Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With means applying wave energy or electrical energy...
Reexamination Certificate
1999-03-05
2001-05-22
Ball, Michael W. (Department: 1733)
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With means applying wave energy or electrical energy...
C156S272200, C156S273300, C156S379800, C362S034000, C252S700000, C428S040100, C428S041700
Reexamination Certificate
active
06235148
ABSTRACT:
STATEMENT OF GOVERNMENT INTEREST
The invention described herein may be manufactured and used by or for the Government of the United States of America for governmental purposes without the payment of any royalties thereon or therefor.
BACKGROUND OF THE INVENTION
This invention relates to adhesives for bonding objects together. In particular, this invention relates to curing photo-curable adhesives using light radiated from sources of chemiluminescent light in a variety of environments.
A wide variety of adhesives for joining objects together have been developed for many different tasks. Some adhesives are premixed and, after application, only need to be exposed to air for a while to cure. Others are mixed with catalysts or other compounds to initiate and speed the curing process. Generally speaking, conventional two-part adhesive mixtures have been sluggish and ineffective in cold seawater temperatures.
Adhesive compounds have been developed that initiate curing when they are radiated by light from an electric lamp. The light radiated from the lamps may be not only visible light, but other wavelengths, such as ultraviolet or infrared. Because of the disadvantages associated with radiating light underwater from lamps, contemporary electric light cured adhesives have been largely used in air. Efforts have been made to utilize light from an electrically driven LED (light emitting diode) to cure adhesives, however, this approach uses electrical energy to light the LED's while the adhesive cures. In addition, the use of electrical energy makes curing more expensive and complicated, and requires additional logistical support.
Thus, in accordance with this inventive concept, a need has been recognized in the state of the art for bonding systems that utilize chemiluminescent light sources to cure photo-curable adhesives quickly under water and in air, and do not require any electrical lighting.
SUMMARY OF THE INVENTION
The present invention is directed to providing a bonding system including a source of chemiluminescent light and a photo-curable adhesive cured by the radiated chemiluminescent light.
An object of the invention is to provide a system to cure photo-curable adhesives utilizing chemical sources of light.
Another object of the invention is to provide a system to adhesively bond objects underwater or in air using photo-curable adhesives and no ancillary electrical power.
Another object of the invention is to provide a system utilizing non-electrical sources of light for curing photo-curable adhesives.
Another object of the invention is to provide a system to bond objects under water or in air using fewer components.
Another object of the invention provides bonding using chemical light for producing cure in photo-curable adhesives.
Another object of the invention is to provide a system to cure photo-curable adhesive on demand by initiation of chemiluminescent reaction.
Another object of the invention is to provide a system having chemiluminescent sources of light emitting at different wavelengths of light to cure different photo-curable adhesives.
Another object is to provide systems having photo-curable methacrylate adhesives tunable to chemiluminescent light sources.
Another object of the invention is to provide systems having photo-curable epoxy tunable to chemiluminescent light sources.
Another object of the invention is to provide a system to cure photo-curable adhesive by breaking a membrane in a chemiluminescent module to initiate chemiluminescent reaction.
Another object of the invention is to provide a system to cure photo-curable adhesive mixing one chemical compound with another chemical compound in a chemiluminescent module to initiate chemiluminescent reaction.
Another object of the invention is to provide a system to cure photo-curable adhesive by injecting one chemical compound into another chemical compound in a chemiluminescent module to initiate chemiluminescent reaction.
Another object of the invention is to provide a system to cure photo-curable adhesives in a wide range of environmental conditions with little to no ancillary support.
Another object of the invention is to provide a system to cure photo-curable adhesives using chemically initiated radiation that is inexpensive and expendable.
Another object of the invention is to provide a system for curing photo-curable adhesives with chemically initiated radiation to repair underwater structure, such as the hull of a boat with the photo-curable adhesive.
These and other objects of the invention will become more readily apparent from the ensuing specification when taken in conjunction with the appended claims.
REFERENCES:
patent: 5254197 (1993-10-01), Klems
patent: 5718577 (1998-02-01), Oxman et al.
patent: 5962097 (1999-10-01), Yamamoto et al.
patent: 6007334 (1999-12-01), Suhonen
Courson, Jr. Billy F.
Love Brian
Wood Jody L.
Ball Michael W.
Rossi Jessica
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