C08G63/66

RESIN COMPOSITION
20220162441 · 2022-05-26 · ·

The resin composition of the present invention includes a water-soluble resin (component A); a resin having a functional group capable of reacting or interacting with the component A (component B); and at least one selected from the group consisting of a monovalent inorganic salt and a polycyclic aromatic sulfonate (component C). According to the resin composition of the present invention, a resin composition whose physical properties before recycling can be reproduced even after recycling can be provided.

RESIN COMPOSITION
20220162441 · 2022-05-26 · ·

The resin composition of the present invention includes a water-soluble resin (component A); a resin having a functional group capable of reacting or interacting with the component A (component B); and at least one selected from the group consisting of a monovalent inorganic salt and a polycyclic aromatic sulfonate (component C). According to the resin composition of the present invention, a resin composition whose physical properties before recycling can be reproduced even after recycling can be provided.

AROMATIC POLYESTER POLYETHER POLYURETHANE PANELS AND USEFUL MATERIALS COMPRISING SAME

This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure. The disclosure provides aromatic polyester polyether polyols and compositions comprising such polyols. The disclosed aromatic polyester polyether polyols and compositions including same are the products of the transesterification reaction of polyethylene terephthalate (“PET”) and an ethoxylated triol, namely glycerin or trimethylolpropane, wherein the degree of ethoxylation is from 1 to 9 moles. At least some of the PET used to generate the aromatic polyester polyether polyols is derived from recycled PET. The disclosed aromatic polyester polyether polyols have utility in preparing polyurethane materials, for example.

AROMATIC POLYESTER POLYETHER POLYURETHANE PANELS AND USEFUL MATERIALS COMPRISING SAME

This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure. The disclosure provides aromatic polyester polyether polyols and compositions comprising such polyols. The disclosed aromatic polyester polyether polyols and compositions including same are the products of the transesterification reaction of polyethylene terephthalate (“PET”) and an ethoxylated triol, namely glycerin or trimethylolpropane, wherein the degree of ethoxylation is from 1 to 9 moles. At least some of the PET used to generate the aromatic polyester polyether polyols is derived from recycled PET. The disclosed aromatic polyester polyether polyols have utility in preparing polyurethane materials, for example.

Highly heat-resistant and highly transparent polycarbonate ester, and preparation method therefor

Disclosed is a bio-based polycarbonate ester comprising: (i) repeat unit 1 obtained from a condensation reaction of 1,4:3,6 -dianhydrohexitol and carbonate; and (ii) repeat unit 2 obtained from a condensation reaction of 1,4:3,6-dianhydrohexitol and 1,4-cyclohexanedicarboxylate; and a preparation method for the bio-based polycarbonate ester, comprising the steps of: (1) preparing a compound 1,4-diphenyl-cyclohexanedicarboxylate through a trans-esterification or esterification reaction of a compound represented by formula 2 ##STR00001##
and phenol; and (2) preparing a compound comprising a repeat unit represented by formula 1 ##STR00002##
through a polycarbonate melt polycondensation reaction of the 1,4-diphenyl -cyclohexanedicarboxylate prepared in step (1), a compound represented by formula 4 ##STR00003##
and 1,4:3,6-dianhydrohexitol.

Highly heat-resistant and highly transparent polycarbonate ester, and preparation method therefor

Disclosed is a bio-based polycarbonate ester comprising: (i) repeat unit 1 obtained from a condensation reaction of 1,4:3,6 -dianhydrohexitol and carbonate; and (ii) repeat unit 2 obtained from a condensation reaction of 1,4:3,6-dianhydrohexitol and 1,4-cyclohexanedicarboxylate; and a preparation method for the bio-based polycarbonate ester, comprising the steps of: (1) preparing a compound 1,4-diphenyl-cyclohexanedicarboxylate through a trans-esterification or esterification reaction of a compound represented by formula 2 ##STR00001##
and phenol; and (2) preparing a compound comprising a repeat unit represented by formula 1 ##STR00002##
through a polycarbonate melt polycondensation reaction of the 1,4-diphenyl -cyclohexanedicarboxylate prepared in step (1), a compound represented by formula 4 ##STR00003##
and 1,4:3,6-dianhydrohexitol.

THERMOPLASTIC RESIN, METHOD FOR MANUFACTURING SAME, AND OPTICAL LENS

Provided is a thermoplastic resin including constituent units represented by general formula (1). (In formula (1), R1 and R2 each independently represent: a hydrogen atom; a fluorine atom; a chlorine atom; a bromine atom; an iodine atom; a C1-6 alkyl group; a monocyclic or polycyclic C6-36 aryl group; a monocyclic or polycyclic heteroaryl group having 5-36 ring atoms, 1, 2, 3, or 4 of the ring atoms being selected from nitrogen, sulfur, and oxygen, and the other ring atoms being carbon in the heteroaryl group; a C2-6 alkenyl group; a C1-6 alkoxy group; or a C7-17 aralkyl group. In formula (1), X, a, and bare each as described in the present specification.)

##STR00001##

THERMOPLASTIC RESIN, METHOD FOR MANUFACTURING SAME, AND OPTICAL LENS

Provided is a thermoplastic resin including constituent units represented by general formula (1). (In formula (1), R1 and R2 each independently represent: a hydrogen atom; a fluorine atom; a chlorine atom; a bromine atom; an iodine atom; a C1-6 alkyl group; a monocyclic or polycyclic C6-36 aryl group; a monocyclic or polycyclic heteroaryl group having 5-36 ring atoms, 1, 2, 3, or 4 of the ring atoms being selected from nitrogen, sulfur, and oxygen, and the other ring atoms being carbon in the heteroaryl group; a C2-6 alkenyl group; a C1-6 alkoxy group; or a C7-17 aralkyl group. In formula (1), X, a, and bare each as described in the present specification.)

##STR00001##

PROCESS FOR PREPARING CARBOXYLIC ACID ESTER-CROSS-LINKED POLYGLYCEROL ESTERS OF 3-HYDROXYBUTYRIC ACID
20230257517 · 2023-08-17 ·

The invention relates to a method for producing polyglycerol esters of 3-hydroxybutyric acid crosslinked with polycarboxylic acids (i.e. polycarboxylic acid crosslinked 3-hydroxybutyric acid polyglycerol esters), as well as the products thus obtained and their use.

RESIN COMPOSITION AND MOLDED ARTICLE

A resin composition containing a liquid crystal polymer (A) and a predetermined polyimide resin (B), wherein the liquid crystal polymer (A) contains at least one repeating structural unit selected from the group consisting of repeating structural units represented by the following formulas (I) to (IV), and a molded article containing the same:

##STR00001##

wherein a, b, and c represent an average number of repeating structural units.