Ring-opening reactions. 3. Mechanistic path vs. ring-strain control in elimination and substitution reactions of 1,1-dimethyl cyclic ammonium ions and their .alpha.,.alpha.'-dimethyl-substituted derivatives
Catalyst for the Conversion of Syngas to Olefins and Preparation Thereof
申请人:BASF SE
公开号:US20140113981A1
公开(公告)日:2014-04-24
Described is a process for the production of a pillared silicate. The process comprises (i) providing a layered silicate; (ii) interlayer expanding the layered silicate provided in step (i) comprising a step of treating the layered silicate with one or more swelling agents; (iii) treating the interlayer expanded silicate obtained in step (ii) with one or more hydrolyzable silicon containing compounds; (iv) treating the interlayer expanded compound obtained in step (iii) with an aqueous solution to obtain a pillared silicate; (v) removing at least a portion of the one or more swelling agents from the pillared silicate obtained in step (iv); and (vi) impregnating the pillared silicate obtained in step (v) with one or more elements selected from the group consisting of Fe, Ru, Ir, and combinations of two or more thereof. Also described is a pillared silicate optionally obtainable from said process and its use, in particular, in a process for the production of one or more olefins according to the invention.
An objective of the present invention is to provide a gel polymer electrolyte composition which exhibits excellent electrolyte retaining ability, excellent ion conductivity, higher mechanical strength and excellent shape preservation, which does not require an extra step for crosslinking, and which can provide a secondary battery with excellent cycle properties and a vinyl acetal polymer used for a gel polymer electrolyte composition. There are provided a vinyl acetal polymer for a gel polymer electrolyte composition, wherein the vinyl acetal polymer has a cationic functional group, as well as a gel polymer electrolyte composition comprising the vinyl acetal polymer and an electrolyte solution, wherein a weight ratio of the vinyl acetal polymer to the electrolyte solution is 0.5:99.5 to 9:91.
Method for preparing antistatic expandable polystyrene
申请人:ARCO Chemical Technology, L.P.
公开号:EP0289321B1
公开(公告)日:1992-11-11
EP2909142A2
申请人:——
公开号:EP2909142A2
公开(公告)日:2015-08-26
UV-ABSORBING POLYMERS AND FORMULATIONS THEREOF
申请人:ISP INVESTMENTS LLC
公开号:US20170114173A1
公开(公告)日:2017-04-27
UV-absorbing polymers are provided that have at least one anhydride repeating unit that is covalently attached to at least one UV-absorbing moiety selected from the group consisting of functionalized dibenzoylmethanes, benzophenone sulfonamides, triphenyl triazines, and combinations thereof. Also provided are formulations comprising the UV-absorbing polymers.