Manufacture of insoluble and only slightly water-swellable...

C - Chemistry – Metallurgy – 08 – F

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402/319, 402/477

C08F 2/10 (2006.01) A23L 2/80 (2006.01) B01J 20/22 (2006.01) C08F 26/06 (2006.01) C12H 1/056 (2006.01)

Patent

CA 1054296

ABSTRACT OF THE DISCLOSURE The present invention relates to the manufacture of insoluble and only slightly water-swellable polymers or copolymers of N-vinyl lactams by polymerization in the absence of oxygen and in the presence of sulfur compounds having a functionality of less than 6. These polymers and copolymers are obtained in the form of very fine granules showing good adsorptivity and good filtering properties.

231426

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