dengelland wrote:Question about ESO in dry blend for rigid blown PVC sheet.
To get to the point I have gone back looking for changes that may have caused this problem.
One thing I have found is that about 1 year ago the product number on our soybean changed, which could just be packaging.
But the chemical formula has changed also.
Used to be C57 H26 O18
Now its C57 H76 O18
Is this something that would or could change the viscosity or temperature of the melt ?
I can't tell from the chemical formulae given above. Can you tell me the supplier and grade of these two compounds? Can you provide the product data sheets for these two ESO materials. I'd like to compare oxirane content and viscosity between the two. Also, what level of ESO are you currently using in the rigid blown sheet?
I believe these epoxy plasticizers are a mixture of steric, oleic, linoleic, andlinolenic acid. So, the question, above.