Degradable adhesive compositions for smoking articles

• Main Authors: POUND ROBERT JEREMY, OGLESBY ROBERT LESLIE, SEBASTIAN ANDRIES DON, CHAPMAN PAUL STUART
• Format: Patent
• Language: English
• Published: 10.02.2015
• Subjects: CIGARETTES; CIGARS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HUMAN NECESSITIES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES; MATCH BOXES; MOUTHPIECES FOR CIGARS OR CIGARETTES; SMOKERS' REQUISITES; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TOBACCO; TOBACCO SMOKE FILTERS

A filtered smoking article is provided, which includes a tobacco-containing rod surrounded by a wrapping material; a filter element surrounded by a plug wrap adjacent to the tobacco-containing rod; and a tipping material securing the tobacco-containing rod to the filter element, the tipping material overlying the plug wrap of the filter element and a portion of the wrapping material of the tobacco-containing rod, wherein at least one of the plug wrap, the tipping material, and the wrapping material surrounding the tobacco-containing rod are secured by an adhesive composition comprising a thermoplastic starch polymer. The adhesive composition can include a blend of the thermoplastic starch polymer with a second biodegradable polymer, such as polyvinyl alcohol, aliphatic polyesters, aliphatic polyurethanes, cis-polyisoprene, cis-polybutadiene, polyhydroxy alkanoates, polyanhydrides, and copolymers and blends thereof.