A polyphosphonate resin composition of the present invention comprises: about 100 parts by weight of a polyphosphonate resin containing a repeating unit represented by chemical formula 1; and about 0.01 to about 0.05 parts by weight of a phosphite compound containing at least one of diphenyl hydrogen phosphite and a phosphite compound represented by chemical formula 2. The polyphosphonate resin composition has excellent heat resistance, wet heat stability, discoloration resistance, flame retardancy, and the like.

A polyphosphonate resin composition of the present invention comprises: approximately 100 parts by weight of a polyphosphonate resin comprising a repeating unit represented by chemical formula 1; and approximately 0.01-0.05 parts by weight of a sulfonate compound represented by chemical formula 2. The polyphosphonate resin composition has excellent thermal discoloration resistance, light discoloration resistance, flame retardancy, light transmittance and the like.

A polyphosphonate resin composition of the present invention comprises: approximately 100 parts by weight of a polyphosphonate resin comprising a repeating unit represented by chemical formula 1; and approximately 0.01-0.05 parts by weight of a sulfonate compound represented by chemical formula 2. The polyphosphonate resin composition has excellent thermal discoloration resistance, light discoloration resistance, flame retardancy, light transmittance and the like.

The present disclosure relates to a cathode active material for a secondary battery, comprising a poly(S-co-VPA) vulcanized polymer, a preparation method thereof, and a lithium-sulfur secondary battery comprising the same.

Disclosed are polymers comprising the moiety A, which is a moiety of formula I: and pharmaceutically acceptable salts thereof, wherein R, R.sup.1, R.sup.2, L, n1 and n2 are as defined herein. These polymers are useful for delivering nucleic acids to subject. These polymers and pharmaceutically acceptable compositions comprising such polymers and nucleic acids can be useful for treating various diseases, disorders and conditions. ##STR00001##

Disclosed are polymers comprising the moiety A, which is a moiety of formula I: and pharmaceutically acceptable salts thereof, wherein R, R.sup.1, R.sup.2, L, n1 and n2 are as defined herein. These polymers are useful for delivering nucleic acids to subject. These polymers and pharmaceutically acceptable compositions comprising such polymers and nucleic acids can be useful for treating various diseases, disorders and conditions. ##STR00001##

A composition having a polymer having a polymer matrix, a first stabilizer molecule within the polymer matrix, and a second stabilizer molecule within the polymer matrix, the first stabilizer molecule having the structure:

##STR00001##

wherein each R.sub.1-R.sub.4 is independently selected from the group consisting of C.sub.1-22 alkyl, C.sub.6-40 cycloalkyl, C.sub.2-20 alkyl glycol ether, and Y—OH; each Y is independently selected from the group consisting of C.sub.2-40 alkylene, C.sub.2-40 alkylene lactone, and C.sub.6-40 cycloalkylene; m is an integer ranging from 1 to 100; and x is an integer ranging from 1 to 1,000; the second stabilizer molecule is a monophosphite having an aryl moiety; wherein the claimed composition does not include a hindered phenolic antioxidant, lactone stabilizer, or hydroxylamine stabilizer.

Process for making a cathode comprising the following steps (a) Providing a cathode active material selected from layered lithium transition metal oxides, lithiated spinels, lithium transition metal phosphate with olivine structure, and lithium nickel-cobalt aluminum oxides, (b) treating said cathode active material with an oligomer bearing units according to general formula (I a),

##STR00001## wherein R.sup.1 are the same or different and selected from hydrogen and C.sub.1-C.sub.4-alkyl, aryl, and C.sub.4-C.sub.7-cycloalkyl, R.sup.2 and R.sup.3 are selected independently at each occurrence from phenyl and C.sub.1-C.sub.8-alkyl, C.sub.4-C.sub.7-cycloalkyl, C.sub.1-C.sub.8-haloalkyl, OPR.sup.1(O)—*, and —(CR.sup.9.sub.2).sub.p—Si(R.sup.2).sub.2—* wherein one or more non-vicinal CR.sup.9.sub.2-groups may be replaced by oxygen, R.sup.9 is selected independently at each occurrence from H and C.sub.1-C.sub.4-alkyl, and p is a variable from zero to 6, and wherein the overall majority of R.sup.2 and R.sup.3 is selected from C.sub.1-C.sub.8-alkyl, and, optionally, at least one of carbon in electrically conductive form and, optionally, a binder, (c) applying a slurry of said treated cathode active material to a current collector, and (d) at least partially removing solvent used in step (c).

Process for making a cathode comprising the following steps (a) Providing a cathode active material selected from layered lithium transition metal oxides, lithiated spinels, lithium transition metal phosphate with olivine structure, and lithium nickel-cobalt aluminum oxides, (b) treating said cathode active material with an oligomer bearing units according to general formula (I a),

##STR00001## wherein R.sup.1 are the same or different and selected from hydrogen and C.sub.1-C.sub.4-alkyl, aryl, and C.sub.4-C.sub.7-cycloalkyl, R.sup.2 and R.sup.3 are selected independently at each occurrence from phenyl and C.sub.1-C.sub.8-alkyl, C.sub.4-C.sub.7-cycloalkyl, C.sub.1-C.sub.8-haloalkyl, OPR.sup.1(O)—*, and —(CR.sup.9.sub.2).sub.p—Si(R.sup.2).sub.2—* wherein one or more non-vicinal CR.sup.9.sub.2-groups may be replaced by oxygen, R.sup.9 is selected independently at each occurrence from H and C.sub.1-C.sub.4-alkyl, and p is a variable from zero to 6, and wherein the overall majority of R.sup.2 and R.sup.3 is selected from C.sub.1-C.sub.8-alkyl, and, optionally, at least one of carbon in electrically conductive form and, optionally, a binder, (c) applying a slurry of said treated cathode active material to a current collector, and (d) at least partially removing solvent used in step (c).

The present invention relates to an oligomer or polymer, or to a composition comprising said oligomer or polymer, which are particularly useful as a stabiliser for organic materials. The present invention also relates to an intermediate for the synthesis of the above-mentioned oligomers or polymers.