18041
Based on the polymer screening , two polymer combinations were selected for co - extrusion : ethylcellulose ( core ) combined with Soluplus (R) ( coat ) and polycaprolactone ( core ) with PEO ( coat ) .
 Soluplus, polycaprolactone, PEO
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 Soluplus, polycaprolactone, PEO