Title:
VINYLPYRROLIDONE COPOLYMER AND PROCESS FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2006/115116
Kind Code:
A1
Abstract:
A vinylpyrrolidone copolymer which comprises units derived from N-vinylpyrrolidone and a hydroxylated (meth)acrylate, such as 2-hydroxyethyl (meth)acrylate, as essential components and which gives a crosslinked coating film satisfactory in surface smoothness, evenness, and water resistance; and a process for easily producing the copolymer. The vinylpyrrolidone copolymer comprises structural units (A) derived from N-vinylpyrrolidone and structural units (B) derived from a hydroxylated (meth)acrylate, the proportions of the units (A) and the units (B) being 50-95 mass% and 50-5 mass%, respectively, based on the sum of both. The copolymer has a K value as determined by the Fikentscher method of 12 or higher and a water-insoluble content of 0.5 mass% or lower (on a solid basis).
Inventors:
IMAI DAISUKE (JP)
IZUMI KEIKO (JP)
NAKATA YOSHITOMO (JP)
IZUMI KEIKO (JP)
NAKATA YOSHITOMO (JP)
Application Number:
PCT/JP2006/308114
Publication Date:
November 02, 2006
Filing Date:
April 18, 2006
Export Citation:
Assignee:
NIPPON CATALYTIC CHEM IND (JP)
IMAI DAISUKE (JP)
IZUMI KEIKO (JP)
NAKATA YOSHITOMO (JP)
IMAI DAISUKE (JP)
IZUMI KEIKO (JP)
NAKATA YOSHITOMO (JP)
International Classes:
C08F226/10; C08F220/26
Foreign References:
| JPS63156810A | 1988-06-29 | |||
| JPH1171414A | 1999-03-16 | |||
| JP2001131233A | 2001-05-15 | |||
| JPH08510278A | 1996-10-29 |
Attorney, Agent or Firm:
Yasutomi, Yasuo (4-20 Nishinakajima 5-chome, Yodogawa-k, Osaka-shi Osaka 11, JP)
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