Patent ID: 6821589
Filing Date: 2004-11-23
Classification: B65D,C08L,Y10T

Abstract:
A fastener for a plastic bag, comprising:a male track including a male profile and a first fin portion; and a female track including a female profile and a second fin portion, said male and female profiles having complementary cross-sections, at least one of said fin portions made from a first single site catalyst resin, 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 different from said first resin and is 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.