US 7,094,455 B2 · Fastener tape, method of and apparatus for making fastener tape, method of using fastener tape, and reclosable bag utilizing fastener tape

Abstract

A fastener tape for use in the manufacture of reclosable plastic bags is provided. The fastener tape comprises an intermediate layer and a reclosable fastener profile thereon. The intermediate layer includes three layers of co-extruded plastic, with not more than 4% EVA as the outer two layers and HDPE as the middle layer. The intermediate layer is folded so as to bring portions of the intermediate layer into an opposing relationship. These opposing portions are then sealed together by a pair of seal bars. By carefully controlling the sealing temperature, a consistent peel seal is created between the opposing portions of the intermediate layer without the need for an adhesive.

Claims4

Dependent claims

A reclosable plastic bag comprising:

a plastic body having an opening and opposing walls;
and
a plastic fastener tape mounted in said opening, said fastener tape comprising a profile fastener carried by an intermediate layer, said intermediate layer being defined by a lip and a wall opposite said lip, said profile fastener comprises interlocked profiles;
wherein portions of said lip and said opposite wall are sealed to opposite bag walls;
wherein said lip is peel sealed to said opposite wall on a side of said profile fastener adjacent said bag opening forming a hermetic seal;
wherein said lip is sealed to said opposite wall at the ends of said fastener tape;
and wherein said end seals merge with said peel seal.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

10/830,165Filed 21 Apr 2004 · division

Priority

27 Aug 1998

Published

US 2004/0195121 A17 Oct 2004

Granted

22 Aug 2006

Term ends

Not estimatedThe source records don’t support an estimate.

Classification22 codes

B44D 2/002
Special techniques in artistic painting or drawing, e.g. oil painting, water painting, pastel painting, relief painting: kits for drawing or painting
A45C 3/02
Flexible luggage; Handbags: briefcases or the like
A45C 11/24
Receptacles for purposes not provided for in groups A45C1/00-A45C9/00: etuis for purposes not covered by a single one of groups A45C11/02 -…
A45C 11/36
Receptacles for purposes not provided for in groups A45C1/00-A45C9/00: cases for drawing or like instruments

Family

Application09/140,565Parent of this continuation-in-part · filed 27 Aug 1998

Application09/365,933Parent of this division · filed 2 Aug 1999

Application09/731,232Parent of this division · filed 6 Dec 2000

Application10/408,862Parent of this division · filed 4 Apr 2003

US 2004/0197503 A1Pre-grant publication · published 7 Oct 2004

US 6,767,423 B1Parent of this division

US 6,564,843 B2Parent of this division

US 6,383,600 B1Parent of this division

US 6,110,586 AParent of this continuation-in-part

Application09/365,933Parent of this continuation-in-part

US 2001/0003018 A1Published application

US 2004/0195121 A1Published application

US 7,070,047 B2Related patent

US 7,094,455 B2This patent

From the US filing history. Foreign family members aren’t listed.

Fastener tape, method of and apparatus for making fastener tape, method of using fastener tape, and reclosable bag utilizing fastener tape

Life of this patent

Fastener tape, method of and apparatus for making fastener tape, method of using fastener tape, and reclosable bag utilizing fastener tape

Life of this patent

Abstract

Claims4