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1. 发明授权

US5089407A Encapsulation of biological material in non-ionic polymer beads 失效
标题翻译：生物材料在非离子聚合物珠粒中的封装
公开(公告)号：US5089407A
公开(公告)日：1992-02-18
申请号：US438655
申请日：1989-11-17
申请人： Carol A. Baker , Albert A. Brooks , Robert Z. Greenley , Jay M. Henis
发明人： Carol A. Baker , Albert A. Brooks , Robert Z. Greenley , Jay M. Henis
IPC分类号： C12N11/04 , C12N11/08 , C12N11/12
CPC分类号： C12N11/04 , C12N11/08 , C12N11/12 , Y10S530/813 , Y10S530/814 , Y10S530/817
摘要： Biological materials such as enzymes, proteins and peptides are encapsulated by forming a mixture of the material and an aqueous non-ionic polymer solution, spraying the mixture into a circulating water-immiscible nonsolvent for the polymer at a temperature sufficient to freeze the beads and drying the frozen beads to remove essentially all unbound water such as to provide a water content of about 1-2 weight percent. Suitable non-ionic polymers are poly(vinyl alcohol), polyvinylpyrollidone, dextran and derivatized cellulose. A densification agent such as alumina may be present in the polymer solution to enhance specific gravity of the beads formed. Encapsulated material such as microbes produced by this process provide useful agricultural agents which can be delivered to the market in a dormant state and suitable for delivery to soil or plant leaves. The beads can be applied dry, via a planting or an insecticide box, or wet via a spray nozzle.
摘要翻译：通过形成材料和水性非离子聚合物溶液的混合物来包封生物材料如酶，蛋白质和肽，将混合物在足以冷冻珠粒并干燥的温度下将该混合物喷射到用于聚合物的循环水不混溶非溶剂中所述冷冻珠子基本上除去所有未结合的水，以提供约1-2重量％的含水量。合适的非离子聚合物是聚（乙烯醇），聚乙烯吡咯烷酮，葡聚糖和衍生的纤维素。聚合物溶液中可存在致密化剂如氧化铝，以提高形成的珠的比重。通过该方法生产的诸如微生物的封装材料提供有用的农药，其可以以休眠状态递送到市场并适合于递送到土壤或植物叶中。珠子可以通过种植或杀虫剂盒进行干燥，或通过喷嘴进行湿润施用。

2. 发明授权

US4575385A Permeation modified gas separation membranes 失效
标题翻译：渗透改性气体分离膜
公开(公告)号：US4575385A
公开(公告)日：1986-03-11
申请号：US509843
申请日：1983-06-30
申请人： Albert A. Brooks , Joel R. Fried , Jay M. S. Henis , Anthony Zampini , Daniel Raucher
发明人： Albert A. Brooks , Joel R. Fried , Jay M. S. Henis , Anthony Zampini , Daniel Raucher
IPC分类号： B01D67/00 , B01D53/22
CPC分类号： B01D67/0088
摘要： Asymmetric gas separation membranes of polymeric materials having selective permeation of at least one gas of a gaseous mixture over that of one or more remaining gases of the gaseous mixture, exhibit improved permeation selectivities for the at least one gas when the asymmetric membranes have been contacted on one or both surfaces with an effective amount of a permeation modifier. The permeation modified asymmetric gas separation membrane having an effective amount of permeation modifier added in a non-homogeneous mode and without loss of Tg.
摘要翻译：具有气态混合物的至少一种气体的选择性渗透超过气态混合物的一种或多种剩余气体的选择性渗透的聚合材料的不对称气体分离膜，当不对称膜已经接触时，显示出改善的至少一种气体的渗透选择性具有有效量的渗透调节剂的一个或两个表面。渗透改性的不对称气体分离膜具有有效量的渗透调节剂，以非均匀模式加入并且不损失Tg。

3. 发明授权

US4364759A Methods for preparing anisotropic hollow fiber membranes comprising polymer of acrylonitrile and styrene and hollow fiber membranes produced therefrom 失效
标题翻译：制备包含丙烯腈和苯乙烯聚合物的各向异性中空纤维膜的方法以及由其生产的中空纤维膜
公开(公告)号：US4364759A
公开(公告)日：1982-12-21
申请号：US122956
申请日：1980-02-20
申请人： Albert A. Brooks , Jay M. S. Henis , Mary K. Tripodi
发明人： Albert A. Brooks , Jay M. S. Henis , Mary K. Tripodi
IPC分类号： B01D67/00 , B01D69/02 , B01D69/08 , B01D71/42 , D01D5/24 , B01D53/22 , B29D27/04 , B32B3/20 , D01F6/18
CPC分类号： B01D67/0088 , B01D69/02 , B01D69/08 , B01D71/42 , D01D5/24 , Y10T428/2975
摘要： Anisotropic hollow fiber membranes comprising polymer of acrylonitrile and styrene are prepared by extruding a solution of a hollow fiber-forming polymer comprising polymer of acrylonitrile and styrene in a liquid carrier through an annular spinnerette to form a hollow fiber precursor, and the hollow fiber precursor is coagulated in a liquid coagulant comprising water to form a hollow fiber membrane. The liquid carrier used in the method comprises N,N-dimethylformamide and preferably contains non-solvent for the polymer of acrylonitrile and styrene. The hollow fiber membranes have a homogeneously-formed thin selective skin on an open cellular support and exhibit high resistance to collapse. The membranes are especially useful for the separation of gases.
摘要翻译：包含丙烯腈和苯乙烯的聚合物的各向异性中空纤维膜通过环状喷丝板将包含丙烯腈和苯乙烯的聚合物的中空纤维形成性聚合物溶液在液体载体中挤出以形成中空纤维前体而制备，中空纤维前体是在包含水的液体凝结剂中凝结形成中空纤维膜。该方法中使用的液体载体包括N，N-二甲基甲酰胺，并且优选含有用于丙烯腈和苯乙烯的聚合物的非溶剂。中空纤维膜在开放的细胞载体上具有均匀形成的薄选择性皮肤，并且表现出高抗塌陷性。该膜特别适用于分离气体。

4. 发明授权

US5514413A Process for producing composite membranes 失效
标题翻译：复合膜生产工艺
公开(公告)号：US5514413A
公开(公告)日：1996-05-07
申请号：US221326
申请日：1994-03-31
申请人： Jacob A. Van't Hof , Pushpinder S. Puri , Stephen C. Lynch , Albert A. Brooks , Daniel T. Diggs
发明人： Jacob A. Van't Hof , Pushpinder S. Puri , Stephen C. Lynch , Albert A. Brooks , Daniel T. Diggs
IPC分类号： B01D53/22 , B01D67/00 , B01D69/08 , B01D69/12 , B01D71/34 , B01D71/42 , B01D71/48 , B01D71/52 , B01D71/54 , B01D71/56 , B01D71/64 , B01D71/68 , C08J9/42 , C09D201/00 , D01D5/24 , D06M15/59 , D06M23/00 , D06M101/00 , D06M101/16 , D06M101/18 , D06M101/22 , D06M101/28 , D06M101/30 , D06M101/32 , D06M101/34 , B05D3/00 , B05D5/00 , B05D7/24
CPC分类号： B01D69/12 , B01D69/08
摘要： A process is provided for fabricating composite membranes by coating a porous substrate with a solution of selective polymer. A reserve of non-solvent medium is incorporated in the substrate pore network which allows the substrate to be successfully coated with a polymer solution formulated in a solvent medium which is also a solvent for the substrate material.
摘要翻译：提供了通过用选择性聚合物溶液涂覆多孔基材来制造复合膜的方法。将非溶剂介质的储备物并入衬底孔网络中，其允许衬底被成功地涂覆在配制在也用作衬底材料的溶剂的溶剂介质中的聚合物溶液。

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