Modified copolyethylene terephthalate

Details Modified copolyethylene terephthalate Modified copolyethylene terephthalate

1991-11-01

1993-08-10

Kight, III, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528272, 5283081, 5283083, C08G 6300, C08G 6316, C08G 6318, C08G 6302

Patent

active

052350274

ABSTRACT:
Modified copolyethylene terephthalate, for processing by extrusion blow molding, containing units of isophthalic acid, diethylene glycol and pentaerythritol, antimony and phosphorus plus small amounts of red toner and a blue toner. Also a process for producing same by direct esterification, melt polycondensation and heat treatment in the solid phase.

REFERENCES:
patent: 3617225 (1971-11-01), Kuehne
patent: 3900527 (1975-08-01), King et al.
patent: 4058507 (1977-11-01), Omoto et al.
patent: 4064112 (1977-12-01), Rothe et al.
patent: 4133801 (1979-01-01), Morimatsu et al.
patent: 4223128 (1980-09-01), Halek et al.
patent: 4234708 (1980-11-01), Edelman et al.
patent: 4745174 (1988-05-01), Pruett et al.

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