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Semipermeable microcapsules containing a silica gel 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B01J-021/08
  • B01J-037/00
출원번호 US-0487814 (1974-07-11)
발명자 / 주소
  • Marquisee Mark James (Wilmington DE)
출원인 / 주소
  • E. I. Du Pont de Nemours and Company (Wilmington DE 02)
인용정보 피인용 횟수 : 64  인용 특허 : 0

초록

Described are semipermeable microcapsules which comprise an outer semipermeable polymeric skin encapsulating a silica gel. These microcapsules may be used as chromatographic media or may be modified to contain a homogeneous or heterogeneous catalyst and/or a ferromagnetic material.

대표청구항 ▼

A semipermeable microcapsule which comprises an outer semipermeable polymeric skin selected from the group consisting of polystyrene, collodion, ethylcellulose, cellulose acetate butyrate, polyamide, polyurethane, polysulfonamide, polyurea, polyester and polycarbonate encapsulating therein a silica

이 특허를 인용한 특허 (64)

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  20. Fedynyshyn, Theodore H., Encapsulated inorganic resists.
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  23. Lupton E. C. ; Yu Xiaohong ; Bromberg Lev ; Hand Barry Joseph, Encapsulated materials.
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  27. Wedding, Daniel K.; Strbik, III, Oliver M.; Wedding, Carol Ann, Gas discharge device with electrical conductive bonding material.
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  28. Wenzlaff, Robert P.; Peters, Edwin F.; Wedding, Carol Ann, Gas filled detector shell with dipole antenna.
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  29. Torobin Leonard B. (Materials Technology Corp.,Tower Place/Ste. 1425 ; 3340 Peachtree Rd. NE. Atlanta GA 30026), Hollow microspheres made from dispersed particle compositions and their production.
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  33. Dupuis, Dominique; Jourdat, Catherine, Method for preparing capsules consisting of a liquid active material core enclosed in a mineral coating.
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  34. Strbik, III, Oliver M.; Wedding, Carol Ann, Method of fabricating a plasma-shell PDP with combined organic and inorganic luminescent substances.
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  35. Sang Jean V. (4404 Bath Road Kingston ; Ontario CAX K7N 1A2) Groves Paul (Flat 5 ; Sandford Mount Charlbury ; Oxon GB2) Burrell Robert E. (187 Chelsea Road Kingston ; Ontario CAX K7M 3Z1) Flynn Gerar, Method of making magnetically attractable particles.
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  50. Strbik, III, Oliver M.; Wedding, Carol Ann; Wedding, Daniel K., Process for manufacturing plasma-dome PDP.
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  57. Wormsbecher, Richard Franklin, Solid compositions for selective adsorption from complex mixtures.
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  58. Wormsbecher,Richard Franklin, Solid compositions for selective adsorption from complex mixtures.
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  59. Alberts Heinrich (Cologne DEX) Dahm Manfred (Leverkusen DEX) Jabs Gert (Odenthal DEX) Wegner Christian (Cologne DEX), Spray drying of microcapsule dispersions.
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  60. Wormsbecher, Richard Franklin, Supported catalyst systems.
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  61. Wormsbecher,Richard Franklin, Supported catalyst systems.
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  62. Wormsbecher,Richard Franklin, Supported catalyst systems.
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  63. Fedynyshyn, Theodore H., Surface modified encapsulated inorganic resist.
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  64. O'Loughlin,Jill A.; Bruder,Jan Markus; Lysaght,Michael J., Systems and methods related to degradation of uremic toxins.
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