Method for making asphalt compositions and substrates coated therewith having improved properties

1. A process for making a hot melt blend composition to coat substrates comprising forming a hot melt blend of components consisting of

a. an asphalt material up to about 85% by weight of the total composition wherein the asphalt material is a de-asphaltized grade asphalt;

b. a polymer that is not a polyol selected from the group consisting of a natural rubber, a synthetic rubber, a thermoplastic rubber, a styrene butadiene styrene (SBS), an ethylene vinyl acetate (EVA), a thermoplastic polymer, an acrylic polymer, a polyurethane polymer, a styrenated-acrylic polymer, a styrene/butadiene copolymer, an EPDM copolymer, atactic polypropylene and mixtures thereof; and

c. a polyol selected from the group consisting of a polyether polyol, a natural polyol, a polyester polyol and mixtures thereof;

wherein the polyol has a molecular weight of about 1000 to about 5000 and the polyol is present in an amount no greater than about 30% by weight of the total composition.

2. A process for making a hot melt blend composition to coat substrates comprising forming a hot melt blend of components consisting of

a. an asphalt material up to about 85% by weight of the composition wherein the asphalt material is a de-asphaltized grade asphalt;

b. a polymer that is not a polyol selected from the group consisting of a natural rubber, a synthetic rubber, a thermoplastic rubber, a styrene butadiene styrene (SBS), an ethylene vinyl acetate (EVA), a thermosetting polymer, an acrylic polymer, a polyurethane polymer, a styrenated-acrylic polymer, a styrene/butadiene copolymer, an EPDM copolymer, atactic polypropylene and mixtures thereof; and

c. a polyol selected from the group consisting of pentaerythritol, ethylene glycol, glycerin, polyethylene glycol, polypropylene glycol, and poly(tetramethylene ether) glycol, polypropylene glycol, polyethylene nonyl phenol, and hydroxyl-terminated polybutadiene and any mixtures thereof;

wherein the polyol is present in an amount no greater than about 30% by weight of the total composition.

3. The process of claim 1 , wherein the polyol is present in an amount no greater than about 10% by weight of the total composition.

4. The process of claim 2 , wherein the polyol is present in an amount no greater than about 10% by weight of the total composition.

5. The process of claim 1 , wherein the polymer is present in the composition in an amount of no greater than about 40% by weight.

6. The process of claim 2 , wherein the polymer is present in the composition in an amount of no greater than about 40% by weight.

7. A process for making a hot melt blend composition to coat substrates comprising forming a hot melt blend of components consisting of

a. an asphalt material up to about 85% by weight of the total composition wherein the asphalt material is a de-asphaltized grade asphalt;

b. a polymer that is not a polyol selected from the group consisting of a natural rubber, a synthetic rubber, a thermoplastic rubber, a styrene butadiene styrene (SBS), an ethylene vinyl acetate (EVA), a thermoplastic polymer, an acrylic polymer, a polyurethane polymer, a styrenated-acrylic polymer, a styrene/butadiene copolymer, an EPDM copolymer, atactic polypropylene and mixtures thereof;

c. a polyol selected from the group consisting of a polyether polyol, a natural polyol, a polyester polyol and mixtures thereof;

d. a filler;

wherein the polyol has a molecular weight of about 1000 to about 5000 and the polyol is present in an amount no greater than about 30% by weight of the total composition.

8. The process of claim 7 , wherein the filler is selected from the group consisting of bentonite, laponite, saponite, nontronite, montmorillonite, and a titanate compound.

9. A process for making a hot melt blend composition to coat substrates comprising forming a hot melt blend of components consisting of

a. an asphalt material up to about 85% by weight of the composition wherein the asphalt material is a de-asphaltized grade asphalt;

b. a polymer that is not a polyol selected from the group consisting of a natural rubber, a synthetic rubber, a thermoplastic rubber, a styrene butadiene styrene (SBS), an ethylene vinyl acetate (EVA), a thermosetting polymer, an acrylic polymer, a polyurethane polymer, a styrenated-acrylic polymer, a styrene/butadiene copolymer, an EPDM copolymer, atactic polypropylene and mixtures thereof;

c. a polyol selected from the group consisting of pentaerythritol, ethylene glycol, glycerin, polyethylene glycol, polypropylene glycol, and poly(tetramethylene ether) glycol, polypropylene glycol, polyethylene nonyl phenol, and hydroxyl-terminated polybutadiene and any mixtures thereof;

d. a filler; and

wherein the polyol is present in an amount no greater than about 30% by weight of the total composition.

10. The process of claim 9 , wherein the filler is selected from the group consisting of bentonite, laponite, saponite, nontronite, montmorillonite, and a titanate compound.

11. A coated article comprising a substrate coated with a layer of the hot melt blend composition formed according to the process of claim 1 .

12. The coated article of claim 11 , wherein the substrate is selected from the group consisting of a road bed and a building material.

13. The coated article of claim 12 , wherein the building material is in the form of a shingle, a roof underlayment, a wall board, a window frame, a board, a door, a building exterior wall, a building interiors wall, and a building wrap.

14. A coated article comprising a substrate coated with a layer of the hot melt blend composition formed according to the process of claim 2 .

15. The coated article of claim 14 , wherein the substrate is selected from the group consisting of a road bed and a building material.

16. The coated artical of claim 15 , wherein the building material is in the form of a shingle, a roof underlayment, a wall board, a window frame, a board, a door, a building exterior wall, a building interiors wall, and a building wrap.

17. A method of improving flexibility at temperatures below 0.° C. of a cured asphalt coating comprising a hot melt blend composition prepared according to the process of claim 1 wherein a coating layer of the hot melt blend when cured on a substrate exhibits improved flexibility as compared to an asphalt composition that does not contain a polyol.

18. A method of improving flexibility at temperatures below 0.° C. of a cured asphalt coating comprising a hot melt blend composition prepared according to the process of claim 2 wherein a coating layer of the hot melt blend when cured on a substrate exhibits improved flexibility as compared to an asphalt composition that does not contain a polyol.

19. A method of improving the processability of an asphalt material comprising forming a hot melt blend composition according to the process of claim 1 wherein the resultant composition exhibits improved processability as compared to an asphalt composition that does not contain a polyol.

20. A method of improving the processability of an asphalt material comprising forming a hot melt blend composition according to the process of claim 2 wherein the resultant composition exhibits improved processability as compared to an asphalt composition that does not contain a polyol.

21. A process for applying a substantially waterproof coating to a substrate or surface, comprising preparing the hot melt blend composition according to the process of claim 1 , applying the composition to the surface or substrate and curing, thereby forming a coating layer.

22. A process for applying a substantially waterproof coating to a substrate or surface, comprising preparing the hot melt blend composition according to the process of claim 2 , applying the composition to the surface or substrate and curing, thereby forming a coating layer.

23. A process of forming a waterproofing film comprising, preparing the hot melt blend composition according to the process of claim 1 , applying the composition to a detachable surface and drying, thereby forming a film, and detaching the film from the detachable surface.

24. A process of forming a waterproofing film comprising, preparing the hot melt blend composition according to the process of claim 2 , applying the composition to a detachable surface and drying, thereby forming a film, and detaching the film from the detachable surface.