Coating processes – Particles – flakes – or granules coated or encapsulated
Reexamination Certificate
2005-10-20
2009-06-09
Gulakowski, Randy (Department: 1796)
Coating processes
Particles, flakes, or granules coated or encapsulated
C427S215000, C427S220000
Reexamination Certificate
active
07544387
ABSTRACT:
The invention is directed to a thermoplastic condensation polymer chain extender additive package for reducing the molecular weight loss of a thermoplastic condensation polymer during a heated process comprising a chain extender composition selected from the group consisting of (a) a mixture of a chain extending agent and a water-bearing particulate material (b) a water-bearing particulate material surface treated with a chain extending agent or (c) a combination of (a) and (b). The water-bearing particulate material can be titanium dioxide pigment, the chain extending agent can be a multifunctional epoxy compound and the condensation polymer can be polyethylene terephthalate, polybutylene terephthalate or polycarbonate.
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Gulakowski Randy
Loewe Robert
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