公开(公告)号：US4363853A

公开(公告)日：1982-12-14

申请号：US242226

申请日：1981-03-10

申请人： Kazuyoshi Imamura ,  Norio Akimoto ,  Shozo Awaya

发明人： Kazuyoshi Imamura ,  Norio Akimoto ,  Shozo Awaya

IPC分类号： C08G63/00 ,  C08G63/12 ,  C08G63/181 ,  C08G63/46 ,  C09D167/02 ,  C09J167/00 ,  C09J167/02 ,  B32B27/36 ,  C08G63/16

CPC分类号： C08G63/181 ,  C09D167/02 ,  C09J167/02 ,  Y10T428/2826 ,  Y10T428/2852 ,  Y10T428/2891 ,  Y10T428/31504 ,  Y10T428/31616 ,  Y10T428/31681 ,  Y10T428/31786 ,  Y10T428/4935

摘要： A polyester comprising acid monomer units of terephthalic acid, succinic acid, glutaric acid and isophthalic acid and/or an aliphatic dicarboxylic acid having 6 to 20 carbon atoms and glycol monomer units of a C.sub.2-10 alkylene glycol in specific proportions has been found to be extremely useful as hot-melt materials such as a hot-melt adhesive, a hot-melt coating material, a hot-melt sealing material and a hot-melt filling material. The present hot-melt polyester has excellent melting characteristics, that is, it can be rapidly molten from a solid state with a high sensitivity to heating to give a molten polyester having a stably low viscosity that does not almost undergo change according to variation of temperature and having an excellent fluidity. Further, the present hot-melt polyester has a good affinity for objects (e.g. adherend) to which the polyester is applied and exhibits excellent bonding or adhesive performance. Moreover, the present hot-melt polyester has improved suppleness and flexibility. The mechanical strength, stretchability and flexibility of the hot-melt adhesive can be much improved while maintaining the melt viscosity thereof at a low level. Thus, there is provided a hot-melt polyester having a well-balanced combination of physical properties that is very important to hot-melt materials.

摘要翻译： 已经发现包含对苯二甲酸，琥珀酸，戊二酸和间苯二甲酸的酸单体单元和/或具有6至20个碳原子的脂族二羧酸和具有特定比例的C 2-10亚烷基二醇的二醇单体单元的聚酯是 作为热熔性材料如热熔粘合剂，热熔涂层材料，热熔密封材料和热熔填充材料非常有用。 本发明的热熔性聚酯具有优异的熔融特性，即可以从固体状态迅速熔融，对加热具有高灵敏度，得到具有稳定的低粘度的熔融聚酯，其根据温度变化几乎不发生变化 并具有优异的流动性。 此外，本发明的热熔聚酯与涂布聚酯的物体（例如被粘附物）具有良好的亲合性，并且表现出优异的粘结或粘合性能。 此外，本发明的热熔聚酯具有改善的柔软性和柔软性。 在将熔融粘度保持在较低水平的同时，可以大大提高热熔粘合剂的机械强度，伸缩性和柔软性。 因此，提供了一种热熔聚酯，其具有对热熔材料非常重要的物理性能的良好平衡的组合。

公开(公告)号：US3936394A

公开(公告)日：1976-02-03

申请号：US349464

申请日：1973-04-09

申请人： Tetsuhiro Kusunose ,  Tatsuo Ishikawa ,  Norio Akimoto ,  Noboru Fukuma ,  Kazuyoshi Imamura

发明人： Tetsuhiro Kusunose ,  Tatsuo Ishikawa ,  Norio Akimoto ,  Noboru Fukuma ,  Kazuyoshi Imamura

IPC分类号： B01J20/22 ,  B01J31/02

CPC分类号： B01J20/26

摘要： The present invention is to provide a method of producing an adsorbent composed of micro-fibrils, comprising the steps of mixing two synthetic polymers in a mixing ratio of 20/80 - 80/20, both of said polymers being incompatible with each other when they are intimately mixed, subjecting the mixture in molten state to an extrusion molding to shape the article in the form of threads, ropes or films where at least one of the polymers assumes the forms of micro-fibrils, and thereafter treating the shaped article with a solvent which is incapable of dissolving or decomposing one polymer but capable of dissolving or decomposing the other constituent polymer.The polymer adsorbent obtained by the above method is characterized by superior adsorbing activity and high treating efficiency and can be used for a wide range of purpose of adsorption.

摘要翻译： 本发明提供一种生产由微原纤维组成的吸附剂的方法，包括以20/80-80/20的混合比混合两种合成聚合物的步骤，当这些聚合物彼此不相容时 紧密混合，使熔融状态的混合物经受挤出成型，以使纱线，绳索或薄膜的形状成型，其中至少一种聚合物呈微纤维形式，然后用 溶剂，其不能溶解或分解一种聚合物，但能够溶解或分解另一种构成聚合物。