Microporous polyurethane hydrogels, method and composites with n

Details Microporous polyurethane hydrogels, method and composites with n Microporous polyurethane hydrogels, method and composites with n

1974-06-18

1976-02-17

Cockeram, H. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 25AD, 260 775SP, 260 25AP, 264184, 428364, 428425, C08G 1814

Patent

active

039391051

ABSTRACT:
Microporous polyurethane hydrogels of high water swellability comprising lightly crosslinked polymers of isocyanate terminated prepolymers which are the reaction product of (i) poly(alkyleneoxy) polyol with (ii) organic diisocyanate that has been lightly crosslinked with (iii) water or an organic polyamine are produced by impregnating the isocyanato terminated prepolymer solution prior to contact with the crosslinking agent with a minor significant amount of a liquid non-solvent.

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patent: 3789027 (1974-01-01), Traeubel et al.
patent: 3821136 (1974-06-01), Hudgin et al.
patent: 3822238 (1974-07-01), Blair et al.

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