The present invention relates to a method for preparing a bio-based polycarbonate ester, the method comprising the steps of: (1) preparing a compound represented by chemical formula 3 by converting a compound represented by chemical formula 2 into an intermediate reactant having an easily detachable functional group, followed by a nucleophilic reaction with phenol; and (2) preparing a compound including a repeat unit represented by chemical formula 1 by a polycarbonate melt condensation polymerization of the compound represented by chemical formula 3, prepared in step (1), a compound represented by chemical formula 4, and 1,4:3,6-dianhydrohexitol. The bio-based polycarbonate ester according to the present invention can regulate merits and demerits of physical properties obtained from each repeat unit, and can be favorably used for various uses due to high degrees of transparency and heat resistance thereof.

The present invention relates to a method for preparing a bio-based polycarbonate ester, the method comprising the steps of: (1) preparing a compound represented by chemical formula 3 by converting a compound represented by chemical formula 2 into an intermediate reactant having an easily detachable functional group, followed by a nucleophilic reaction with phenol; and (2) preparing a compound including a repeat unit represented by chemical formula 1 by a polycarbonate melt condensation polymerization of the compound represented by chemical formula 3, prepared in step (1), a compound represented by chemical formula 4, and 1,4:3,6-dianhydrohexitol. The bio-based polycarbonate ester according to the present invention can regulate merits and demerits of physical properties obtained from each repeat unit, and can be favorably used for various uses due to high degrees of transparency and heat resistance thereof.

A heat-resistant, bio-based polycarbonate ester prepared by melt polycondensation of 1,4:3,6-dianhydrohexitol and a carbonate or 1,4-cyclohexanedicarboxylate is disclosed. The heat-resistant, bio-based polycarbonate ester includes a repeat unit 1 of Formula 1, a repeat unit 2 of Formula 2, and a repeat unit 3 of Formula 3. The polycarbonate ester has excellent heat resistance, transparency, and processability. A method of producing the polycarbonate includes a step of melt polycondensation of 1,4:3,6-dianhydrohexitol and a carbonate or 1,4-cyclohexanedicarboxylate.

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A heat-resistant, bio-based polycarbonate ester prepared by melt polycondensation of 1,4:3,6-dianhydrohexitol and a carbonate or 1,4-cyclohexanedicarboxylate is disclosed. The heat-resistant, bio-based polycarbonate ester includes a repeat unit 1 of Formula 1, a repeat unit 2 of Formula 2, and a repeat unit 3 of Formula 3. The polycarbonate ester has excellent heat resistance, transparency, and processability. A method of producing the polycarbonate includes a step of melt polycondensation of 1,4:3,6-dianhydrohexitol and a carbonate or 1,4-cyclohexanedicarboxylate.

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The present invention relates to a process for preparing a polyester carbonate on the basis of diacids and at least one 1,4:3,6-dianhydrohexitol and at least one additional cycloaliphatic dihydroxy compound, to a polyester carbonate and to a molding compound and a molding body containing the polyester carbonate. The polyester carbonates according to the invention are characterized by a high proportion of bio-based structural motifs and good mechanical properties and molecular weights.

The present invention relates to a process for preparing a polyester carbonate on the basis of diacids and at least one 1,4:3,6-dianhydrohexitol and at least one additional cycloaliphatic dihydroxy compound, to a polyester carbonate and to a molding compound and a molding body containing the polyester carbonate. The polyester carbonates according to the invention are characterized by a high proportion of bio-based structural motifs and good mechanical properties and molecular weights.

A two-component, solvent-based polyurethane adhesive composition based on a crystalline polyester-polycarbonate for producing an adhesive laminate structure including: (a) at least one isocyanate component; and (b) at least one isocyanate-reactive component comprising at least one crystalline polyester-polycarbonate compound; and a process for preparing the adhesive composition.

The present invention provides new classes of phenol compounds, including those derived from tyrosol and analogues, useful as monomers for preparation of biocompatible polymers, and biocompatible polymers prepared from these monomeric phenol compounds, including novel biodegradable and/or bioresorbable polymers. These biocompatible polymers or polymer compositions with enhanced bioresorbability and processibility are useful in a variety of medical applications, such as in medical devices and con-trolled-release therapeutic formulations. The invention also provides methods for preparing these monomeric phenol compounds and biocompatible polymers.

The purpose of the present invention is to provide a thermoplastic resin that has a high refractive index and enables low birefringence and balanced heat resistance and moldability. This thermosetting resin includes repeating units represented by formula (1). (In the formula, the rings Z are the same or different and represent an aromatic hydrocarbon ring, R.sup.1 and R.sup.2 independently represent a C1-C12 hydrocarbon group optionally including a hydrogen atom, a halogen atom, and an aromatic group, Ar.sup.1 and Ar.sup.2 represent a C6-C10 aromatic group optionally having a substituent, L.sup.1 and L.sup.2 independently represent a divalent linking group, j and k independently represent an integer of 0 or more, m and n independently represent 0 or 1, and W is at least one selected from the groups represented by formulae (2) and (3).) (In the formula, X represents a divalent linking group.)

The purpose of the present invention is to provide a thermoplastic resin that has a high refractive index and enables low birefringence and balanced heat resistance and moldability. This thermosetting resin includes repeating units represented by formula (1). (In the formula, the rings Z are the same or different and represent an aromatic hydrocarbon ring, R.sup.1 and R.sup.2 independently represent a C1-C12 hydrocarbon group optionally including a hydrogen atom, a halogen atom, and an aromatic group, Ar.sup.1 and Ar.sup.2 represent a C6-C10 aromatic group optionally having a substituent, L.sup.1 and L.sup.2 independently represent a divalent linking group, j and k independently represent an integer of 0 or more, m and n independently represent 0 or 1, and W is at least one selected from the groups represented by formulae (2) and (3).) (In the formula, X represents a divalent linking group.)