公开(公告)号：US20220105493A1

公开(公告)日：2022-04-07

申请号：US17593163

申请日：2020-03-12

Applicant: BASF Corporation

Inventor： Yi LIU ,  Yipeng SUN ,  Donald Reeder ,  Brian T. JONES ,  Andreas R. MUNDING ,  Oliver SEEL ,  David SCHLERETH ,  Hao LI

IPC: B01J23/10 ,  B01J35/04 ,  B01J35/02 ,  B01J37/00 ,  B01J37/02 ,  B01J21/04 ,  B01J21/06 ,  B01J35/00 ,  B01D53/94 ,  F01N3/28

Abstract: The present disclosure provides binder compositions formed with a plurality of binder materials having differing mean particles, the binder compositions being useful to improve washcoat adhesion on a substrate. Adhesion can be improved related to an increase in the binder concentration without a significant or substantial increase in associated viscosity. Such binder compositions can comprise a first binder material formed of a plurality of particles having a first mean particle size and a second binder material formed of a plurality of particles having a second mean particle size, wherein a ratio of the first mean particle size to the second mean particle size about 2 or greater. The present disclosure further provides catalyst compositions, catalyst articles, and emission systems incorporating the binder compositions.

公开(公告)号：US20200182115A1

公开(公告)日：2020-06-11

申请号：US16322171

申请日：2017-07-25

Applicant: BASF Corporation

Inventor： Janosch CRAVILLON ,  Stephan SIEMUND ,  Attilio SIANI ,  Thomas SCHMITZ ,  Oliver SEEL ,  Knut WASSERMANN

IPC: F01N3/10 ,  F01N3/28 ,  F01N3/035 ,  B01D46/00 ,  F01N3/022 ,  B01D46/24 ,  B01D53/94 ,  B01J35/04 ,  B01J35/10 ,  B01J37/04 ,  B01J37/02 ,  B01J37/08 ,  B01J21/04 ,  B01J23/58

Abstract: Catalyzed particulate filters comprise three-way conversion (TWC) catalytic material that permeates walls of a particulate filter such that the catalyzed particulate filter has a coated porosity that is less than an uncoated porosity of the particulate filter. The coated porosity is linearly proportional to a washcoat loading of the TWC catalytic material. A coated backpressure is non-detrimental to performance of the engine. Such catalyzed particulate filters may be used in an emission treatment system downstream of a gasoline direct injection engine for treatment of an exhaust stream comprising hydrocarbons, carbon monoxide, nitrogen oxides, and particulates.