Patents

Spandex and Its Preparation with Dispersant Slurry

March 30, 2004

A patent has been issued for Spandex prepared with a dispersant slurry consisting essentially of 10-78%, of the final materials total weight on the total weight of the dispersant slurry, of an inorganic particulate, 2-50 wt%, based on the inorganic particulate, of a dispersant soluble in the liquid of component. This is selected from the group consisting of a phosphated block poly(alkylsiloxane)-poly(alkyleneether) alcohols and an aromatic- or alkylaromatic-terminated phosphated poly(alkyleneether) alcohols and a liquid selected from the group consisting of dimethylsulfoxide, tetramethylurea, and amides.
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