Cementitious materials for use in packaging containers and their methods of manufacture
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B32B-013/00
C04B-014/00
출원번호
US-0019151
(1993-02-17)
발명자
/ 주소
Andersen Per J. (Santa Barbara CA) Hodson Simon K. (Santa Barbara CA)
출원인 / 주소
E. Khashoggi Industries (Santa Barbara CA 02)
인용정보
피인용 횟수 :
77인용 특허 :
0
초록▼
Cementitious containers which have a cementitious structural matrix for use in the packaging, storing, partitioning, and/or shipping of goods. The containers are manufactured from cementitious materials in order to be strong, durable, tough, lightweight, cushioning, insulative, inexpensive, and more
Cementitious containers which have a cementitious structural matrix for use in the packaging, storing, partitioning, and/or shipping of goods. The containers are manufactured from cementitious materials in order to be strong, durable, tough, lightweight, cushioning, insulative, inexpensive, and more environmentally compatible than those currently used in packaging, storing, and/or shipping goods. The cementitious structural matrix of the containers includes a hydraulic cement paste (formed from the reaction of water with, e.g., a portland cement) in combination with a rheology-modifying plasticizer, such as methylhydroxyethylcellulose. Preferred embodiments may also include various aggregate materials, fibrous materials, and air voids, which add the necessary strength while making the product lightweight, and which can provide insulative properties (if desired) at a cost which is economically justified in comparison to conventional paper and polystyrene products. The molded cementitious mixtures generally have sufficient strength in the green (or uncured) state to maintain their molded shape. The cementitious mixtures can be formed into flat sheets having greatly varying thicknesses depending upon the intended use of the container, Corrugated sheets can be made to increase the container strength.
대표청구항▼
An article of manufacture for storing, dispensing, packaging, portioning, or shipping comprising a container formed from a cementitious structural matrix, the matrix including the reaction products of a cementitious mixture comprising a hydraulic cement selected from the group consisting of portland
An article of manufacture for storing, dispensing, packaging, portioning, or shipping comprising a container formed from a cementitious structural matrix, the matrix including the reaction products of a cementitious mixture comprising a hydraulic cement selected from the group consisting of portland cement, slag cement, calcium aluminate cement, silicate cement phosphate cement, white cement, high alumina cement, and magnesium oxychloride cement, water, and a rheology-modifying agent, the cementitious mixture having a rheology and early green strength during formation of the container such that the cementitious structural matrix of the container is form stable through the removal of water from the cementitious mixture within a period of time of about 10 minutes or less after being positioned into a desired shape of the container for storing, dispensing, packaging, portioning, or shipping, the cementitious structural matrix having a thickness of about 5 mm or less and a density of about 1.6 g/cm3 or less.
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