Process for producing acid sensitive liquid composition containing a carbonate

    公开(公告)号:US06531267B2

    公开(公告)日:2003-03-11

    申请号:US09833224

    申请日:2001-04-11

    Abstract: Disclosed is a method for producing an acid sensitive liquid composition. The method involves passing an acid sensitive liquid composition containing a carbonate represented by the formula ROC(═O)OR1 wherein R and R1 independently are a hydrocarbyl group of 1 to about 10 carbon atoms, through at least one of the following two filter sheets: (a) a filter sheet containing a self-supporting fibrous matrix having immobilized therein a particulate filter aid and a particulate ion exchange resin having an average particle size of from about 2 to about 10 microns, wherein the particulate filter aid and ion exchange resin particles are distributed substantially uniformly throughout a cross-section of said matrix; and/or (b) a filter sheet containing a self-supporting matrix of fibers having immobilized therein particulate filter aid and binder resin, and having an average pore size of about 0.05 to 0.5 &mgr;m. Also disclosed is a method for treating a film of a photoresist composition disposed on a surface, which involves contacting the photoresist composition with an acid sensitive liquid composition prepared by the aforementioned method, in an amount sufficient to produce a substantially uniform film thickness of the photoresist composition across the film surface.

    Composite media for ion processing
    64.
    发明申请
    Composite media for ion processing 审中-公开
    用于离子加工的复合介质

    公开(公告)号:US20020121470A1

    公开(公告)日:2002-09-05

    申请号:US10021663

    申请日:2001-10-23

    Abstract: Composite media, systems, and devices for substantially removing, or otherwise processing, one or more constituents of a fluid stream. The composite media comprise a plurality of beads, each having a matrix substantially comprising polyacrylonitrile (PAN) and supporting one or more active components which are effective in removing, by various mechanisms, one or more constituents from a fluid stream. Due to the porosity and large surface area of the beads, a high level of contact is achieved between composite media of the present invention and the fluid stream being processed. Further, the homogeneity of the beads facilitates use of the beads in high volume applications where it is desired to effectively process a large volume of flow per unit of time.

    Abstract translation: 用于基本上去除或以其他方式处理流体流的一种或多种组分的复合介质,系统和装置。 复合介质包括多个珠,每个珠具有基本上包含聚丙烯腈(PAN)并且支持一种或多种活性组分的基质,所述活性组分通过各种机理有效地从流体物流中除去一种或多种组分。 由于珠粒的孔隙率和较大的表面积,在本发明的复合介质与待处理的流体流之间达到高水平的接触。 此外,珠的均匀性有助于在高体积应用中使用珠,其中希望有效地处理每单位时间的大体积流量。

    Filter canister for use within a storm water sewer system
    65.
    发明授权
    Filter canister for use within a storm water sewer system 失效
    过滤罐用于雨水排污系统

    公开(公告)号:US06337025B1

    公开(公告)日:2002-01-08

    申请号:US09513144

    申请日:2000-02-25

    Abstract: A filter canister for use within a storm water sewer system. The filter canister includes a hollow retention body and a lower tapered filter. The retention body defines a top and a bottom, and is positionable within the storm water sewer system so as to direct fluid flow from the top to the bottom. The lower tapered filter defines a vertex end and a base. The lower tapered filter is attached to the bottom of the retention body such that the vertex end extends upwardly toward the top. In one preferred embodiment, a pelletized treatment media, such as peat-based, activated carbon-like pellets, is contained within the retention body. During use, the treatment media removes contaminants from water flow entering the filter canister. The lower tapered filter directs the removed contaminants toward an outer periphery such that the accumulated contaminants have minimal effect on a flow rate capacity of the filter canister.

    Abstract translation: 用于雨水排污系统的过滤罐。 过滤罐包括中空保持体和下锥形过滤器。 保持体限定顶部和底部,并且可定位在雨水下水道系统内,以便引导流体从顶部流到底部。 下锥形过滤器限定顶点和底部。 下锥形过滤器附接到保持体的底部,使得顶端向上朝向顶部延伸。 在一个优选的实施方案中,颗粒状处理介质,例如基于泥炭的活性炭样颗粒,包含在保持体内。 在使用过程中,处理介质会从进入过滤罐的水流中去除污染物。 下锥形过滤器将去除的污染物引向外周,使得累积的污染物对过滤罐的流量容量具有最小的影响。

    Ion exchange resin
    66.
    发明授权
    Ion exchange resin 失效
    离子交换树脂

    公开(公告)号:US06203708B1

    公开(公告)日:2001-03-20

    申请号:US09314526

    申请日:1999-05-17

    CPC classification number: B01J39/18 B01J41/12 B01J47/018

    Abstract: An ion exchange resin comprising an ion exchange material dispersed or distributed throughout a polyurethane matrix. The ion exchange material is typically a second polymer which has been chemically modified after dispersion or distribution throughout the polyurethane matrix.

    Abstract translation: 离子交换树脂,其包含分散或分布在整个聚氨酯基质中的离子交换材料。 离子交换材料通常是在分散或分散在整个聚氨酯基质之后经过化学改性的第二聚合物。

    Process for curing poly(vinyl alcohol)matrix beads
    67.
    发明授权
    Process for curing poly(vinyl alcohol)matrix beads 失效
    固化聚(乙烯醇)基质珠的方法

    公开(公告)号:US3840482A

    公开(公告)日:1974-10-08

    申请号:US28830772

    申请日:1972-09-12

    Inventor: BOLTO B STEPHENS G

    CPC classification number: B01J43/00 B01J47/018

    Abstract: 1. IN THE MANUFACTURE OF A COMPOSITION ION EXCHANGE ABSORBENT CAPABLE OF BEING REGENERATED BY ELUTION WITH WATER OR SALINE AQUEOUS SOLUTION AT A TEMPERATURE EXCEEDING THAT EMPLOYED IN THE ADSORPTION STAGE, SAID ABSORBENT BEING IN THE FORM OF BEDS COMPRISING WEAKLY ACIDIC AND WEAKLY BASIC ION EXCHANGE MATERIALS DISPERSED IN A MATRIX OF A CROSS-LINKED POLUVINYL ALCOHOL OBTAINED BY FORMING A DISPERSION OF SAID ION EXCHANGE MATERIAL IN A MEDIUM COMPRISING POLYVINYL ALCOHOL AND A GLUTARALDEHYDE CROSSLIKING AGENT AND CURING, THE IMPROVEMENT WHEREBY BEADS OF INCREASED STRENGTH AND INCREASED RATE OF ION EXCHANGE ARE OBTAINED, SAID IMPROVEMENT CONSISTING OG CARRYING OUT THE CURING OF SAID BEADS WITH THE BEADS IN A SOLVENT SWOLLEN CONDITION AT A TEMPERATURE OF 80* -150* C. AND A PH IN THE RANGE OF FROM -1 TO 2.

    Abstract translation: 1377342复合离子交换树脂珠共同科学和工业研究组织和ICI澳大利亚有限公司1973年1月15日2027/73标题C3P在制备颗粒形式的复合离子交换吸附剂的方法中,吸附剂包含弱酸性和/或碱性离子 交换材料分散在交联的聚乙烯醇基质中,该方法包括在包含聚乙烯醇的介质中形成离子交换材料的分散体并交联聚乙烯醇,然后将产物珠在溶剂溶胀条件下固化 温度介于80℃和150℃之间,pH为1〜2。用于溶胀珠粒的溶剂的实例是水,甲醇,乙醇,丙酮和甲基乙基酮。 分散在基质中的离子交换材料优选具有小于300微米的粒度。 弱酸性交换剂的实例是交联聚丙烯酸和丙烯酸或甲基丙烯酸的共聚物,弱碱性交换剂的是交联聚乙烯基苄基二烷基胺,聚三烯丙基胺,交联聚烷基二烯丙基胺,交联聚芳基烷基二烯丙基胺和三烯丙基共聚物 胺类 在实施例中,使用戊二醛交联聚乙烯醇,然后在特定条件下固化该珠粒。 用于聚乙烯醇的交联剂的其它众所周知的实例包括甲醛,除戊二醛以外的二醛,二羟甲基脲,钛酸四丁酯,双-3-甲氧基亚丙基,季戊四醇,重氮和四唑盐和硼酸。 已知交联纤维素的其它化合物也被规定。 还提到辐照。

    Method for forming pyrolyzed structures
    68.
    发明授权
    Method for forming pyrolyzed structures 失效
    形成聚吡咯结构的方法

    公开(公告)号:US3676173A

    公开(公告)日:1972-07-11

    申请号:US3676173D

    申请日:1969-04-10

    Applicant: SCOTT PAPER CO

    Inventor: ADAMS WHITNEY R

    Abstract: POROUS, CELLULAR STRUCTURES WHICH HAVE BEEN AT LEAST PARTIALLY CARBONIZED, WHICH HAVE GREATER STRENGTH AT HIGH TEMPERATURES, AND WHICH ARE CAPABLE OF WITHSTANDING HIGHER TEMPERATURES THAN COULD THE STRUCTURES PRIOR TO PYROLYSIS. A METHOD FOR FORMING THE ABOVE STRUCTURES IN WHICH A FIRST BASIC STRUCTURE HAVING A DESIRED CONFIGURATION AND COMPRISES OF MATERIAL HAVING A LOW FUSION OR DETERIORATION TEMPERATURE IS COATED AT EVEN LOWER TEMPERATURES WITH AN INFUSIBLE RESIN WHICH IS CAPABLE OF BEING CURED TO AN INFUSIBLE STATE AT A TEMPERATURE LOWER THAN THE FUSION OR DETERIORATION TEMPERATURE OF THE MATERIAL COMPRISING THE FIRST BASIC STRUCTURE, AND THE RESULTING COATED STRUCTURE, IS THEN SUBJECTED TO ELEVATED TEMPERATURES SO THAT THE BASIC STRUCTURE IS PYROLYZED AND CARBONIZED LEAVING A STRONGER, HIGH-TEMPERATURE-RESISTANT STRUCTURE SUBSTANTIALLY IN THE IMAGE OF THE FIRST BASIC STRUCTURE.

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