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특허 상세정보

Hollow microspheres made from dispersed particle compositions and their production

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B29C-035/00    B29C-071/00    C03B-009/00    C04B-038/02   
미국특허분류(USC) 501/84 ; 65/214 ; 166/280 ; 264/43
출원번호 US-0889927 (1986-07-28)
발명자 / 주소
인용정보 피인용 횟수 : 76  인용 특허 : 19
초록

Hollow microspheres are made by a process which comprises forming a film of a dispersed particle film-forming composition (containing dispersed particles, a binder, a film stabilizing agent and a continuous liquid phase) across a coaxial blowing nozzle, applying a blowing gas at a positive pressure on the inner surface of the dispersed particle composition film to blow the film and form, in the region of the coaxial blowing nozzle orifice, hollow dispersed particle microspheres having stable film walls, removing the hollow microspheres, treating them to ...

대표
청구항

A method for making hollow green microspheres of 200 to 10,000 micron diameter and of 1 to 1000 microns wall thickness from a stable dispersion of a dispersed particle film forming composition, said composition comprising dispersed particles in a continuous liquid phase, said method comprising feeding said dispersed particle composition and a blowing gas to a coaxial blowing nozzle, said coaxial blowing nozzle having an inner coaxial nozzle for said blowing gas and an outer coaxial nozzle for said dispersed particle composition and a coaxial blowing nozz...

이 특허에 인용된 특허 (19)

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  2. Shank Joseph L. (Matteson IL). Encapsulation process utilizing microorganisms and products produced thereby. USP1977014001480.
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  4. Torobin Leonard (13433 N.E. 45th St. Bellevue WA 98004). Hollow plastic microspheres. USP1981124303736.
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  10. Torobin Leonard B. (Materials Technology Corp. ; 4174 148th Ave. NE. Redmond WA 98052). Method and apparatus for producing hollow metal microspheres and microspheroids. USP1983114415512.
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  14. Henis Jay M. S. (Creve Coeur MO) Tripodi Mary K. (Creve Coeur MO). Multicomponent membranes for gas separations. USP1980104230463.
  15. Sowman Harold G. (Maplewood MN). Non-vitreous ceramic metal oxide microcapsules and process for making same. USP1982094349456.
  16. De Vos Daniel (Jette BE) Michel Paul-Marie (Jumet BE) Berger Alfred (Jamioulx BE). Process for the preparation of expansible beads. USP1977114059423.
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  19. Marquisee Mark James (Wilmington DE). Semipermeable microcapsules containing a silica gel. USP1976053954678.

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