Title:
NODULAR SOLIDIFYING AGENT, ELASTIC PAVING AND FLOORING COMPOSITION, AND METHOD OF APPLICATION THEREOF
Document Type and Number:
Japanese Patent JP3673876
Kind Code:
B2
Abstract:
PURPOSE: To obtain a nodular solidifying agent used for elastic paving and flooring compositions, excellent in flexibility, curability and workability and reduced in odor by using as the constituent a polyurethane prepolymer containing a specified component.
CONSTITUTION: A nodular solidifying agent composed mainly of a urethane prepolymer made from polyol(s) and polyisocyanate compound(s) and having terminal isocyanato groups, wherein the polyisocyanate compound(s) contains 2,4'-diphenylmethane diisocyanate. The amount of 2,4'-diphenylmethane diisocyanate used is preferably at least 1wt.%. The urethane prepolymer is obtained by reacting 2,4'-diphenylmethane diisocyanate alone or a mixture thereof with other organic polyisocyanate compounds with a polyol alone or a mixture thereof with a low-molecular diol preferably at an equivalent ratio of NCO to OH of at least 1.5:1. The content of free isocyanato groups is preferably 3-30wt.%.
Inventors:
Ridge Bunsho
Norio Nishimura
Norio Nishimura
Application Number:
JP9356295A
Publication Date:
July 20, 2005
Filing Date:
April 19, 1995
Export Citation:
Assignee:
Dainippon Ink and Chemicals Co., Ltd.
International Classes:
E01C7/35; C08G18/10; C08G18/32; C08G18/48; C08G18/76; C08L75/00; C08L75/04; (IPC1-7): C08G18/76; C08G18/10; C08L75/04; E01C7/35
Domestic Patent References:
| JP2169615A | ||||
| JP61151225A |
Attorney, Agent or Firm:
Takahashi victory
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