| abstract |
A latex useful as a binder for paper, nonwovens, or textiles is prepared by copolymerising in aqueous emulsion using a redox initiator at low temperature, e.g. 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 copolymerisable 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. |