Title:
SELECTIVELY BIODEGRADABLE POLYMER BLEND
Document Type and Number:
Japanese Patent JPS6413034
Kind Code:
A
Abstract:
PURPOSE: To obtain a polymer blend decomposable in a body by taking a time, comprising at least two biodegradable polymers derived from monomers selected from ε-caprolactone, DL- or L-lactic acid and glycolic acid and a medicine. CONSTITUTION: This blend comprises at least two biodegradable polymers derived from monomers selected from among ε-caprolactone, DL- or L-lactic acid and glycolic acid and having a structure of -(CH2 )5 COO-,-CH2 COO-,-(CH2 ) CHCOO-, etc., and a medicine (>=500 molecular weight). The blend is useful as surgical suture, transplanted piece, etc., having a degradation rate different from the individual polymer constituting the blend, biodegradable with taking a time, as a transient tissue useful in vivo. The release of the medicine is attained by permeation and decomposition of the polymer and complicated control of each monomer is not required.
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Inventors:
KORIN JII PITSUTO
Application Number:
JP5058288A
Publication Date:
January 17, 1989
Filing Date:
March 03, 1988
Export Citation:
Assignee:
RES TORAIANGURU INST
International Classes:
A61K9/00; A61K9/16; A61K9/50; A61K47/34; A61L17/00; A61L17/12; A61L27/26; A61L27/58; C08L67/04; (IPC1-7): A61K9/00; A61K47/00; A61L17/00
Attorney, Agent or Firm:
Takehiko Suzue (2 outside)
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