Philip Morris USA Inc.

Philip Morris Inc.

Altria Client Services LLC

Philip Morris Products S.a.

Philip Morris Products Inc.

Jay A Fournier

John Bryant Paine, Iii

Zhaohua Luan

Munmaya K Mishra

Georgios D Karles

Douglas Antonio Fernandez

Shuzhong Zhuang

Jose Nepomuceno

Diane L Gee

Lixin Xue

Kent Brian Koller

Ulrike Becker

Susan E Wrenn

Timothy Scott Sherwood

Jeffrey I Seeman

Tony M Howell

John B Paine

Peter J Lipowicz

Kenneth F Podraza

Marc Robert Krauss

Andrew G Kallianos

Charles E Thomas, Jr

Walter Allen Nichols

F Murphy Sprinkel, Jr

John R Hearn

Zuyin Yang

Jerry F Whidby

Ila Skinner

Martin T Garthaffner

Willie G Houck, Jr

William J Crowe

Richard Jupe

Robert L Ripley

John Layman

Donald M Schleich

Azzedine Bensalem

Charles Edwin Thomas, Jr

Constance Morgan

Diane Kellogg

John Mathew Adams

Mohammad R Hajaligol

Grier S Fleischhauer

Sarojini Deevi

Michael L Watkins

Mary Ellen Counts

Gordon H Bokelman

Robert L Augustine

Setrak K Tanielyan

Constance H Morgan

Patrick H Hayes

Kenneth H Shafer

Warren D Winterson

Francis M Sprinkel

Robert E Lee

John M Campbell

Joseph L Banyasz

Jose G Nepomuceno

Warren Chang

John F Cunningham

H Neal Nunnally

Liqun Yu

Wynn R Raymond

Woontung G Chan

Jose M Nepomuceno

Donald B Losee, Jr

John D Naworal

Joshua Powell

Jose M G Nepomuceno

Kathy E Paine

Luan Zhaohua

Aubry T Burton

Donald Bruce Losee

Charles E Thomas

Willie G Houck

Donald B Losee

Diane Kellog

John Bryant Iii Paine

John B Iii Paine

Electrically heated cigarettes used in an electrical smoking system include a flavoring-release additive and sorbent effective to remove one or more gas-phase constituents of mainstream tobacco smoke. The flavoring-release additive includes gamma cyclodextrin and at least one flavoring. Flavoring is released in a cigarette upon the flavoring-release additive reaching at least a minimum temperature during smoking. The flavoring-release additive can have various forms including, for example, powder and films.

Gamma cyclodextrin flavoring-release additives

Cigarettes are provided which contain a filtering system and flavorants encapsulated with polyvinyl acetate, wherein deactivation of a sorbent by the flavorant is reduced through the encapsulation of the flavorant within the polyvinyl acetate. A preferred flavorant is menthol. The encapsulated flavorants are prepared by mixing at least one flavorant with polyvinyl acetate and a solvent, such as ethanol, and forming the encapsulated flavorants. Methods of making cigarettes and smoking the articles are also provided.

Menthol cigarette

Delivery of additives in a smoking article is provided through thermally degradable, robust immobilized additive inserts. Additives can be immobilized in an elongated device or an insert, wherein the elongated device or the insert is sufficiently robust to allow the elongated device or the insert to be manually or machine inserted into a smoking article while maintaining the structure of the elongated device or the insert. By providing additives in the form of thermally degradable immobilized additive inserts, migration and/or loss of the additives in a smoking article prior to smoking can be reduced.

Immobilized additive inserts

Improved delivery of additive materials to cigarettes is provided through the use of one or more capsules containing additive materials, such as flavor components, in the filter section of a cigarette. The sealed capsule or capsules are subjected to an external force, such as squeezing, by a smoker prior to or during smoking of the cigarette in order to release at least a portion of the additive material from the one or more capsules and expose the additive material to mainstream smoke passing through the filter. The sealed capsules provide a barrier between the additive materials and other cigarettes components, such as sorbents or filter materials, in order to reduce additive material migration into the other cigarette components prior to desired use.

Flavor capsule for enhanced flavor delivery in cigarettes

Improved delivery of additives is provided through encapsulation. The encapsulated additives can be formed by encapsulating additives using co-ionic cross-linking, in-situ overcoating, and/or step-growth overcoating. By encapsulating additives, additives can be made heat and moisture stable and migration and/or loss of the additives within a cigarette, such as an activated carbon containing cigarette, can be reduced.

Encapsulated flavorant designed for thermal release and cigarette bearing the same

A tobacco smoking mixture and/or a cigarette wrapper with high-temperature ammonia-release agents therein are provided, wherein the high-temperature ammonia-release agents are present in an amount effective to reduce the cytotoxicity of gas phase or particulate matter formed during smoking of the cigarette. The high-temperature ammonia-release agents can be formed by heating an aqueous mixture of an iron precursor compound, an ammonia source compound and an acid.

Synthesis and incorporation of high-temperature ammonia-release agent in lit-end cigarettes

Smoking articles which involve the use of amphiphile-modified sorbents are disclosed. The amphiphile-modified sorbent has at least one amphiphilic compound bound to an inorganic molecular sieve substrate. The amphiphile-modified sorbent selectively removes certain constituents from cigarette smoke, while maintaining other constituents, such as those that contribute to flavor. Methods for making cigarette filters and smoking articles using amphiphile-modified sorbents, as well as methods for smoking a cigarette containing an amphiphile-modified sorbent, are also provided.

Amphiphile-modified sorbents in smoking articles and filters

A tobacco smoking mixture and/or a cigarette wrapper with high-temperature ammonia-release agents therein are provided, wherein the high-temperature ammonia-release agents are present in an amount effective to reduce the cytotoxicity of gas phase or particulate matter formed during smoking of the cigarette. The high-temperature ammonia-release agents are capable of reducing the cytotoxicity of gas phase or particulate matter by evolving ammonia at temperatures greater than about 200&#xb0; C., wherein the ammonia can interact with the particulate matter. Additionally, the high-temperature ammonia-release agents can be formed by heating an aqueous mixture of an iron precursor compound, an ammonia source compound and an acid.

Growing community of inventors

Richmond, VA, United States of America

Jay A Fournier