发明授权
- 专利标题: Polyolefin adhesive compositions and articles made therefrom
- 专利标题(中): 聚烯烃粘合剂组合物和由其制成的制品
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申请号: US12472022申请日: 2009-05-26
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公开(公告)号: US08431642B2公开(公告)日: 2013-04-30
- 发明人: Jean M. Tancrede , Christopher L. Curry , David R. Johnsrud , George Rodriguez , Fran A. Shipley
- 申请人: Jean M. Tancrede , Christopher L. Curry , David R. Johnsrud , George Rodriguez , Fran A. Shipley
- 申请人地址: US TX Houston
- 专利权人: Exxonmobil Chemical Patents Inc.
- 当前专利权人: Exxonmobil Chemical Patents Inc.
- 当前专利权人地址: US TX Houston
- 主分类号: D21H19/18
- IPC分类号: D21H19/18
摘要:
Provided are adhesive compositions composed of a polyolefin composition comprising at least about 50 wt. % polypropylene and at least one wax. The polymer compositions have a Dot T-Peel of about 1 Newton or more, a branching index (g′) of 0.95 or less measured at the Mz of the polymer, a molecular weight of 100,000 or less, and the adhesive compositions has a fast set time. The packaging industry desires adhesive compositions having a fast set time, such as those setting in less than five seconds from a molten state at conventional packaging operating temperatures to a solid or quasi solid having favorable Dot T-Peel, set time, and or fiber tear adhesion properties. Polymer based adhesives performing within this window are a favorable alternative to conventional formulated adhesives. The provided adhesive compositions exhibit a favorable balance of properties such as high adhesive strength, wide temperature operating window, and fast set time.