[미국특허]
Viscous carrier compositions, including gels, formed with an organic liquid carrier, a layered material: polymer complex, and a di-, and/or tri-valent cation
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C08J-005/10
C08K-003/34
C08L-039/06
출원번호
US-0017421
(1998-02-02)
발명자
/ 주소
Tsipursky Semeon
Dolinko Vladimir
Psihogios Vasiliki
Beall Gary W.
출원인 / 주소
Amcol International Corporation
대리인 / 주소
Marshall, O'Toole, Gerstein, Murray & Borun
인용정보
피인용 횟수 :
40인용 특허 :
45
초록▼
Intercalates formed by contacting the layer material, e.g., a phyllosilicate, with an intercalant to sorb or intercalate the between adjacent platelets of the layered material. Sufficient intercalant polymer is sorbed between adjacent platelets to expand the adjacent platelets at least about 5 .ANG.
Intercalates formed by contacting the layer material, e.g., a phyllosilicate, with an intercalant to sorb or intercalate the between adjacent platelets of the layered material. Sufficient intercalant polymer is sorbed between adjacent platelets to expand the adjacent platelets at least about 5 .ANG. (as measured after water removal to 5% by weight water), up to about 100 .ANG. and preferably in the range of about 10-45 .ANG., so that the intercalate easily can be exfoliated into individual platelets. A monovalent, divalent and/or trivalent cation is added to the intercalating composition, or after intercalation for surprising increases in viscosity. The intercalated complex is combined with an organic liquid into an unexpectedly viscous carrier material, for delivery of the carrier material, or for delivery of an active compound, e.g., a pharmaceutical, or cosmetic, or lubricant, e.g., food grade lubricants dissolved or dispersed in the carrier material. Alternatively, the intercalated complex can be exfoliated prior to combination with the organic liquid.
대표청구항▼
[ What is claimed is:] [1.] A composition comprising an intercalate, together with an organic solvent and cations selected from the group consisting of monovalent cations, divalent cations, trivalent cations, and mixtures thereof, said intercalate formed by contacting a layered material, having a mo
[ What is claimed is:] [1.] A composition comprising an intercalate, together with an organic solvent and cations selected from the group consisting of monovalent cations, divalent cations, trivalent cations, and mixtures thereof, said intercalate formed by contacting a layered material, having a moisture content of at least about 4% by weight, with an intercalant to form an intercalating composition, said intercalate having a weight ratio of intercalant to layered material of at least 1:20, to achieve sorption and complexing of the intercalant between adjacent spaced layers of the layered silicate material to expand the spacing between a predominance of the adjacent platelets of said layered silicate material at least about 5 .ANG., when measured after sorption of the intercalant and drying to 5% by weight water, said cations dissociated from a metal salt compound and added to the layered material as said metal salt compound, or the cations dissociated therefrom, added to the layered material before, during or after intercalation of the layered material.
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