Title:
PROCESS FOR PRODUCING POWDERED THERMOPLASTIC POLYURETHANE UREA RESIN
Document Type and Number:
WIPO Patent Application WO/2007/029382
Kind Code:
A1
Abstract:
It is intended to provide a process for producing a powdered thermoplastic polyurethane urea resin comprising the steps of forming a prepolymer with an isocyanate group at an end by reacting a polymer polyol (a), an organic polyisocyanate (b), a monofunctional active hydrogen group-containing compound (c) and preferably further a bifunctional active hydrogen group-containing compound (d) at a specific ratio and forming a polyurethane urea resin by carrying out a chain extension reaction of the prepolymer with an isocyanate group at an end and water (e) in a non-aqueous dispersion solvent. According to this production process, the powdered thermoplastic polyurethane urea resin excellent in melt moldability can be obtained and the control of the molecular weight of the polyurethane urea resin is easy.
Inventors:
HAYASHI, Masahiro (440, Akiba-cho, Totsuka-ku, Yokohama-sh, Kanagawa 52, 2450052, JP)
林 政浩 (〒52 神奈川県横浜市戸塚区秋葉町４４０番地 日本ポリウレタン工業株式会社内 Kanagawa, 2450052, JP)
KITA, Motomu (440, Akiba-cho, Totsuka-ku, Yokohama-sh, Kanagawa 52, 2450052, JP)
喜多 求 (〒52 神奈川県横浜市戸塚区秋葉町４４０番地 日本ポリウレタン工業株式会社内 Kanagawa, 2450052, JP)
林 政浩 (〒52 神奈川県横浜市戸塚区秋葉町４４０番地 日本ポリウレタン工業株式会社内 Kanagawa, 2450052, JP)
KITA, Motomu (440, Akiba-cho, Totsuka-ku, Yokohama-sh, Kanagawa 52, 2450052, JP)
喜多 求 (〒52 神奈川県横浜市戸塚区秋葉町４４０番地 日本ポリウレタン工業株式会社内 Kanagawa, 2450052, JP)
Application Number:
JP2006/310797
Publication Date:
March 15, 2007
Filing Date:
May 30, 2006
Export Citation:
Assignee:
NIPPON POLYURETHANE INDUSTRY CO., LTD. (1-23, Shiba 4-Chome Minato-k, Tokyo 14, 1080014, JP)
日本ポリウレタン工業株式会社 (〒14 東京都港区芝四丁目１番２３号 Tokyo, 1080014, JP)
HAYASHI, Masahiro (440, Akiba-cho, Totsuka-ku, Yokohama-sh, Kanagawa 52, 2450052, JP)
林 政浩 (〒52 神奈川県横浜市戸塚区秋葉町４４０番地 日本ポリウレタン工業株式会社内 Kanagawa, 2450052, JP)
KITA, Motomu (440, Akiba-cho, Totsuka-ku, Yokohama-sh, Kanagawa 52, 2450052, JP)
日本ポリウレタン工業株式会社 (〒14 東京都港区芝四丁目１番２３号 Tokyo, 1080014, JP)
HAYASHI, Masahiro (440, Akiba-cho, Totsuka-ku, Yokohama-sh, Kanagawa 52, 2450052, JP)
林 政浩 (〒52 神奈川県横浜市戸塚区秋葉町４４０番地 日本ポリウレタン工業株式会社内 Kanagawa, 2450052, JP)
KITA, Motomu (440, Akiba-cho, Totsuka-ku, Yokohama-sh, Kanagawa 52, 2450052, JP)
International Classes:
C08G18/65; B29C41/18; C08G18/10
Attorney, Agent or Firm:
AICHI, Hiroshi (Nishimura Building, 10-19 Kanda Ogawa-machi 3-Chome, Chiyoda-k, Tokyo 52, 1010052, JP)