摘要:
A method of making a thermoplastic composition comprises melt blending a reaction mixture comprising a first polycarbonate comprising repeat units derived from monoaryl monomers (II) and (III) and a diaryl monomer (IV), wherein the sum of the mole percent of the repeat units derived from monomers (II) and (III) is greater than or equal to 30 mole percent, and the mole percent of the repeat units derived from monomer (IV) is 5 to 70 mole percent, each based on the total moles the repeat units derived from monomers (II), (III), and (IV), and the total weight of the repeat units derived from monomers (II), (III), and (IV) is greater than or equal to 90 wt. % of the first polycarbonate; and an additional polycarbonate, comprising 50 to 100 mole percent of repeat units derived from a bisphenol cyclohexane.
摘要:
A multilayer thermoplastic film having polycarbonate layers is disclosed, in which a first layer comprises a first polycarbonate that comprises repeat units derived from one or more of a monoaryl monomer (II) and/or (III), and a diaryl monomer (IV) as defined herein. A second layer, adjacent to the first layer and coextruded therewith, comprises another polycarbonate that is not the same as a polycarbonate in the first layer. The first layer provides improved properties, for example hardness, impact, and/or scratch resistance.
摘要:
A multilayer thermoplastic film having polycarbonate layers is disclosed, in which a first layer comprises a first polycarbonate that comprises repeat units derived from one or more of a monoaryl monomer (II) and/or (III), and a diaryl monomer (IV) as defined herein. A second layer, adjacent to the first layer and coextruded therewith, comprises another polycarbonate that is not the same as a polycarbonate in the first layer. The first layer provides improved properties, for example hardness, impact, and/or scratch resistance.
摘要:
A method of making a thermoplastic composition comprises melt blending a reaction mixture comprising a first polycarbonate comprising repeat units derived from monoaryl monomers (II) and (III) and a diaryl monomer (IV), wherein the sum of the mole percent of the repeat units derived from monomers (II) and (III) is greater than or equal to 30 mole percent, and the mole percent of the repeat units derived from monomer (IV) is 5 to 70 mole percent, each based on the total moles the repeat units derived from monomers (II), (III), and (IV), and the total weight of the repeat units derived from monomers (II), (III), and (IV) is greater than or equal to 90 wt. % of the first polycarbonate; and an additional polycarbonate, comprising 50 to 100 mole percent of repeat units derived from a bisphenol cyclohexane.
摘要:
A transparent, flame retardant polycarbonate composition consisting essentially of an aromatic polycarbonate resin and a flame-retarding amount of a guanidine salt or derivatives thereof, wherein the amount of guanidine salt or derivatives thereof is about 1 wt. % or less.
摘要:
In one embodiment, a multilayer structure comprises: an initial terpolymer layer, a second layer comprising plastic and/or glass, a polycarbonate layer, and an adhesive layer. The initial terpolymer layer comprises a polycarbonate terpolymer comprising structures derived from a dihydroxy compound having Structure (I) wherein Rf is a hydrogen or CH3; a second dihydroxy compound of Structure (A) which is derived from Structure (I) and is different from Structure (I); and a third dihydroxy compound of Structure (B) which is not derived from Structure (I), wherein a sum of mole percent of all of Structures (I) and Structure (A) is greater than or equal to 45% relative to a sum of mole percent of all of Structure (I), Structure (A), and Structure (B) in the polycarbonate terpolymer.
摘要:
A transparent, flame retardant polycarbonate composition consisting essentially of an aromatic polycarbonate resin and a flame-retarding amount of a guanidine salt or derivatives thereof, wherein the amount of guanidine salt or derivatives thereof is about 1 wt. % or less.
摘要:
The present invention provides resin compositions comprising a thermoplastic resin, at least one phosphoramide having a glass transition point of at least about 0° C. preferably of at least about 10° C., and most preferably of at least about 20° C.; and at least one adjunct flame retardant. The present invention also relates to articles made from the resin compositions. The present invention also provides methods to make the resin compositions having improved heat properties over compositions known in the art.
摘要:
Disclosed herein is a method of preparing a polycarbonate composition comprising melt blending a first polycarbonate prepared by interfacial polymerization and having hydroxy end groups that are capped with endcapping groups, with a second polycarbonate prepared by melt polymerization and having hydroxy end groups that are capped with endcapping groups, wherein the second polycarbonate has a lower mole percent of endcapping groups than that of the first polycarbonate; wherein an article having a thickness of 3.2 mm and molded from the polycarbonate composition has a haze of less than 3 according to ASTM D1003-00; and wherein a flat article molded from the polycarbonate composition has a surface charge of −2 to +2 kV. A polycarbonate composition and complex article prepared according to the method are also disclosed.
摘要:
In one embodiment, a multilayer structure comprises: an initial terpolymer layer, a second layer comprising plastic and/or glass, a polycarbonate layer, and an adhesive layer. The initial terpolymer layer comprises a polycarbonate terpolymer derived from a first dihydroxy compound, a second dihydroxy compound, and a third dihydroxy compound, the first dihydroxy compound has Structure (A) wherein Rf is a hydrogen or CH3; the second dihydroxy compound has Structure (A) and is different from the first dihydroxy compound; and the third dihydroxy compound does not have Structure (A), and wherein a sum of mole percent of all of the first dihydroxy compound and the second dihydroxy compound is greater than or equal to 45% relative to a sum of mole percent of all of the first dihydroxy compound, the second dihydroxy compound, and the third dihydroxy compound in the polycarbonate terpolymer.