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US 2026/0248178 A1Published application
Rod filters having high hardness values
AssigneeEastman Chemical Company
InventorsPablo Verdu Blasco, Cameron Cobb Jenkins
Life of this patent
Estimating the term…
Abstract
A filter product for use in a consumer product. The consumer product may comprise a tobacco product, such as a combustible cigarette or a heat-not-burn stick. The filter product may comprise a plurality of cellulose acetate fibers having hollow core sections.
Claims20
A filter product for use in a consumer product, said filter product comprising:
- a cylindrical rod formed from a plurality of cellulose acetate fibers, wherein the fibers include hollow core sections,
- wherein the cellulose acetate within said rod has a mass of no more than 560 mg, and said rod has a hardness of at least 83.0%.
A filter product for use in a consumer product, said filter product comprising:
- a cylindrical rod formed from a plurality of cellulose acetate fibers, wherein the fibers include hollow core sections,
- wherein the cellulose acetate within said rod has a mass of no more than 540 mg, and said rod has a hardness of at least 83.5%.
Dependencies are inferred from the claim text.