Plastic and nonmetallic article shaping or treating: processes – Flame contact or reshaping by heat decomposition of work
Reexamination Certificate
2006-03-21
2006-03-21
Staicovici, Stefan (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Flame contact or reshaping by heat decomposition of work
C264S236000, C264S257000, C264S258000, C264S324000, C156S307100, C156S307300
Reexamination Certificate
active
07014803
ABSTRACT:
A composite formed of a polymer matrix phase having a reinforcement phase including polymeric microfibers. The microfibers are preferably formed of a highly oriented polymer, having a high modulus value and a large surface area. The large surface area can serve to tightly bind the microfibers to the polymer matrix phase. The microfibers can be provided as a fully- or partially-microfibrillated film, as a non-woven web of entangled microfibers, or as a pulp having free fibers. The microfibers can be embedded in, or impregnated with, a polymer or polymer precursor. Some composite articles are formed from thermoset resins cured about a highly oriented polypropylene microfiber reinforcement phase, providing a strong, tough, moisture resistant article. One composite includes a matrix and reinforcement formed of the same material type and having substantially equal refractive indices, allowing the composite to be optically clear.
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Hobbs Terry R.
Perez Mario A.
Siedle Allen R.
Swan Michael D.
3M Innovative Properties Company
Kokko Kent S.
Staicovici Stefan
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