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topic 4283

Water based polyurethanes- flexible film former - emulsifier? - additives?

(2000)

I am a student doing a project on water based polyurethanes for top coats on leather. My aim to make a PU that is a flexible film former with a molecular weight of 10,000 to 1,00,000. could any one suggest a suitable emulsifier and what HLB value is needed? what additives and cross linkers are recommended to make the resultant film water resistant? I would be grateful to anyone who could help me out on this.

thank you.

Javed S.A.
Student - India



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