PROGRAM MANAGER: Jonathan Jakischa
To be determined based on technology proposed – may include technology licensing, product acquisition, contract research, or joint development
Phase 1 – Proof of concept in 6-12 months Phase 2 – Engineering optimization in 6-12 months
Phase 1 – Proof of concept funding commensurate with proposed activity
SOLUTION PROVIDER HELP DESK:
NineSigma, representing Covestro, a global leader in high performance polymers, invites proposals for innovative approaches to alleviate CO2 bubbles in moisture-cured polyurethane coatings. These approaches could take the form of new chemistry or additives.
Covestro produces resins for moisture-cured polyurethane (PUR) coatings used in a variety of applications, including for the protection of bridges and other structures. These single component coatings, frequently applied by sprayer or by roller, are currently applied in films up to a maximum of 100 microns dry film thickness to prevent corrosion from damaging the underlying metal structure. Ideally, applications of up to 200 microns dry film thickness are sought.
As these coatings cure, the isocyanates within the PUR react with atmospheric water to create carbon dioxide. The CO2 can remain within the PUR film in the form of bubbles, negatively impacting the physical and mechanical properties, which reduces the corrosion resistance of the coating.
When applying PUR coatings in corners, on complex shapes such as I-beams, or on bridges, it can be difficult to accurately and effectively coat the surface with less than 100 microns dry film thickness of PUR. As the film thickness increases, so does the likelihood of bubble formation and entrapment within the film.
Figure 1: a lab sample demonstrating the appearance CO2 bubbles
Covestro seeks new approaches to mitigate or eliminate these CO2 bubbles from PUR coatings.
Anticipated Project Phases or Project Plan
Phase 1 – Proof of Concept
Evaluation of proposed technology in an unpigmented resin at 150 – 200 microns dry film thickness cured at 100°F / 80% RH
Phase 2 – Engineering Optimization
Evaluation of proposed technology in a pigmented topcoat resin at 150 – 200 microns dry film thickness cured at 100°F / 80% RH
Criteria for Moving from Phase 1 to Phase 2
Client will consider for advancement an approach that meets performance criteria with acceptable economics and pathway to commercialization.
The successful technology will:
Possible approaches might include, but are not limited to:
The following approaches are not of interest:
To respond, please make sure you are registered in NineSights, as it will prompt you to log in. Then, use the Response options at the top or bottom of the page. You may submit supplemental files in addition to your completed response form.
Appropriate responses will use the response form and address the following:
Other Request information includes:
APPROPRIATE RESPONSES TO THIS REQUEST
Responses from companies (small to large), academic researchers, other research institutes, consultants, venture capitalists, entrepreneurs, or inventors are welcome. For example:
You represent a company or university that has demonstrated a proof of concept.
You represent a company or university that has reduced method to practice at lab scale.
You represent a company or university that has developed a method for use at pilot scale.
You represent a company or university that has demonstrated a method ready for implementation at industrial scale.
You represent a university research department that has a bench-scale demonstration ready to adapt.
You represent a university research department that has an undeveloped pathway with a high probability of success.