Dual cure solventless coating process
The objective of 3M's contract is to develop Dual Cure Photocatalyst technology for the reduction of gaseous waste emissions through the minimization of coating solvent use. This is to be accomplished by developing a photocuring technology that would allow the use of solvent free (100% solids) formulations while preserving or improving upon the performance of conventional solvent based materials. Phase II focused on development of the engineering steps required to transfer this technology from the laboratory to pilot plant scale applications. Preparation of commercially significant quantities of photocatalyst was demonstrated in this phase. Dual cure target Applications were also evaluated. These utilized both urethane/acrylate and epoxy/acrylate compositions. The ability to cure both clearcoat and pigmented compositions in air with visible light under mild conditions has been shown. The cured materials were evaluated for their physical properties and enhanced performance was observed in comparison to the separate components. Significant reduction in volatile organic compound (VOC) emissions has been shown. In selected applications a reduction in VOC from 650 gm/L to less than 100 gm/L may be achieved. The chemistry of catalyst activation was also explored. Cost, economic and energy analyses conducted during Phase I, were updated based on the new information obtained in Phase II.
- Research Organization:
- Minnesota Mining and Mfg. Co., St. Paul, MN (United States). Corporate Research Labs.
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-88ID12692
- OSTI ID:
- 7002202
- Report Number(s):
- DOE/ID/12692-2; ON: DE93001351
- Country of Publication:
- United States
- Language:
- English
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Dual cure solventless coating process. Phase 1, Final report
Dual cure solventless coating process
Related Subjects
COATINGS
SOLVENTS
AIR POLLUTION CONTROL
MINIMIZATION
ACRYLATES
CURING
ORGANIC SOLVENTS
PROGRESS REPORT
CARBOXYLIC ACID SALTS
CONTROL
DOCUMENT TYPES
POLLUTION CONTROL
320305* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Industrial Waste Management