A plastic bag comprises first and second panels each having a top, a bottom, and first and second opposing sides. The first and second panels are joined to each other along their respective bottoms, their respective first opposing sides, and their respective second opposing sides. The plastic bag in
A plastic bag comprises first and second panels each having a top, a bottom, and first and second opposing sides. The first and second panels are joined to each other along their respective bottoms, their respective first opposing sides, and their respective second opposing sides. The plastic bag includes a zipper having a male and female track. The male track includes a male profile and a first fin, in which the first fin is affixed to the first panel in proximity to the top of said first panel. The female track includes a female profile and a second fin, in which the second fin is affixed to the second panel in proximity to the top of said second panel. The male and female profiles having complementary cross-sections. The inventive fins comprise a first resin and, optionally, a second resin which, along with the fins seals, are able to withstand greater forces and more adverse conditions. At least one of the fins comprises a first resin having a polydispersity of about 1 to about 4, a melt index of about 0.2 to about 20, and a melt flow ratio of about 12 to about 35. The second resin, if used, may either be coextruded or blended with the first resin.
대표청구항▼
1. A zippered plastic bag comprising:first and second panels each having a top, a bottom, and first and second opposing sides, said first and second panels being joined to each other along their respective bottoms, their respective first opposing sides, and their respective second opposing sides; an
1. A zippered plastic bag comprising:first and second panels each having a top, a bottom, and first and second opposing sides, said first and second panels being joined to each other along their respective bottoms, their respective first opposing sides, and their respective second opposing sides; and a zipper including a male and female track, said male track including a male profile and a first fin portion, said first fin portion being affixed to said first panel in proximity to said top of said first panel, said female track including a female profile and a second fin portion, said second fin portion being affixed to said second panel in proximity to said top of said second panel, said male and female profiles having complementary cross-sections, said first and second fin portions being attached, at least one of said fin portions made from a first resin which is prepared in the presence of a single site catalyst, said first resin having a polydispersity of from about 2 to about 3, a melt index of from about 0.2 to about 20 g/10 min., and a melt flow ratio of from about 12 to about 35, and a second resin which is a low density polyethylene, at least one of said fin portions comprising from about 5 to about 50 wt. % of said first resin, and from about 50 to about 95 wt. % of said second resin; and a slider being located on said zipper, said slider cooperating with said zipper in opening and closing said plastic bag by moving along said male and female tracks.
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이 특허에 인용된 특허 (64)
Richardson Dale S. (Westerville OH) Smith Roger W. (Grove City OH), Axial assembly of multi-part slider on zipper.
Lai Shih-Yaw (Sugar Land TX) Wilson John R. (Richwood TX) Knight George W. (Lake Jackson TX) Stevens James C. (Midland MI), Elastic substantially linear olefin polymers.
Lai Shih-Yaw (Sugar Land TX) Wilson John R. (Richwood TX) Knight George W. (Lake Jackson TX) Stevens James C. (Midland MI) Chum Pak-Wing S. (Lake Jackson TX), Elastic substantially linear olefin polymers.
Richardson Dale S. (Westerville OH) Smith Roger W. (Jackson Township Jackson County OH), Flexible plastic zipper slider with rigidizing structure for assembly with profiled plastic zipper.
Mehta Aspy K. (Humble TX) Chen Michael C. (Duisburg-Tervuren BEX), Heat sealable blend of very low density polyethylene or plastomer with polypropylene based polymers and heat sealable fi.
Stehling Ferdinand C. (Baytown TX) Speed Charles S. (Dayton TX) Welborn ; Jr. ; deceased Howard C. (late of Houston TX by John L. Zipprich ; II ; executor), Linear ethylene interpolymer blends of interpolymers having narrow molecular weight and composition distributions.
Heintz David A. (Richmond VA) Simonsen Steven H. (Appleton WI) Wegner Wayne M. (Appleton WI), Method of producing a sealing system for a reclosable webbed-wall package, and system made.
Fischer David C. (Pittsford NY) Ririe James I. (Fairport NY) Mink Richard (Rochester NY) Bates Monty (Victor NY), Packaging film, packages and methods for using them.
Richardson Dale S. (Westerville OH) Smith Roger W. (Grove City OH), Plastic reclosable fastener with slider detent lock for locking slider in closed position.
Richardson Dale S. (Westerville OH) Smith Roger W. (Grove City OH), Plastic reclosable fastener with structure for restraining slider in closed position and for facilitating reopening fast.
Branson Mark E. (Shelbyville IN) Edelman Paul F. (Greenwood IN), Reclosable bag having a top closure attached to a bag body composed of multiple thermoplastic layers.
Dobreski David V. (Fairport NY) McManus Michael W. (East Rochester NY) Provan Alexander R. (Canandaigua NY) Thomas Toby R. (Pittsford NY), Tamper-evident reclosable plastic bag with slider.
Robinson John P. (Clifton NJ) Stadick William R. (North Brunswick NJ) Clawges Thomas L. (Spotswood NJ) Zuvich John A. (Newark NJ) Trigger Daniel (Parsippany NJ), Welding thermoplastic material with a laser.
Hartzell, Mark; McLellan, Alfred A.; Johnson, Sarajane; Woodham Grant, Roseann; Millslagle, Lesley M.; Cash, Mary K., Bag having an improved heat seal closure and associated methods.
Petkovsek, Gregory L.; Dowler, Roger E.; Thompson, Gregg; Aversa, Samuel D., Child resistant zipper closure for recloseable pouch with double slider and methods.
Petkovsek, Gregory L.; Dowler, Roger E.; Thompson, Gregg; Aversa, Samuel D., Child resistant zipper closure for recloseable pouch with double slider and methods.
Hartzell,Mark; McLellan,Alfred A.; Johnson,Sarajane; Woodham Grant,Roseann; Millslagle,Lesley M.; Cash,Mary K., Enhanced slider zipper multiwall bag and associated methods.
Hartzell, Mark; McLellan, Alfred A.; Johnson, Sarajane; Woodham-Grant, Roseann; Millslagle, Lesley M.; Cash, Mary K., Multiwall bag with zipper and fin.
Dais, Brian C.; Turvey, Robert R.; Pawloski, James C.; Ackerman, Bryan L.; Zimmerman, Daniel P., Pouch and airtight resealable closure mechanism therefor.
Dais, Brian C.; Turvey, Robert R.; Pawloski, James C.; Ackerman, Bryan L.; Zimmerman, Daniel P., Pouch and airtight resealable closure mechanism therefor.
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