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특허 상세정보

Silica aerogel

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C01B-033/158   
미국특허분류(USC) 423/335
출원번호 US-0280537 (1981-07-06)
발명자 / 주소
인용정보 피인용 횟수 : 53  인용 특허 : 2
초록

Silica aerogel in the form of a substantially crack-free, preferably transparent block is described, together with a method for the preparation of such aerogel and use thereof in solar panels. The preparation is effected by means of hydrolysis of a tetraalkoxysilane, preferably tetramethoxysilane, in an alcohol, preferably methanol, in the presence of a catalyst, preferably ammonia, for the formation of an alcogel which is aged for approximately 10 days and washed with alcohol for removing water. The alcogel is thereafter treated in an autoclave by means...

대표
청구항

A product comprising silica aerogel in the form of a moulded, substantially crack-free block with a volume of at least 1 dm3, a thickness of at least 1 cm and having pores of approximately 100 A in size, prepared by a method comprising hydrolyzing a silicic acid ester dissolved in an alcohol with water added thereto, in a mould adapted to the desired dimensions, to form a silica alcogel, said hydrolysis being carried out at or below room temperature, washing and aging the alcogel for a period of 2 to 20 days, said washing being performed with an alcohol ...

이 특허를 인용한 특허 피인용횟수: 53

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