Tag Archives: sulfonated

Preparation of sulfonated polyether sulfone

Application Number: 00115419Application Date: 2000.04.21Publication Number: 1267676Publication Date: 2000.09.27Priority Information: International: C08G75/23Applicant(s) Name: East-China Science & Engineering Univ.Address: Inventor(s) Name: Pu Tong;Zheng ZuoxiangPatent Agency Code: 31203Patent Agent: luo dachenAbstract Chlorosulfonic acid, which has strong sulfonating capacity, is used as sulfonating agent for homogeneous sulfonation of polyether sulfone. At normal temperature, chlorosulfonic acid can provide reactive… Read More »

Preparation of fatty sulfonate with aerosol SO3 sulfonated formate

Application Number: 00119001Application Date: 2000.10.08Publication Number: 1297886Publication Date: 2001.06.06Priority Information: International: C07C303/06;C07C309/17;C07C309/70Applicant(s) Name: Xie RenhuaAddress: Inventor(s) Name: Xie Renhua;Xie XiaochenPatent Agency Code: 32214Patent Agent: xia haichuAbstract The preparation process of fatty sulfonate includes two steps. one sulfonation step and one bleaching and neutralizing step, inside one enclosed circular system and has no re-esterification and aging… Read More »

Preparation of sulfonated polyether sulfone filtering film

Application Number: 00125306Application Date: 2000.09.21Publication Number: 1288776Publication Date: 2001.03.28Priority Information: International: B01D71/68Applicant(s) Name: East-China Science &. Engineering Univ.Address: Inventor(s) Name: Pu Tong;Zeng Zuoxiang;Xui WeilanPatent Agency Code: 31203Patent Agent: luo dachenAbstract The present invention discloses a method for preparing nanofiltration membrane by using sulfonated polyether sulphone as raw material and adopting phase conversion method. The utilization… Read More »

Preparation method of sulfonated polyether sulphone

Application Number: 00109954Application Date: 2000.07.28Publication Number: 1292393Publication Date: 2001.04.25Priority Information: International: C08G75/23Applicant(s) Name: Sichuan Keli Instrument Technology Co. Ltd.Address: Inventor(s) Name: Yue Yilun;Wu Dake;Huang FangPatent Agency Code: 51126Patent Agent: yang dunhuaAbstract The preparation method of sulfonated polyether sulphone includes the following steps: dissolving polyether sulphone in inactive solvents of ethylidene dichloride, methylene dichloride, chloroform, dimethyl… Read More »