Title:
ヒートシール接着性フィルム及びそれを使用したカード状物品
Document Type and Number:
Japanese Patent JP3611743
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a heat-sealing adhesive film which prevents a thin card-like article, which is a seal molded product of the film, from warping or twisting, without deteriorating the heat-sealing adhesion property of a heat-sealing adhesive layer. SOLUTION: A heat-sealing adhesive film for preparing a card-like article comprises a film-like base material wherein a middle layer (MC layer) and an adhesive layer (HS layer) having a heat-sealing property are formed in this order. The MC layer contains a polyester(PES) having a glass transition temperature(Tg) of from 5 of 120 deg.C and a polyurethane(PU) having a Tg of from -40 to 50 deg.C as crosslinking polymers and a crosslinking agent. Here, the content of the crosslinking agent is at least 4 times as large as the functional group equivalent of the crosslinking polymer, and the weight ratio PES /PU is within the range of from 3/7 to 7/3. The HS layer contains a heat-sealing polymer.
Inventors:
Minoru Takizawa
Naomi Oguma
Hitoshi Naganuma
Naoki Tanimoto
Masayuki Takahashi
Michie Nakamura
Naomi Oguma
Hitoshi Naganuma
Naoki Tanimoto
Masayuki Takahashi
Michie Nakamura
Application Number:
JP17577699A
Publication Date:
January 19, 2005
Filing Date:
June 22, 1999
Export Citation:
Assignee:
Dainichi Seika Kogyo Co., Ltd.
International Classes:
B42D15/10; B32B27/00; B32B27/26; B32B27/36; B32B27/40; C08J5/12; C09J7/02; C09J167/00; C09J175/04; C09J177/00; C09J201/00; (IPC1-7): C09J7/02; B32B27/00; B32B27/26; B32B27/36; B32B27/40; B42D15/10; C08J5/12
Domestic Patent References:
| JP10306264A | ||||
| JP8283674A | ||||
| JP4113840A | ||||
| JP4248890A | ||||
| JP7062319A |
Attorney, Agent or Firm:
Katsuhiro Yoshida
Toshieko Kondo
Toshieko Kondo