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US 8,707,966 B2Granted
Disintegratable plug wraps and their applications
AssigneePhilip Morris USA Inc.
InventorsMilton E. Parrish, Lixin L. Xue, Jon A. Regrut, Marvyn Steele, Thomas J. Gannon, Wesley Gilliam Sanderson
Life of this patent
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Abstract
A filter rod used in manufacture of a smoking article contains: (a) a rod of filter material, and (b) a plug wrap surrounding the rod of filter material. The overlapping side edges of the plug wrap are secured together with a plug wrap adhesive and the plug wrap adhesive comprises a disintegration accelerating agent. Alternatively or in addition, the plug wrap may contain perforations.
Claims21
A filter rod used in manufacture of a smoking article, comprising:
- (a) a rod of filter material, and
- (b) a plug wrap surrounding the rod of filter material with overlapping side edges of the plug wrap being secured together with a plug wrap adhesive,
- wherein the plug wrap adhesive comprises a disintegration accelerating agent which comprises an enzyme, and, a water soluble or insoluble adhesive selected from the group consisting of polyvinyl acetate and polyvinyl alcohol.
A filter rod used in manufacture of a smoking article, comprising:
- (a) a rod of filter material, and
- (b) a plug wrap surrounding the rod of filter material with overlapping side edges of the plug wrap being secured together with a plug wrap adhesive,
- wherein the plug wrap comprises one or more rows of perforations, and
- wherein the plug wrap adhesive substantially consists of a disintegration accelerating agent which comprises an enzyme, and, a water soluble or insoluble adhesive selected from the group consisting of polyvinyl acetate and polyvinyl alcohol.
1 more element
Dependencies are inferred from the claim text.