Co-poly, means what?

BlueB

Legend
Silly question that just occurred to me recently... We know that "poly" stands for short of polyester, when we talk about strings.
Now, "co-poly" could stand for a co-polyester or for any co-polymer. Do we know what string companies actually mean with it. I'm sure that I've seen at least one example where it said in smaller print that the string was a co-polymer (not necessarily polyester derived).
 

ricardo

Hall of Fame
Silly question that just occurred to me recently... We know that "poly" stands for short of polyester, when we talk about strings.
Now, "co-poly" could stand for a co-polyester or for any co-polymer. Do we know what string companies actually mean with it. I'm sure that I've seen at least one example where it said in smaller print that the string was a co-polymer (not necessarily polyester derived).
Poly - original poly or pure poly, hard/stiff, low-powered, significant tension loss

Co-poly - additional ingredients are added to poly (pure) to make it softer, or improve tension maintenance or make it more powerful or other characteristics that tennis players want.

The word co is used as in co-author, coed, etc
http://www.english-for-students.com/Prefix-CO.html
 

BlueB

Legend
Yes I know very well what the prefix co is used for. This still doesn't ansver my original question. Do we know whether there are some "co-poly" strings out there, that are just co-polymers of whatever nature, but not co-polyesters?
 

ricardo

Hall of Fame
Yes I know very well what the prefix co is used for. This still doesn't ansver my original question. Do we know whether there are some "co-poly" strings out there, that are just co-polymers of whatever nature, but not co-polyesters?
co-poly = co-polyester
 
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