Polymers for Contact Lenses
    1.
    发明申请
    Polymers for Contact Lenses 有权
    聚合物用于隐形眼镜

    公开(公告)号:US20120302661A1

    公开(公告)日:2012-11-29

    申请号:US13505416

    申请日:2010-11-02

    Abstract: The present invention relates to a polyurethane prepared from a mixture comprising: (a) at least one polyethylene glycol; (b) at least one di-isocyanate; (c) at least one polydialkyl siloxane diol; and (d) at least one diol of formula (I) wherein n is an integer from 1 to 25; wherein the polyethylene glycol, di-isocyanate, polydialkyl siloxane diol and diol are reacted under substantially anhydrous conditions. Further aspects of the invention relate to a process for preparing a polyurethane. The invention also relates to a process for preparing a polyurethane xerogel in the form of a molded article, said process comprising the steps of: (i) preparing a reaction mixture comprising at least one polyethylene glycol, at least one di-isocyanate, at least one polydialkyl siloxane diol and at least one diol of formula I as described above; (ii) reacting the reaction mixture formed in step (i) under substantially anhydrous conditions to form a polyurethane xerogel; and (iii) injection molding the polyurethane xerogel to form a molded article.

    Abstract translation: 本发明涉及由以下混合物制备的聚氨酯:(a)至少一种聚乙二醇; (b)至少一种二异氰酸酯; (c)至少一种聚二烷基硅氧烷二醇; 和(d)至少一种式(I)的二醇,其中n是1至25的整数; 其中聚乙二醇,二异氰酸酯,聚二烷基硅氧烷二醇和二醇在基本无水条件下反应。 本发明的其它方面涉及一种制备聚氨酯的方法。 本发明还涉及一种制备模制品形式的聚氨酯干凝胶的方法,所述方法包括以下步骤:(i)制备包含至少一种聚乙二醇,至少一种二异氰酸酯的反应混合物,至少一种 一种聚二烷基硅氧烷二醇和至少一种如上所述的式I的二醇; (ii)在基本上无水条件下使步骤(i)中形成的反应混合物反应形成聚氨酯干凝胶; 和(iii)注射成型聚氨酯干凝胶以形成模塑制品。

    Precision siphon operated septic field dosing system with filtration and backwash
    3.
    发明授权
    Precision siphon operated septic field dosing system with filtration and backwash 有权
    精密虹吸操作化粪池系统,过滤和反冲洗

    公开(公告)号:US08104499B2

    公开(公告)日:2012-01-31

    申请号:US12079858

    申请日:2008-03-28

    Applicant: Abdul Rashid

    Inventor: Abdul Rashid

    Abstract: A septic field dosing system is described which utilizes a self starting true siphon to deliver a dose of septic tank effluent into a conventional septic field. The precision siphon unit not only eliminates the need for electrical services to the septic tank, thereby eliminating the need for pumps and solenoid operated valves and switches at the septic tank, but also contains the effluent handling equipment in a small unit. For example, the drawdown of the septic tank is used to entirely control the operation of the dosing siphon. Further, the dimensional configuration of the precision siphon operates within the boundaries of the draw down to deliver a proper size dose to the septic field. While a typical septic tank can hold of the order of a thousand or more gallons, the precision siphon can easily fit into a five gallon bucket.

    Abstract translation: 描述了一种使用自启动真虹吸将一定剂量的化粪池流出物输送到常规化粪池中的化粪池计量系统。 精密虹吸单元不仅消除了对化粪池的电气服务的需要,从而消除了在化粪池上的泵和电磁阀和开关的需要,而且在一个小单元中也包含污水处理设备。 例如,化粪池的下降用于完全控制定量虹吸管的操作。 此外,精密虹吸管的尺寸结构在抽吸的边界内运行,以向脓毒场输送适当尺寸的剂量。 虽然典型的化粪池可以容纳一千加仑以上,但精密虹吸管可以很容易地装入五加仑桶。

    METHOD OF FORMING
    5.
    发明申请
    METHOD OF FORMING 审中-公开
    形成方法

    公开(公告)号:US20100013114A1

    公开(公告)日:2010-01-21

    申请号:US12282235

    申请日:2007-03-12

    CPC classification number: G02B1/043 A61L27/18 C08L71/02

    Abstract: The present invention relates to a method of using non-macrogelled polymer-solvent combinations to form devices, in particular medical devices and/or cosmetic devices, more specifically contact lenses. The method of using polymer solvent combinations is suitable for forming useful 3D dimensionally stable structures which may include curved surfaces, which may be significantly different to those curved surfaces achieved by using simple meniscus effects.

    Abstract translation: 本发明涉及使用非聚凝胶聚合物 - 溶剂组合来形成装置,特别是医疗装置和/或化妆品装置,更具体地说是隐形眼镜的方法。 使用聚合物溶剂组合的方法适用于形成有用的3D尺寸稳定的结构,其可以包括弯曲表面,其可以与通过使用简单的弯月面效应实现的那些曲面显着不同。

    Precision siphon operated septic field dosing system with filtration and backwash
    7.
    发明申请
    Precision siphon operated septic field dosing system with filtration and backwash 有权
    精密虹吸操作化粪池系统,过滤和反冲洗

    公开(公告)号:US20080178943A1

    公开(公告)日:2008-07-31

    申请号:US12079858

    申请日:2008-03-28

    Applicant: Abdul Rashid

    Inventor: Abdul Rashid

    Abstract: A septic field dosing system is described which utilizes a self starting true siphon to deliver a dose of septic tank effluent into a conventional septic field. The precision siphon unit described by present invention not only eliminates the need for electrical services to the septic tank, thereby eliminating the need for pumps and solenoid operated valves and switches at the septic tank, but also contains the effluent handling equipment in a small unit which uses the available features of the septic tank to assist in the performance of its operations. For example, the drawdown of the septic tank which is now determined by the configuration of the siphon unit is used to entirely control the operation of the dosing siphon. Further, the dimensional configuration of the precision siphon taught by the invention operates within the boundaries of the draw down to deliver a proper size dose to the septic field. While a typical septic tank can hold of the order of a thousand or more gallons, the precision siphon can easily fit into a five gallon bucket.

    Abstract translation: 描述了一种使用自启动真虹吸将一定剂量的化粪池流出物输送到常规化粪池中的化粪池计量系统。 本发明描述的精密虹吸单元不仅消除了对化粪池的电力服务的需要,从而消除了在化粪池处的泵和电磁阀和开关的需要,而且还包含在小单元中的流出物处理设备 使用化粪池的可用特征来协助其运行。 例如,现在由虹吸单元的构造确定的化粪池的抽出被用于完全控制给药虹吸管的操作。 此外,由本发明教导的精密虹吸管的尺寸结构在抽吸的边界内操作,以向脓毒场输送适当尺寸的剂量。 虽然典型的化粪池可以容纳一千加仑以上,但精密虹吸管可以很容易地装入五加仑桶。

    Process for the simultaneous conversion of methane and organic oxygenate to C2 to C10 hydrocarbons
    8.
    发明授权
    Process for the simultaneous conversion of methane and organic oxygenate to C2 to C10 hydrocarbons 失效
    将甲烷和有机含氧化合物同时转化为C2至C10烃的方法

    公开(公告)号:US07022888B2

    公开(公告)日:2006-04-04

    申请号:US10397849

    申请日:2003-03-27

    Abstract: A process for the non-oxidative conversion of methane simultaneously with the conversion of an organic oxygenate, represented by a general formula: CnH2n+1OCmH2m+1, wherein C, H and O are carbon, hydrogen and oxygen elements, respectively; n is an integer having a value between 1 and 4; and m is an integer having a value between zero and 4, to C2+ hydrocarbons, particularly to gasoline range C6–C10 hydrocarbons and hydrogen, using a bifunctional pentasil zeolite catalyst, having strong acid and dehydrogenation functions, at a temperature below 700° C. is disclosed. In this process the moles of methane converted per mole of oxygenate converted is above 1.0, depending upon the process conditions.

    Abstract translation: 一种用于通过有机含氧化合物的转化同时进行甲烷的非氧化转化的方法,其由以下通式表示:C n H 2n + 1 C m 其中C,H和O分别为碳,氢和氧元素; n是1到4之间的整数; 并且m是具有0至4之间的值的整数,至C 2 + C 2烃,特别是汽油范围C 6 -C 10烃 和在低于700℃的温度下使用具有强酸和脱氢功能的双官能pentasil沸石催化剂的氢。 在这个过程中,转化的每摩尔含氧化合物转化的甲烷的摩尔数大于1.0,这取决于工艺条件。

    Process for the production of ethylene by non-catalytic oxidative
cracking of ethane or ethane rich C.sub.2 -C.sub.4 paraffins
    9.
    发明授权
    Process for the production of ethylene by non-catalytic oxidative cracking of ethane or ethane rich C.sub.2 -C.sub.4 paraffins 失效
    通过乙烷或富含乙烷的C2-C4链烷烃的非催化氧化裂化生产乙烯的方法

    公开(公告)号:US5763725A

    公开(公告)日:1998-06-09

    申请号:US933109

    申请日:1997-09-18

    CPC classification number: C07C4/025 Y02P20/52 Y02P20/582 Y10S585/91

    Abstract: An improved process for the production of ethylene by non-catalytic oxidative cracking of ethane or ethane rich C.sub.2 -C.sub.4 paraffins with high conversion, selectivity and productivity, operating in a most energy efficient and safe manner requiring little or no external energy, in an empty tubular reactor, wherein the exothermic oxidative conversion of ethane or ethane rich C.sub.2 -C.sub.4 paraffins is coupled with the endothermic hydrocarbon cracking reactions by carrying out both the exothermic and endothermic reactions simultaneously in the reactor so that the heat produced in the exothermic reactions is used instantly in the endothermic reactions and thereby making the overall process mildly exothermic, near thermo-neutral or mildly endothermic, which comprises passing a preheated gaseous feed comprising of ethane or ethane rich C.sub.2 -C.sub.4 paraffins, oxygen and steam through an empty tubular reactor operated at the effective temperature, pressure, space velocity and hydrocarbon/O.sub.2 and hydrocarbon/steam mole ratios in the feed, is provided.

    Abstract translation: 一种改进的乙烯生产工艺,通过非催化氧化裂解乙烷或富含乙烷的富C2-C4链烷烃,具有高转化率,选择性和生产率,以最节能和安全的方式运行,需要很少或没有外部能量,在空的 其中乙烷或富含乙烷的C2-C4链烷烃的放热氧化转化通过在反应器中同时进行放热和吸热反应与吸热烃裂解反应相结合,使得在放热反应中产生的热量立即使用 在吸热反应中,从而使整个过程温和地放热,接近热中性或温和吸热,其包括使包含乙烷或富乙烷的C2-C4链烷烃的氧气和蒸汽的预热气态进料通过在 有效的温度,压力,空间速度和烃/ O 2和烃/蒸汽 提供饲料中的摩尔比。

    Dispensing device
    10.
    发明授权
    Dispensing device 失效
    点胶装置

    公开(公告)号:US5342624A

    公开(公告)日:1994-08-30

    申请号:US29319

    申请日:1993-03-08

    CPC classification number: A61K9/4808

    Abstract: Novel devices for the controlled release of active materials especially pharmaceutical are formed from at least two interpenetrating pieces. The male piece is water swellable and swells to disengage the female piece. The female piece is preferably formed from a thermoplastic, e.g. LDPE or from a soluble material such as gelatin which is rendered impermeable by an external coating of a hydrophobic material such as PVC. The devices find particular application as oral dosage forms for use in man.

    Abstract translation: 用于控制释放活性物质,特别是药物的新型装置由至少两个互穿件形成。 男性的一块水是可膨胀的,并膨胀以脱离女性的部分。 阴片优选由热塑性塑料制成。 LDPE或来自可溶性材料如明胶,其通过疏水性材料如PVC的外部涂层使其不透水。 该装置特别用作人用口服剂型。

Patent Agency Ranking