摘要:
A polycarbonate blend composition with a good balance of high impact resistance, moldability, and controllable gloss with reduced tendencies of pearlescence or delamination in molded articles is prepared by admixing with polycarbonate a substantially linear ethylene polymer, e.g. LLDPE, an olefinic epoxide-containing copolymer, like an ethylene-glycidyl methacrylate copolymer, and a polyester.
摘要:
Polymères solides dont la partie en surface a été modifiée par une réaction avec des réactifs produisant des ions ou des radicaux libres thiocyano ou isothiocyano. Est également décrit un procédé de préparation de ces polymères modifiés. Ces polymères augmentent les forces d'adhésion des stratifiés les contenant, améliorent l'adhérence des peintures, augmentent la viscosité et la perméabilité aux gaz altérés, en comparaison des polymères non modifiés.
摘要:
The present invention relates to a blend of polymeric materials comprising: (A) of from 1 to 80 percent by weight (based on the combined weights of Components A and B) of at least one substantially random interpolymer; wherein said interpolymer; (1) contains of from 0.5 to 50 mole percent of polymer units derived from; (a) at least one vinyl or vinylidene aromatic monomer, or (b) at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer, or (c) a combination of at least one vinyl or vinylidene aromatic monomer and at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer; (2) contains of from 50 to 99.5 mole percent of polymer units derived from at least one aliphatic α-olefin having from 2 to 20 carbon atoms; (3) has a melt index (I2) of from 0.01 to 100 g/10 min; and (4) has a molecular weight distribution (Mw/Mn) of from 1.5 to 20; (B) of from 20 to 99 weight percent based on the combined weights of Components A and B of one or more engineering thermoplastics.