[특허]Ceramic cellular structure having high cell density and catalyst layer

Ceramic cellular structure having high cell density and catalyst layer 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F28D-017/00 B32B-003/28
출원번호	US-0627536 (1975-10-31)
발명자 / 주소	Cleveland Joseph J. (Wysox PA)
출원인 / 주소	GTE Sylvania Incorporated (Stamford CT 02)
인용정보	피인용 횟수 : 36 인용 특허 : 0

초록 ▼

A ceramic cellular structure having a cell density of up to 1600 cells per square inch and wall thicknesses down to 2 mils is produced by a process which comprises: (1) forming a slurry consisting essentially of finely divided sinterable solid particles of ceramic raw materials and a controlled amount of a plastic supporting matrix containing thermoplastic resin, a thermosetting resin, a plasticizer, an organic solvent and a small amount of a deflocculant; (2) ball milling the slurry; (3) casting the slurry in the form of a film; (4) removing the solvent to produce a self-supporting green ceramic tape; (6) molding a portion of the tape to form a corrugated first member; (7) providing another portion of the tape to form a substantially flat second member; (8) forming a first bilayer by bonding the second member to the nodes of the first member; (9) mutually bonding a predetermined number of bilayers substantially identical to the first bilayer to form a cellular green structure of a desired shape; and (10) firing the green structure at a temperature sufficient to form a sinter-welded polycrystalline ceramic structure. The fired structures, after being subjected to various finishing operations, are useful as rotary heat regenerators, stationary heat recuperators and catalyst supports.

대표청구항 ▼

A cellular structure of green ceramic tape consisting essentially of finely divided sinterable solid particles of ceramic raw materials substantially uniformly distributed throughout a fugitive plastic supporting matrix, the cells of the structure being defined by alternate corrugated and flat ceramic tape members wherein said cells completely traverse the article from one face to the opposite face thereof, the weight ratio of said supporting matrix to said raw materials in said tape being from about 1:3 to about 1:6, said supporting matrix consisting essentially of from about 28.5 to about 74.5 weight percent of a two-part resin, the resin consisting essentially of polyvinyl butyral in the amount of from 50 to 95 weight percent, remainder an amine thermosetting resin selected from the group consisting of melamine formaldehyde and urea formaldehyde, and from about 25 to about 70 weight percent of a plasticizer selected from the group consisting of alkyl phthalate and dialkyl phthalate plasticIzers and from about 0.5 to about 1.5 weight percent of a deflocculating agent, the structure bearing a surface layer containing a catalyst, the structure, after firing, defining a catalytic converter.

이 특허를 인용한 특허 (36)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Ceramic cellular structure having high cell density and catalyst layer 원문보기

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Ceramic cellular structure having high cell density and catalyst layer 원문보기

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이 특허를 인용한 특허 (36)

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