Abstract: Processes and facilities for producing recycled chemical products from waste plastic are described herein. The processes include treating process streams, such as a pyrolysis gas stream and/or at least a portion of a cracker furnace effluent stream, in a caustic scrubber process to remove certain components, such as carbon dioxide. The spent caustic solution from the caustic scrubber process is then recycled and reused in other caustic processes within the facility, which can include a halogen neutralization process from removing halogens from a liquification process off-gas.

Abstract: The polyester compositions of the invention are useful in the manufacture of shrinkable films. The shrinkable films of the invention are comprised of polyester compositions comprising certain combinations of glycols and dicarboxylic acids in particular proportions which provide a lower level of shrinkage while having a melting temperature to accommodate modern sorting and recycling technologies.

Abstract: This invention relates to unsaturated polyester compositions comprising cycloaliphatic diols such as 2,2,4,4-tetramethyl-1,3-cyclobutanediol (TMCD) that are curable with an isocyanate crosslinker, an amino crosslinker, or a combination thereof. The unsaturated polyester compositions provide a good balance of desirable coating properties such as solvent resistance and wedge bend resistance in metal packaging applications.

Abstract: A dry spinning system and process are used to produce cellulose ester fibers. The process utilizes one or more of N,N-dimethylformamide, N,N-dimethylacetamide, dimethyl sulfoxide, or mixtures thereof as the dissolution solvent. The process minimizes or avoids discoloration of the fibers.

Abstract: The present disclosure relates to crystallizable shrinkable films and thermoformable film(s) or sheet(s) comprising blends of polyester compositions which comprise residues of terephthalic acid, neopentyl glycol (NPG), 1,4-cyclohexanedimethanol (CHDM), ethylene glycol (EG), and diethylene glycol (DEG), in certain compositional ranges having certain advantages and improved properties.

Abstract: Disclosed are novel curable polyesters comprising the reaction product of 2,2,4,4-tetramethyl-1,3-cyclobutanediol (TMCD) and dimethylolpropionic acid. The curable polyesters have particular utility in waterborne coating compositions. Such waterborne coating compositions provide a good balance of desirable coating properties for metal packaging applications.

Abstract: Reclosable lids with living hinges made from copolyester compositions which comprise residues of terephthalic acid, 1,4-cyclohexanedimethanol (CHDM), and ethylene glycol (EG) residues, in certain compositional ranges that have low haze and are recyclable in a PET stream.

Abstract: A shaped article comprising a molded component configured to accommodate or to receive a chemical composition that contains at least one degradation chemical, where the molded component is formed of a copolyester composition having high chemical resistance to the degradation chemicals and having a Tg of at least 95° C.

Abstract: The present application discloses cellulose ester compositions comprising starches having a degree of branching of from 2 to 6. The cellulose ester compositions exhibit improved industrial compostability and higher heat deflection temperatures over cellulose ester compositions having lower degrees of branching. The present application also discloses processes for making the compositions and articles made from the compostions.

Abstract: Biodegradable beads are provided that are formed from mixed cellulose esters, such as cellulose acetate butyrate or cellulose acetate propionate, and which exhibit superior oil absorption properties. The biodegradable beads and mixed cellulose esters are both freshwater biodegradable and may be used in various downstream applications where biodegradable components are desired and sought.

Abstract: A process for making recyclable, reclosable lids with living hinges made from copolyester compositions which comprise residues of terephthalic acid, 1,4-cyclohexanedimethanol (CHDM), and ethylene glycol (EG) residues, in certain compositional ranges that have low haze and are recyclable in a PET stream.

Abstract: Disclosed are novel curable acrylic modified polyesters comprising the reaction product of 2,2,4,4-tetramethyl-1,3-cyclobutanediol (TMCD) and dimethylolpropionic acid modified by an acrylic graft. The curable acrylic modified polyesters have particular utility in waterborne coating compositions. Such waterborne coating compositions provide a good balance of desirable coating properties for metal packaging applications.

Abstract: Processes are provided for the conversion of diglycol terephthalates to a dialkyl terephthalate, specifically bis(hydroxyalkyl) terephthalate to dimethyl terephthalate at low temperatures. The process involves initial catalyzed transesterification of bis(hydroxyalkyl) terephthalate with methanol at a first temperature of between 0° C. and 70° C. for an initial time followed by a second stage of the reaction at or below 30° C. In particular, the process is tolerant of significant amounts of glycol and water, so the precursor bis(hydroxyalkyl) terephthalate does not necessarily need to be highly pure or dry. Filtration of the reaction mixture allows recovery of high yields of dimethyl terephthalate of sufficiently high purity such that further purification is often not required in order to be repurposed for the manufacture of polyesters.

Abstract: The present invention relates to the combination of certain flame retardant additives in a copolyester to improve the flame retardant properties of the copolyester composition while retaining thermal and impact properties, methods of making the copolyester composition and articles made from the copolyester composition. More specifically, the present invention relates to the use of brominated flame retardant compounds in copolyester compositions to improve the flame retardant properties while surprisingly retaining glass transition temperature and impact properties.

Abstract: Processes for recovering dialkyl terephthalates. The processes can include exposing a polyester composition to one or more glycols to depolymerization conditions thereby providing one or more depolymerization products. The one or more glycols can include diethylene glycol (DEG), triethylene glycol (TEG), 1,4-cyclohexanedimethanol (CHDM), poly(ethylene glycol) (PEG), neopentyl glycol (NPG), propane diol (PDO), butanediol (BDO), 2-methyl-2,4-pentanediol (MP diol), poly(tetramethylene ether)glycol (PTMG), or a combination thereof. The one or more depolymerization products can be exposed to an alcoholysis process to recover dialkyl terephthalate. Optionally, ethylene glycol (EG) produced from the depolymerization process can be recovered and re-used in a subsequent dialkyl terephthalate recovery or other process.

Abstract: A process for chemically recycling waste polyethylene terephthalate (PET) carpet fibers. The process comprises providing a waste carpet fiber composition comprising at least 75 wt % of PET and 6 wt % or less of ash; reacting the waste carpet fiber composition with methanol to produce a depolymerized poly ester mixture comprising polyester oligomers, dimethyl terephthalate (DMT), and ethylene glycol (EG); and recovering the DMT and the EG from the depolymerized polyester mixture.

Abstract: Processes for recovering dialkyl terephthalates. The processes can include exposing a polyester composition to one or more glycols to depolymerization conditions thereby providing one or more depolymerization products. The one or more depolymerization products can be exposed to an alcoholysis process to recover dialkyl terephthalate.

Abstract: The present application discloses mixed cellulose esters that are freshwater biodegradable. The present application also discloses compositions, articles, beads and films made from the mixed cellulose esters.

Abstract: The present application discloses mixed cellulose esters that are freshwater biodegradable. The present application also discloses compositions, articles, beads and films made from the mixed cellulose esters.

Abstract: A heat integration process and system for a chemical recycling facility is provided that can lower the carbon footprint and global warming potential of the facility. More particularly, one or more heat transfer media may be used to recover heat energy from a waste plastic pyrolysis effluent and redistribute the recovered heat energy throughout the chemical recycling facility. Thus, the global warming potential of the chemical recycling facility may be optimized and lowered due to the heat integration process and system herein.