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HOT-MELT ADHESIVE BASED ON BLEND OF AMORPHOUS AND CRYSTALLINE POLYMERS FOR MULTILAYER BONDING
HOT-MELT ADHESIVE BASED ON BLEND OF AMORPHOUS AND CRYSTALLINE POLYMERS FOR MULTILAYER BONDING
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机译:基于非晶态和结晶态聚合物共混的热熔胶多层粘合
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摘要
The present invention is generally directed to adhesive compositions comprising selected ratios of crystalline and amorphous polymers. In some versions of the invention, polymers capable of existing in different configurations (e.g., a polymer such as polypropylene which can exist in an atactic, syndiotactic. or isotactic configuration) is used to prepare adhesives of the present invention. As an example, a selected amount of isotactic polypropylene is blended with a selected amount of atactic polypropylene to prepare an adhesive composition having one or more performance properties (e.g., bond strength) that are superior to the performance properties of a conventional hot-melt adhesive.
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