发明授权
US07645839B2 Binary mixtures of biodegradable aliphatic polyesters and products obtained from these
有权
可生物降解的脂肪族聚酯的二元混合物和从其获得的产品
- 专利标题： Binary mixtures of biodegradable aliphatic polyesters and products obtained from these
- 专利标题（中）： 可生物降解的脂肪族聚酯的二元混合物和从其获得的产品
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申请号： US10470098申请日： 2002-01-25
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公开(公告)号： US07645839B2公开(公告)日： 2010-01-12
- 发明人: Catia Bastioli , Gianfranco Del Tredici , Italo Guanella , Giovanni Floridi , Roberto Ponti
- 申请人： Catia Bastioli , Gianfranco Del Tredici , Italo Guanella , Giovanni Floridi , Roberto Ponti
- 申请人地址： IT Novara
- 专利权人： Novamont S.p.A.
- 当前专利权人： Novamont S.p.A.
- 当前专利权人地址： IT Novara
- 代理机构： Connolly Bove Lodge & Hutz LLP
- 优先权： ITTO2001A0062 20010125
- 国际申请： PCT/EP02/00760 WO 20020125
- 国际公布： WO02/059200 WO 20020801
- 主分类号： C08G63/00
- IPC分类号： C08G63/00
摘要：
A biodegradable mixture obtained by melt mixing polyesters comprising (A) an aliphatic polyester obtained from aliphatic diacids selected from the group consisting of azelaic acid, sebacic acid, brassilic acid, mixtures thereof and mixtures of said acids with aliphatic dicarbossilic acids and/or aliphatic hydroxyacids containing more than 50 mole % of azelaic acid, sebacic acid and brassilic acid, and from aliphatic diols; (B) a polymer of lactic acid in which the concentration by weight of A with respect to (A+B) is in the range of 30 to 60% and in which the sum of the fusion entalpy ΔHA and ΔHB of the two polyesters in the mixture is greater than the sum of the fusion entalpies ΔH1 and ΔH2 of the polyesters prior to melt mixing.
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