Epdm-based roofing shingle compositions

Details Epdm-based roofing shingle compositions Epdm-based roofing shingle compositions

C - Chemistry, Metallurgy

08

L

C08L 23/16 (2006.01) C08L 23/04 (2006.01) C08L 23/06 (2006.01) C08L 23/12 (2006.01) C08L 23/08 (2006.01)

Patent

CA 2289057

High durometer, polymeric roofing shingles with varying colors and shades of color may be prepared from a composition of matter comprising 100 parts by weight of a ethylene-propylene-diene (EPDM) terpolymer; from 25 to about 400 parts by weight of at least one non-combustible filler per 100 parts of ethylene- propylene- diene (EPDM) terpolymer; from 0 to about 125 parts by weight of at least one combustible filler, per 100 parts of ethylene-propylene-diene (EPDM) terpolymer; from 0 to about 135 parts by weight of a thermoplastic modifying polymer; from 0 to about parts by weight of reinforcing fibers, per 100 parts of ethylene-propylene- diene (EPDM) terpolymer; from about 20 to about 75 parts by weight of a processing oil per 100 parts of ethylene-propylene-diene (EPDM) terpolymer; and from about 1 to about 6 parts by weight of a sulfur cure package having at least two curing accelerators. Fiber reinforced, high durometer, EPDM-based roofing shingles of the present invention are a suitable replacement for traditional slate, wood or asphalt roofing shingles used to cover sloped roofs. A method is further provided for covering sloped roofs comprising applying a plurality of the fiber reinforced, high durometer EPDM-based roofing shingles of the present invention to a sloped roof in a preselected installation pattern.

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