EP0444791A1 Polymeric thickeners for aqueousbased
The invention disclosed in U S copending appliion Serial Number 352 226 overcomes nearly all these disadvantages of the prior art thickeners by providing multistage polymer particles wherein an ionicallysoluble thickener copolymer preferably basesoluble has been physically or chemically attached either directly or indirectly to another preferably baseinsoluble polymer stage
read more