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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9631088 B1

PDFFull Text
Date of Patent:
Apr. 25, 2017

Filed:

Dec. 21, 2010

Composite pavement structures

Applicants:

David K. Bower, Canton, MI (US);

Steven Hicks, Brownstown, MI (US);

Melissa Terry, Brooklyn, NY (US);

Nicholas A. Foley, Dearborn, MI (US);

Calvin T. Peeler, Canton, MI (US);

William Handlos, Manitowoc, WI (US);

Inventors:

David K. Bower, Canton, MI (US);

Steven Hicks, Brownstown, MI (US);

Melissa Terry, Brooklyn, NY (US);

Nicholas A. Foley, Dearborn, MI (US);

Calvin T. Peeler, Canton, MI (US);

William Handlos, Manitowoc, WI (US);

Assignee:

BASF SE, Ludwigshafen, DE;

Attorney:

Howard & Howard Attorneys PLLC

Primary Examiner:

Abigail A Risic

Int. Cl.
CPC ...
C04B 26/16 (2006.01); C04B 14/22 (2006.01); C08L 75/04 (2006.01); C03C 12/00 (2006.01); C03C 17/30 (2006.01); C03C 17/34 (2006.01); C04B 20/10 (2006.01); C08K 3/34 (2006.01); C08K 3/40 (2006.01); C08L 21/00 (2006.01); C04B 111/00 (2006.01); C04B 111/60 (2006.01);
U.S. Cl.
CPC ...
C08L 75/04 (2013.01); C03C 12/00 (2013.01); C03C 17/30 (2013.01); C03C 17/3405 (2013.01); C04B 20/1051 (2013.01); C04B 26/16 (2013.01); C08K 3/34 (2013.01); C08K 3/40 (2013.01); C08L 21/00 (2013.01); C04B 2111/0075 (2013.01); C04B 2111/00284 (2013.01); C04B 2111/00293 (2013.01); C04B 2111/60 (2013.01); Y10T 428/249984 (2015.04); Y10T 428/25 (2015.01); Y10T 428/31551 (2015.04);
Abstract

A composite pavement structure comprises a wearing course layer and a base course layer disposed below the wearing course layer. The wearing course layer comprises aggregate, e.g. glass and rock, and an elastomeric composition. The elastomeric composition comprises the reaction product of an isocyanate component and an isocyanate-reactive component. The isocyanate component comprises a polymeric isocyanate, and optionally, an isocyanate-prepolymer. The isocyanate-reactive component comprises a hydrophobic polyol and a chain extender having at least two hydroxyl groups and a molecular weight of from about 62 to about 220. The chain extender is present in the isocyanate-reactive component in an amount of from about 1 to about 20 parts by weight based on 100 parts by weight of the isocyanate-reactive component. The base course layer comprises aggregate which is the same or different than the aggregate of the wearing course layer. Methods of forming the composite pavement structure are also disclosed.

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