Title:
【発明の名称】コンクリート型枠用パネル
Document Type and Number:
Japanese Patent JP2950779
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To be free of peeling from a wood substrate, to be excellent in peeling from concrete, and to enable repeated use by sticking a film like member made of polypropylene resin to a plate through a hotmelt adhesive composed of a specified quantity of an α-olefin copolymer and a tackifier. SOLUTION: A concrete form is formed by sticking a polypropylene film on a wood substrate. Since the sticking of concrete is reduced by using the polypropylene film, the use of a peeling agent is eliminated, a beautiful concrete surface is obtained, and the generation of harmful gas is prevented when discarded. A hotmelt adhesive composed of 70-95wt.% of an α-olefin copolymer and 5-30wt.% of a tackifier is used as the adhesive. When the content of the copolymer is less than 70wt.%, adhesion is strengthened by the increase of the tackifier to cause difficult handling, while when the content exceeds 95wt.%, adhesion to the plate is deteriorated.
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Inventors:
INOE AKIHISA
NAKANO MASASHI
ISHIBASHI KYOSUKE
NAKANO MASASHI
ISHIBASHI KYOSUKE
Application Number:
JP20570996A
Publication Date:
September 20, 1999
Filing Date:
August 05, 1996
Export Citation:
Assignee:
KURASHIKI BOSEKI KK
ISAWA SOKEN KK
ISAWA SOKEN KK
International Classes:
E04G9/05; B32B21/08; B32B27/00; B32B27/32; C09J7/02; C09J123/00; C09J157/02; (IPC1-7): B32B21/08; E04G9/05
Domestic Patent References:
| JP6155415A |
Attorney, Agent or Firm:
Aoyama Ryo (1 person outside)