|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||383/104 ; 383/119 ; 493/194|
|우선권정보||JP-0071298 (1991-05-29); JP-0051203 (1991-07-03); JP-0313271 (1991-11-01); JP-0114117 (1992-04-07)|
|§371/§102 date||19930129 (19930129)|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 49 인용 특허 : 0|
A self-supporting bag comprising a part constituting the trunk and a part constituting the bottom both made of a multilayer plastic film comprising a heat adhesive plastic layer as the inner layer thereof is provided. The inner layer or the outer layer of the multilayer plastic film of the part constituting the trunk has a section comprising convex parts and concave parts adjacent with each other. The linear ribs are formed by pressing a positive mold having linear protrusions at the top face against the multilayer plastic film to form linear troughs on ...
A self-supporting bag having a trunk part and a bottom part, at least the trunk part having a trunk wall made of multilayered plastic film, the self-supporting bag comprising: an inner layer of a heat adherable plastic material being laminated with an outer layer of a different material to form the multilayered plastic film of the trunk wall; the trunk wall having convex and concave portions and having linear ribs formed in a surface thereof to stiffen the bag.