IIIHHHHHHHIIIIUS00524967.6A United States Patent (19) 11 Patent Number: 5,249,676 Ashcraft Et Al
IIIHHHHHHHIIIIUS00524967.6A United States Patent (19) 11 Patent Number: 5,249,676 Ashcraft et al. (45) Date of Patent: Oct. 5, 1993 (54 FLAVOR BURST STRUCTURE AND 4,186,743 2/1980 Steiger . METHOD OF MAKING THE SAME 4,254,910 3/1981 Martin . 4,356,115 10/1982 Shibanai et al. ................ 428/905 X (75) Inventors: Charles R. Ashcraft; Milly M. L. 4,484,768 11/1984 Norfleet . Wong, both of Winston-Salem, N.C. 4,487,801 12/1984 Turnbull et al. 4,493,869 i/1985 Sweeny et al. 73) Assignee: R. J. Reynolds Tobacco Company, 4,528,226 7/1985 Sweeny ........................... 428/905 X Winston-Salem, N.C. 4,606,956 8/1986 Charbonneau et al. 21 Appl. No.: 35,537 4,717,017 1/1988 Sprinkel, Jr. et al. 4,720,409 l/1988 Spector ........................... 428/905 X 22) Filed: Mar. 22, 1993 4,720,423 1/1988 Fraser . 4,992,326 2/1991 Dabi................................ 428/402 X Related U.S. Application Data 5,071,704 12/1991 Fischel-Ghodsian ........... 428/905 X 63) Continuation of Ser. No. 696,700, May 7, 1991, aban Primary Examiner-Steven N. Meyers doned. Assistant Examiner-Jacob K. Ackun, Jr. Attorney, Agent, or Firm-Grover M. Myers (51) Int, C. ....................... A24F 15/08; B65D 85/10 (52) U.S.C. .................................... 206/264; 206/273; 57) ABSTRACT 428/905 A flavor burst structure and a method of dispersing a 58) Field of Search ............... 206/242, 245, 264, 271; flavorant are disclosed. The flavor burst structure com 428/40, 41,905, 352 prises a multilayer film with a flavor carrier layer dis (56) References Cited posed between barrier layers.
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