Polyesters
    32.
    发明授权
    Polyesters 有权
    聚酯

    公开(公告)号:US06291122B1

    公开(公告)日:2001-09-18

    申请号:US09660341

    申请日:2000-09-14

    IPC分类号: G03G900

    摘要: A branched polyester resin of the Formula wherein n and m represent randomly repeating segments, and the number of n and m segments in the polymer backbone are each of from about 10 to about 10,000; X is an alkylene group, an olefinic group, or an arylene; Y is an organic dioxy group or radical of I, II, or mixtures thereof; Z is an organic trioxy radical of III, IV, or mixtures thereof; and wherein R and R1 is a hydrogen atom or an alkyl group; G is an alkylene or arylene group, and a is 0 or 1.

    摘要翻译: Formulafherein n和m的支链聚酯树脂是随机重复的链段,聚合物主链中n和m链段的数量分别为约10至约10,000; X是亚烷基,烯基或亚芳基; Y是有机二氧基或I,II的基团或其混合物; Z是III,IV或它们的混合物的有机三氧基; 并且其中R和R 1是氢原子或烷基; G是亚烷基或亚芳基,a是0或1。

    Process for making polyetherester resins having high aromatic diester
    35.
    发明授权
    Process for making polyetherester resins having high aromatic diester 失效
    制备具有高芳族二酯的聚醚酯树脂的方法

    公开(公告)号:US5880225A

    公开(公告)日:1999-03-09

    申请号:US116112

    申请日:1998-07-15

    摘要: A process for making polyetherester resins is disclosed. A glycol ester of an aromatic diacid such as terephthalic acid is reacted with a polyether and a source of a dicarboxylic acid such as maleic anhydride to produce a polyetherester resin, wherein the aromatic diester content may be conveniently adjusted as desired. The process permits the preparation of unsaturated polyetherester resins with relatively high levels of terephthalate repeating units while avoiding the difficulties associated with the direct use of terephthalic acid in previously known procedures. Such unsaturated polyetheresters are useful for making thermoset resins with excellent mechanical and physical properties. New glycol esters based on 2-methyl-1,3-propanediol, and polyester resins and thermosets made from the glycol esters, are also disclosed.

    摘要翻译: 公开了制备聚醚酯树脂的方法。 将芳族二酸如对苯二甲酸的乙二醇酯与聚醚和二羧酸源如马来酸酐反应以制备聚醚酯树脂,其中可以根据需要方便地调节芳族二酯含量。 该方法允许制备具有相对高水平的对苯二甲酸酯重复单元的不饱和聚醚酯树脂,同时避免了在先前已知的方法中直接使用对苯二甲酸的困难。 这种不饱和聚醚酯可用于制备具有优异机械和物理性能的热固性树脂。 还公开了基于2-甲基-1,3-丙二醇的新型二醇酯,以及由二醇酯制成的聚酯树脂和热固性树脂。

    Method and apparatus for secure transmission of video signals
    37.
    发明授权
    Method and apparatus for secure transmission of video signals 失效
    用于视频信号的安全传输的方法和装置

    公开(公告)号:US5555305A

    公开(公告)日:1996-09-10

    申请号:US211279

    申请日:1994-06-13

    摘要: Video signals are sampled at 4Fsc locked onto sub-carrier phase and frequency. The active picture lines of each field are divided into 6 blocks of 47 lines and the active line periods of those lines scrambled on a block by block basis by line order shuffling. The shuffling algorithm is generated by a line shuffling permutator driven by a PRBS generator (controls 36, 38). Active line period samples for one block are written in unscrambled form into a first memory block (32) and samples from the previous block are read out in scrambled form from a second memory block (34) for transmission. The complementary process takes place in the decoder.

    摘要翻译: PCT No.PCT / GB92 / 01786 Sec。 371日期1994年6月13日 102(e)日期1994年6月13日PCT提交1992年9月29日PCT公布。 出版物WO93 / 07718 日期:1993年04月15日视频信号在4Fsc处被采样锁定到子载波相位和频率上。 每个场的活动图像行被划分成47行的6个块,并且这些行的有效行周期按行顺序改组逐个块地加扰。 混洗算法由PRBS发生器驱动的线洗牌排列器产生(对照36,38)。 一个块的有效行周期采样以未加扰的形式写入第一存储器块(32),并且来自前一块的采样以加扰形式从第二存储器块(34)读出以进行传输。 互补过程发生在解码器中。

    Polyester prepolymer showing shape-memory effect
    39.
    发明授权
    Polyester prepolymer showing shape-memory effect 失效
    聚酯预聚物显示形状记忆效应

    公开(公告)号:US5442037A

    公开(公告)日:1995-08-15

    申请号:US301766

    申请日:1994-09-07

    摘要: A shape-memory polyester prepolymer is prepared with at least one kind of dicarboxylic acid component and at least one kind of diol, triol or polyol component in such a way to have unsaturated end group, wherein the dicarboxylic acid component comprises aromatic dicarboxylic acid in an amount of not less than 80% by mole based on the total mole of the dicarboxylic acid component; the diol component comprises a diol containing 2-10 carbon atoms in an amount of not less than 80% by mole based on the total mole of the diol component; a repeating unit of the ester bond ranging in number from 2 to 50; and the end group has crosslinkable, ethylenically unsaturated bond. The prepolymer shows particularly excellent heat resistance and excellent chemical resistance and also exhibits excellent transparency. The prepolymer can be used in a variety of reversible or irreversible purposes, such as pipe coupling, external laminate of pipe, protection ring, O-ring, gap stopper, orthodontic wire, artificial muscles and the like.

    摘要翻译: 形状记忆聚酯预聚物以至少一种二羧酸组分和至少一种二醇,三醇或多元醇组分以具有不饱和端基的方式制备,其中二羧酸组分包括芳族二羧酸 相对于二羧酸成分的总摩尔量为80摩尔%以上的量; 二醇成分含有相对于二醇成分的总摩尔为80摩尔%以上的含有2-10个碳原子的二醇; 酯键的重复单元的数目为2至50; 并且端基具有可交联的烯属不饱和键。 预聚物显示出特别优异的耐热性和优异的耐化学性,并且还表现出优异的透明性。 预聚物可以用于各种可逆或不可逆的目的,例如管接头,管的外部层压板,保护环,O形环,间隙塞子,正畸线,人造肌肉等。

    Low gloss, low melt cross-linked toner resins
    40.
    发明授权
    Low gloss, low melt cross-linked toner resins 失效
    低光泽,低熔点交联调色剂树脂

    公开(公告)号:US5395723A

    公开(公告)日:1995-03-07

    申请号:US953617

    申请日:1992-09-30

    IPC分类号: C08G63/676 G03G9/087 G03G9/00

    摘要: A low melt, low gloss toner resin with low minimum fix temperature and wide fusing latitude contains a linear portion and 20-45% by weight of a cross-linked portion containing high density, cross-linked microgel particles, but substantially free of low density, cross-linked polymer. The resin is particularly suitable for low gloss applications such as black only and highlighting and for high speed fusing, shows excellent offset resistance and wide fusing latitude and superior vinyl offset properties. The resin may be formed by reactive melt mixing.

    摘要翻译: 具有低最低定影温度和宽熔点纬度的低熔度,低光泽调色剂树脂含有线性部分和20-45重量%的含有高密度交联微凝胶颗粒但基本上不含低密度的交联部分 ,交联聚合物。 该树脂特别适用于低光泽应用,例如仅黑色和高亮度,高速熔融,显示出优异的抗折射性和宽的熔融纬度和优异的乙烯基偏移性。 树脂可以通过反应性熔融混合形成。