous emulsion comprising: (i) at least one hydrophobic alkyl acrylate or alkyl methacrylate ester of an alcohol, (ii) at least about 1 wt. % of at least one hydrophilic monomer, (iii) at least about 5 wt. % of at least one partially hydrophilic alkyl acrylate or alkyl methacrylate ester of an alcohol, and (iv) a water-soluble or water-dispersible polymerizable surfactant selected from compounds having a terminal allyl amine moiety, substituted phenyl compounds having at least one alkenyl substituent, polyoxyalkylene-1-(allyloxymethyl) alkyl ether sulfate salts, or mixtures thereof, and the average particle size of the polymer is less than or equal to 200 nm. Also disclosed are processes for preparing same.

    摘要翻译: 公开了具有增强的耐水性的含水乳液聚合物的压敏粘合剂组合物。 该聚合物包括可聚合水乳液的聚合反应产物,其包含:(i)至少一种疏水性烷基丙烯酸酯或醇的甲基丙烯酸烷基酯酯,(ii)至少约1wt。 %的至少一种亲水性单体,(iii)至少约5wt。 %的至少一种部分亲水的丙烯酸烷基酯或甲基丙烯酸烷基酯酯,和(iv)选自具有末端烯丙基胺部分的化合物的水溶性或水分散性可聚合表面活性剂,具有至少一个链烯基取代基的取代苯基化合物 ,聚氧化烯-1-(烯丙氧基甲基)烷基醚硫酸盐或其混合物,聚合物的平均粒度小于或等于200nm。 还公开了制备方法。

    Pressure Sensitive Adhesives
    6.
    发明申请
    Pressure Sensitive Adhesives 审中-公开
    压敏粘合剂

    公开(公告)号:US20100016493A1

    公开(公告)日:2010-01-21

    申请号:US12227225

    申请日:2007-06-01

    IPC分类号: C09D133/02

    摘要: PSAs having enhanced resistance to water-whitening and high shear stability are disclosed. The PSAs are obtained from an aqueous dispersion comprising an effective amount of surfactant mixture comprising at least one ionic surfactant comprising a plurality, preferably at least three, aromatic rings, at least one electronegative substituent selected from a mono valent oxy substituted sulfo anion, and/or a mono valent oxy substituted phospho anion, and at least one substituent comprising one or more repeating alkoxy units (e.g. Soprophor 4D 384), and at least one non-ionic surfactant (e.g. Abex 2535) and a further non aromatic ionic surfactant (e.g. Aerosol OT 75); and a monomer composition comprising: at least one hydrophobic monomer (Component I), at least one hydrophilic monomer (Component II) at least one partially hydrophilic monomer (Component III) and optionally at least one a ureido monomer (e.g. Norsocryl 102) (Component IV). The dispersion has an average particle size of from about 100 nm to about 400 nm and a pH of from about 5.5 to about 9.0. The latex forms PSAs which have good water whitening resistance and is sufficiently stable under high shear to be curtain coatable.

    摘要翻译: 公开了具有增强的抗水白化和高剪切稳定性的PSA。 PSA从包含有效量的表面活性剂混合物的水分散体获得,所述表面活性剂混合物包含至少一种离子表面活性剂,其包含多个,优选至少三个芳族环,至少一个选自单价氧取代的磺基阴离子的电负性取代基和/ 或单价氧取代的磷酸阴离子,和至少一个包含一个或多个重复烷氧基单元的取代基(例如Soprophor 4D 384)和至少一种非离子表面活性剂(例如Abex 2535)和另外的非芳族离子表面活性剂(例如 Aerosol OT 75); 和至少一种疏水性单体(组分I),至少一种亲水性单体(组分II),至少一种部分亲水性单体(组分III)和任选至少一种脲基单体(例如Norsocryl 102)(组分 IV)。 分散体具有约100nm至约400nm的平均粒度和约5.5至约9.0的pH。 胶乳形成具有良好耐水白化能力的PSA,并且在高剪切下足够稳定以进行帘式涂布。

    Adhesive composition
    7.
    发明申请
    Adhesive composition 审中-公开
    粘合剂组合物

    公开(公告)号:US20080289759A1

    公开(公告)日:2008-11-27

    申请号:US12216364

    申请日:2008-07-02

    IPC分类号: C08J3/07 B32B7/12

    CPC分类号: C09J133/064 C08F220/12

    摘要: Process for preparing a pressure sensitive adhesive having enhanced resistance to water-whitening comprising the steps of: (a) forming a mixture in water of (i) a polymerization initiator which produces radicals by a thermal decomposition and (ii) a water-dispersible polymerizable surfactant with a terminal allyl amine moiety; polyoxyalkylene-1-(allyloxymethyl)alkyl ether sulfate salt(s) and/or mixtures thereof, (b) forming a polymerizable aqueous pre-emulsion comprising (i) a hydrophobic monomer mixture comprising at least one alkyl (meth)acrylate ester of a C1-4 alcohol and at least one styrenic monomer, (ii) one or more hydrophilic monomer(s), and (iii) of at least one partially hydrophilic monomer(s) selected from N-vinyl pyrrolidone; alkyl (meth)acrylate esters of methanol or ethanol; and/or mixtures thereof, the pre-emulsion further comprising surfactant, (c) contacting the pre-emulsion with the water mixture; and (d) continuously adding said pre-emulsion to said mixture to polymerize said pre-emulsion to form a latex emulsion.

    摘要翻译: 用于制备具有增强的抗水分增白性的压敏粘合剂的方法,包括以下步骤:(a)在水中形成混合物,(i)通过热分解产生自由基的聚合引发剂和(ii)水分散性可聚合 具有末端烯丙基胺部分的表面活性剂; 聚氧化烯-1-(烯丙氧基甲基)烷基醚硫酸盐和/或其混合物,(b)形成可聚合水性预乳液,其包含(i)包含至少一种(甲基)丙烯酸烷基酯 C 1-4醇和至少一种苯乙烯类单体,(ii)一种或多种亲水性单体和(iii)至少一种选自N-乙烯基吡咯烷酮的部分亲水性单体; 甲醇或乙醇的(甲基)丙烯酸烷基酯; 和/或其混合物,所述预乳液还包含表面活性剂,(c)使所述预乳液与所述水混合物接触; 和(d)将所述预乳液连续加入到所述混合物中以使所述预乳液聚合以形成胶乳乳液。

    Adhesive composition
    8.
    发明申请
    Adhesive composition 审中-公开
    粘合剂组合物

    公开(公告)号:US20070123637A1

    公开(公告)日:2007-05-31

    申请号:US10577707

    申请日:2004-11-05

    IPC分类号: C08L31/00

    CPC分类号: C09J133/064 C08F220/12

    摘要: There is described a process for preparing a pressure sensitive adhesive having enhanced resistance to water-whitening comprising the steps of: (a) forming a mixture in water of (i) an effective initial amount of a polymerization initiator which produces radicals by a thermal decomposition to form a mixture and optional further surfactant; (ii) an effective amount of a water-dispersible polymerizable surfactant with a terminal allyl amine moiety; polyoxyalkylene-1-(allyloxymethyl) alkyl ether sulfate salt(s) and/or mixtures thereof, (b) forming a polymerizable aqueous pre-emulsion comprising (i) a hydrophobic monomer mixture comprising at least one alkyl (metha)acrylate ester of an C1-4alcohol and up to about 30% by weight of the mixture of at least one styrenic monomer, (ii) at least about 1% of the total weight of (i) to (iii) of one or more hydrophilic monomer(s), (iii) at least about 5% of the total weight of (i) to (iii) of at least one partially hydrophilic monomer(s) selected from N-vinyl pyrrolidone; alkyl (metha)acrylate esters of methanol or ethanol; and/or mixtures thereof, the pre-emulsion further comprising effective amounts of the surfactant (c) contacting the pre-emulsion with the water mixture; (d) continuously adding said pre-emulsion to said mixture to polymerize said pre-emulsion to form a latex emulsion, and optionally adding further polymerization initiator during the polymerization of said pre-emulsion; and (e) optionally adjusting the pH of said latex emulsion with a suitable base to a pH 5 of about 6.5 to about 9.

    摘要翻译: 描述了一种制备具有增强的抗水性增白剂的压敏粘合剂的方法,包括以下步骤:(a)在水中形成混合物,其(ⅰ)有效初始量的通过热分解产生自由基的聚合引发剂 以形成混合物和任选的另外的表面活性剂; (ii)有效量的具有末端烯丙基胺部分的水分散性可聚合表面活性剂; 聚氧化烯-1-(烯丙氧基甲基)烷基醚硫酸盐和/或其混合物,(b)形成可聚合水性预乳液,其包含(i)包含至少一种(甲基)丙烯酸烷基酯 至少约30重量%的至少一种苯乙烯类单体的混合物,(ii)(i)至(iii)的总重量的至少约1% 的一种或多种亲水性单体,(iii)至少一种选自N-乙烯基吡咯烷酮的部分亲水性单体的(i)至(iii)的总重量的至少约5% 甲醇或乙醇的(甲基)丙烯酸烷基酯; 和/或其混合物,所述预乳液还包含有效量的所述预乳液与所述水混合物接触的表面活性剂(c); (d)将所述预乳液连续加入到所述混合物中以聚合所述预乳液以形成胶乳乳液,并且任选地在所述预乳液聚合过程中加入其它聚合引发剂; 和(e)任选地将合适的碱调节所述胶乳乳液的pH至约6.5至约9的pH 5。

    AQUEOUS POLYMER DISPERSION AND PROCESS
    10.
    发明申请
    AQUEOUS POLYMER DISPERSION AND PROCESS 审中-公开
    水性聚合物分散体和工艺

    公开(公告)号:US20100081764A1

    公开(公告)日:2010-04-01

    申请号:US12444665

    申请日:2007-10-05

    摘要: There is described a multi step process for preparing an aqueous dispersion of heterogeneous polymer particles by mini-emulsion polymerisation, the process comprising the steps of (I) (a) forming a mixture comprising: (i) water; (ii) at least one stabiliser (such as a surfactant and a hydrophobic co-stabiliser); (iii) at least one tackifier (such as polyterpenes, rosin resins and/or hydrocarbon resins); (iv) at least one α,β-ethylenically unsaturated monomer; (b) applying high shear to the mixture from step (a) to form an essentially stable mini-emulsion comprising an aqueous continuous phase and dispersed therein stabilised droplets of average diameter from about 10 to about 1000 nm, (c) polymerising the monomer(s) within the droplets in the presence of a free radical initiator; (d) adding further monomer to the dispersed phase to form a dispersion; then: (II) using the dispersion from step (I) as a seed to form a dispersion of heterogeneous polymer particles in a subsequent emulsion polymerisation. The resultant tackified PSAs may have a core shell structure and are stable under high shear.

    摘要翻译: 描述了通过微乳液聚合制备非均相聚合物颗粒的水分散体的多步骤方法,该方法包括以下步骤:(I)(a)形成混合物,其包含:(i)水; (ii)至少一种稳定剂(如表面活性剂和疏水性共稳定剂); (iii)至少一种增粘剂(例如多萜烯,松香树脂和/或烃树脂); (iv)至少一种α,β-烯属不饱和单体; (b)对来自步骤(a)的混合物施加高剪切以形成包含水性连续相的基本上稳定的微乳液并分散在其中,平均直径为约10至约1000nm的稳定液滴,(c)使单体聚合 在自由基引发剂的存在下在液滴内; (d)将另外的单体加入到分散相中以形成分散体; 然后:(II)使用来自步骤(I)的分散体作为种子以在随后的乳液聚合中形成非均相聚合物颗粒的分散体。 所得到的增粘PSA可以具有核壳结构,并且在高剪切下是稳定的。