Functionalized styrene-butadiene latex binders

C - Chemistry – Metallurgy – 08 – L

Patent

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9/58, 400/9046,

C08L 9/10 (2006.01) C08F 236/10 (2006.01) C08L 25/02 (2006.01) C08L 33/02 (2006.01) D04H 1/64 (2006.01) D06M 15/693 (2006.01) D21H 17/35 (2006.01) D21H 17/37 (2006.01) D21H 19/56 (2006.01)

Patent

CA 2035228

Abstract A latex useful as a binder for paper, nonwovens, and textiles is prepared by copolymerizing in aqueous emulsion using a redox initiator at 5°C. a mixture of 35 to 60% weight of a conjugated diene monomer and from about 30 to 65% by weight of a vinyl aryl monomer. Additional improvements can be obtained by incorporating in the mixture a small percentage by weight of copolymerizable monomers such as acrylic acid, methacrylic acid, itaconic acid and/or a functional type monomer having an activatable methyl, ethyl, propyl or butyl ester group and a vinyl group.

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