Process For Propelling Foodstuffs or the Like into a Crowd
A method of launching foodstuffs into a crowd for promotional and entertainment purposes.
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AbstractA process that can be used in an esterification and polycondensation processes to produce a polyester such as, for example, poly(trimethylene terephthalate) is disclosed. The process comprises contacting an acid with 1,3-propanediol in the presence of a catalyst comprising tin and titanium. A copolymer that contains up to 20 mole percent of another acid and/or a second alcohol is also disclosed. Further disclosed are a composition of, or comprising, a bis(3-hydroxypropyl) terephthalate prepolymer or a composition of, or comprising, a poly(trimethylene terephthalate) polymer. The bis(3-hydroxypropyl) terephthalate prepolymer and poly(trimethylene terephthalate) can each contain 10 to 100 ppm tin and 10 to 200 ppm titanium relative to the terephthalic acid content.Other References
| InventorsAssigneeApplicationNo. 500340 filed on 02/08/2000US Classes:528/279, Material contains a Group IVB metal atom (Ti, Zr, Hf)524/755, Ether compound DNRM, e.g., aryl ether, dimethylether, etc.524/765, Alcohol compound as DNRM, i.e., R-OH524/783, Group IV or Group IIB, i.e., Ge, Sn, Pb, Zr, Ti, Hf, Zn, Cd, Hg528/283, Material contains a Group IVA metal atom (Ge, Sn, Pb)528/298, Fused- or bridged-ring-containing reactant other than solely as cyclic acid anhydride group528/301, Acyclic ether-oxygen compound528/302, Two or more carboxylic acid or derivatives or mixtures thereof528/308, Aryl-containing carboxylic acid or derivative of an aryl-containing dicarboxylic acid528/308.6Contains terephthalic acid or substituted forms thereofField of Search528/279, Material contains a Group IVB metal atom (Ti, Zr, Hf)528/283, Material contains a Group IVA metal atom (Ge, Sn, Pb)528/298, Fused- or bridged-ring-containing reactant other than solely as cyclic acid anhydride group528/301, Acyclic ether-oxygen compound528/302, Two or more carboxylic acid or derivatives or mixtures thereof528/308, Aryl-containing carboxylic acid or derivative of an aryl-containing dicarboxylic acid528/308.6, Contains terephthalic acid or substituted forms thereof524/755, Ether compound DNRM, e.g., aryl ether, dimethylether, etc.524/765, Alcohol compound as DNRM, i.e., R-OH524/783Group IV or Group IIB, i.e., Ge, Sn, Pb, Zr, Ti, Hf, Zn, Cd, HgExaminersPrimary: Acquah, Samuel A.US Patent References3056818, 3936421, Process of preparing polytetramethylene terephthalateIssued on: 02/03/1976 Inventor: Hayashi , et al.4018708, Tin-titanium complexes as esterification/transesterification catalysts Issued on: 04/19/1977 Inventor: Vogt , et al.4020010, Tin titanium complexes as esterification/transesterification catalysts Issued on: 04/26/1977 Inventor: Vogt , et al.4611049, Process for producing aromatic polyester Issued on: 09/09/1986 Inventor: Kuratsuji , et al.5015759, Process for increasing the direct esterification reaction rate of a diacid with a glycol Issued on: 05/14/1991 Inventor: Lowe5340909, Poly(1,3-propylene terephthalate) Issued on: 08/23/1994 Inventor: Doerr, et al.5434239, Continuous polyester process Issued on: 07/18/1995 Inventor: Bhatia5510454, Production of poly(ethylene terephthalate) Issued on: 04/23/1996 Inventor: Stouffer, et al.5540868, Process for pellet formation from amorphous polyester Issued on: 07/30/1996 Inventor: Stouffer, et al.5633018, Apparatus for forming crystalline polymer pellets Issued on: 05/27/1997 Inventor: Stouffer, et al.5663281, Process for preparing high molecular weight polyesters Issued on: 09/02/1997 Inventor: Brugel5670606, Crystalline form of poly(ethylene 2,6-naphthalate) and a method for its production Issued on: 09/23/1997 Inventor: Stouffer, et al.5677415, Apparatus and process for a polycondensation reaction Issued on: 10/14/1997 Inventor: Bhatia5763104, Production of poly(trimethylene terephthalate) Issued on: 06/09/1998 Inventor: Stouffer, et al.5786443, Process of making polyester prepolymer Issued on: 07/28/1998 Inventor: Lowe5811496, Process for polymerization of polyester oligomers Issued on: 09/22/1998 Inventor: Iwasyk, et al.5840957, Transesterification process using lanthanum compound catalyst Issued on: 11/24/1998 Inventor: Kurian, et al.5891985, Soluble mono-alkyl stannoic acid catalyst and its use in preparing high molecular weight polyesters Issued on: 04/06/1999 Inventor: Brugel5990265, Production of poly(trimethylene terephthalate) Issued on: 11/23/1999 Inventor: Blanchard, et al.6093786Process for preparing polytrimethylene terephthalate Issued on: 07/25/2000 Inventor: Kelsey Foreign Patent References
International ClassC08G 063/78 |