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US 6,883,524 B2Granted
Wrapper paper for smoking articles
AssigneeJapan Tobacco Inc.
InventorsSatoshi Ishikawa, Takeo Tsutsumi, Makoto Sato, Kaoru Inoue
Life of this patent
Estimating the term…
Abstract
Wrapper paper for a smoking article carries 1 g/m2 to 15 g/m2 of a burn adjusting agent and 1 g/m2 to 30 g/m2 of a calcium phosphate-based compound in the wrapper paper.
Claims4
Wrapper paper for a smoking article, said wrapper paper carrying 1 g/m2 to 15 g/m2 of a burn adjusting agent, and 1 g/m2 to 30 g/m2 of a calcium phosphate-based compound in the wrapper paper;
- wherein the calcium phosphate-based compound is tricalcium phosphate and the burn adjusting agent comprises a citrate salt.
Dependencies are inferred from the claim text.