Provided is an aromatic polycarbonate resin composition, including, with respect to 100 parts by mass of an aromatic polycarbonate resin (A), 0.01 part by mass to 0.1 part by mass of an alicyclic epoxy compound (B), 0.2 part by mass to 0.6 part by mass of a polyether compound (C) having a polyoxyalkylene structure, and 0.005 part by mass to 1 part by mass of a phosphorus-based compound (D), wherein a difference between a YI value of a 5-millimeter thick molded body, which is obtained by molding the aromatic polycarbonate resin composition at 320 C., after a lapse of 3,000 hours under an environment at 85 C. and a humidity of 85%, and an initial YI value thereof is 3.0 or less.

An object of the present invention is to provide a phase difference film that can exhibit sufficient reciprocal wavelength dispersibility. The present invention includes a copolymer containing at least one selected from a unit represented by Formula (1) and a unit represented by Formula (2), and a unit represented by Formula (3), in which 20 nm<Re (548)<300 nm, 0.5<Re (446)/Re (548)<1.0, and 1.0<Re (629)/Re (548)<2.0. Here, Re (446), Re (548), and Re (629) represent in-plane retardations at wavelengths of 446 nm, 548 nm, and 629 nm, respectively.

Provided is an aromatic polycarbonate resin that has not only high fluidity and thin-wall moldability but also excellent hue and transparency. The aromatic polycarbonate resin contains a structural unit derived from an aromatic dihydroxy compound and a carbonate-forming compound. A hydrolysate obtained by hydrolysis of the aromatic polycarbonate resin contains aromatic dihydroxy compounds represented by the following Formulae (2) and (3), and the content of the compound represented by Formula (2) is 250 ppm by mass or less with respect to that of the compound represented by Formula (3), wherein R.sub.1 represents an alkyl group having 1 to 24 carbon atoms; R.sub.2 and R.sub.3 each independently represent a monovalent hydrocarbon group having 1 to 15 carbon atoms; and a and b each independently represent an integer of 0 to 4:

##STR00001##

A carbonate-containing oligomer, a manufacturing method for a carbonate-containing oligomer and a crosslinked product are provided. The carbonate-containing oligomer includes a structure represented by formula (I), and formula (I) is defined as in the specification. The crosslinked product is obtained by mixing the carbonate-containing oligomer with a modified polyphenylene ether resin, and adding a peroxide to perform a curing reaction.

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.

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##

A copolycarbonate comprises first repeating units, second repeating units different from the first repeating units, and third repeating units different from the first and second repeating units; and wherein the first repeating units are phthalimidine carbonate units, the second repeating units are carbonate units of the formula (I) wherein R.sup.c and R.sup.d are each independently a C.sub.1-12 alkyl, C.sub.2-12 alkenyl, C.sub.3-8 cycloalkyl, or C.sub.1-12 alkoxy, each R.sup.6 is independently C.sub.1-3 alkyl or phenyl; X.sup.a is a C.sub.6-12 polycyclic aryl, C.sub.3-18 mono- or polycycloalkylene, C.sub.3-18 mono- or polycycloalkylidene, -(Q.sup.1)x-G-(Q.sup.2)y- group wherein Q.sup.1 and Q.sup.2 are each independently a C.sub.1-3 alkylene, G is a C.sub.3-10 cycloalkylene, x is 0 or 1, and y is 1; and m and n are each independently 0 to 4; and the third repeating units are carbonate units (II) wherein R.sup.e and R.sup.f are each independently C.sub.1-12 alkyl, C.sub.2-12 alkenyl, C.sub.3-8 cycloalkyl, or C.sub.1-12 alkoxy, a and b are each independently integers of 0 to 4, and X.sup.b is a single bond, 0, S, S(0)-, S(0).sub.2, C(0), or C.sub.1-32 bridging hydrocarbon group, provided that X.sup.b is not a phthalimidine group or X.sup.a.

##STR00001##

Provided is a resin composition that exhibits excellent strength and fluidity. According to one embodiment, the provided resin composition contains a resin containing a repeating unit derived from a compound represented by general formula (1), and also contains a polymer having an end structure represented by general formula (A) and/or contains a compound represented by general formula (B).

A monomer is represented by Chemical Formula 1: ##STR00001## wherein in Chemical Formula 1, X.sup.1 and X.sup.2 are independently O, C(O), or C(O)O, R.sup.1 to R.sup.10 are independently hydrogen, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, a substituted or unsubstituted C3 to C20 cycloalkyl group, a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted C3 to C20 heterocyclic group, a substituted or unsubstituted silyl group, a hydroxy group, a halogen, a nitro group, or a combination thereof, and n1 and n2 are independently an integer ranging from 0 to 3.