公开(公告)号：US20220267585A1

公开(公告)日：2022-08-25

申请号：US17637634

申请日：2020-08-21

申请人： TRINSEO EUROPE GMBH

发明人： Claude T.E. Van Nuffel ,  Gilbert Bouquet ,  Maurice Laurijs

IPC分类号： C08L55/02 ,  B29B9/06 ,  B29C45/00

摘要： A composition comprising: one or more polycarbonates; one or more vinylidene aromatic substituted polymers; and a buffer system that controls the pH in water at 25° C. at a value of about 6.0 to about 8.0. The composition may comprise the buffer system that has a pKa between about 4 and about 10. The composition may comprise: from about 10 or 50 to about 95 percent by weight of the one or more polycarbonates; from about 0.5 or about 10 to about 50 or about 90 percent by weight of the one or more vinylidene aromatic substituted monomers; and from about 0.005 percent to about 0.050 percent by weight of the buffer system; wherein weight is based on the total weight of the composition. The buffer system may be present in an amount from about 0.010 percent to about 0.040 percent by weight.

公开(公告)号：US11781007B2

公开(公告)日：2023-10-10

申请号：US17637634

申请日：2020-08-21

申请人： TRINSEO EUROPE GMBH

发明人： Claude T. E. Van Nuffel ,  Gilbert Bouquet ,  Maurice Laurijs

IPC分类号： C08L55/02 ,  B29B9/06 ,  B29C45/00 ,  C08K3/014 ,  C08K3/32 ,  C08K5/00 ,  B29K55/02 ,  B29K69/00 ,  B29K105/00

CPC分类号： C08L55/02 ,  B29B9/06 ,  B29C45/0001 ,  B29K2055/02 ,  B29K2069/00 ,  B29K2105/0005 ,  C08L2203/30

摘要： A composition comprising: one or more polycarbonates; one or more vinylidene aromatic substituted polymers; and a buffer system that controls the pH in water at 25° C. at a value of about 6.0 to about 8.0. The composition may comprise the buffer system that has a pKa between about 4 and about 10. The composition may comprise: from about 10 or 50 to about 95 percent by weight of the one or more polycarbonates; from about 0.5 or about 10 to about 50 or about 90 percent by weight of the one or more vinylidene aromatic substituted monomers; and from about 0.005 percent to about 0.050 percent by weight of the buffer system; wherein weight is based on the total weight of the composition. The buffer system may be present in an amount from about 0.010 percent to about 0.040 percent by weight.