Title:
SURFACE TREATING AGENT FOR SEALING MATERIAL AND COATING METHOD FOR JOINT TREATMENT
Document Type and Number:
Japanese Patent JP3490014
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain the subject agent for joint treatment by preventing a plasticizer in a sealing material from migrating into the coating film of a finishing material to relieve an influence on expansion and contraction of the sealing material and to suppress crack generation, by containing an epoxy resin main ingredient and an aliphatic polyamine-based curing agent.
SOLUTION: This surface treating agent for sealing materials contains (B) an epoxy resin as a main ingredient containing 10-90 wt.% of (A) a dimeric acid-modified epoxy resin, and (C) an aliphatic polyamine-based curing agent having 100-200 active hydrogen equivalent, and its cured product is made to have 30-85% gel fraction and its coated film is made to have 100-500% extensibility, E.g. it is preferable that the ingredient A is based on a polymerized aliphatic acid which contains acids obtained by Diels Alder reaction of unsaturated fatty acids such as tall oil fatty acid having high linoleic acid and linolenic acid contents and the ingredient B is obtained by esterification reaction of the ingredient A with an epoxy resin such as a bisphenol-A-based epoxy resin, or the like.
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Inventors:
Yoshikazu Ishida
Application Number:
JP5642299A
Publication Date:
January 26, 2004
Filing Date:
March 04, 1999
Export Citation:
Assignee:
SK KAKEN Co., Ltd.
International Classes:
C09K3/10; C09D163/00; (IPC1-7): C09D163/00; C09K3/10
Domestic Patent References:
| JP5840371A | ||||
| JP762292A |
Other References:
新保正樹編，エポキシ樹脂ハンドブック，日刊工業新聞社，１９９３年９月１０日，初版第２刷，ｐ．１５７−１６０．