Patent · US Active

Honeycomb structure comprising a cement skin composition with crystalline inorganic fibrous material

US10603633B2 · kind B2 · utility

1Cited by

13References

6Claims

0Family size

Assignee

CORNING INCORPORATED · US

Inventors

Keith Norman Bubb · Beaver Dams, US
Thomas Richard Chapman · Corning, US
Kenneth Joseph Drury · Big Flats, US
Christopher Lane Kerr · Tioga, US
Mark Lewis · Ypsilanti, US
Robert John Locker · Corning, US
Huthavahana Kuchibhotla Sarma · San Jose, US
Todd Parrish St Clair · Riverside, US

Key dates

Filing date	May 1, 2015
Grant date	Mar 31, 2020
Priority date	—
Expiry date	Oct 10, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/24149
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Disclosed is a honeycomb support structure comprising a honeycomb body and an outer layer or skin formed of a cement that includes an inorganic filler material having a first coefficient of thermal expansion from 25 C to 600 C and a crystalline inorganic fibrous material having a second coefficient of thermal expansion from 25 C to 600 C. Skin cement composition controls level of cement liquid/colloid components, for example water, colloidal silica, and methylcellulose migration into the substrate during the skin application process to form barrier to skin wetting and staining during the washcoating process.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.