Loading patent…
AssigneesDow Global Technologies LLC, Nor-Skilt
InventorsSelim Yalvac, Teresa Karjala, Robert A. Dubois, Mark W. Murphy, Stein Dietrichson, Bjorn Nossen, Ingvild J. B. Stene
Estimating the term…
The subject invention pertains to thermoplastic marking compositions comprising a binder, which in turn comprise at least one homogeneous polymer. Accordingly, the subject invention provides a thermoplastic marking composition comprising: (a) from 10 to 80 weight percent of a binder, which in turn comprises: (i) from 1 to 99 weight percent of at least one homogeneous polymer; (ii) from 5 to 70 weight percent of at least one tackifier; (iii) from 0 to 10 weight percent of a polyethylene which has pendant acid functionality moieties of a non-functionalized wax; and (iv) from 0 to 20 weight percent of a plasticizer; and (b) from 20 to 90 weight percent of an inorganic filler. The subject formulations are usefully applied via spray, screed, and extrusion techniques.
A thermoplastic marking composition comprising:
The thermoplastic marking composition of any of the preceding claims, which is characterized as having a melt viscosity at 350° F. (177° C.) of from 4000 to 7000 centipoise (40 to 70 grams/cm·second), a needle penetration of from 5 to 120 s/10 mm, a luminance factor of at least 75, and an adhesion of at least 1.3 N/mm2.
The thermoplastic marking composition of any of the preceding claims, which is characterized as having a melt viscosity at 350° F. (177° C.) of from 2000 to 5000 centipoise (20 to 50 grams/cm·second), a needle penetration of from 5 to 120 s/10 mm, a luminance factor of at least 75, and an adhesion of at least 1.3 N/mm2.
The thermoplastic marking composition of any of the preceding claims, which is characterized as having a melt viscosity at 350° F. (177° C.) of from 10,000 to 14,000 centipoise (100 to 140 grams/cm·second), a needle penetration of at least 60 s/10 mm, a luminance factor of at least 75, and an adhesion of at least 1.3 N/mm2.
The thermoplastic marking composition of any of the preceding claims, which is characterized as having a melt viscosity at 350° F. (177° C.) of from 4000 to 9000 centipoise (40 to 90 grams/cm·second), a needle penetration of from 5 to 120 s/10 mm, a luminance factor of at least 75, and an adhesion of at least 1.3 N/mm2.
A method of marking a road, comprising:
Dependencies are inferred from the claim text.
Drawings are temporarily unavailable. Open the PDF at USPTO
From the US filing history. Foreign family members aren’t listed.
With unsaturated hydrocarbons only containing four or more carbon atoms: with aliphatic 1-olefins containing one carbon-to-carbon double bond
Use of inorganic substances as compounding ingredients: characterized by their specific function
Use of organic ingredients: hydrocarbons
Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced ; Filling pastes:…
Term ended 12 Jun 2020 (estimated)
USPTO file history isn’t available for this patent, so only indexed dates are shown.
The subject invention pertains to thermoplastic marking compositions. In particular, the subject invention pertains to thermoplastic marking compositions comprising a binder, which in turn comprise at least one homogeneous polymer.
Thermoplastic marking formulations which comprise inorganic fillers bound by a polymeric binder are known in the art.
PCT Publication WO9623845 discloses a thermoplastic adhesive composition suitable for use as a road-marking, which comprises a silane-modified petroleum resin containing 0.05 to 1.0 weight percent silane functionality, extender oil and/or plasticizer, pigment and filler. The adhesive composition is said to provide improved adhesion of glass beads to road surfaces for improved endurance.
The following examples are provided to illustrate typical embodiments of the invention, and are not intended to serve as limits as to its scope.
The homogeneous ethylene polymers are prepared in accordance with the procedure of PCT Publication WO 97/26287, which is equivalent to U.S. patent application Ser. No. 08/784,683, filed on Jan. 22, 1997.
The procedure for the preparation of Polymer A is set forth as follows: