Title:
揮発性第3級アミンを含有しない、アニオン系水性ポリマー分散系の調製方法、これによって得られる分散系および前記分散系由来のコーティング
Document Type and Number:
Japanese Patent JP4508511
Kind Code:
B2
Abstract:
The invention relates to a process for the preparation of an aqueous dispersion of an anionic polyurethane in which initially a tertiary aminofunctional acrylic monomer is used as neutralizing agent for pendant carboxylic acid groups in dispersions of a polyurethane or a polyurethane/polyacrylate, whereafter the unsaturated monomers undergo in situ an addition polymerisation, optionally together with other unsaturated monomer. In the process the isocyanate terminated prepolymer may be reacted with 0-100% of a stoichiometric amount of a hydroxy functional unsaturated monomer before the dispersion in water. The tertiary amine functional usaturated monomer is preset in a ratio to the anionic residues to be neutralized in the polyurethane prepolymer from 0.3 to 2 and preferably from 0.7 to 1.5. Furthermore the amount of carboxylic acid functions in the isocyanate functional polyurethane prepolymer is from 1 to 15% and preferably from 2 to 10%. The invention also relates to dispersions prepared by the present process and to a coating or film obtained from said dispersion.
Inventors:
Oger Chile Bella, Jose
Jimenez Martinez, Mario
Pusu Burutara, Montserrat
Jimenez Martinez, Mario
Pusu Burutara, Montserrat
Application Number:
JP2001530394A
Publication Date:
July 21, 2010
Filing Date:
October 16, 2000
Export Citation:
Assignee:
Stahl International Buffet
International Classes:
C08F290/06; C08F299/06; C08G18/00; C08G18/08; C08G18/10; C08G18/65; C08G18/67; C09D5/00; C09D133/14; C09D175/00; C09D175/04
Domestic Patent References:
| JP11116683A | ||||
| JP7271033A | ||||
| JP7507086A |
Attorney, Agent or Firm:
Yohei Harada
Yoshihiro Morimoto
Yoshihiro Morimoto