Multi-layered bags with discrete non-continuous lamination
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B32B-007/14
B32B-007/04
B65D-030/08
B30B-011/18
B32B-027/08
B32B-027/32
B32B-003/28
B32B-037/00
B32B-038/06
B31F-001/07
B29C-065/56
B29C-065/00
B32B-007/12
B32B-027/16
B32B-027/30
B32B-038/00
B29L-031/00
B29C-065/08
B29C-065/18
B29C-065/74
B29C-065/02
B29C-065/48
B31B-160/10
B31B-155/00
B31B-070/00
B31B-170/20
출원번호
US-0547049
(2014-11-18)
등록번호
US-10196176
(2019-02-05)
발명자
/ 주소
Fraser, Robert W.
Borchardt, Michael G.
MacPherson, Jack A.
Dorsey, Robert T.
Binger, Scott
Broering, Shaun T.
출원인 / 주소
The Glad Products Company
대리인 / 주소
Feix, Thomas C.
인용정보
피인용 횟수 :
0인용 특허 :
43
초록▼
Multi-layer bags may be formed to include first and second sidewalls joined along a first side edge, an opposite second side edge, and a closed bottom edge. The first and second layers may be non-continuously laminated together in discrete sections to include bonded regions in which the layers are b
Multi-layer bags may be formed to include first and second sidewalls joined along a first side edge, an opposite second side edge, and a closed bottom edge. The first and second layers may be non-continuously laminated together in discrete sections to include bonded regions in which the layers are bonded and unbonded regions in which the layers are not bonded. Such a bag may be described as a “bag-in-a-bag” type configuration in which the inner bag is non-continuously bonded to the outer bag. The inventors have surprisingly found that such configurations of non-continuous bonding provides increased and unexpected strength properties to the multi-layer films and bags.
대표청구항▼
1. A double-walled thermoplastic bag comprising: a first thermoplastic bag having first and second opposing sidewalls joined together along a bottom edge, a first side edge, and a second, opposing side edge, wherein top edges of the first and second opposing sidewalls are at least partially un-joine
1. A double-walled thermoplastic bag comprising: a first thermoplastic bag having first and second opposing sidewalls joined together along a bottom edge, a first side edge, and a second, opposing side edge, wherein top edges of the first and second opposing sidewalls are at least partially un-joined to form an opening to the first thermoplastic bag, the first thermoplastic bag including a first and second sections, the first and second sections each extending from the first side edge to the second side edge, the first section occupying a first area of the first thermoplastic bag and the second section occupying a second section of the first thermoplastic bag;a second thermoplastic bag positioned within the first thermoplastic bag, the second thermoplastic bag having third and fourth opposing sidewalls joined together along a bottom edge, a first side edge, and a second, opposing side edge, wherein top edges of the third and fourth opposing sidewalls are at least partially un-joined to form an opening, the second thermoplastic bag including a first and second sections, the first and second sections each extending from the first side edge to the second side edge, the first section occupying a first area of the second thermoplastic bag and the second section occupying a second section of the second thermoplastic bag;a first pattern of SELFing in the first section of the first and second thermoplastic bags, the first pattern of SELFing comprising a first plurality of non-continuous bonds securing the first section of the first thermoplastic bag to the first section of the second thermoplastic bag, the first plurality of non-continuous bonds comprising bonds arranged in a first bond pattern; anda second pattern of SELFing in the second section of the first and second thermoplastic bags, the second pattern of SELFing comprising a second plurality of non-continuous bonds securing the second section of the first thermoplastic bag to the second of the second thermoplastic bag, wherein the second plurality of non-continuous bonds comprise bonds arranged in a second bond pattern that differs from the first bond pattern;wherein: the first thermoplastic bag includes a third section, the third section extending from the first side edge to the second side edge of the first thermoplastic bag, the third section occupying a third area of the first thermoplastic bag extending from the bottom edge toward the opening of the first thermoplastic bag;the second thermoplastic bag includes a third section, the third section extending from the first side edge to the second side edge of the second thermoplastic bag, the third section occupying a third area of the second thermoplastic bag extending from the bottom edge toward the opening of the second thermoplastic bag;the double-walled thermoplastic bag is devoid of non-continuous bonds securing third section of the first thermoplastic bag to the third section of the second thermoplastic bag;the first thermoplastic bag includes a fourth section, the fourth section extending from the first side edge to the second side edge of the first thermoplastic bag, the fourth section occupying a fourth area of the first thermoplastic bag extending from proximate the opening of the first thermoplastic bag toward the bottom edge of the first thermoplastic bag;the second thermoplastic bag includes a fourth section, the fourth section extending from the first side edge to the second side edge of the second thermoplastic bag, the fourth section occupying a fourth area of the second thermoplastic bag extending from proximate the opening of the first thermoplastic bag toward the bottom edge of the second thermoplastic bag;the double-walled thermoplastic bag is devoid of non-continuous bonds securing fourth section of the first thermoplastic bag to the fourth section of the second thermoplastic bag;the third and fourth sections of the first and second thermoplastic bags are devoid of incremental stretching;the first and second sections of the first and second thermoplastic bags are incrementally stretched; andthe first plurality of non-continuous bonds comprise bonds formed from SELFing and the second plurality of non-continuous bonds comprise bonds formed from SELFing. 2. The double-walled thermoplastic bag as recited in claim 1, wherein the first and second non-continuous bonds comprise diamond configurations of differing size. 3. The double-walled thermoplastic bag as recited in claim 1, further comprising a third plurality of non-continuous bonds formed from TD ring rolling in the first section of the first and second thermoplastic bags. 4. The double-walled thermoplastic bag as recited in claim 3, wherein the second sections of the first and second thermoplastic bags are devoid of non-continuous bonds formed from TD ring rolling. 5. The double-walled thermoplastic bag as recited in claim 1, wherein: the first plurality of non-continuous bonds comprise bonds with a first bond density; andthe second plurality of non-continuous bonds comprise bonds with a second bond density differing from the first bond density. 6. The double-walled thermoplastic bag as recited in claim 1, wherein the first plurality of non-continuous bonds and the second plurality of non-continuous bonds have a strength tailored to cause the bonds of the first plurality of non-continuous bonds and the second plurality of non-continuous bonds to separate prior to the first, second, third, or fourth sidewalls tearing when a strain is applied to the double-walled thermoplastic bag. 7. A multi-layer thermoplastic bag comprising: a first sidewall having an inner layer and an adjacent outer layer;a second sidewall having an inner layer and an adjacent outer layer, wherein the second sidewall is joined to the first sidewall along a first side edge, an opposing second side edge, and a bottom edge; andat least a portion of respective top edges of the first and second sidewalls define an opening of the multi-layered bag;non-continuous bonds of a first type securing a first section of the inner layer of first sidewall to a first section of the outer layer of the first sidewall, the first type of non-continuous bonds comprising bonds formed from TD ring rolling; andnon-continuous bonds of a second type securing a second section of the inner layer of first sidewall to a second section of the outer layer of the first sidewall, the second type of non-continuous bonds comprising bonds formed from SELFing. 8. The multi-layer thermoplastic bag as recited claim 7, wherein the first type of non-continuous bonds and the second type of non-continuous bonds have a strength tailored to cause the bonds of the first type of non-continuous bonds and the second type of non-continuous bonds to separate prior to the inner or outer layers of the first sidewall tearing when a strain is applied to the multi-layer thermoplastic bag. 9. The multi-layer thermoplastic bag as recited claim 7, wherein the first and second sections of the inner and outer layers of the first sidewall comprise incremental stretching. 10. The multi-layer thermoplastic bag as recited claim 9, wherein the entire inner and outer layers of the first sidewall comprise incremental stretching. 11. The multi-layer thermoplastic bag as recited claim 9, wherein an upper section of each of the inner and outer layers of the first sidewall directly adjacent the opening are devoid of incremental stretching and devoid of non-continuous bonds of the first type and the second type. 12. The multi-layer thermoplastic bag as recited claim 11, wherein a bottom section of each of the inner and outer layers of the first sidewall that directly adjacent the bottom edge are devoid of incremental stretching and devoid of non-continuous bonds of the first type and the second type. 13. The multi-layer thermoplastic bag as recited in claim 7, wherein the second sections of the inner and outer layers of the first sidewall are devoid of non-continuous bonds formed from TD ring rolling. 14. The multi-layer thermoplastic bag as recited in claim 7, wherein the first type of non-continuous bonds further comprise bonds formed from bonds formed from MD ring rolling.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (43)
Blackburn, William A., Anti-static multilayer laminate comprising a non-woven layer extrusion coated with polymeric laminae, and method of making the same.
Farrington ; Jr. Theodore E. (Milford ME) Spahni Milton D. (Okeana OH) Rattray Thomas (Cincinnati OH), Disposable absorbent mat structure for removal and retention of wet and dry soil.
Rasmussen, Ole-Bendt, Method and apparatus for manufacturing a transversely oriented film of thermoplastic polymer material and products obtainable by the same method.
Wu Pai-Chuan ; Cancio Leopoldo V. ; Sharma Girish K., Method of making a cloth-like microporous laminate of a nonwoven fibrous web and thermoplastic film having air and moist.
Wu Pai-Chuan (Cincinnati OH) Ryle Thomas R. (Burlington KY) Mortellite Robert M. (Hamilton OH) Toppen John D. (Loveland OH), Method of making an ultra soft cloth-like embossed plastic film having post-embossed stretched areas.
Rasmussen Ole-Bendt (23 ; Forchwaldstrasse CH 6318 Walchwil CHX), Tubular bag with shock absorber band tube for making such bag, and method for its production.
Chappell Charles W. (West Chester OH) Sorensen Eugene R. (Sharonville OH) Buell Kenneth B. (Cincinnati OH) Curro John J. (Cincinnati OH) Mansfield Michele A. (Cincinnati OH), Web materials exhibiting elastic-like behavior.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.