[12] Patent
[11] Patent No.:GC0009450  
[45] Date of Publishing the Grant of the Patent: 31/Dec /2018                56/2018  
Number of the Decision to Grant the Patent:2018/142097
Date of the Decision to Grant the Patent:23/Dec/2018

[21] Application No.:GCC/P/2006/19144

[22] Filing Date:16/9/2006

[30] Priority:

[33] State [32] Priority date [31] Priority No.
US
US
16/9/2005
28/7/2006
60/718.286
11/495.431

[72] Inventors:1- Mary Therese Jernigan،2- Rodney Scott Armentrout،3- Kenrick Lyle Venett،4- Bruce Roger DeBruin

[73] Owner: Grupo Petrotemex, S.A. DE C.V., Ricardo Margain No.444, Torre sur, Piso, 66265, Nuevo Leon, Mexico

[74] Agent: Suleiman I. Al-Ammar Law Office

  

 

  

[51]IPC:
Int. Cl.: C08G 63/02, 63/181, 63/84; C08K 3/00, 3/10, 5/00, 13/02, 3/32, 5/48, 5/56 (2006.01)

[56] Cited Documents:

-US 6365659 B1 (AOYAMA et al.) 2 April 2002  
Examiner: Bander M. Al-Thobity

[54] ALUMINUM CONTAINING POLYESTER POLYMERS HAVING LOW ACETALDEHYDE GENERATION RATES
[57] Abstract: A polyester polymer composition containing polyester polymers such as polymers having repeating ethylene terephthalate units, aluminum atoms in an amount of at least 3 ppm based on the weight of the polymer, the polyester polymers having an It.V. of at least 0.72 dL/g obtained through a melt phase polymerization and a residual acetaldehyde level of 10 ppm or less. Also provided are polyester polymer compositions containing polyester polymers and: (i) aluminum atoms (ii) alkaline earth metal atoms or alkali metal atoms or alkali compound residues, and (iii) a catalyst deactivator such as a phosphorus compound. The phosphorus compound is added to the polyester melt either late in the polycondensation or upon remelting a solid polyester polymer. The polyester polymer exhibits good L* brightness, clarity, and low levels of acetaldehyde generated upon melting
No. of claims: 18


 

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