Dual cure photocatalyst systems
The 3M Dual Core process is a method for producing radiation cured polymer compositions via a solventless coating process. The process involves the simulations cure of two different monomer types. The first type may be either an epoxy monomer, or the polyol and polyisocyanate precursors to a urethane polymer. These are polymerized by use of an iron based organometallic photocatalyst which gives a Lewis acid upon irradiation. The second monomer type consists of acrylate monomers, which are polymerized via a free radical photoinitiator to give acrylate polymers. The two polymerization types procede separately to give substantially independent, interpenetrating polymer networks. The properties of the resulting Dual Cure compositions are often found to be superior to either component alone. The objective of the Dual Cure program is to eliminate solvents from coating composition, while simultaneously maintaining or improving the physical properties of the coating and the processing conditions used to prepare them. This will lead to reductions in solvent use, with a resulting reduction in energy consumption and solvent emissions. 9 figs.
- 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:
- AC07-88ID12692
- OSTI ID:
- 5617309
- Report Number(s):
- EGG-M-90520; CONF-901285-4; ON: DE91014174
- Resource Relation:
- Conference: USAF/DOE workshop on solvent substitution, Phoenix, AZ (United States), Dec 1990
- Country of Publication:
- United States
- Language:
- English
Similar Records
Dual cure solventless coating process
Dual cure photocatalyst systems
Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
COATINGS
SYNTHESIS
CATALYSTS
ENERGY CONSUMPTION
IRON
POLYACRYLATES
POLYMERIZATION
RADIATION CURING
SOLVENTS
TENSILE PROPERTIES
URETHANE
CARBAMATES
CARBONIC ACID DERIVATIVES
CARBOXYLIC ACID SALTS
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
CURING
ELEMENTS
ESTERS
MECHANICAL PROPERTIES
METALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
POLYMERS
POLYVINYLS
RADIATION CHEMISTRY
RADIATION EFFECTS
TRANSITION ELEMENTS
360601* - Other Materials- Preparation & Manufacture
400500 - Photochemistry