Invention Grant
- Patent Title: Hot melt adhesives containing styrene butadiene block copolymer
- Patent Title (中): 含有苯乙烯丁二烯嵌段共聚物的热熔胶
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Application No.: US12705742Application Date: 2010-02-15
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Publication No.: US08378015B2Publication Date: 2013-02-19
- Inventor: Qiwei He , Yuhong Hu , Alethea Pollock , Justin Mehaffy , Michael G. Harwell
- Applicant: Qiwei He , Yuhong Hu , Alethea Pollock , Justin Mehaffy , Michael G. Harwell
- Applicant Address: DE Duesseldorf
- Assignee: Henkel AG & Co. KGaA
- Current Assignee: Henkel AG & Co. KGaA
- Current Assignee Address: DE Duesseldorf
- Agent Sun Hee Lehmann
- Main IPC: B60C1/00
- IPC: B60C1/00

Abstract:
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-block 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.
Public/Granted literature
- US20100210163A1 HOT MELT ADHESIVES CONTAINING STYRENE BUTADIENE BLOCK COPOLYMER Public/Granted day:2010-08-19
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