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#11
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On Thu, 21 Jul 2005, Bruce Chang wrote:
> I'm pretty sure you already know this but you're using R134a and Freon > synonymously in your posts. It should be noted that Freon refers to > R12. That is not correct. "Freon" refers to refrigerants manufactured by Dupont. The number after the word "Freon" indicates which refrigerant it is. Freon-11 is CFC-11. Freon-12 is CFC-12. Freon-22 is HCFC-22. Freon-134a is HFC-134a. Freon-502 is CFC-502. So on and so forth. Likewise, other manufacturers have their own refrigerant names. Allied-Signal calls theirs "Genetron" (Genetron-11, Genetron-12, Genetron-22, Genetron-134a, Genetron-502, etc. Elf Atochem calls theirs "Forane". Forane-11, Forane-12, Forane-22, etc. ICI America calls theirs "Klea". Klea-12, Klea-134a, etc. It's just that "Freon" has entered the American vocabulary as a generic referent that is actually a brand name, just like "Scotch tape" (belongs to 3M), "Kleenex" (belongs to Kimberly-Clark), "Post-It" (3M again), and in some areas, people call any brand of color crayon a "Crayola" (belongs to Binney & Smith). |
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#12
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Bruce Chang wrote: > If you're using Freon like you use the > word crayon, then you should realize > that crayons aren't trademarked by Crayola. > A crayon IS a colored wax stick. I thought Crayola invented the name 'crayon', i.e. a guy named Abner Crayola III starts a business making crude wax novelty suppositories, and by way of accident, realizes their potential as wall decorating implements for small children -- I think I will name them "Crayons"! Oh well, as it is terribly unimportant, life goes on... Toyota MDT in MO |
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