Tobacco – Smoke separator or treater – Having a polymer
Patent
1987-01-16
1990-10-09
Millin, V.
Tobacco
Smoke separator or treater
Having a polymer
131361, 264518, 264DIG25, A24D 306, A24D 304
Patent
active
049614150
ABSTRACT:
Nonwoven web comprising thermoplastic meltblown fibers or filaments predominantly present as agglomerates or multiple fused fiber areas. Such agglomerates in the web act as columns and impart a desired degree of strength and resistance to compaction. In contrast to prior art webs where such agglomerates have been considered undesirable, the webs of the present invention find particular utility when formed into cylinders as filter plugs for smoking articles. In smoking articles of the invention, the filter plugs have a desired pressure drop while demonstrating an unexpected degree of firmness, all at an economically attractive cost. Preferred embodiments include those where the machine direction strength to cross machine direction grab tensile ratios in the range of from about 1:1 to 4:1 and the fibers or filaments are made from polypropylene. Other embodiments include webs and filter plugs containing additives distributed throughout the web.
REFERENCES:
patent: 439004 (1890-10-01), Harris
patent: 2966157 (1960-12-01), Touey et al.
patent: 3110642 (1963-11-01), Harrington
patent: 3226795 (1966-01-01), Swerdloff
patent: 3329544 (1967-07-01), Smith et al.
patent: 3393685 (1968-07-01), Mumpower, II
patent: 3396733 (1968-08-01), Allseits et al.
patent: 3407822 (1968-10-01), Touey et al.
patent: 3461882 (1969-08-01), Epstein
patent: 3509009 (1970-04-01), Hartmann
patent: 3538920 (1970-11-01), Davis
patent: 3595245 (1971-07-01), Buntin
patent: 3608564 (1971-09-01), Takahashi
patent: 3749685 (1973-07-01), Johnson, Jr.
patent: 3856025 (1974-12-01), Sato
patent: 3861404 (1975-01-01), Changani
patent: 3880173 (1975-04-01), Hill
patent: 3882877 (1975-05-01), Brackmann
patent: 3887730 (1975-06-01), Rainer
patent: 3930077 (1975-12-01), Levers et al.
patent: 3939849 (1976-02-01), Baxter
patent: 3978185 (1976-08-01), Buntin
patent: 4054550 (1977-10-01), Parker
patent: 4059121 (1977-11-01), Brackmann
patent: 4182350 (1980-01-01), Steinau
patent: 4232130 (1980-11-01), Baxter
patent: 4279848 (1981-07-01), Baxter et al.
patent: 4364403 (1982-12-01), Horsewell et al.
patent: 4366826 (1983-01-01), Horsewell
patent: 4379465 (1983-04-01), Coq
patent: 4546040 (1985-10-01), Knotek
Bullwinkel Edward P.
Cartwright William F.
Chambers, Jr. Leon E.
Durocher Donald F.
Geer Robert G.
Herrick William D.
Kimberly-Clark Corporation
Millin V.
LandOfFree
Controlled draft and efficiency filter element for smoking artic does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Controlled draft and efficiency filter element for smoking artic, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Controlled draft and efficiency filter element for smoking artic will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-968289