Title:
【発明の名称】ソフトセグメントを含んでいる電着用変性エポキシ樹脂
Document Type and Number:
Japanese Patent JP2829814
Kind Code:
B2
Abstract:
Diglycidyl ether epoxy resins are reacted with a prepolymer produced from an organic diisocyanate and a bifunctional active hydrogen compound having a soft segment whose terminal isocyanate groups have been blocked to chain-extend the epoxy resin with the prepolymer. The chain-extended epoxy resin is then reacted with a cationic active hydrogen compound alone or incombination with an aliphatic monoalcohol, alkylphenol, glycol monoether or bisphenol to open the terminal epoxy rings of the chain extended epoxy resin. The modified epoxy resin thus produced is dispersed in an aqueous medium containing a neutralizing agent together with a crosslinker to give a cathodic electrodeposition paint having improved impact strength and other properties.
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Inventors:
YAMADA MITSUO
ISHII TOSHUKI
ISHII TOSHUKI
Application Number:
JP13958993A
Publication Date:
December 02, 1998
Filing Date:
May 17, 1993
Export Citation:
Assignee:
NIPPON PEINTO KK
International Classes:
C08G18/00; C08G18/10; C08G18/58; C08G18/80; C08G59/02; C08G59/14; C08G59/28; C09D5/44; C09D163/00; C09D175/00; C09D175/04; (IPC1-7): C08G59/14; C08G18/10; C08G18/58
Domestic Patent References:
| JP4226172A | ||||
| JP1501069A |
Attorney, Agent or Firm:
Akaoka Mio