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    Process for polymerizing dienes
    1.
    发明授权
    Process for polymerizing dienes 失效
    聚合二烯的方法

    公开(公告)号：US4329439A

    公开(公告)日：1982-05-11

    申请号：US250348

    申请日：1981-04-02

    申请人： Delmar F. Lohr, Jr.

    发明人： Delmar F. Lohr, Jr.

    IPC分类号： C08F4/48 ,  C08F36/04 ,  C08F136/04 ,  C08F136/06 ,  C08F136/08

    CPC分类号： C08F4/48 ,  C08F36/04

    摘要： The catalyst system disclosed herein comprises a combination or a chelate of a hydrocarbyl lithium compound with a dialkylaminoaldehyde dialkyl acetal having the formula R'.sub.2 N--A--CH(OR.sub.2) wherein R and R' are alkyl groups of 1-3 carbon atoms and A is a divalent aliphatic group of 1-10, preferably 1-3 carbon atoms, with a direct linkage of no more than 3 carbon atoms between the N and the --CH(OR).sub.2 group. This catalyst system is particularly useful in the polymerization of vinyl compounds such as ethylene, propylene, styrene, butadiene, etc. The process for the polymerization of conjugated dienes produces polymers of excellent properties. For example, with butadiene-1,3 and other appropriate conditions, polybutadiene with high percentages of 1,2-polybutadiene structure are produced.

    摘要翻译： 本文公开的催化剂体系包括烃基锂化合物与具有式R'2N-A-CH（OR2）的二烷基氨基醛二烷基缩醛的组合或螯合物，其中R和R'是1-3个碳原子的烷基和A 是1-10个，优选1-3个碳原子的二价脂族基团，在N和-CH（OR）2基团之间具有不超过3个碳原子的直接键合。 该催化剂体系特别适用于乙烯，丙烯，苯乙烯，丁二烯等乙烯基化合物的聚合。共轭二烯的聚合方法产生优异性能的聚合物。 例如，在丁二烯-1,3和其它合适的条件下，生产出具有高百分比的1,2-聚丁二烯结构的聚丁二烯。

    Stabilization of polyphosphazene vulcanizates with a metal complex
    3.
    发明授权
    Stabilization of polyphosphazene vulcanizates with a metal complex 失效
    用金属络合物稳定聚磷腈硫化橡胶

    公开(公告)号：US4139523A

    公开(公告)日：1979-02-13

    申请号：US900833

    申请日：1978-04-28

    申请人： Delmar F. Lohr, Jr. ,  Russell W. Koch ,  Donald N. Schulz

    发明人： Delmar F. Lohr, Jr. ,  Russell W. Koch ,  Donald N. Schulz

    IPC分类号： C08L85/00 ,  C08K5/35 ,  C08L85/02 ,  C08K5/29

    CPC分类号： C08L85/02

    摘要： When polyphosphazenes are exposed to elevated temperatures, their physical properties often deteriorate. The addition of a stabilizing compound represented by the structure: ##STR1## wherein W is --CRR'-CRR'-- or ##STR2## AND WHEREIN R and R' are selected from the group consisting of hydrogen, alkyl, cycloalkyl, acyl or a mixture thereof, and M is zinc or magnesium; to polyphosphazene rubbers result in improved retention of the physical properties of such polyphosphazenes. Further, the use of additives of this type does not adversely affect the ability of peroxy compounds to cure the polyphosphazenes to form vulcanizates.Especially useful compounds represented by the above structural formula are zinc or magnesium 1,2-bis(2-oxybenzylideneamino)ethylene.

    摘要翻译： {PG，1当聚磷腈暴露于升高的温度时，它们的物理性能常常恶化。 加入由以下结构表示的稳定化合物：{r1 {tc，1 {rb {rd，335588bbdd00 {b1，55 {501 {a，3 {m，1 {a，4 {bn，55 {sd， s，5 O {S，4 {AB，4444 {S，4 M {S，4 {AB，4444 {S，4 O {US，12 {BN，33 {RD，00335588BBDD {BL，33 {501 {A ，2 {BN，D {MR，1 {BN，3 {US，1 {S，5CH {AD，3 N {M，1 {SD，6 {LS，666F {A，2 {LS，D {MR ，1 {AB，333W {AB，555 {M，1 {SD，6 {SB，6 {LS，AAA1 {A，2 {LS，3 {MR，1 N {AD，5CH {RE {PS { PS，其中W是{13 CRR {40-CRR {40 {13 {0或{r1 {tc，1 {rb {bn，3 {rd，ff11447799cc {b1，11 {501 {a，6 {bn，5 {a ，5 {b1，4 {sd，5; {re {PS {PS和WHEREIN R和R {40 {0选自氢，烷基，环烷基，酰基或其混合物，M是锌或 镁; 对聚磷腈橡胶导致改善这种聚磷腈的物理性能的保留。 此外，使用这种添加剂不会不利地影响过氧化合物固化聚磷腈形成硫化橡胶的能力。

    Polymerization catalyst and process for polymerizing dienes therewith
    4.
    发明授权
    Polymerization catalyst and process for polymerizing dienes therewith 失效
    聚合催化剂及其二烯聚合方法

    公开(公告)号：US4280927A

    公开(公告)日：1981-07-28

    申请号：US153477

    申请日：1980-05-27

    申请人： Delmar F. Lohr, Jr.

    发明人： Delmar F. Lohr, Jr.

    IPC分类号： C08F4/48 ,  C08F36/04

    CPC分类号： C08F4/48 ,  C08F36/04

    摘要： The catalyst system disclosed herein comprises a combination or a chelate of a hydrocarbyl lithium compound with a dialkylaminoaldehyde dialkyl acetal having the formula R'.sub.2 N-A-CH(OR.sub.2) wherein R and R'are alkyl groups of 1-3 carbon atoms and A is a divalent aliphatic group of 1-10, preferably 1-3 carbon atoms, with a direct linkage of no more than 3 carbon atoms between the N and the --CH(OR).sub.2 group. This catalyst system is particularly useful in the polymerization of vinyl compounds such as ethylene, propylene, styrene, butadiene, etc. The process for the polymerization of conjugated dienes produces polymers of excellent properties. For example, with butadiene-1,3 and other appropriate conditions, polybutadiene with high percentages of 1,2-polybutadiene structure are produced.

    摘要翻译： 本文公开的催化剂体系包括烃基锂化合物与具有式R'2N-A-CH（OR2）的二烷基氨基醛二烷基缩醛的组合或螯合物，其中R和R'为1-3个碳原子的烷基和A 是1-10个，优选1-3个碳原子的二价脂族基团，在N和-CH（OR）2基团之间具有不超过3个碳原子的直接键合。 该催化剂体系特别适用于乙烯，丙烯，苯乙烯，丁二烯等乙烯基化合物的聚合。共轭二烯的聚合方法产生优异性能的聚合物。 例如，在丁二烯-1,3和其它合适的条件下，生产出具有高百分比的1,2-聚丁二烯结构的聚丁二烯。