发明名称 |
HYDROPHOBIC SUBSTRATE CAPABLE OF LIBERATING A CHEMICAL COMPOUND, PROCESS FOR ITS PREPARATION AND ITS APPLICATION AS AN INTRA-UTERINE DEVICE |
摘要 |
<p>Hydrophobic substrate which can release at least one chemical substance, wherein it comprises a hydrophobic polymer matrix in which are homogeneously distributed inclusions of polymerized compounds of a different type to the said hydrophobic polymer and inclusions of the said substance, the polymerized compound inclusions forming in the said matrix a stable and continuous system in contact with the inclusions of the said substance. Process for the preparation of a hydrophobic substrate able to release a chemical substance, wherein it comprises forming inclusions of polymerized compounds in a hydrophobic polymer powder by grafting onto the latter a monomer of a different type to the said hydrophobic polymer, homogeneously mixing the grafted powder obtained in this way with a powder of the said substance and bringing the mixture into the form of a substrate by hot shaping it.</p> |
申请公布号 |
EP0009423(B1) |
申请公布日期 |
1982.05.05 |
申请号 |
EP19790400565 |
申请日期 |
1979.08.10 |
申请人 |
COMMISSARIAT A L'ENERGIE ATOMIQUE ETABLISSEMENT DE CARACTERE SCIENTIFIQUE TECHNIQUE ET INDUSTRIEL |
发明人 |
BERTHET, JEANNE;GAUSSENS, GILBERT |
分类号 |
C08F291/00;A61F6/14;A61J3/00;A61K9/00;A61K9/22;A61M31/00;C08J7/18;C08K13/00;C08L101/00;C08L101/02;(IPC1-7):61K9/02;08J7/18;61M31/00;61F5/47 |
主分类号 |
C08F291/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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