Production of thin walled hollow polymeric articles and...

B - Operations – Transporting – 29 – C

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117/101, 117/183

B29C 41/14 (2006.01) A61F 6/04 (2006.01) B29C 41/22 (2006.01) C08J 7/04 (2006.01)

Patent

CA 2022813

Abstract A process for making thin walled hollow polymeric articles or for forming a polymeric coating on a substrate, comprises contacting a suitably shaped former or a substrate to be coated with a solution of an amine-terminated prepolymer having a functionality of at least 2 in an organic solvent to form a coating on the former or substrate, drying the coating on the former or substrate, then contacting the coating on the former or substrate with a solution of a polyfunctional curing agent which is capable of reacting with the amino end groups of the prepolymer to cause chain extension and/or cross-linking of the latter.

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