Patent · US Active

Hydrophobic paper

US10542773B2 · kind B2 · utility

2Cited by

12References

18Claims

0Family size

Assignee

Philip Morris Products S.A. · CH

Inventors

Aurelien Guyard · Orbe, CH
Ping Li · Lausanne, CH
Gianluca Sechi · Neuchâtel, CH

Key dates

Filing date	Jul 17, 2014
Grant date	Jan 28, 2020
Priority date	—
Expiry date	Apr 11, 2035

Classification

Technology area (CPC A)Human Necessities
CPC primaryA24D1/22
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

A smoking article includes a tobacco substrate and a wrapper disposed about the tobacco substrate. At least an inner or outer surface of the wrapper is hydrophobic via hydrophobic groups chemically bonded to the wrapper. The wrapper has a permeability of at least about 15 CORESTA units.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.