PROCESS FOR MAKING POLYBUTYLENE TEREPHTHALATE (PBT) FROM POLYETHYLENE TEREPHTHALATE (PET)
    1.
    发明申请
    PROCESS FOR MAKING POLYBUTYLENE TEREPHTHALATE (PBT) FROM POLYETHYLENE TEREPHTHALATE (PET) 有权
    聚苯乙烯聚苯乙烯(PET)制备聚苯乙烯(PBT)的方法

    公开(公告)号:US20070203253A1

    公开(公告)日:2007-08-30

    申请号:US11626684

    申请日:2007-01-24

    IPC分类号: C08J11/04

    摘要: The invention relates to a process for making modified polybutylene terephthalate random copolymers from a polyethylene terephthalate component. In one embodiment, the invention relates to a two step process in which a 1,4-butane diol component reacts with a polyethylene terephthalate component under conditions that depolymerize the polyethylene terephthalate component into a molten mixture and the molten mixture is placed under subatmospheric conditions that produce the modified polybutylene terephthalate random copolymers. In another embodiment, the invention relates to a three step process in which a diol component selected from the group consisting of ethylene glycol, propylene glycol, and combinations thereof reacts with a polyethylene terephthalate component under conditions sufficient to depolymerize the polyethylene terephthalate component into a first molten mixture; and where the first molten mixture is combined with 1,4-butane diol under conditions that create a second molten mixture that is subsequently placed under subatmospheric conditions that produce the modified polybutylene terephthalate random copolymers. The invention also relates to compositions made from processes of the invention.

    摘要翻译: 本发明涉及一种由聚对苯二甲酸乙二醇酯组分制备改性聚对苯二甲酸丁二醇酯无规共聚物的方法。 在一个实施方案中,本发明涉及一种二步法,其中1,4-丁二醇组分在聚对苯二甲酸乙二醇酯组分解聚熔融混合物的条件下与聚对苯二甲酸乙二醇酯组分反应,并将熔融混合物置于低于大气压的条件下 生产改性聚对苯二甲酸丁二醇酯无规共聚物。 在另一个实施方案中,本发明涉及一种三步法,其中选自乙二醇,丙二醇及其组合的二醇组分在足以将聚对苯二甲酸乙二醇酯组分解聚为第一 熔融混合物 并且其中在产生第二熔融混合物的条件下将第一熔融混合物与1,4-丁二醇组合,随后将其置于产生改性聚对苯二甲酸丁二醇酯无规共聚物的低于大气压条件下。 本发明还涉及由本发明的方法制备的组合物。

    Flame retardant fiber reinforced composition with improved flow
    2.
    发明申请
    Flame retardant fiber reinforced composition with improved flow 审中-公开
    阻燃纤维增强组合物具有改善的流动性

    公开(公告)号:US20060084748A1

    公开(公告)日:2006-04-20

    申请号:US11291468

    申请日:2005-11-30

    IPC分类号: C08K3/40 C08K3/04

    CPC分类号: C08K7/04

    摘要: A composition comprising at least one high Tg amorphous resin with a fibrous filler shows improved melt processability. Addition of a sulfonate salt to the compositions gives increased melt flow as well as enhanced flame retardancy in a composition which is substantially free of bromine and chlorine.

    摘要翻译: 包含至少一种高Tg无定形树脂与纤维填料的组合物显示出改善的熔融加工性能。 向组合物中加入磺酸盐使得在基本上不含溴和氯的组合物中增加熔体流动性以及增强的阻燃性。

    Poly aryl ether ketone polymer blends
    6.
    发明申请
    Poly aryl ether ketone polymer blends 有权
    聚芳基醚酮聚合物共混物

    公开(公告)号:US20070219324A1

    公开(公告)日:2007-09-20

    申请号:US11229455

    申请日:2005-09-16

    IPC分类号: C08L61/00

    摘要: Phase separated blends of polyaryl ether ketones, polyaryl ketones, polyether ketones, polyether ether ketones and mixtures thereof with at least one polysulfone etherimide, wherein the polysulfone etherimide has greater than or equal to 50 mole % of the polymer linkages contain at least one aryl sulfone group are described. Such blends have improved load bearing capability at high temperature. In another aspect a high crystallization temperature, especially at fast cooling rates, is achieved

    摘要翻译: 聚芳基醚酮,聚芳基酮,聚醚酮,聚醚醚酮及其与至少一种聚砜醚酰亚胺的混合物的相分离共混物,其中聚砜醚酰亚胺具有大于或等于50摩尔%的聚合物键含有至少一个芳基砜 组被描述。 这种混合物在高温下具有改善的承载能力。 在另一方面,实现了高结晶温度,特别是在快速冷却速率下

    Flame resistant polymer blends
    7.
    发明申请
    Flame resistant polymer blends 有权
    耐火聚合物共混物

    公开(公告)号:US20070100088A1

    公开(公告)日:2007-05-03

    申请号:US11263493

    申请日:2005-10-31

    IPC分类号: C08L67/00 C08L83/04 B32B27/00

    摘要: Blends of siloxane copolymers, notably siloxane polyimides, with polyaryl esters or polyaryl ester carbonates containing linkages derived from resorcinol, show improved flame resistance, as measured by two minute and peak heat release, compared to conventional polycarbonates. In some instances transparent flame retardant blends can also be prepared. The compositions show good melt processability, high impact strength and high elongation, and can be used to make various flame retardant articles including sheets and films.

    摘要翻译: 与常规聚碳酸酯相比,硅氧烷共聚物,特别是硅氧烷聚酰亚胺与含有源自间苯二酚的连接的聚芳基酯或聚芳基酯碳酸酯的共混物显示改善的阻燃性,如通过两分钟和峰值热释放测量的。 在某些情况下,也可制备透明阻燃剂共混物。 该组合物显示出良好的熔融加工性,高冲击强度和高伸长率,并且可以用于制造各种阻燃制品,包括片材和薄膜。

    Annular or tubular shaped articles of novel polymer blends
    8.
    发明申请
    Annular or tubular shaped articles of novel polymer blends 审中-公开
    新型聚合物共混物的环形或管状制品

    公开(公告)号:US20070066740A1

    公开(公告)日:2007-03-22

    申请号:US11314542

    申请日:2005-12-21

    IPC分类号: C08K3/22

    CPC分类号: C08K3/22 C08L79/08

    摘要: The present invention is directed to a tubular article of manufacture in an annular or tubular shape having an outer diameter, an inner diameter and a length comprising one or more materials selected from the group consisting of: a) an immiscible blend of polymers comprising one or more polyetherimides, having more than one glass transition temperature wherein the polyetherimide has a glass transition temperature greater than 217° Celsius; b) a miscible blend of polymers, comprising one or more polyetherimides, having a single glass transition temperature greater than 180° Celsius; or, c) a single polyetherimide having a glass transition temperature of greater than 247° Celsius.

    摘要翻译: 本发明涉及一种环形或管状形状的管状制品,其具有外径,内径和长度,其包括一种或多种选自以下的材料:a)聚合物的不混溶共混物,其包含一种或多种 更多的聚醚酰亚胺,具有多于一个玻璃化转变温度,其中聚醚酰亚胺的玻璃化转变温度大于217℃; b)可混合的聚合物混合物,其包含一种或多种具有大于180℃的单一玻璃化转变温度的聚醚酰亚胺; 或者c)玻璃化转变温度大于247℃的单一聚醚酰亚胺。