Hot melt adhesives containing styrene butadiene block copolymer
Номер патента: EP2178974A1
Опубликовано: 28-04-2010
Автор(ы): Alethea Pollock, Justin Mehaffy, Michael G. Harwell, Qiwei He, Yuhong Hu
Принадлежит: Henkel AG and Co KGaA
Опубликовано: 28-04-2010
Автор(ы): Alethea Pollock, Justin Mehaffy, Michael G. Harwell, Qiwei He, Yuhong Hu
Принадлежит: Henkel AG and Co KGaA
Реферат: Hot melt adhesive compositions containing hyper-branched SBS block copolymers and end use applications thereof. The hyper-branched SBS is characterized in having a ratio between light-scattering molecular weight {of non-di-block polymer) and GPC molecular weight (of non-di-block polymer) greater than 1.4 and having ratio between light scattering molecular weight molecular weight (of non-di-bfock polymer) and light scattering molecular weight molecular weight (of di-block polymer) greater than 5. The ratio between light scattering molecular weight MW (of non-di-block polymer) and light scattering molecular weight MW (of di-block polymer) also defines the number of arms for the hyper branched structure. The weight average molecular weight of each arm of the hyper-branched SBS block copolymer is less than about 100,000. These are multipurpose adhesives finding utility as packaging, labeling, construction and positioning adhesives, and are particularly well suited for use as elastic attachment adhesives in the manufacture of elastic-containing products, such as disposable absorbent elastic articles.
Hot melt pressure-sensitive adhesives for paper labels
Номер патента: RU2415171C2. Автор: Давид ГУБАР,Роберт Джон ХЕЙЕДЖЕР. Владелец: Бостик С.А.. Дата публикации: 2011-03-27.