Process for injection molding of polyethylene terephthalate...

Details Process for injection molding of polyethylene terephthalate... Process for injection molding of polyethylene terephthalate...

Category

B - Operations, Transporting

Subcategory

29

Subsubcategory

C

CPC

18/715

IPC codes

B29C 45/00 (2006.01) C08L 67/02 (2006.01)

Type

Patent

Patent number

CA 1147119

Description

Mo-2040-Ca PC-56-II-Ca PROCESS FOR INJECTION MOLDING OF POLYETHYLENE TEREPHTHALATE COMPOSITIONS AT REDUCED MOLD TEMPERATURE ABSTRACT OF THE DISCLOSURE This disclosure is concerned with a process for injection molding polyethylene terephthalate into colder molds, i.e., less than 120°C, and still obtaining crystalline parts by incorporating an organic imide containing compound having a melting point in excess of 240°C into the composition. The presence of this additive enhances the crystallization velocity of the composition and permits the achievement of crystalline parts with optimum properties with colder molds and shorter molding cycles than are conventional for poly- ethylene terephthalate molding compositions. Mo-2040-Ca PC-56-II-Ca

Application Number

363908

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