ADL Chronicles -- The EPCON Plastic Pencil
This posting has been moved to a separate blog – ADL Chronicles. Please click on the link to get there.
The EPCON Plastic Pencil
This journal will be a spot for me to comment about the world of ophthalmics and medical lasers. I intend to publish some of the more than 150 articles and columns that I have written on these subjects. In addition, I will report on the latest information on new drugs and devices for the treatment of retinal diseases, including age-related macular degeneration (AMD).
This posting has been moved to a separate blog – ADL Chronicles. Please click on the link to get there.
6 Comments:
Hi,
Do you still help out manufacturers of plastic pencil to improve their recipes with a view to match the charecteristics of plastic pencil with that of a wodden?
Riz,
That work was done in the early 1970s. I am now retired and no longer have access to a lab or the materials that would be needed to carry out such work.
Irv Arons
Many thanks for your prompt response, Can you share with me the last working recipe?
If you look up the patents, they both give the approximate formulas that we used to make the pencil sheath.
I'm afrain the link for the second patent isn't working right now, and I haven't been able to fix it, but if you go to my other blog -- ADL Chronicles (http://adlittlechronicles.blogspot.com
I believe the links are working.
Irv Arons
Why are the epcon process pencils not available in us anywhere?I have looked in every possible store.One would think, in our enviromentaly aware society,the epcon would be around everywhere.
thanks,
Eric
Eric, our work for Empire Pencil was done in the early 1970s. The company did produce the pencils for several years, but Empire was bought by another pencil company and ceased production of the Epcon pencils.
Plastic pencils are still made in Asia, but I'm not sure why they are not marketed in the U.S.
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