Title:
METHOD FOR WATER-CURING CEMENT MIXED WITH POLYMER EMULSION BY USING REACTIVE SURFACTANT
Document Type and Number:
Japanese Patent JP3124625
Kind Code:
B2
Abstract:
PURPOSE: To improve adhesion property, water proofing property, chemical- resistant protecting property and high strength property by adding a dewatering agent selected from melamine-base compd. to a specified emulsion to prepare a compounded material, then water-curing.
CONSTITUTION: A monomer mixture (A) is prepared by compounding 20-99.5wt.% of styrene or methylmethacrylate monomer, <80wt.% of alkylacrylate monomer, 0.3-6wt.% of ethylenic unsatd. carboxylic acid, and 0.2-5wt.% of silane-contg. vinyl, silane-contg. methacryl or silane-contg. acryl monomers. To this component (A), 4wt.% of reactive surfactant, water in the necessary amt., and polymn. initiator are mixed to effect emulsion polymn. The obtd. polymer emulsion (B) has -30 to 100°C glass transition temp. Then a dewatering agent selected from melamine-base compd. is added by 1-10wt.% to the component (B) to obtain a compounded material. The compounded material is mixed by 3-5wt.% in concrete or the like, and this cement mixed with the polymer emulsion is water-cured at ≤50°C.
Inventors:
Tokumoto Minoru
Akifumi Katsushima
Akifumi Katsushima
Application Number:
JP16368692A
Publication Date:
January 15, 2001
Filing Date:
May 29, 1992
Export Citation:
Assignee:
Japan NSC Co., Ltd.
International Classes:
C04B28/02; C04B24/42; C04B40/00; C08F212/08; C08F220/14; C04B103/30; C04B103/40; (IPC1-7): C04B28/02; C04B24/42; C04B40/00; C08F212/08; C08F220/14
Domestic Patent References:
| JP61136951A | ||||
| JP59184754A | ||||
| JP397644A | ||||
| JP5763316A | ||||
| JP321610A | ||||
| JP63274443A | ||||
| JP565316A |
Attorney, Agent or Firm:
Eiichi Adachi