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
2006-06-23
2010-06-22
Choi, Ling-Siu (Department: 1796)
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...
C524S240000
Reexamination Certificate
active
07741398
ABSTRACT:
Compositions comprising (i) a crystalline, isotactic propylene homopolymer, (ii) an ethylene/α-olefin elastomeric impact modifier, and (iii) a reinforcing grade of filler, for example, talc. The crystalline isotactic propylene homopolymer has a flex modulus of greater than about 1930 MPa and a heat deflection temperature (HDT) of greater than about 100° C.; the ethylene/α-olefin interpolymer has a Tg of less than about −30° C., and a tan delta measured at 0.1 radians/s at 190° C. of less than about 2; and the filler has a HDT reinforcing efficiency of at least about 2. The composition has an HDT of greater than about 100° C. and a flex modulus of greater than about 1930 MPa.
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Chin Hui
Choi Ling-Siu
Dow Global Technologies Inc
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