Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1995-08-09
1997-01-28
Seidleck, James J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528204, 528240, 528371, 528377, 528378, 528379, C08G 6430
Patent
active
055978878
ABSTRACT:
Blow moldable polycarbonate is produced by first producing a polycarbonate preform by a melt transesterification process. The polycarbonate preform comprises 2.1 to 10 mole percent polyfunctional branching agent, based on the total moles of polycarbonate in the polycarbonate preform. The polycarbonate preform is then melt equilibrated with a second polycarbonate to produce a blow moldable grade.
REFERENCES:
patent: 4366279 (1982-12-01), Tomioka et al.
patent: 4888400 (1989-12-01), Boden et al.
patent: 5097008 (1992-03-01), Krabbenhoft et al.
Colley Alice M.
Dardaris David M.
King, Jr. Joseph A.
McCloskey Patrick J.
Cooney Jr. John M.
General Electric Company
Pittman William H.
Seidleck James J.
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