Title:
【発明の名称】変性セルロ-ス誘導体
Document Type and Number:
Japanese Patent JP2510960
Kind Code:
B2
Abstract:
PURPOSE:To provide the title derivative which can produce a tough film excellent in adhesion and weather resistance, and is useful as a silicon acrylic synthetic resin modifier, by opening the ring of epsilon-caprolactone to be polymerized to OH-groups remaining in a cellulose derivative, and then introducing silyl groups thereto. CONSTITUTION:epsilon-Caprolactone (B) is reacted with a cellulose derivative (A) such as nitrocellulose and cellulose acetate butyrate, in a ratio of 1-10 equivalents of the component (B) per equivalent of the OH-groups of the component (A), in the presence of an esterification catalyst such as tetrabutyl zirconate at about 100 deg.C for 5-15hr to open the ring of the component (B) to be polymerized to the OH-groups remaining in the component (A) thereby grafting the polymer chain of the component (B). Then, the resulting compound is reacted with a silyl-group-containing compound (C) of the formula (wherein R1-2 are each a divalent hydrocarbon group, for example, a 1-10C alkyl, aryl and aralkyl; X is a hydrolyzable group; Y is a group reactable with an OH-group; and n is 1-3), so that the silyl groups are introduced to the end of the polymer chain of the component (B) of the above derivative, thereby producing the title compound.
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Inventors:
YAMAKADO NAGAHIKO
KAWAKAMI SUSUMU
HATA HIRONORI
KAWAKAMI SUSUMU
HATA HIRONORI
Application Number:
JP5370987A
Publication Date:
June 26, 1996
Filing Date:
March 09, 1987
Export Citation:
Assignee:
NATOCO PAINT KK
International Classes:
C08B3/14; C09D7/12; (IPC1-7): C08B3/14
Attorney, Agent or Firm:
Tadao Usami