Production of thin walled hollow polyurethane articles and polyu

Details Production of thin walled hollow polyurethane articles and polyu Production of thin walled hollow polyurethane articles and polyu

1990-08-14

1992-07-21

Lusignan, Michael

Coating processes

Medical or dental purpose product; parts; subcombinations;...

Particulate or unit-dosage-article base

427340, 427341, 427379, 4273882, 4274301, A61K 900

Patent

active

051321297

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 on 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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patent: 4891248 (1990-01-01), Kraus
patent: 4933213 (1990-06-01), Fourquier et al.

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