Polyesters from terephthalic acid,
2,2,4,4-tetramethyl-1,3-cyclobutanediol and ethylene glycol
    1.
    发明授权
    Polyesters from terephthalic acid, 2,2,4,4-tetramethyl-1,3-cyclobutanediol and ethylene glycol 失效
    来自对苯二甲酸,2,2,4,4-四甲基-1,3-环丁二醇和乙二醇的聚酯

    公开(公告)号:US5955565A

    公开(公告)日:1999-09-21

    申请号:US996596

    申请日:1997-12-23

    摘要: The invention relates to a copolyester containing (a) a dicarboxylic acid component having from about 80 to 100 mole % terephthalic acid or the ester thereof; less than or equal to 20 mole % of an aromatic dicarboxylic acid having up to 20 carbon atoms or the ester thereof; and less than or equal to 10 mole % of an aliphatic dicarboxylic acid or an ester thereof having up to 16 carbon atoms; and (b) a glycol component having from about 25 to 85 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol, from about 15 to 75 mole % ethylene glycol; and less than or equal to 10 mole % of a diol having 3 to 16 carbon atoms, wherein the total mole % of the dicarboxylic acid component is 100 mole % and the total mole % of the glycol component is 100 mole %. The invention further relates to a process for preparing the above-identified copolyester. The invention further relates to a blend having from about 5 to 95 wt % of the above-identified copolyester; and from 5 to 95 wt % of a component comprising a flame retardant, a filler, a reinforcing agent, a polymer or a mixture thereof. The invention further relates to an article prepared from the above-identified copolyester and blend.

    摘要翻译: 本发明涉及一种共聚酯,其含有(a)具有约80-100摩尔%对苯二甲酸或其酯的二羧酸组分; 小于或等于20摩尔%的具有至多20个碳原子的芳族二羧酸或其酯; 和少于或等于10摩尔%的具有至多16个碳原子的脂族二羧酸或其酯; 和(b)具有约25至85摩尔%的2,2,4,4-四甲基-1,3-环丁二醇,约15至75摩尔%乙二醇的二醇组分; 和小于或等于10摩尔%的具有3至16个碳原子的二醇,其中二羧酸组分的总摩尔%为100摩尔%,二醇组分的总摩尔%为100摩尔%。 本发明还涉及一种制备上述共聚多酯的方法。 本发明还涉及具有约5-95wt%上述共聚多酯的共混物; 和5至95重量%的包含阻燃剂,填料,增强剂,聚合物或其混合物的组分。 本发明还涉及由上述共聚酯和共混物制备的制品。

    Variable digital control for electronic device with rotary switch control
    2.
    发明授权
    Variable digital control for electronic device with rotary switch control 失效
    具有旋转开关控制的电子设备的可变数字控制

    公开(公告)号:US5513268A

    公开(公告)日:1996-04-30

    申请号:US179300

    申请日:1994-01-10

    IPC分类号: H01H19/00 H03J1/22 G06F3/03

    CPC分类号: H03J1/22 H01H19/005

    摘要: A digital control device and method are provided for controlling functions such as volume and tuning for an electronic radio in response to a digital rotary switch. The apparatus includes a digital switch movable to a plurality of positions and which has a plurality of digital outputs to represent the positions. Control increments corresponding to an amount of rotation and rate of rotation of the switch are stored in a memory. The rotary switch output is periodically sampled to determine when switch movement occurs and to further determine the direction of switch rotation based on a sequence of the plurality of digital outputs. The rate of rotation of the rotary switch is then determined from counting changes in position of the switch over a sampling time A control increment is looked up in the memory that corresponds to the determined rate. The control increment is then used to change a digital output signal for controlling the electronic device. The digital output signal may control volume for an electronic radio or may include a tuner selector for selecting the tuning frequency of a radio. Accordingly, the present invention enables one to have variable control of radio functions in accordance with predetermined rates of rotation of a digital rotary switch.

    摘要翻译: 提供了一种数字控制装置和方法,用于响应于数字旋转开关来控制电子收音机的音量和调谐功能。 该装置包括可移动到多个位置并且具有多个数字输出以表示位置的数字开关。 对应于开关量的旋转量和旋转速度的控制增量被存储在存储器中。 周期性地对旋转开关输出进行采样以确定何时开关移动发生,并且基于多个数字输出的顺序进一步确定开关旋转的方向。 然后,通过对采样时间内的开关的位置的改变来计算旋转开关的旋转速率。在与确定的速率对应的存储器中查找控制增量。 然后,控制增量用于改变用于控制电子设备的数字输出信号。 数字输出信号可以控制电子无线电的音量,或者可以包括用于选择无线电的调谐频率的调谐器选择器。 因此,本发明使得能够根据数字旋转开关的预定转速来进行无线电功能的可变控制。

    Blow-molding polyesters from terephthalic acid,
2,2,4,4-tetramethyl-1,3-cyclobutanediol, and ethylene glycol
    3.
    发明授权
    Blow-molding polyesters from terephthalic acid, 2,2,4,4-tetramethyl-1,3-cyclobutanediol, and ethylene glycol 有权
    来自对苯二甲酸,2,2,4,4-四甲基-1,3-环丁二醇和乙二醇的吹塑聚酯

    公开(公告)号:US6096854A

    公开(公告)日:2000-08-01

    申请号:US354974

    申请日:1999-07-16

    摘要: The invention relates to a copolyester, having (a) a repeat unit of a dicarboxylic acid component, having from 80 to 100 mole % terephthalic acid or the corresponding ester thereof, and from 0 to 20 mole % of a modifying aromatic dicarboxylic acid having less than or equal to 20 carbon atoms or the corresponding ester thereof, wherein the total mole % of dicarboxylic acid component is equal to 100 mole %; and (b) a repeat unit of a glycol component, having from 5 to 85 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol, ethylene glycol of from 15 to 95 mole %, and at least 1 mole % of a modifying glycol having from 3 to 16 carbon atoms, wherein the total mole % of glycol component is equal to 100 mole %. The invention also relates to a method of making the copolyester described above. The invention also relates to articles made from the copolyesters described above. The invention further relates to a method of determining the melt strength and sag of a polyester.

    摘要翻译: 本发明涉及一种共聚酯,其具有(a)二羧酸成分的重复单元,其具有80-100摩尔%的对苯二甲酸或其相应的酯,和0至20摩尔%的具有较少的改性芳族二羧酸 不超过20个碳原子或其相应的酯,其中二羧酸组分的总摩尔%等于100摩尔%; 和(b)二元醇组分的重复单元,其具有5至85摩尔%的2,2,4,4-四甲基-1,3-环丁二醇,15至95摩尔%的乙二醇和至少1摩尔 %的具有3至16个碳原子的改性二醇,其中二醇组分的总摩尔%等于100摩尔%。 本发明还涉及制备上述共聚聚酯的方法。 本发明还涉及由上述共聚酯制成的制品。 本发明还涉及确定聚酯的熔体强度和下垂的方法。

    Blow-molding polyesters from terephthalic acid, 2, 2, 4,
4-tetramethyl-1,3-cyclobutanediol, and ethylene glycol
    4.
    发明授权
    Blow-molding polyesters from terephthalic acid, 2, 2, 4, 4-tetramethyl-1,3-cyclobutanediol, and ethylene glycol 失效
    来自对苯二甲酸,2,4,4-四甲基-1,3-环丁二醇和乙二醇的吹塑聚酯

    公开(公告)号:US5989663A

    公开(公告)日:1999-11-23

    申请号:US997629

    申请日:1997-12-23

    摘要: The invention relates to a copolyester, having (a) a repeat unit of a dicarboxylic acid component, having from 80 to 100 mole % terephthalic acid or the corresponding ester thereof, and from 0 to 20 mole % of a modifying aromatic dicarboxylic acid having less than or equal to 20 carbon atoms or the corresponding ester thereof, wherein the total mole % of dicarboxylic acid component is equal to 100 mole %; and (b) a repeat unit of a glycol component, having from 5 to 85 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol, ethylene glycol of from 15 to 95 mole %, and at least 1 mole % of a modifying glycol having from 3 to 16 carbon atoms, wherein the total mole % of glycol component is equal to 100 mole %. The invention also relates to a method of making the copolyester described above. The invention also relates to articles made from the copolyesters described above. The invention further relates to a method of determining the melt strength and sag of a polyester.

    摘要翻译: 本发明涉及一种共聚酯,其具有(a)二羧酸成分的重复单元,其具有80-100摩尔%的对苯二甲酸或其相应的酯,和0至20摩尔%的具有较少的改性芳族二羧酸 不超过20个碳原子或其相应的酯,其中二羧酸组分的总摩尔%等于100摩尔%; 和(b)二元醇组分的重复单元,其具有5至85摩尔%的2,2,4,4-四甲基-1,3-环丁二醇,15至95摩尔%的乙二醇和至少1摩尔 %的具有3至16个碳原子的改性二醇,其中二醇组分的总摩尔%等于100摩尔%。 本发明还涉及制备上述共聚聚酯的方法。 本发明还涉及由上述共聚酯制成的制品。 本发明还涉及确定聚酯的熔体强度和下垂的方法。

    Polycarbonate and polyester blends
    5.
    发明授权
    Polycarbonate and polyester blends 失效
    聚碳酸酯和聚酯共混物

    公开(公告)号:US5942585A

    公开(公告)日:1999-08-24

    申请号:US996458

    申请日:1997-12-23

    IPC分类号: C08L67/02 C08L69/00

    CPC分类号: C08L67/02 C08L69/00

    摘要: Disclosed are clear blends comprising:(A) from 1 to 99 percent by weight of a polycarbonate comprising a diol component comprising from 5 to 100 mol percent units of a diphenol or mixture of diphenols having the formula ##STR1## (B) from 1 to 99 percent by weight of a polyester comprising (a) a dicarboxylic acid component comprising from 80 to 100 mol percent 1,4-cyclohexane-dicarboxylic acid units; and from 0 to about 20 mol percent modifying dicarboxylic acid units having from 2 to 20 carbons, and(b) a glycol component comprising from 10 to 75 mol percent 2,2,4,4-tetramethyl-1,3-cyclobutanediol units, from 25 to 90 mol percent 1,4-cyclohexanedimethanol units, and from 0 to 10 mol percent modifying glycol units having 2 to 16 carbons,wherein the total units of said polyester is equal to 200 mol percent; wherein said blend is clear and the total weight percent of said polycarbonate (A) and said polyester (B) is equal to 100 weight percent.

    摘要翻译: 公开了透明的共混物,其包含:(A)1至99重量%的包含二醇组分的聚碳酸酯,所述二醇组分包含5至100摩尔%的双酚或具有式(B)的二酚的混合物1至99% 聚酯的重量包含(a)包含80-100摩尔%的1,4-环己烷二羧酸单元的二羧酸组分; 和0至约20摩尔%修饰具有2至20个碳的二羧酸单元,和(b)包含10至75摩尔%的2,2,4,4-四甲基-1,3-环丁二醇单元的二元醇组分, 25至90摩尔%的1,4-环己烷二甲醇单元和0至10摩尔%的具有2至16个碳的改性二醇单元,其中所述聚酯的总单元等于200摩尔%; 其中所述共混物是透明的,并且所述聚碳酸酯(A)和所述聚酯(B)的总重量百分比等于100重量%。

    Optical interface detection system for centrifugal blood processing
    7.
    发明授权
    Optical interface detection system for centrifugal blood processing 失效
    用于离心血液处理的光学界面检测系统

    公开(公告)号:US06254784B1

    公开(公告)日:2001-07-03

    申请号:US08961340

    申请日:1997-10-30

    IPC分类号: B01D1712

    摘要: A centrifuge for continuously separating the various constituents of blood or other biological fluids includes a rotating bowl having high-G and low-G walls. An inwardly directed ramped surface on the high-G wall interacts with an interface region between the separated fluid constituents to provide an optically detectable indication of the position of the interface between the high-G and low-G walls. An optical sensor sensing each passage of the ramped surface past a point develops a changing signal indicative of the interface position. Signal processing circuitry responsive to the signal measures such signal parameters as peak amplitude, signal area and signal shape. By so monitoring these signal parameters, a better indication of actual interface position between the high-G and low-G walls can be obtained. This, in turn, results in better control over centrifuge operation and improved separation of the desired fluid components.

    摘要翻译: 用于连续分离血液或其他生物流体的各种成分的离心机包括具有高G和低G壁的旋转碗。 高G壁上的向内倾斜的表面与分离的流体组分之间的界面区域相互作用,以提供高G和低G壁之间界面的位置的可光学检测的指示。 感测倾斜表面的每个通过点的光学传感器产生指示接口位置的变化信号。 响应于信号的信号处理电路测量诸如峰值幅度,信号面积和信号形状的信号参数。 通过监测这些信号参数,可以获得高G和低G壁之间的实际界面位置的更好的指示。 这反过来导致更好地控制离心机操作和改进所需流体组分的分离。

    Clear blends of polycarbonates and polyesters
    8.
    发明授权
    Clear blends of polycarbonates and polyesters 失效
    透明的聚碳酸酯和聚酯的共混物

    公开(公告)号:US6037424A

    公开(公告)日:2000-03-14

    申请号:US996584

    申请日:1997-12-23

    IPC分类号: C08L67/02 C08L69/00 C08L67/03

    CPC分类号: C08L67/02 C08L69/00

    摘要: A blend of polycarbonates of dihydroxydiphenyl cycloalkanes and optionally 4,4'-isopropylidenediphenol with polyesters from terephthalic acid, isophthalic acid, ethylene glycol and 2,2,4,4-tetramethyl-1,3-cyclobutanediol, having the advantage of being colorless and providing an unexpected amount of impact strength, hardness and heat resistence. The polymer blends are especially suitable for the manufacture of clear molded articles, fibers, sheeting, and film.

    摘要翻译: 二羟基二苯基环烷烃的聚碳酸酯和任选的4,4'-异丙基二苯酚与来自对苯二甲酸,间苯二甲酸,乙二醇和2,2,4,4-四甲基-1,3-环丁二醇的聚酯的共混物,具有无色和 提供突出的冲击强度,硬度和耐热性。 聚合物共混物特别适用于制造透明模制品,纤维,片材和薄膜。