C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 19/38 (2006.01) C08L 23/02 (2006.01) C08L 25/06 (2006.01) C08L 101/00 (2006.01)
Patent
CA 2060494
GRP-P-4529 ABSTRACT OF THE DISCLOSURE Polymer composites comprising a matrix of at least one thermopolastic polymer, such as high density polyethyolene, in which at least one liquid crystal polymer, such as a thermotropic wholly aromatic polyester, is substantially uniformly dispersed at a concentration of less than about 2 wt % based on the weight of the polymer composite are prepared by a process comprising blending the thermoplastic polymer with less than about 2 wt % of the liquid crystal polymer at a temperature at which the thermoplastic polymer is molten and the liquid polymer is solid. In one embodiment, the polymer composites are prepared by first blending the thermoplastic polymer with more than about 2 wt % liquid crystal polymer at a temperature at which the thermoplastic polymer is molten and the liquid crystal polymer is solid to form a masterbatch in which the liquid crystal polymer is substantially uniformly dispersed throughout the thermoplastic polymer, and second diluting the concentration of the liquid crystal polymer in the masterbatch to less than about 2 wt % by adding more thermoplastic polymer to the masterbatch again at a temperature at which the thermoplastic polymer is molten and the liquid crystal polymer is solid.
Coffey Gerald P.
Melamud Lucy
Percec Elena S.
Bp America Inc.
Coffey Gerald P.
Gowling Lafleur Henderson Llp
Melamud Lucy
Percec Elena S.
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