Patent ID: 9321851
Filing Date: 2016-04-26
CPC Classification: C08B,C08K,C08L,C09D

Claim Text:
1. A storage stable cellulose ether formulation which disperses in water without forming lumps, comprising: a) a cellulose ether at least partially crosslinked with a crosslinker having a first reactive moiety and a second reactive moiety, wherein said first reactive moiety is an aldehyde and said second reactive moiety is selected from the group consisting of aldehyde, silanol, isocyanate, halomethyl, alkyl tosylate ether, epoxide, and combinations thereof; and b) a solid water soluble acid selected from the group consisting of amino acids, partially neutralized polycarboxylic acids, and combinations thereof, wherein said solid water soluble acid has a pKa of 4.2 to 6 and is present in the storage stable cellulose ether formulation in a range of from more than 1 to about 20 wt % of the formulation.