Dual cure solventless coating process. Phase 1, Final report
The objective is to determine the feasibility of using the Dual Cure Photocatalyst technology for 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. Four Dual Cure Photocatalyst systems and one conventional catalyst system were investigated for use in curing combinations of epoxies with acrylates and acrylates with polyurethane precursors (polyol/polyisocyanate mixtures). Photocatalyst screening results showed that Dual Cure Photocatalyst Systems based upon cationic organometallic compounds alone or in combination with free radical photoinitiators or oxidants provide significantly better processing performance than systems based upon conventional catalysts or neutral organometallic compounds in combination with oxidants. Mechanical testing of materials prepared with the five catalyst systems showed that: (1) Dual Cure compositions can produce materials with better properties than the component parts and (2) Compositions cured with Dual Cure Photocatalysts produce materials superior to those cured with conventional catalyst systems in a number of cases. Cost, economic and energy analyses are presented based upon laboratory scale coating and curing studies.
- Research Organization:
- Minnesota Mining and Mfg. Co., St. Paul, MN (United States). Corporate Research Labs.
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-88ID12692
- OSTI ID:
- 10139465
- Report Number(s):
- DOE/ID/12692-1; ON: DE92013677
- Resource Relation:
- Other Information: PBD: Feb 1992
- Country of Publication:
- United States
- Language:
- English
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Dual cure solventless coating process
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Related Subjects
SOLVENTS
MATERIAL SUBSTITUTION
EPOXIDES
CURING
INDUSTRY
ENERGY CONSERVATION
PROGRESS REPORT
GASEOUS WASTES
AIR POLLUTION ABATEMENT
VOLATILE MATTER
CATALYSTS
SURFACE COATING
COATINGS
ACRYLATES
POLYURETHANES
320305
320302
INDUSTRIAL WASTE MANAGEMENT
MATERIALS