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Process for preparing foamed, bioabsorbable polymer particles

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C08G-063/08    A61K-031/74    A61K-009/14    A01N-025/02   
미국특허분류(USC) 528/354 ; 424/43 ; 424/783 ; 424/486
출원번호 US-0503264 (1990-04-02)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 64  인용 특허 : 0
초록

A process is provided for preparing foamed, bioabsorbable polymer particles employing a freeze-drying operation.

대표
청구항
▼

Process for preparing foamed, bioabsorbable polymer particles which comprises: a) dissolving a foam-forming bioabsorbable polymer in a solvent therefor to form a solution of the polymer; b) introducing relatively small, discrete quantities of the thus-formed polymer solution into a liquid which is immiscible with the solvent and which freezes the polymer solution on contact therewith to provide particles of frozen polymer solution in the liquid; c) recovering the particles of frozen polymer solution from the liquid; and, d) removing solvent from the part...

이 특허를 인용한 특허 피인용횟수: 64

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