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Title: Dual cure low-VOC coating process: Phase 3. Semi-annual technical progress report, October 1992--March 31, 1993

Technical Report ·
DOI:https://doi.org/10.2172/10104876· OSTI ID:10104876

Objective of Phase 3 is to complete proof-of-principle testing in full-scale systems of the dual cure photocatalyst technology developed in earlier phases. Phase 3 commercial applications are aerospace topcoats, aerospace primers, and solventless manufacture of tape backings. Progress was made in improving urethane/acrylate formulation for aerospace topcoats, particularly in reverse impact, initial gloss, and loss retention during accelerated weathering. Formulations have now been developed which meet all initial criteria; the formulation was optimized. Aerospace primer formulations based on epoxy/flexibilizer systems were evaluated. Because of cure consistency problems and the increased need for non-chromated primers, work on aerospace primer system was de-emphasized to allow greater effort on development and commercialization of aerospace topcoat. Work on solventless backing saturants for electrical tape backings has been completed; optimal dual cure resin formulations have been used in preparing complete tape constructions.

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:
10104876
Report Number(s):
DOE/ID/12692-5; ON: DE94003202; BR: ED0102000/ED0114000
Resource Relation:
Other Information: PBD: Nov 1993
Country of Publication:
United States
Language:
English