发明授权
US06221924B1 Biodegradable cellulose acetate foam and process for its production
失效
可生物降解的醋酸纤维素泡沫及其生产工艺
- 专利标题： Biodegradable cellulose acetate foam and process for its production
- 专利标题（中）： 可生物降解的醋酸纤维素泡沫及其生产工艺
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申请号： US09297265申请日： 1999-04-28
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公开(公告)号： US06221924B1公开(公告)日： 2001-04-24
- 发明人: Hiroyuki Mori , Makoto Yoshida , Michikage Matsui , Motoyasu Nakanishi
- 申请人： Hiroyuki Mori , Makoto Yoshida , Michikage Matsui , Motoyasu Nakanishi
- 优先权： JP9-240853 19970905; JP9-240856 19970905
- 主分类号： C08J900
- IPC分类号： C08J900
摘要：
A biodegradable cellulose acetate foam with a foam cell size of 0.001-0.8 mm and an apparent density of 0.01-0.27 g/cm3, and a biodegradable cellulose acetate foam wherein the foam is treated with a weak alkali solution, and has an acetylation degree of 45-60% and no acetic acid odor.