Title:
水系ポリウレタン組成物及びこの床下地コンクリートへの施工方法
Document Type and Number:
Japanese Patent JP6647916
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an aqueous polyurethane composition which has impact resistance, shows extremely lower shrinkage stress occurring in a coating film than before, and therefore prevents an end portion of the coating film from peeling off from substrate concrete and prevents cracks from occurring on the coating film surface, and shows excellent color tone stability of the coating film, and to provide a method of applying the composition on the floor substrate.SOLUTION: A mortar like aqueous polyurethane composition which comprises a polyol, a polyisocyanate, a diluent, cement, filler, and water. The polyol comprises a castor oil-modified tri-functional polyol, a tetra-functional polyol having a bisphenol A skeleton, and a di-functional polyether polyol having a bisphenol A skeleton. The diluent contains a benzoic acid ester, and the diluent has a content of 7 to 25 parts by weight based on 100 parts by weight of a resin part comprising a polyol, a polyisocyanate, a diluent, and water. Also provided is a method for applying the aqueous polyurethane composition on floor substrate concrete.SELECTED DRAWING: None
Inventors:
Koichi Suzuki
Kota Kashimura
Chihiro Masahiro
Hiroshi Kubota
Megumi Wakayama
Toshihiko Kage
Takai Ken
Kota Kashimura
Chihiro Masahiro
Hiroshi Kubota
Megumi Wakayama
Toshihiko Kage
Takai Ken
Application Number:
JP2016039311A
Publication Date:
February 14, 2020
Filing Date:
March 01, 2016
Export Citation:
Assignee:
Aica Kogyo Co., Ltd.
Taisei Corporation
Taisei Corporation
International Classes:
C08G18/08; C04B24/28; C04B28/02; C08G18/00; C08G18/40; C08G18/42; C08G18/48; C08G18/64; C08K3/00; C08L75/04; C09D1/08; C09D7/63; C09D175/08; E04F15/12
Domestic Patent References:
| JP201617024A |
Attorney, Agent or Firm:
Masahiro Uchida