A manufacturing method of biodegradable material and biodegradable material

Title:

A manufacturing method of biodegradable material and biodegradable material

Document Type and Number:

Japanese Patent JP6191456

Kind Code:

B2

Abstract:

The present invention aims to provide a biodegradable material having an enhanced shape recovery rate after deformation of the material and an improved flexibility. The present invention provides a biodegradable material which is a chemically cross-linked product between a multivalent compound A having 3 or more functional groups X such as hydroxyl group; and a multivalent compound B having 3 or more functional groups Y such as carboxyl group wherein chemical cross-linkage(s) is/are formed by condensation reaction of the functional group(s) X and the functional group(s) Y; wherein the value of (y + z)/(x + z) is 1.2 to 4.0 when MA ¥ MB, and the value of (x + z)/(y + z) is 1.2 to 4.0 when MA < MB; wherein x represents the number of the functional group(s) X which is/are not condensed with the functional group(s) Y; y represents the number of the functional group(s) Y which is/are not condensed with the functional group(s) X; z represents the number of the cross-linkage(s); MA represents the weight average molecular weight of the multivalent compound A; and MB represents the weight average molecular weight of the multivalent compound B.

Inventors:

Fujita Masanori
Megumi Nakanishi
Kazuhiro Tanahashi

Application Number:

JP2013514464A

Publication Date:

September 06, 2017

Filing Date:

March 28, 2013

Export Citation:

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