Patent classifications
C08G63/553
THERMOFORMED PACKAGING AND METHODS OF FORMING THE SAME
In various aspects, the present disclosure pertains to thermoformed webs that comprise polymer films having one or more thermoformed cavities contained therein, the polymer films comprising a polymer blend of amorphous polyethylene terephthalate (APET) and a copolyester that comprises (a) dicarboxylic acid residues (e.g., dicarboxylic acid residues that comprise terephthalic acid residues and, optionally, one or more additional dicarboxylic acid residues) and (b) diol residues (e.g., diol residues comprising ethylene glycol residues and, optionally, one or more additional diol monomer residues). Other aspects of the disclosure pertain to methods of forming such thermoformed webs, packaged products comprising such thermoformed webs, and methods of recycling such thermoformed webs.
THERMOFORMED PACKAGING AND METHODS OF FORMING THE SAME
In various aspects, the present disclosure pertains to thermoformed webs that comprise polymer films having one or more thermoformed cavities contained therein, the polymer films comprising a polymer blend of amorphous polyethylene terephthalate (APET) and a copolyester that comprises (a) dicarboxylic acid residues (e.g., dicarboxylic acid residues that comprise terephthalic acid residues and, optionally, one or more additional dicarboxylic acid residues) and (b) diol residues (e.g., diol residues comprising ethylene glycol residues and, optionally, one or more additional diol monomer residues). Other aspects of the disclosure pertain to methods of forming such thermoformed webs, packaged products comprising such thermoformed webs, and methods of recycling such thermoformed webs.
ASTAXANTHIN BASED POLYMER AND USES THEREOF
Provided are polymers having a repeating unit including at least one astaxanthin moiety. Also provided are processes for preparing the polymers and various uses thereof.
ASTAXANTHIN BASED POLYMER AND USES THEREOF
Provided are polymers having a repeating unit including at least one astaxanthin moiety. Also provided are processes for preparing the polymers and various uses thereof.
UPCYCLING OF POLYSTYRENE REINFORCED 3D PRINTABLE PHOTOPOLYMER NANOCOMPOSITES AND RING OPENING COPOLYMERIZATION
A 3D printable resin is provided. The 3D printable resin includes a polystyrene and at least one of a solubilizing crosslinker or a solubilizing polymer. Alternatively, a ring-opened polyester copolymer is provided. The ring-opened polyester copolymer is a product of a reaction between a cyclohexene anhydride and a glycidol allyl ether. In addition, A polyester resin is provided. The polyester resin includes a product of a reaction between a cyclohexene anhydride and a glycidol allyl ether, a 4-arm thiol, and a photoinitiator.
Polyurethanes
The present invention relates to a polyurethane which is the reaction product of a polyisocyanate and polyester, wherein said polyester is formed from a dimer fatty acid, a C.sub.2 to C.sub.4 diol, and a C.sub.8 to C.sub.16 dicarboxylic acid or C.sub.6 to C.sub.12 lactide. The inventions also relates to a polyester for use in forming the polyurethane of the first aspect, said polyester formed from a dimer fatty acid, a C.sub.2 to C.sub.4 diol, and a C.sub.8 to C.sub.16 dicarboxylic acid or C.sub.6 to C.sub.12 lactide.
Polyurethanes
The present invention relates to a polyurethane which is the reaction product of a polyisocyanate and polyester, wherein said polyester is formed from a dimer fatty acid, a C.sub.2 to C.sub.4 diol, and a C.sub.8 to C.sub.16 dicarboxylic acid or C.sub.6 to C.sub.12 lactide. The inventions also relates to a polyester for use in forming the polyurethane of the first aspect, said polyester formed from a dimer fatty acid, a C.sub.2 to C.sub.4 diol, and a C.sub.8 to C.sub.16 dicarboxylic acid or C.sub.6 to C.sub.12 lactide.
Method and formulation for an isocyanate-free foam using unsaturated polyesters
The presently disclosed subject matter is directed to a method of making a foam, specifically, the development of isocyanate-free foams using at least one unsaturated polyester. The at least one unsaturated polyester is a reaction product of at least one unsaturated cyclic anhydride, dicyclopentadiene, and at least one polyol. The disclosed formulation further comprises at least one reactive diluent and at least one initiator. The disclosed formulations are cured by a free radical mechanism.
POLYESTERS, POLYMER COMPOSITIONS, AND METHODS OF USING THEREOF
Provided herein are polyesters that comprise (i) monomer units derived from sugar-based bicyclic diol; (ii) monomer units derived from an unsaturated aliphatic diacid; and (iii) monomer units derived from a saturated aliphatic diacid. The monomer units derived from the ethylenically unsaturated aliphatic diacid can be present in an amount of from greater than 0 mole % to 40 mole % of the polyester. These polyesters can be formed into articles using additive manufacturing methods. The resulting articles can be biocompatible, resorbable over a span of from 3 months to 12 months following implantation in the human body, and can exhibit desirable mechanical properties for applications, including porosity and elasticity.
POLYESTERS, POLYMER COMPOSITIONS, AND METHODS OF USING THEREOF
Provided herein are polyesters that comprise (i) monomer units derived from sugar-based bicyclic diol; (ii) monomer units derived from an unsaturated aliphatic diacid; and (iii) monomer units derived from a saturated aliphatic diacid. The monomer units derived from the ethylenically unsaturated aliphatic diacid can be present in an amount of from greater than 0 mole % to 40 mole % of the polyester. These polyesters can be formed into articles using additive manufacturing methods. The resulting articles can be biocompatible, resorbable over a span of from 3 months to 12 months following implantation in the human body, and can exhibit desirable mechanical properties for applications, including porosity and elasticity.