Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
2005-11-01
2005-11-01
Acquah, Samuel A. (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
C524S175000, C524S178000, C524S399000, C524S400000, C524S413000, C524S442000, C524S783000, C524S744000, C524S789000
Reexamination Certificate
active
06960626
ABSTRACT:
The invention provides intimate physical mixtures of macrocyclic polyester oligomer (MPO) and filler, as well as methods for their preparation and use. Improved dispersion of filler in a polymer matrix is achieved upon polymerization, and larger amounts of filler with high aspect ratio can be used. In one aspect, the invention provides mixtures of MPO with magnesium silicate. In another aspect, the invention provides a mixture of MPO, filler, and polymerization catalyst as a one-part, ready-to-polymerize material with a long shelf life. The one-part material can be used, for example, in the manufacture of parts without modification of existing processing equipment.
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Bahr Steven R.
Takekoshi Tohru
Winckler Steven J.
Acquah Samuel A.
Cyclics Corporation
Goodwin & Procter LLP
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