The Paints by Enzymatic Reaction Using Laccol on Three-roll Mill

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  • ANDO Nobuyuki
    Kyoto Municipal Industrial Research Institute, Industrial Technology Center
  • OYABU Hiroshi
    Kyoto Municipal Industrial Research Institute, Industrial Technology Center
  • TSUJIMOTO Takashi
    Department of Materials Chemistry, Ryukoku University
  • UYAMA Hiroshi
    Department of Materials Chemistry, Graduate School of Engineering, Osaka University

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Other Title
  • 3本ロールミルによるラッコールを用いた酵素反応型塗料
  • 3ボン ロールミル ニ ヨル ラッコール オ モチイタ コウソ ハンノウガタ トリョウ

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Description

A water-in-oil type emulsion was prepared from laccol from Vietnam urushi (Rhus Succedala L.), a protein hydrolyzate, and laccase derived from Myceliophthora, by three-roll mill. We were able to make the paint by enzymatic reaction of urushi which had 80% nonvolatile content and good drying character. The obtained hardened film had high gloss and good physical properties that were characteristic of three-roll mill processing. <BR>The possibility of the usage not as alternative paints of urushi but as general-purpose paints was suggested. This paint is expected as environmentally-friendly paints from the viewpoints of not only the ordinary temperature hardening and organic solvent free but also resources crops and resources planting.

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