Invention Grant
US08397733B2 Degradable cigarette filter: pill with multilayered coating 有权
可降解香烟过滤嘴:多层涂料丸

Degradable cigarette filter: pill with multilayered coating
Abstract:
A degradable cigarette filter includes a filter element of a bloomed cellulose acetate tow and a plug wrap surrounding the filter element, and a pill dispersed in the tow. The pill includes a material adapted to catalyze hydrolysis of the cellulose acetate tow that is encapsulated with an inner layer of a water soluble or water permeable material and an outer layer of a cellulose acetate having a D.S. in the range of 2.0-2.6.
Public/Granted literature
Information query
Patent Agency Ranking
0/0