Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Treating polymer containing material or treating a solid...
Patent
1996-02-14
1997-07-15
Acquah, Samuel A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Treating polymer containing material or treating a solid...
528274, 528279, 528283, 528481, 5284905, 528503, 525437, 524755, 524783, 524784, C08F 600, C08J 300
Patent
active
056484542
ABSTRACT:
A process for making high ductile and high melting point polyesters comprising the step of contacting macrocyclic copolyester oligomers having structural units with C.sub.4 alkylene bridging radicals and structural units with bridging radicals other than C.sub.4 alkylenes, and a polymerization catalysts.
REFERENCES:
patent: 5039783 (1991-08-01), Brunelle et al.
patent: 5300590 (1994-04-01), Cook et al.
patent: 5386037 (1995-01-01), Takekoshi et al.
patent: 5466744 (1995-11-01), Evans et al.
Acquah Samuel A.
General Electric Company
Pittman William H.
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