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Title: Dual cure solventless coating process

Abstract

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.

Authors:
; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Minnesota Mining and Mfg. Co., St. Paul, MN (United States). Corporate Research Labs.
Sponsoring Org.:
USDOE; USDOE, Washington, DC (United States)
OSTI Identifier:
5010075
Report Number(s):
DOE/ID/12692-1
ON: DE92013677
DOE Contract Number:  
AC04-88ID12692
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; EPOXIDES; CURING; INDUSTRY; ENERGY CONSERVATION; SOLVENTS; MATERIAL SUBSTITUTION; ACRYLATES; AIR POLLUTION ABATEMENT; CATALYSTS; COATINGS; GASEOUS WASTES; POLYURETHANES; PROGRESS REPORT; SURFACE COATING; VOLATILE MATTER; CARBOXYLIC ACID SALTS; DEPOSITION; DOCUMENT TYPES; MATERIALS; MATTER; ORGANIC COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; ORGANIC POLYMERS; PETROCHEMICALS; PETROLEUM PRODUCTS; PLASTICS; POLLUTION ABATEMENT; POLYAMIDES; POLYMERS; SYNTHETIC MATERIALS; WASTES; 320305* - Energy Conservation, Consumption, & Utilization- Industrial & Agricultural Processes- Industrial Waste Management; 320302 - Energy Conservation, Consumption, & Utilization- Industrial & Agricultural Processes- Materials

Citation Formats

DeVoe, R J, Palazzotto, M C, Chambers, W L, Brown-Wensley, K A, Holmes, G L, Keipert, S J, Mathis, M D, McCormick, F B, Spurgeon, K M, and Williams, J W. Dual cure solventless coating process. United States: N. p., 1992. Web.
DeVoe, R J, Palazzotto, M C, Chambers, W L, Brown-Wensley, K A, Holmes, G L, Keipert, S J, Mathis, M D, McCormick, F B, Spurgeon, K M, & Williams, J W. Dual cure solventless coating process. United States.
DeVoe, R J, Palazzotto, M C, Chambers, W L, Brown-Wensley, K A, Holmes, G L, Keipert, S J, Mathis, M D, McCormick, F B, Spurgeon, K M, and Williams, J W. Sat . "Dual cure solventless coating process". United States.
@article{osti_5010075,
title = {Dual cure solventless coating process},
author = {DeVoe, R J and Palazzotto, M C and Chambers, W L and Brown-Wensley, K A and Holmes, G L and Keipert, S J and Mathis, M D and McCormick, F B and Spurgeon, K M and Williams, J W},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {2}
}

Technical Report:
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