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US 11,118,316 B2Granted
Thermoplastic composition for sealing roadway joints
AssigneeEnnis-Flint, Inc.
InventorsVincent Wilkins, Maxwell Heavner, Paul Seropian, Scott Williams, Scott Seeley, Mark Kennedy
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Abstract
Thermoplastic compositions useful for sealing longitudinal joints of substrates, for example, roadways and pavement, are provided herein. Formulations including the composition and methods of using the thermoplastic composition to seal longitudinal joints are also disclosed.
Claims19
A thermoplastic composition comprising:
- 2 to 30 wt. % polyamide resin;
- up to 40 wt. % modified rosin ester;
- up to 40 wt. % modified gum rosin;
- 0.1 to 10 wt. % pigment;
- up to 20 wt. % wax;
- less than 10 wt. % plasticizer;
- and
- 5 to 90 wt. % of at least one inorganic filler,
- wherein the pigment is carbon black.
6 more elements
A thermoplastic composition comprising:
- 2 to 30 wt. % polyamide resin;
- up to 40 wt. % modified rosin ester;
- up to 40 wt. % modified gum rosin;
- 0.1 to 10 wt. % pigment;
- up to 20 wt. % wax;
- less than 10 wt. % plasticizer;
- and
- 5 to 90 wt. % of at least one inorganic filler,
- wherein the pigment is carbon black, and
- wherein the thermoplastic composition is applied to a roadway comprising a first asphalt and a second asphalt to form a barrier over a longitudinal joint that is substantially parallel to and located between the first asphalt and the second asphalt, wherein the thermoplastic composition seals an edge between the first asphalt and the second asphalt from deterioration.
7 more elements
A method of sealing roadway joints with a thermoplastic composition, the method comprising:
- adding a wax to a vessel;
- adding a polyamide resin to the vessel;
- adding a plasticizer to the vessel;
- adding at least one of a modified rosin ester or a modified gum rosin to the vessel;
- adding a pigment comprising carbon black to the vessel;
- adding at least one inorganic filler to the vessel;
- mixing the composition;
- heating the vessel to 340° F. to 450° F.;
- and
- applying the composition to a roadway to seal a roadway joint.
7 more elements
A method of sealing roadway joints, the method comprising:
- heating a thermoplastic composition to 340° F. to 450° F.,
- wherein the thermoplastic composition comprises:
- 2 to 30 wt. % polyamide resin;
- up to 40 wt. % modified rosin ester;
- up to 40 wt. % modified gum rosin;
- 0.1 to 10 wt. % pigment;
- up to 20 wt. % wax;
- less than 10 wt. % plasticizer;
- and
- 5 to 90 wt. % of at least one inorganic filler,
- wherein the thermoplastic composition is mixed during the heating, wherein the mixing is performed by at least one of auger, agitation, or recirculation, and wherein the pigment comprises carbon black;
- and
- applying the heated thermoplastic composition to an asphalt roadway joint of an asphalt roadway, wherein the thermoplastic composition is applied by extruding, spraying, or other application means to the asphalt roadway joint, wherein the asphalt roadway joint comprises a longitudinal joint that is substantially parallel to and located between adjacent lanes of the asphalt roadway.
10 more elements
Dependencies are inferred from the claim text.