Emulsion particles as reinforcing fillers

Details Emulsion particles as reinforcing fillers Emulsion particles as reinforcing fillers

2007-05-15

2007-05-15

Nutter, Nathan M. (Department: 1711)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S319000, C526S326000, C526S332000, C526S335000, C526S336000, C526S340000, C526S345000

Reexamination Certificate

active

10827747

ABSTRACT:
A rubber composition having improved processability and which provides a vulcanized rubber exhibiting excellent wear resistance and good tensile strength to service temperatures of up to about 150° C. The composition comprises (1) a crosslinked polymer particle having as repeat units (a) up to about 25% of a conjugated diene unit, (b) at least 70% of an aromatic vinyl unit, (c) about 15% to about 30% of a crosslinking monomer, and (d) about 0.1 to about 30% of a monomer unit having one polymerizable unsaturated group and at least one functional group; and, (2) a non-crosslinked host polymer comprised of at least one member of the group consisting of a polymer having only conjugated diene repeat units, a polymer having repeat units of a conjugated diene unit and an aromatic vinyl unit, a polymer having repeat units of a conjugated diene unit and an α-β-unsaturated nitrile unit, an acrylic rubber, a polymer having repeat units of an ethylene unit, and polymers having repeat units having functional groups able to interact with a functional group of the functionalized monomer.

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