Protective system for concrete sewer applications

Details Protective system for concrete sewer applications Protective system for concrete sewer applications

2005-12-01

2009-10-13

Barr, Michael (Department: 1792)

Coating processes

Coating remains adhesive or is intended to be made adhesive

C428S143000, C427S230000, C427S236000, C427S140000, C427S142000, C118S317000

Reexamination Certificate

active

07601390

ABSTRACT:
This invention relates to a method of protecting concrete sewer pipe, manholes, lift stations, pump stations, wet wells, sewage treatment plant components, and septic tanks and/or septic tank components comprising coating said concrete items by rolling, spraying, or brushing on a coating system consisting essentially of a primer, intermediate coat and topcoat. Each coat is a polymeric coating prepared in situ by combining a hardener with a prepolymer formulation. The pepolymer is an amine-containing material, resulting in a polyurea-based coating. The chief advantages of the coating are that it can be applied utilizing conventional, simple equipment, and the increased drying time allows for excellent adhesion on the substrate. Also, it is a tough elastomeric material resistant to attack by water or the sulfuric acid microbial metabolic end-product.

REFERENCES:
patent: 4265957 (1981-05-01), Severance et al.
patent: 4581433 (1986-04-01), Potter et al.
patent: 5405218 (1995-04-01), Hyde-Smith
patent: 5415499 (1995-05-01), Hyde-Smith et al.
patent: 5879501 (1999-03-01), Livingston
patent: 6005062 (1999-12-01), Hansen et al.
patent: 6369189 (2002-04-01), Naderhof et al.
patent: 6451874 (2002-09-01), Purgett et al.
patent: 6632475 (2003-10-01), Bleggi
patent: 6730353 (2004-05-01), Robinson
patent: 7189429 (2007-03-01), Robinson
patent: 7279196 (2007-10-01), Hume
patent: WO98/37929 (1998-09-01), None
Anonymous, Bayer MaterialScience “The Chemistry of Polyurethane Coatings”, Brochure pp. through 3 only included. File on CD.
O'Malley, Cynthia L. KTA-Tator, Inc. “Polyurea Coatings. If You Knew What Could Go Wrong . . . ” URL http:://www.ktat.com/knowledge/PACE2005/Polyurea%20Coatings%20CLO.pdf SA CD.
Natarajan, A “Polyurea-based Elastomeric Coating: The Wonder Coating”, publ May 24, 2005, web article. File on CD.

Affiliated with

Also associated with

Rating

Protective system for concrete sewer applications does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Protective system for concrete sewer applications, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Protective system for concrete sewer applications will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4079138