公开(公告)号：US5491197A

公开(公告)日：1996-02-13

申请号：US414596

申请日：1995-03-31

申请人： Sergio Custro ,  Gian I. Viola

发明人： Sergio Custro ,  Gian I. Viola

IPC分类号： C08C19/02 ,  C08C19/06 ,  C08F8/04 ,  C08F8/08 ,  C08F297/04 ,  C08G59/34

CPC分类号： C08F8/08 ,  C08F2800/20

摘要： A description follows of epoxydated block copolymers, either linear or branched, which can be defined with the following formulae:1) [A--(E--B--EPOX)].sub.n X2) A.sub.1 --(E.sub.1 --B.sub.1 --EPOX.sub.1)--A--HT--(E.sub.2 --B.sub.2 --EPOX.sub.2)3) [(E.sub.1 --B.sub.1 --EPOX.sub.1)--HT--A(E.sub.2 --B.sub.2 --EPOX.sub.2)].sub.x Xwhere A is a polyvinylaromatic block in a percentage ranging from 10 to 50% by weight, E--B--EPOX is a block composed of ethylene units, epoxydated butene and diene units in which the percentage by weight of the epoxy group ranges from 1% to 40%, HT is a tapered copolymer segment made up of hydrogenated and epoxydated diene monomeric units and vinylaromatic units whose content ranges from 0 to 20%, x is a radical having a valence ranging from 1 to 20.The block copolymers have an average molecular weight ranging from 30,000 to 400,000, a content of polyvinylaromatic blocks of between 10 and 50% by weight and a content of (E.sub.1 --B.sub.1 --EPOX.sub.1)+(E.sub.2 --B.sub.2 --EPOX.sub.2) blocks ranging from 90 to 50% by weight; the weight ratio between (E.sub.1 --B.sub.1 --EPOX.sub.1) and (E.sub.2 --B.sub.2 --EPOX.sub.2) ranges from 0.1 to 1.0. These polymers are used in the preparation of polymeric compositions based on engineering polymers such as polyamides, polycarbonate, polyesters, improving their physical properties and above all their impact strength and in mixtures with oils and hydrocarbon resins to produce materials having excellent adhesion of polar substrates.

摘要翻译： 下面描述可以由下式定义的直链或支链的环氧化嵌段共聚物：1）[A-（EB-EPOX）] nX 2）A1-（E1-B1-EPOX1）-A-HT- （E2-B2-EPOX2）3）[（E1-B1-EPOX1）-HT-A（E2-B2-EPOX2）] xX其中A是10至50重量％的百分比的聚乙烯基芳族嵌段，EB- EPOX是由乙烯单元，环氧化丁烯和二烯单元组成的嵌段，其中环氧基的重量百分比为1％至40％，HT是由氢化和环氧化二烯单体单元和乙烯基芳族单元组成的渐缩共聚物链段 其含量为0至20％，x为1至20的化合价。嵌段共聚物的平均分子量为30,000至400,000，聚乙烯基芳族嵌段的含量为10至50重量％，和 （E1-B1-EPOX1）+（E2-B2-EPOX2）嵌段的含量为90〜50重量％ （E1-B1-EPOX1）与（E2-B2-EPOX2）之间的重量比为0.1〜1.0。 这些聚合物用于制备基于聚酰胺，聚碳酸酯，聚酯等工程聚合物的聚合物组合物，改善其物理性能，最重要的是它们的冲击强度，以及与油和烃树脂的混合物，以制备具有优异极性粘合性的材料。