Process for controlled mixing in a high intensity mixer
    2.
    发明授权
    Process for controlled mixing in a high intensity mixer 失效
    在高强度混合机中控制混合的方法

    公开(公告)号:US4230615A

    公开(公告)日:1980-10-28

    申请号:US962778

    申请日:1978-11-21

    摘要: An apparatus and a process is disclosed for controlled mixing of a mixable material in a high intensity mixer. The system enables instantaneous, precise and continual monitoring of a batch in a high intensity mixer which heretofore could not be achieved. The process comprises the steps of feeding a batch of material into a high intensity mixer, agitating the batch in the mixer, monitoring batch temperature separately from mixer temperature and discharging the batch from the mixer when the batch temperature reaches a final predetermined level. The apparatus includes means for monitoring batch temperature in a high intensity mixer separately from mixer temperature, and means responsive to the batch temperature to discharge the batch when the batch temperature reaches a final predetermined level.

    摘要翻译: 公开了用于在高强度混合器中可混合混合材料的装置和方法。 该系统能够在迄今无法实现的高强度混合器中对批料进行瞬时,精确和持续的监测。 该方法包括以下步骤:将一批材料进料到高强度混合器中,在混合器中搅拌该批料,在批量温度达到最终预定水平时,分批监测批料温度和混合器中的批料。 该装置包括用于独立于混合器温度的高强度混合器中监测批次温度的装置,以及当批料温度达到最终预定水平时响应批料温度排出批料的装置。

    Production of terephthalate esters by degradative transesterification of
scrap or virgin terephthalate polyesters
    4.
    发明授权
    Production of terephthalate esters by degradative transesterification of scrap or virgin terephthalate polyesters 失效
    通过废料或原始对苯二甲酸酯聚酯的降解酯交换反应生产对苯二甲酸酯

    公开(公告)号:US5319128A

    公开(公告)日:1994-06-07

    申请号:US860188

    申请日:1992-03-30

    IPC分类号: C07C67/03 C07C67/48 C07C67/60

    CPC分类号: C07C67/48 C07C67/03

    摘要: A process for the production of terephthalate diesters having the following formula (I). ##STR1## Substituents R and R' are the same or different and represent a straight chain, branched or cyclic aliphatic group, an aromatic group, an alkaryl group or an aralkyl group, each group having from 6 to 20 carbon atoms. The process involves reacting a terephthalate polyester with a high molecular weight alcohol or a mixture of high molecular weight alcohols each having from 6 to 20 carbon atoms, in the presence of a catalyst and recovering the desired compound according to formula (I). This process is particularly useful for recycling scrap terephthalate polyester products such as those produced from polyethylene terephthalate (PET), crystallized polyethylene terephthalate (CPET), glycol-modified polyethylene terephthalate copolyester (PETG), polybutylene terephthalate (PBT), polycyclohexanedimethylene terephthalate (PCT), as well as the acid- and glycol-modified copolyesters of PCT, respectively PCTA and PCTG.

    摘要翻译: 一种制备具有下式(I)的对苯二酸酯二酯的方法。 取代基R和R'相同或不同,表示直链,支链或环状脂族基团,芳基,烷芳基或芳烷基,每个基团具有6至20个碳原子。 该方法包括使对苯二甲酸酯聚酯与高分子量醇或各自具有6至20个碳原子的高分子量醇的混合物在催化剂存在下反应并回收根据式(I)的所需化合物。 这种方法对于回收聚对苯二甲酸乙二醇酯(PET),结晶聚对苯二甲酸乙二醇酯(CPET),乙二醇改性的聚对苯二甲酸乙二醇酯共聚酯(PETG),聚对苯二甲酸丁二醇酯(PBT),聚环己烷二亚甲基对苯二酸酯(PCT) ,以及PCT的酸和乙二醇改性的共聚酯,分别为PCTA和PCTG。

    Apparatus for controlled mixing in a high intensity mixer
    5.
    发明授权
    Apparatus for controlled mixing in a high intensity mixer 失效
    用于在高强度混合器中控制混合的装置

    公开(公告)号:US4332479A

    公开(公告)日:1982-06-01

    申请号:US134416

    申请日:1980-03-27

    摘要: An apparatus and a process is disclosed for controlled mixing of a mixable material in a high intensity mixer. The system enables instantaneous, precise and continual monitoring of a batch in a high intensity mixer which heretofore could not be achieved. The process comprises the steps of feeding a batch of material into a high intensity mixer, agitating the batch in the mixer, monitoring batch temperature separately from mixer temperature and discharging the batch from the mixer when the batch temperature reaches a final predetermined level. The apparatus includes means for monitoring batch temperature in a high intensity mixer separately from mixer temperature, and means responsive to the batch temperature to discharge the batch when the batch temperature reaches a final predetermined level.

    摘要翻译: 公开了用于在高强度混合器中可混合混合材料的装置和方法。 该系统能够在迄今无法实现的高强度混合器中对批料进行瞬时,精确和持续的监测。 该方法包括以下步骤:将一批材料进料到高强度混合器中,在混合器中搅拌该批料,在批量温度达到最终预定水平时,分批监测批料温度和混合器中的批料。 该装置包括用于独立于混合器温度的高强度混合器中监测批次温度的装置,以及当批料温度达到最终预定水平时响应批料温度排出批料的装置。

    Moisture cross-linking of vinyl chloride homopolymers and copolymers
    6.
    发明授权
    Moisture cross-linking of vinyl chloride homopolymers and copolymers 失效
    氯乙烯均聚物和共聚物的水分交联

    公开(公告)号:US5880192A

    公开(公告)日:1999-03-09

    申请号:US966579

    申请日:1997-11-10

    CPC分类号: C08K5/5425 C08F259/04

    摘要: A vinyl chloride homopolymer or copolymer composition contains a silane, a compound capable of generating free radicals and a stabilizer comprising a lead compound or an organotin compound which is effective to prevent discoloration and degradation of the homopolymer or copolymer and does not inhibit the grafting of the vinyl silane on the homopolymer or copolymer. The graft homopolymer or copolymer is exposed to moisture to cross-link it, suitably after molding or otherwise fabricating the graft polymer to form an article. There is also provided a method of moisture cross-linking poly(vinyl chloride) and vinyl chloride copolymers.

    摘要翻译: 氯乙烯均聚物或共聚物组合物含有硅烷,能够产生自由基的化合物和包含铅化合物或有机锡化合物的稳定剂,其有效防止均聚物或共聚物的变色和降解,并且不抑制 乙烯基硅烷在均聚物或共聚物上。 将接枝均聚物或共聚物暴露于湿气以使其交联,适当地在模制之后或以其它方式制造接枝聚合物以形成制品。 还提供了一种湿交联聚(氯乙烯)和氯乙烯共聚物的方法。

    Production of terephthalate esters by degradative transesterification of
scrap or virgin terephthalate polyesters
    7.
    发明授权
    Production of terephthalate esters by degradative transesterification of scrap or virgin terephthalate polyesters 失效
    通过废料或原始对苯二甲酸酯聚酯的降解酯交换反应生产对苯二甲酸酯

    公开(公告)号:US5101064A

    公开(公告)日:1992-03-31

    申请号:US494092

    申请日:1990-03-15

    IPC分类号: C07C67/03 C07C67/48

    CPC分类号: C07C67/48 C07C67/03

    摘要: A process for the production of terephthalate diesters having the following formula (I). ##STR1## Substituents R and R' are the same or different and represent a straight chain, branched or cyclic aliphatic group, an aromatic group, an alkaryl group or an aralkyl group, each group having from 6 to 20 carbon atoms. The process involves reacting a terephthalate polyester with a high molecular weight alcohol or a mixture of high molecular weight alcohols each having from 6 to 20 carbon atoms, in the presence of a catalyst and recovering the desired compound according to formula (I). This process is particularly useful for recycling scrap terephthalate polyester products such as those produced from polyethylene terephthalate (PET), crystallized polyethylene terephthalate (CPET), glycol-modified polyethylene terephthalate copolyester (PETG), polybutylene terephthalate (PBT), polycyclohexanedimethylene terephthalate (PCT), as well as the acid- and glycol-modified copolyesters of PCT, respectively PCTA and PCTG.

    摘要翻译: 一种制备具有下式(I)的对苯二酸酯二酯的方法。 取代基R和R'相同或不同,表示直链,支链或环状脂族基团,芳基,烷芳基或芳烷基,每个基团具有6至20个碳原子。 该方法包括使对苯二甲酸酯聚酯与高分子量醇或各自具有6至20个碳原子的高分子量醇的混合物在催化剂存在下反应并回收根据式(I)的所需化合物。 这种方法对于回收聚对苯二甲酸乙二醇酯(PET),结晶聚对苯二甲酸乙二醇酯(CPET),乙二醇改性的聚对苯二甲酸乙二醇酯共聚酯(PETG),聚对苯二甲酸丁二醇酯(PBT),聚环己烷二亚甲基对苯二酸酯(PCT) ,以及PCT的酸和乙二醇改性的共聚酯,分别为PCTA和PCTG。