Molding compositions based on high molecular weight polyalkylene
terephthalates
    2.
    发明授权
    Molding compositions based on high molecular weight polyalkylene terephthalates 失效
    基于高分子量聚对苯二甲酸亚烷基酯的成型组合物

    公开(公告)号:US4550148A

    公开(公告)日:1985-10-29

    申请号:US691826

    申请日:1985-01-16

    摘要: Improved molding compositions based on high-molecular polyalkylene terephthalates are obtained by heating at 240.degree.-300.degree. C. a melt containing a mixture of(A) a polyalkylene terephthalate having a viscosity number J of at least 50 cm.sup.3 /g, and(B) 0.05-2.5 parts by weight, based on 100 parts by weight of the molding composition of a cyclic, trimerized isophorone diisocyanate or an oligomer thereof with a degree of oligomerization of 2-5 with an isocyanate functionality of 3-7.

    摘要翻译: 通过在240-300℃下加热含有(A)粘度为J至少为50cm 3 / g的聚对苯二甲酸亚烷基酯与(B)的混合物的熔体,得到改进的基于高分子聚对苯二甲酸亚烷基酯的模塑组合物 )0.05-2.5重量份,基于100重量份的模塑组合物,其低聚度为2-5的环状三聚异佛尔酮二异氰酸酯或其低聚物,异氰酸酯官能度为3-7。

    Polybutylene terephthalate molding composition with high cold impact
strength and amenable to thermoplastic processing
    3.
    发明授权
    Polybutylene terephthalate molding composition with high cold impact strength and amenable to thermoplastic processing 失效
    聚对苯二甲酸丁二醇酯成型组合物具有高抗冲击强度,适合热塑性加工

    公开(公告)号:US4521554A

    公开(公告)日:1985-06-04

    申请号:US582645

    申请日:1984-02-22

    IPC分类号: C08K5/092 C08L67/02

    CPC分类号: C08K5/092 C08L67/02

    摘要: A molding composition having cold impact strength and amenable to thermoplastic processing, comprises(A) 66-95% by weight of polybutylene terephthalate with a viscosity number (J) of 70 to 240 cc/g and(B) 34-5% by weight of a reaction product of1. 99-75% by weight of an ethylene/.alpha.-olefin/diene terpolymer having a Mooney viscosity in the range from 30 to 130 and2. 1-25% by weight of bicyclo[2,2,2]-2,3;5,6-dibenzooctadiene-(2,5)-dicarboxylic acid-(7,8)-anhydride.

    摘要翻译: 具有耐冲击强度且耐热塑性加工的成型组合物包含(A)66-95重量%的粘度(J)为70-240cc / g的聚对苯二甲酸丁二醇酯和(B)34-5重量% 的重量比为99-75%的乙烯/α-烯烃/二烯三元共聚物,其门尼粘度在30-130和2.1-5.5%(重量)的双环[2,2, 2] -2,3; 5,6-二苯并辛二烯 - (2,5) - 二羧酸 - (7,8) - 酐。

    Process for the production of cyclic esters of undecanedioic acid
    6.
    发明授权
    Process for the production of cyclic esters of undecanedioic acid 失效
    生产无机酸循环体的方法

    公开(公告)号:US4136098A

    公开(公告)日:1979-01-23

    申请号:US881932

    申请日:1978-02-28

    IPC分类号: C07D321/00

    CPC分类号: C07D321/00

    摘要: A process for the production of cyclic esters of undecanedioic acid with aliphatic diols comprising thermolyzing the corresponding linear polyesters derived from said acid and said diols under reduced pressure at temperatures of 200.degree.-300.degree. C in the presence of organotin and phosphonate catalysts, wherein the organotin catalyst is of the formula ##STR1## wherein R.sub.1 and R.sub.2 are alkyl of 1-18 carbon atoms, or aryl or aralkyl each of 6-36 carbon atoms, and the phosphonate is O,O-dialkyl-(3,5-di-tert-butyl-4-hydroxybenzyl)-phosphonate, the alkyl groups of which each contain 2-18 carbon atoms.

    Process for the production of cyclic diesters of dodecanedioic acid
    7.
    发明授权
    Process for the production of cyclic diesters of dodecanedioic acid 失效
    过氧化氢循环过程的生产工艺

    公开(公告)号:US4105672A

    公开(公告)日:1978-08-08

    申请号:US734013

    申请日:1976-10-19

    CPC分类号: C07D321/00

    摘要: Cyclic esters of dodecanedioic acid with aliphatic diols of 2-12 carbon atoms in the chain and substituted by up to two alkyl of 1-4 carbon atoms, are produced by thermolysis of corresponding linear polyesters under reduced pressure in the presence of catalysts by subjecting the linear polyesters to thermolysis at temperatures between 200.degree. and 300.degree. C., and by utilizing as catalyst a tin(II) salt of an aliphatic monocarboxylic acid of up to 18 carbon atoms, of an aromatic or araliphatic monocarboxylic acid of up to 36 carbon atoms, of an aliphatic or aromatic hydroxy-, poly-, ketocarboxylic acid or of a dicarboxylic acid of up to 18 carbon atoms; or a mixture of an organotin compound of the formula ##STR1## wherein R.sub.1 and R.sub.2 are alkyl of 1-18 carbon atoms, or aryl or aralkyl of 6-36 carbon atoms, and an O,O-dialkyl-(3,5-di-tert.-butyl-4-hydroxybenzyl)-phosphonate wherein each alkyl is of 2-18 carbon atoms.

    Process for the production of cyclic diesters of dodecanedioic acid
    9.
    发明授权
    Process for the production of cyclic diesters of dodecanedioic acid 失效
    十二烷二酸的环状二酯的制备方法

    公开(公告)号:US4157330A

    公开(公告)日:1979-06-05

    申请号:US867566

    申请日:1978-01-06

    IPC分类号: C07D321/00

    CPC分类号: C07D321/00

    摘要: Cyclic esters of dodecanedioic acid with aliphatic diols of 2-12 carbon atoms in the chain and substituted by up to two alkyl of 1-4 carbon atoms, are produced by thermolysis of corresponding linear polyesters under reduced pressure in the presence of catalysts by subjecting the linear polyesters to thermolysis at temperatures between 200.degree. and 300.degree. C., and by utilizing as catalyst a tin(II) salt of an aliphatic monocarboxylic acid of up to 18 carbon atoms, of an aromatic or araliphatic monocarboxylic acid of up to 36 carbon atoms, of an aliphatic or aromatic hydroxy-, poly-, ketocarboxylic acid or of a dicarboxylic acid of up to 18 carbon atoms; or a mixture of an organotin compound of the formula ##STR1## wherein R.sub.1 and R.sub.2 are alkyl of 1-18 carbon atoms, or aryl or aralkyl of 6-36 carbon atoms, and an O,O-dialkyl-(3,5-di-tert.-butyl-4-hydroxybenzyl)-phosphonate wherein each alkyl is of 2-18 carbon atoms.

    摘要翻译: 通过在催化剂存在下,通过在减压下热解相应的线型聚酯,在链中存在十二烷二酸与链中2-12个碳原子的脂肪族二醇并被至多两个1-4个碳原子的烷基取代的环酯, 线性聚酯在200-300℃的温度下进行热分解,并且通过使用至多36个碳原子的芳族或芳脂族单羧酸的至多18个碳原子的脂族单羧酸的锡(II)盐作为催化剂, 脂族或芳族羟基,聚 - ,酮羧酸或至多18个碳原子的二羧酸的原子; 或其中R 1和R 2为1-18个碳原子的烷基或6-36个碳原子的芳基或芳烷基的式(ⅩⅧ)的有机锡化合物和O,O-二烷基 - (3,5- 二叔丁基-4-羟基苄基) - 膦酸酯,其中每个烷基具有2-18个碳原子。