HYDROXY-TERMINATED SILOXANE, POLYSILOXANE-POLYCARBONATE COPOLYMER, AND PREPARATION METHOD THEREOF
申请人:Kim Sun Mi
公开号:US20120309922A1
公开(公告)日:2012-12-06
Provided are a hydroxy-terminated siloxane, a polysiloxane-polycarbonate copolymer including same as a repeating unit, and a preparation method thereof. The hydroxyl-terminated siloxane has the structure of chemical formula 1.
Transparent polycarbonate polyester composition and process
申请人:——
公开号:US20040097662A1
公开(公告)日:2004-05-20
Disclosed is a transparent/translucent molding composition and process for making prepared from an impact modifier and a resin blend of polycarbonate and a cycloaliphatic polyester having a matching index of refraction.
Multilayered, transparent articles and a process for their preparation
申请人:Hale Raymond Wesley
公开号:US20060199871A1
公开(公告)日:2006-09-07
Disclosed is a process for the preparation of multilayered, shaped articles having high transparency and low haze and comprising one or more thermoplastic polymers selected from polyesters, polycarbonates, and polyarylates, and a copolyamide or a transamidized, homogeneous blend of a least two polyamides. The thermoplastic polymer components and the polyamide components have refractive indices which differ by about 0.006 to about −0.0006. The small difference in the refractive indices enable the incorporation of regrind into one or more of the layers of the article while maintaining high clarity. These articles can exhibit improved excellent barrier properties and good melt processability while retaining excellent mechanical properties. Metal catalysts can be incorporated into one or more layers to impart oxygen-scavenging properties.
Transparent polymer blends and articles prepared therefrom
申请人:Hale Raymond Wesley
公开号:US20060199919A1
公开(公告)日:2006-09-07
Disclosed are polymer compositions having high transparency and low haze comprising immiscible blends of one or more thermoplastic polymers selected from polyesters, polycarbonates, and polyarylates, and a copolyamide or a transamidized, homogeneous blend of a least two polyamides. The components of the immiscible blend which have refractive indices which differ by about 0.006 to about −0.0006. The small difference in the refractive indices enable the incorporation of regrind into the polymer composition to produce transparent shaped articles. The blends of the present invention are useful in producing shaped articles such as, for example, sheeting, films, tubes, bottles, preforms and profiles. These articles may have one or more layers and can exhibit improved excellent barrier properties and good melt processability while retaining excellent mechanical properties. Metal catalysts can be incorporated into the compositions to produce oxygen-scavenging compositions.
Transparent polymer blends containing polyesters comprising a cyclobutanediol and articles prepared therefrom
申请人:Hale Raymond Wesley
公开号:US20060228507A1
公开(公告)日:2006-10-12
Disclosed are polymer compositions having high transparency and low haze comprising immiscible blends of at least one polyester comprising 2,2,4,4-tetramethyl-1,3-cyclobutanediol, and a copolyamide or a transamidized, homogeneous blend of a least two polyamides. The components of the immiscible blend have refractive indices which differ by about 0.006 to about −0.0006. The small difference in the refractive indices enable the incorporation of regrind into the polymer composition to produce transparent shaped articles. The blends of the present invention are useful in producing shaped articles such as, for example, sheeting, films, tubes, bottles, preforms and profiles. These articles may have one or more layers and can exhibit improved excellent barrier properties and good melt processability while retaining excellent mechanical properties. Metal catalysts can be incorporated into the compositions to produce oxygen-scavenging compositions.