Vesiculated polymer granules

C - Chemistry – Metallurgy – 08 – F

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9/56, 403/57

C08F 283/01 (2006.01) C08F 299/04 (2006.01) C08J 9/00 (2006.01) D21H 21/54 (2006.01) D21H 17/07 (2006.01) D21H 17/40 (2006.01) D21H 17/66 (2006.01) D21H 17/67 (2006.01)

Patent

CA 1302646

C-I-L CASE 728 Abstract: Vesiculated Polymer Granules Vesiculated granules of cross-linked carboxylated polyester resin prepared by the free radical polymerization of a dispersion of an ethylenically unsaturated monomer, a carboxylated unsaturated polyester resin having an acid value of from 5 - 50 mg KOH/g and an alkyl acryloyl derivative. Aqueous compositions comprising the granules are used in conjunction with fibrous cellulosic or non-cellulosic materials for the preparation of paper containing the vesiculated polymeric granules dispersed therein. The paper has improved optical opacity.

568448

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