The present invention relates to a method for preparing poly(carbonate-etherimide) compound comprising polycarbonate segment as shown in the structure (A) and polyetherimide segment as shown in the structure (B). Said method does not contain a highly toxic phosgene in its operation, can be performed easily, and can be operated at not high temperature. wherein R.sub.1 represents aromatic with 6 to 30 carbon atoms or, optionally said aromatic is bonded with heteroatom; R.sub.2 represents aromatic with 6 to 30 carbon atoms or, optionally said aromatic is bonded with heteroatom; m is an integer from 1 to 15; and n is an integer from 1 to 10.

##STR00001##

Polycarbonate blend compositions are disclosed. The compositions include at least one polycarbonate useful for high heat applications. The compositions include at least one poly(aliphatic ester)-polycarbonate. The compositions can include one or more additional polymers. The compositions can include one or more additives. The compositions can be used to prepare articles of manufacture.

A lens comprising a copolycarbonate comprising bisphenol A carbonate units and second carbonate units of the formula (I) and 2 to 40 ppm of an organosulfonic stabilizer of the formula (II), wherein the second carbonate units are present in an amount of 20 to 49 mol %, preferably 30 to 40 mol % based on the sum of the moles of the copolycarbonate and the bisphenol A homopolycarbonate; and the polycarbonate composition has: a Vicat B120 of 160 C. or higher measured according to ISO 306; and a yellowness index of less than 12, measured according to ASTM D1925.

##STR00001##

A lens comprising a copolycarbonate comprising bisphenol A carbonate units and second carbonate units of the formula (I) and 2 to 40 ppm of an organosulfonic stabilizer of the formula (II), wherein the second carbonate units are present in an amount of 20 to 49 mol %, preferably 30 to 40 mol % based on the sum of the moles of the copolycarbonate and the bisphenol A homopolycarbonate; and the polycarbonate composition has: a Vicat B120 of 160 C. or higher measured according to ISO 306; and a yellowness index of less than 12, measured according to ASTM D1925.

##STR00001##

The present application provides polymer materials having the desired properties for implantation into a human or animal body, in particular, biocompatibility, biodegradability, radiopacity and mechanical properties. Methods of making such polymer materials, compositions or devices comprising such polymer materials, and uses of such polymer materials, compositions and devices are also disclosed.

Provided is a polycarbonate-based resin having a ratio of an amine terminal to all terminal groups of 1.0 mol % or more.

Provided is a polycarbonate-based resin having a ratio of an amine terminal to all terminal groups of 1.0 mol % or more.

A terminally modified polycarbonate resin that has ultraviolet absorbing capability is provided. More specifically, the terminally modified polycarbonate resin has a structure represented by general formula (A) and a constituent unit that is derived from a dihydric phenol. (In general formula (A), R.sub.1 represents a hydrogen atom or an alkyl group having 1-6 carbon atoms; R.sub.2 represents an alkylene group having 1-6 carbon atoms; R.sub.3 represents a hydrogen atom or a methyl group; R.sub.4 represents a hydrogen atom or a halogen atom; and * represents the bonding position to the main chain of the polycarbonate resin.) ##STR00001##

Disclosed herein are methods and thermoplastic compositions of blended polycarbonate thermoplastic compositions with improved thermal resistance and conductivity. The resulting blended polymer thermoplastic compositions, comprising at least one aromatic polycarbonate; at least one high heat 3,3-bis(4-hydroxyphenyl)-2-phenylisoindolin-1-one (PPPBP)-polycarbonate copolymer; at least one polycarbonate-siloxane copolymer; and at least one laser direct structuring additive; wherein the laser direct structuring additive is a filler selected from a metal oxide; a metal oxide coated filler; or a combination thereof; wherein the composition is capable of being plated after being activated using a laser; and wherein the composition has a heat distortion temperature higher than 150 degrees Celsius, as determined by ASTM D 648.

The invention relates to the use of copolycarbonates stable at high temperature as a supporting material in the FDM (fused deposition modeling) method, said copolycarbonates having a Vicat temperature determined in accordance with ISO 306:2013 of at least 150 C. Polyester, polyamide, PC/polyester blend, and/or polyaryl ether ketone is used as a printing material. Used as copolycarbonates are copolycarbonates containing one or more monomer units selected from the group consisting of the structural units of general formulas (1a), (1b), (1c), (1d), in which R.sup.1 represents hydrogen or C.sub.1 to C.sub.4 alkyl, R.sup.2 represents C.sub.1 to C.sub.4 alkyl, n represents 0, 1, 2, or 3, and R.sup.3 represents C.sub.1 to C.sub.4 alkyl, aralkyl, or aryl, and/or containing one or more monomer units of formula (1e), in which R.sup.19 represents hydrogen, Cl, Br, or a C.sub.1 to C.sub.4 alkyl residue, R.sup.17 and R.sup.18 are the same or different and represent, independently of each other, an aryl residue, a C.sub.1 to C.sub.10 alkyl residue, or a C.sub.1 to C.sub.10 alkylaryl residue, and wherein X is a single bond, CO, O, a C.sub.1 to C.sub.6 alkylene residue, a C.sub.2 to C.sub.5 alkylidene residue, a C.sub.5 to C.sub.12 cycloalkylidene residue, or a C.sub.6 to C.sub.12 arylene residue, which optionally can be condensed with further aromatic rings that contain heteroatoms, n is a number from 1 to 500, m is a number from 1 to 10, and p is 0 or 1.