Low flame-spreading cigarette paper

US9903071B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9903071-B2
Application numberUS-201113105707-A
CountryUS
Kind codeB2
Filing dateMay 11, 2011
Priority dateNov 12, 2008
Publication dateFeb 27, 2018
Grant dateFeb 27, 2018

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A cigarette paper exhibiting a low flame-spreading property comprises a base cigarette paper, and a plurality of burn-suppressing regions that are provided spaced apart from each other on one surface of the base cigarette paper. The burn-suppressing regions are formed by coating of a low-methoxyl pectin.

First claim

Opening claim text (preview).

What is claimed is: 1. A cigarette paper exhibiting a low flame-spreading property, comprising: a base cigarette paper; and a plurality of burn-suppressing regions that are provided spaced apart from each other on one surface of the base cigarette paper, wherein said burn-suppressing regions are formed by coating the base cigarette paper with a low-methoxyl pectin having a degree of esterification lower than 50%, wherein the amount of said pectin in the pectin-coated burn-suppressing regions is 1.2 to 2.0 grams per square meter. 2. The cigarette paper according to claim 1 , which provides a cigarette that exhibits a PFLB value of 0 to 25%, when measured according to ASTM E-2187-04. 3. The cigarette paper according to claim 1 , wherein the base cigarette paper has a basis weight of 15 to 30 g/m 2 . 4. The cigarette paper according to claim 1 , wherein the bum-suppressing regions are in a form of a plurality of stripes such that when a tobacco rod is wrapped with the cigarette paper, they extend in a longitudinal direction of the tobacco rod and are spaced apart from each other in a circumferential direction of the tobacco rod. 5. The cigarette paper according to claim 1 , wherein the bum-suppressing regions are in a form of a plurality of annular bands such that when a tobacco rod is wrapped with the cigarette paper, they extend in a circumferential direction of the tobacco rod and are spaced apart from each other in a longitudinal direction of the tobacco rod. 6. The cigarette paper according to claim 1 , wherein the burn-suppressing regions are formed by coating the base cigarette paper with an aqueous solution containing only a low-methoxyl pectin having a degree of esterification lower than 50% as a gel forming agent.

Assignees

Inventors

Classifications

  • Special paper not otherwise provided for, e.g. made by multi-step processes · CPC title

  • D21H19/10Primary

    Coatings without pigments (D21H19/66 takes precedence) · CPC title

  • with extinguishers · CPC title

  • A24D1/025Primary

    the covers having material applied to defined areas, e.g. bands for reducing the ignition propensity · CPC title

  • Ignifugeants · CPC title

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What does patent US9903071B2 cover?
A cigarette paper exhibiting a low flame-spreading property comprises a base cigarette paper, and a plurality of burn-suppressing regions that are provided spaced apart from each other on one surface of the base cigarette paper. The burn-suppressing regions are formed by coating of a low-methoxyl pectin.
Who is the assignee on this patent?
Kominami Takashi, Japan Tobacco Inc
What technology area does this patent fall under?
Primary CPC classification D21H19/10. Mapped technology areas include Textiles & Paper.
When was this patent published?
Publication date Tue Feb 27 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).