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1. 发明授权

US07115682B2 Removable, water-whitening resistant pressure sensitive adhesives 失效
标题翻译：可拆卸，防水增白的压敏粘合剂
公开(公告)号：US07115682B2
公开(公告)日：2006-10-03
申请号：US10670926
申请日：2003-09-25
申请人： Jong-Shing Guo , Augustin T. Chen , Sharon D. Trembley
发明人： Jong-Shing Guo , Augustin T. Chen , Sharon D. Trembley
IPC分类号： C08K5/24
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 nm.
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400nm。

2. 发明授权

US07339002B2 Removable, water-whitening resistant pressure sensitive adhesives 失效
标题翻译：可拆卸，防水增白的压敏粘合剂
公开(公告)号：US07339002B2
公开(公告)日：2008-03-04
申请号：US10671095
申请日：2003-09-25
申请人： Jong-Shing Guo , Augustin T. Chen , Sharon D. Trembley
发明人： Jong-Shing Guo , Augustin T. Chen , Sharon D. Trembley
IPC分类号： C08F220/10
CPC分类号： C09J133/04 , C08F220/18 , C08L2312/00 , C09J133/14
摘要： Removable, water-whitening resistant pressure sensitive adhesive (PSA) comprising a crosslinked aqueous emulsion polymer comprising (a) at least one hydrophobic monomer; (b) at least about 2 wt. % of at least one hydrophilic monomer; and (c) at least about 5 wt. % of at least one partially hydrophilic monomer; wherein the crosslinked aqueous emulsion polymer is crosslinked with an effective amount of at least one polyfunctional aziridine crosslinker, and the wt. % of monomers (a), (b), and (c) are based on the total weight of monomers (a), (b), and (c).
摘要翻译：包含交联的水性乳液聚合物的可去除水分增白的压敏粘合剂（PSA），其包含（a）至少一种疏水性单体; （b）至少约2重量％％的至少一种亲水性单体; 和（c）至少约5wt。％至少一种部分亲水性单体; 其中所述交联的水性乳液聚合物与有效量的至少一种多官能氮丙啶交联剂交联，单体（a），（b）和（c）的％基于单体（a），（b）和（c）的总重量。

3. 发明授权

US07022745B2 Process for forming solid pressure sensitive adhesive polymer microspheres 失效
公开(公告)号：US07022745B2
公开(公告)日：2006-04-04
申请号：US10272409
申请日：2002-10-15
申请人： Jong-Shing Guo , Augustin T. Chen , Sharon D. Trembley
发明人： Jong-Shing Guo , Augustin T. Chen , Sharon D. Trembley
IPC分类号： C08J9/16
CPC分类号： C08F220/12 , C08F220/04 , C08F220/18 , C08L2666/02 , C09J133/066 , Y10T428/2982 , Y10T428/2985 , Y10T428/2993
摘要： In forming pressure sensitive adhesive microspheres by copolymerizing a non-ionic monomer of an alkyl acrylate or alkyl methacrylate ester of a non-tertiary alcohol and an acid monomer copolymerizable with said non-ionic monomer, an electrolyte is present during the polymerization to promote formation of solid rather than hollow microspheres.

4. 发明授权

US06864335B2 Process for forming solid pressure sensitive adhesive polymer microspheres 失效
标题翻译：形成固体压敏胶聚合物微球的方法
公开(公告)号：US06864335B2
公开(公告)日：2005-03-08
申请号：US09886729
申请日：2001-06-21
申请人： Jong-Shing Guo , Sharon D. Trembley
发明人： Jong-Shing Guo , Sharon D. Trembley
IPC分类号： C08F2/24 , C08F2/00 , C08F220/00 , C08F220/18 , C09J133/02 , C09J133/08 , C09J133/06
CPC分类号： C09J133/08 , C08F220/18 , C08L2205/18 , C09J133/02 , C09J2201/606
摘要： In forming pressure sensitive adhesive microspheres by copolymerizing a non-ionic monomer of an alkyl acrylate or alkyl methacrylate ester of a non-tertiary alcohol and an ionic monomer copolymerizable with said non-ionic monomer, non-free radically polymerizable acid is present during the polymerization to promote formation of solid rather than hollow microspheres and to reduce residual unconverted ionic monomer. These microspheres exhibit reduced adhesive transfer in downstream use as a repositionable pressure sensitive adhesive. A water soluble initiator is optionally added to the polymerization mixture after achieving about 90% conversion of the non-ionic monomer to further reduce residual unconverted ionic monomer.
摘要翻译：在通过使非叔醇的丙烯酸烷基酯或甲基丙烯酸烷基酯的非离子单体与可与所述非离子单体共聚的离子单体的非离子单体共聚形成压敏粘合剂微球时，在聚合过程中存在非自由基可聚合酸以促进固体而不是中空微球的形成并减少残留的未转化的离子单体。这些微球在下游使用中表现出降低的粘合剂转移作为可重新定位的压敏粘合剂。在达到约90％的非离子单体转化率之后，任选将水溶性引发剂加入到聚合混合物中，以进一步减少残留的未转化的离子单体。

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