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US 12,521,697 B2Granted
Cement plug composition for application to a ceramic honeycomb body and method of forming plugged ceramic honeycomb body with the same
AssigneeCorning Incorporated
InventorsWeimin Hou, Yang Li, Jianguo Wang, Qing Zhou
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Abstract
A cement composition for plugging a honeycomb body, a plugged honeycomb body, and methods of plugging a honeycomb body are provided. The cement composition includes a source of inorganic particles, an inorganic binder, an organic binder, and a crosslinking agent that is capable of reacting with the inorganic binder and the organic binder. The cement composition can be dried without firing to form water-resistant plugs in a honeycomb body.
Claims18
A plugged honeycomb body, comprising:
- a honeycomb structure comprising a plurality of intersecting porous ceramic walls extending axially between first and second end faces, the ceramic walls defining a plurality of channels;
- and
- a plurality of plugs disposed in at least some of the plurality of channels, wherein the plugs are comprised of:
- a source of inorganic particles;
- an inorganic binder;
- an organic binder;
- and
- a crosslinking agent,
- wherein the inorganic binder and the organic binder are cross-linked by the crosslinking agent,
- wherein the crosslinking agent is given by Formula (I):
- wherein each of R, R′, and R″ is an aliphatic group, a substituted aliphatic group, an aromatic group, or a substituted aromatic group having a total number of carbon atoms of from 1 to 18, and n is from 1 to 5.
8 more elements
A method of forming a plugged honeycomb body, the method comprising:
- plugging at least a portion of a plurality of channels of a honeycomb structure with a cement composition to form a plugged honeycomb body, the honeycomb structure comprising a plurality of intersecting porous ceramic walls extending axially between first and second end faces, the ceramic walls defining the plurality of channels, the cement composition comprising:
- a source of inorganic particles;
- an inorganic binder;
- an organic binder;
- a liquid vehicle;
- and
- a crosslinking agent;
- reacting the inorganic binder and the organic binder with the crosslinking agent;
- and
- heating the plugged honeycomb body to evaporate at least a portion of the liquid vehicle from the cement composition to form a plug material,
- wherein the crosslinking agent is given by Formula (I):
- wherein each of R, R′, and R″ is an aliphatic group, a substituted aliphatic group, an aromatic group, or a substituted aromatic group having a total number of carbon atoms of from 1 to 18, and n is from 1 to 5.
9 more elements
Dependencies are inferred from the claim text.