This invention involves the addition of ester bottoms to an asphalt paving composition to improve the usable temperature range (UTR). The ester bottoms are a byproduct of refining a feedstock containing all or a portion of vegetable oil or animal fat.

This invention involves the addition of ester bottoms to an asphalt paving composition to improve the usable temperature range (UTR). The ester bottoms are a byproduct of refining a feedstock containing all or a portion of vegetable oil or animal fat.

Some embodiments of the present disclosure relate to a method comprising mixing at least one compatibilizer precursor with at least one polymer, so as to result in a polymer concentrate and mixing the polymer concentrate with asphalt, so as to result in a polymer modified asphalt (“PMA”). Some embodiments of the present disclosure relate to formulations comprising a compatibilizer precursor, a polymer concentrate, PMA, or any combination thereof.

Some embodiments of the present disclosure relate to a method comprising mixing at least one compatibilizer precursor with at least one polymer, so as to result in a polymer concentrate and mixing the polymer concentrate with asphalt, so as to result in a polymer modified asphalt (“PMA”). Some embodiments of the present disclosure relate to formulations comprising a compatibilizer precursor, a polymer concentrate, PMA, or any combination thereof.

Some embodiments of the present disclosure relate to a method comprising mixing at least one compatibilizer precursor with at least one polymer, so as to result in a polymer concentrate and mixing the polymer concentrate with asphalt, so as to result in a polymer modified asphalt (“PMA”). Some embodiments of the present disclosure relate to formulations comprising a compatibilizer precursor, a polymer concentrate, PMA, or any combination thereof.

Asphalt product made from or containing Z1) from 90 wt % to 98 wt % of mineral aggregate; and Z2) from 2 wt % to 10 wt % of a bitumen composition made from or containing T1) from 99 wt % to 75 wt % of bitumen, and T2) from 1 wt % to 25 wt % of a polymer composition made from or containing A) 5-35% by weight of a propylene homopolymer; B) 20-50% by weight of an ethylene homopolymer; and C) 30-60% by weight of a terpolymer of ethylene, propylene and 1-butene derived units.

Asphalt product made from or containing Z1) from 90 wt % to 98 wt % of mineral aggregate; and Z2) from 2 wt % to 10 wt % of a bitumen composition made from or containing T1) from 99 wt % to 75 wt % of bitumen, and T2) from 1 wt % to 25 wt % of a polymer composition made from or containing A) 5-35% by weight of a propylene homopolymer; B) 20-50% by weight of an ethylene homopolymer; and C) 30-60% by weight of a terpolymer of ethylene, propylene and 1-butene derived units.

Asphalt product made from or containing Z1) from 90 wt % to 98 wt % of mineral aggregate; and Z2) from 2 wt % to 10 wt % of a bitumen composition made from or containing T1) from 99 wt % to 75 wt % of bitumen, and T2) from 1 wt % to 25 wt % of a polymer composition made from or containing A) 5-35% by weight of a propylene homopolymer; B) 20-50% by weight of an ethylene homopolymer; and C) 30-60% by weight of a terpolymer of ethylene, propylene and 1-butene derived units.

The present invention provides an asphalt composition obtained by blending an asphalt and an addition polymerization-type polymer, the addition polymerization-type polymer having a hydroxyl value of 10 mgKOH/g or more and 60 mgKOH/g or less and having a weight average molecular weight (M.sub.w) of 2,500 or more and 70,000 or less.

The present invention provides an asphalt composition obtained by blending an asphalt and an addition polymerization-type polymer, the addition polymerization-type polymer having a hydroxyl value of 10 mgKOH/g or more and 60 mgKOH/g or less and having a weight average molecular weight (M.sub.w) of 2,500 or more and 70,000 or less.