摘要:
Disclosed is a modified endcapped polyalkylene terephthalate such as modified endcapped polybutylene terephthalate, as well as processes for making the modified endcapped polybutylene terephthalate and compositions and articles derived therefrom.
摘要:
Biodegradable compositions containing an aliphatic-aromatic copolyester derived from aromatic polyesters. Methods of making the compositions and articles made from the compositions.
摘要:
A coated fertilizer comprises a fertilizer granule; and a coating disposed on a surface of the fertilizer granule, wherein the coating comprises a poly(lactic acid); a second polymer comprising a poly(butylene succinate), a cellulose triacetate, or a combination comprising at least one of the foregoing; and a sealant. Methods of making the coated fertilizer are also disclosed.
摘要:
Disclosed is a process for the manufacture of a polyalkylene terephthalate such as polybutylene terephthalate. In particular, the process comprises employing a titanium-containing catalyst formed by the reaction product of tetraalkyl titanate and a complexing agent comprising a phosphorous, nitrogen or boron atom. The process is used to prepare polyalkylene terephthalates characterized by improved hydrostability, as well as compositions derived therefrom.
摘要:
Methods for attaching a reducible nanomaterial to an organic polymer are described herein. A method includes subjecting a reaction mixture that includes the reducible nanomaterial and the organic polymer to a reducing agent under reaction conditions sufficient to reduce the nanomaterial, activate the organic polymer, and attach the reduced nanomaterial to the organic polymer during the reaction.
摘要:
Biodegradable compositions containing an aliphatic-aromatic copolyester derived from aromatic polyesters. Methods of making the compositions and articles made from the compositions.
摘要:
A coated fertilizer comprises a fertilizer granule; and a coating disposed on a surface of the fertilizer granule, wherein the coating comprises a poly(lactic acid); a second polymer comprising a poly(butylene succinate), a cellulose triacetate, or a combination comprising at least one of the foregoing; and a sealant. Methods of making the coated fertilizer are also disclosed.
摘要:
Disclosed is an improved process for preparing a modified polyalkylene terephthalate by melt polycondensation followed optionally by solid state condensation comprising reacting an alkylene diol and polyethylene terephthalate, wherein polymerization occurs in the presence of a catalyst complex formed by reaction of tetra(alkyl) titanate and a compound selected from phosphorus-containing compounds, nitrogen-containing compounds, boroncontaining compounds, and combinations thereof.
摘要:
A poly(butylene terephthalate-co-adipate) copolymer is disclosed, where the copolymer has a melt temperature from 105 to 125° C., and wherein the copolymer includes a polyester component residue derived from a terephthalic-containing polyester homopolymer, a terephthalic-containing polyester copolymer, and combinations thereof, and further includes a polyester residue component; a quencher residue; and from 0.05 to 5 weight % based on total weight of poly(butylene terephthalate-co-adipate) copolymer of a residue of an isocyanurate, polyisocyanate, and combinations thereof. Compositions and articles including the copolymer are also described.
摘要:
A coated fertilizer comprising a fertilizer granule and a coating disposed on a surface of the fertilizer granule, wherein the coating comprises interpenetrating domains comprising polymer domains and wax domains. A method of making the coated fertilizer is also disclosed.