公开(公告)号：US20070117908A1

公开(公告)日：2007-05-24

申请号：US11589940

申请日：2006-10-31

申请人： Qinghai Zhou ,  Xiaojiang Zhao ,  Xianhong Wang ,  Fosong Wang ,  Tao Xiong ,  Fengxiang Gao

发明人： Qinghai Zhou ,  Xiaojiang Zhao ,  Xianhong Wang ,  Fosong Wang ,  Tao Xiong ,  Fengxiang Gao

IPC分类号： C08K5/09 ,  B60C1/00

CPC分类号： C08L69/00 ,  C08K3/36 ,  C08K5/092 ,  C08L67/02 ,  C08L2666/18

摘要： The present invention relates to improvement of the brittleness and cold flowability of a carbon dioxide-propylene oxide copolymer (PPC). The invention provides a blend comprising 50 to 98 parts by weight of a PPC; 2 to 50 parts by weight of a poly(butylenes succinate) (PBS) or poly(butylene succinate/adipate) (PBSA); 1 part by weight of a maleic anhydride, and 0.5 to 3.0 parts by weight of SiO2 and a method for producing the same. Compared with the pure PPC, the elongation rate at break of the blend of the invention increases by 3 to 15 times while the tensile strength maintains at 30 MPa or more. The blend of the PPC and PBSA can keep its dimension stably at 70° C., while the blend of the PPC and PBSA can keep its dimension stably at 55° C. No viscous flow occurs at these temperatures.

摘要翻译： 本发明涉及改善二氧化碳 - 环氧丙烷共聚物（PPC）的脆性和冷流动性。 本发明提供了包含50至98重量份的PPC的共混物; 2重量份到50重量份的聚琥珀酸丁酯（PBS）或聚（丁二酸丁二酸酯/己二酸酯）（PBSA）; 1重量份的马来酸酐和0.5-3.0重量份的SiO 2和它们的制备方法。 与纯PPC相比，本发明共混物的断裂伸长率提高3〜15倍，拉伸强度保持在30MPa以上。 PPC和PBSA的共混物可以将其尺寸稳定地保持在70℃，而PPC和PBSA的共混物可以将其尺寸稳定地保持在55℃。在这些温度下不发生粘稠的流动。

公开(公告)号：US20070117936A1

公开(公告)日：2007-05-24

申请号：US11589939

申请日：2006-10-31

申请人： Tao Xiong ,  Xiaojiang Zhao ,  Xianhong Wang ,  Fosong Wang ,  Jiadong Min ,  Qinghai Zhou ,  Lijun Qiao

发明人： Tao Xiong ,  Xiaojiang Zhao ,  Xianhong Wang ,  Fosong Wang ,  Jiadong Min ,  Qinghai Zhou ,  Lijun Qiao

IPC分类号： C08F26/06

CPC分类号： C08F220/14 ,  C08F222/06 ,  C08F283/06 ,  C08G64/0216

摘要： The invention relates to a polymeric end-capping reagent for carbon dioxide-epoxide copolymers and a method for producing the same. The polymeric end-capping reagents provided by the invention are maleic anhydride copolymers and maleic anhydride terpolymers. The polymeric end-capping reagent for carbon dioxide-propylene oxide copolymers of the invention is produced by a radical solution copolymerization method, and has a number average molecular weight of Mn=4-6×104, a distribution index of 1.5-3.0. By using the polymeric end-capping reagent provided by the invention, the disadvantages of the small molecular end-capping reagent like volatilization during melting and precipitation on the melt surface during cooling, can be effectively overcome, moreover, the initial thermal decomposition temperatures of the carbon dioxide-propylene oxide copolymers end-capped with the polymeric end-capping reagents increase by about 30° C., as compared with that of the carbon dioxide-propylene oxide copolymer end-capped with “small molecular” maleic anhydride.

摘要翻译： 本发明涉及二氧化碳 - 环氧化物共聚物的聚合物封端剂及其制备方法。 本发明提供的聚合物封端剂是马来酸酐共聚物和马来酸酐三元共聚物。 本发明的二氧化碳 - 环氧丙烷共聚物的聚合物封端剂是通过自由基溶液共聚法制备的，其数均分子量为M n = 4-6×x10 4 ，分布指数为1.5-3.0。 通过使用本发明提供的聚合物封端剂，可以有效地克服小分子封端剂在冷却期间在熔融表面熔化和沉淀期间的挥发的缺点，此外， 与用“小分子”马来酸酐封端的二氧化碳 - 环氧丙烷共聚物相比，用聚合物封端剂封端的二氧化碳 - 环氧丙烷共聚物增加约30℃。

公开(公告)号：US20110311794A1

公开(公告)日：2011-12-22

申请号：US12994070

申请日：2009-06-19

申请人： Qinghai Zhou ,  Xianhong Wang ,  Fengxiang Gao ,  Xiaojiang Zhao ,  Fosong Wang ,  Songbao Fu ,  Keyu Chen ,  Liangliang Wang ,  Buning Chen ,  Jianbo Xu ,  Guozhong Wang

发明人： Qinghai Zhou ,  Xianhong Wang ,  Fengxiang Gao ,  Xiaojiang Zhao ,  Fosong Wang ,  Songbao Fu ,  Keyu Chen ,  Liangliang Wang ,  Buning Chen ,  Jianbo Xu ,  Guozhong Wang

IPC分类号： B32B7/02 ,  B32B27/36

CPC分类号： B65D65/466 ,  B32B27/08 ,  B32B27/20 ,  B32B27/36 ,  B32B27/365 ,  B32B2250/03 ,  B32B2250/05 ,  B32B2250/244 ,  B32B2250/40 ,  B32B2264/104 ,  B32B2307/7163 ,  B32B2307/7244 ,  B32B2439/00 ,  B32B2439/70 ,  B32B2439/80 ,  Y02W90/12 ,  Y02W90/13 ,  Y10T428/24975 ,  Y10T428/31507

摘要： The present invention discloses a biodegradable complex oxygen barrier film and its preparation method and application. The biodegradable complex oxygen barrier film disclosed by the present invention is constituted of at least two support layers and a barrier layer which is deposed between each two support layers. The support layer is selected from at least one of the following substances: polylactic acid, poly(butylene succinate), polycaprolactone, poly(adipate-butylene telephthalate), poly(β-hydroxybutyrate) and poly(β-hydroxybutyrate-valerate); the barrier layer which is deposed between the each two support layers is same or different, the barrier layer is selected from any one of the following: poly(propylene carbonate) and nano montmorillonite modified poly(propylene carbonate). The biodegradable complex oxygen barrier film of the present invention may be used as packing articles of food or medicine, helpful to prolong the guarantee period and shelf life of the foods and medicines; at the same time, white pollution could be prevented.

摘要翻译： 本发明公开了一种生物降解复合氧阻隔膜及其制备方法和应用。 本发明公开的可生物降解的复氧隔离膜由至少两个支撑层和在两个支撑层之间被放置的阻挡层构成。 载体层选自以下物质中的至少一种：聚乳酸，聚（丁二酸丁二醇酯），聚己酸内酯，聚（己二酸丁酯，邻苯二甲酸乙二醇酯），聚（β-羟基丁酸酯）和聚（对 - 羟基丁酸酯 - 戊酸酯） ; 在两个支撑层之间设置的阻挡层相同或不同，阻挡层选自以下任何一种：聚（碳酸亚丙酯）和纳米蒙脱石改性聚（碳酸亚丙酯）。 本发明的生物降解复合氧阻隔膜可以用作食品或药品的包装物，有助于延长食品和药品的保质期和保质期; 同时可以防止白污染。