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1. 发明专利

JP2000257248A CUSHIONING MATERIAL FOR FLOOR 失效
公开(公告)号：JP2000257248A
公开(公告)日：2000-09-19
申请号：JP5887199
申请日：1999-03-05
申请人： ASAHI CHEMICAL IND , TSUBAKIMOTO MACH & ENG , YASUHARA CHEMICAL CO LTD
发明人： IWASAKI HIROBUMI , NAKAYAMA YOSHIMI , TSUJI YOSHIYUKI , MINEMATSU WASAKU
IPC分类号： E04F15/18 , B32B5/00
摘要： PROBLEM TO BE SOLVED: To improve waterproof property and moistureproof property by joining a reinforcing sheet obtained by forming an adhesive layer on a reinforcing material sheet to at least one surface of a sound absorbing material via the adhesive layer. SOLUTION: A cushioning material 1 for a floor is formed of a reinforcing sheet 5 composed of a sound absorbing material 2, an adhesive layer 3 and a reinforcing material sheet 4, and one surface of the sound absorbing material 2 is joined to the adhesive layer 3 of the reinforcing sheet 5. A synthetic resin film is interposed between the adhesive layer 3 of the reinforcing sheet 5 and a reinforcing material sheet 4 to form the cushioning material 1 for a floor, and a foaming body such as urethane foam and nonwoven fabric are used as the sound absorbing material. Next, after superposing the adhesive layer 3 of the reinforcing sheet 5 on one surface of the sound absorbing material 2, the adhesive layer is preheated in a hot air zone to be passed through clearance between a pair of rollers or clearance between heating rollers, heating/ pressurization is applied, and the cushioning material 1 is cooled and manufactured to thereby improve adhesive strength with a concrete slab surface.

2. 发明专利

JPH07292877A ROOF UNDER-COVERING MATERIAL AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH07292877A
公开(公告)日：1995-11-07
申请号：JP10760994
申请日：1994-04-22
申请人： NISSHIN KOGYO KK , TSUBAKIMOTO MACH & ENG
发明人： FURUICHI MITSUO , KANAZAWA HAJIME , TSUBAKIMOTO YASUMASA , TSUJI YOSHIYUKI
IPC分类号： E04D12/00 , B32B5/18 , B32B27/30
摘要： PURPOSE:To improve a nonslipping effect, and to maintain the effect by preventing formation of a water membrane particularly at the time of a rainfall by laying a microporous sheet having water repellency of 70 or more stipulated by JIS-L-92, consisting of a continuously foamed layer and mainly comprising an acrylic resin in a surface layer and forming the rear of the sheet in a waterproof layer. CONSTITUTION:The top face of the bearing sheet 2 of a needle-punched nonwoven fabric having the quantity of weight of 150g/m and being made of polyester long fibers is impregnated and coated uniformly with an acrylic-resin foaming liquid (an approximately 40% solid body) having a treble expansion ratio at the ratio of 90g/m and the foaming liquid is heated and cured, to be firmly stuck in the fibers of the nonwoven fabric, thus preparing a microporous sheet 1 consisting of the continuously foamed layer of an acrylic resin and having 0.5mm thickness. The diameters of the bubbles of the continuously foamed layer are kept within a range of 0.001-0.05mm. The water repellency (stipulated by JIS-L-1092) of the microporous sheet is set to 70 or more, and the sheet is used as a surface layer material. A rubber asphalt waterproof sheet 3, in which both surfaces of a core material are impregnated and coated with rubber asphalt, is laminated on the rear of the microporous sheet through a thermal fusion-bonding method. Accordingly, a roofing material having the whole thickness of 2.5mm and waterproof-ness is detained.

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