Blowing agent composition
    1.
    发明授权
    Blowing agent composition 失效
    发泡剂组成

    公开(公告)号:US4692475A

    公开(公告)日:1987-09-08

    申请号:US940873

    申请日:1986-12-10

    IPC分类号: C08J9/10

    CPC分类号: C08J9/103 Y10S521/909

    摘要: A blowing agent composition, comprising: (i) azodicarbonamide; (ii) zinc oxide and/or zinc carbonate; and (iii) at least one member selected from the group consisting of zinc salts of C.sub.1 -C.sub.6 organic acids, and C.sub.1 -C.sub.6 organic carboxamides characterized by a high gas evolution rate. The blowing agent composition may be used in effective amounts in formulations containing a foamable polymer to yield an efficiently gas expanded polymeric composition upon exposure to heat. Suitable C.sub.1 -C.sub.6 organic acids for said zinc salts include straight-chain carboxylic acids, and useful organic carboxamides include formamide.

    摘要翻译: 一种发泡剂组合物,其包含:(i)偶氮二甲酰胺; (ii)氧化锌和/或碳酸锌; 和(iii)选自C1-C6有机酸锌盐和C1-C6有机甲酰胺中的至少一种,其特征在于高的气体逸出速率。 发泡剂组合物可以在含有可发泡聚合物的制剂中有效地使用,以在暴露于热量时产生有效气体发泡的聚合物组合物。 用于所述锌盐的合适的C 1 -C 6有机酸包括直链羧酸,有用的有机羧酰胺包括甲酰胺。

    Process for producing foamed elastomeric compositions
    2.
    发明授权
    Process for producing foamed elastomeric compositions 失效
    生产泡沫弹性体组合物的方法

    公开(公告)号:US4777188A

    公开(公告)日:1988-10-11

    申请号:US948219

    申请日:1986-12-31

    IPC分类号: C08J9/06 C08J9/10

    CPC分类号: C08J9/103 Y10S521/909

    摘要: Foamed elastomeric compositions are produced by a process comprising the steps of (A) forming a blend comprised of (1) a foamable, curable elastomer; (2) a curative; and (3) a blowing agent composition consisting essentially of (i) azodicarbonamide and (ii) at least one member selected from the group consisting of zinc salt of C.sub.1 -C.sub.6 organic acids and C.sub.1 -C.sub.6 carboxamides; and (B) heating such blend to between about 130.degree. C. and about 170.degree. C. for a period of time sufficient to foam and cure such blend.

    Blowing agent composition
    3.
    发明授权

    公开(公告)号:US4655962A

    公开(公告)日:1987-04-07

    申请号:US825401

    申请日:1986-03-25

    IPC分类号: C08J9/06 C08J9/10 C09K3/00

    CPC分类号: C08J9/103 Y10S521/909

    摘要: A blowing agent composition, comprising: (i) azodicarbonamide; (ii) zinc oxide and/or zinc carbonate; and (iii) at least one member selected from the group consisting of zinc salts of C.sub.1 -C.sub.6 organic acids, and C.sub.1 -C.sub.6 organic carboxamides characterized by a high gas evolution rate. The blowing agent composition may be used in effective amounts in formulations containing a foamable polymer to yield an efficiently gas expanded polymeric composition upon exposure to heat. Suitable C.sub.1 -C.sub.6 organic acids for said zinc salts include straight-chain carboxylic acids, and useful organic carboxamides include formamide.

    Tetrabenzylthiuram disulfide/urea cured elastomeric composition
    7.
    发明授权
    Tetrabenzylthiuram disulfide/urea cured elastomeric composition 失效
    四苄基秋兰姆二硫化物/脲固化弹性体组合物

    公开(公告)号:US5326828A

    公开(公告)日:1994-07-05

    申请号:US959507

    申请日:1992-10-09

    CPC分类号: C08K5/21 C08K5/40

    摘要: The current invention relates to the use of tetrabenzylthiuram disulfide/urea curative package for thermosetting rubber elastomers in an environmentally sound method of eliminating undesirable nitrosamines. The unique curative package synergistically increases the cure rate and physical properties of the elastomeric compound while reducing the amount of accelerator needed for vulcanization.

    摘要翻译: 本发明涉及用于消除不需要的亚硝胺的无害环境的方法用于热固性橡胶弹性体的四苄基秋兰姆二硫化物/尿素固化剂包装。 独特的治疗包协同地增加了弹性体化合物的固化速率和物理性质,同时减少了硫化所需的加速剂的量。

    Blowing agent compositions
    8.
    发明授权
    Blowing agent compositions 失效
    发泡剂组合物

    公开(公告)号:US4482650A

    公开(公告)日:1984-11-13

    申请号:US573246

    申请日:1984-01-23

    IPC分类号: C08J9/10

    CPC分类号: C08J9/101 Y10S521/909

    摘要: A blowing agent composition is provided comprising an azodicarbonamid; zinc oxide, zinc carbonate or a zinc salt of C.sub.1 -C.sub.4 organic acid; and an aromatic sulfinic acid or a metal salt of an aromatic sulfinic acid. For each hundred parts by weight of the azodicarbonamid, the zinc oxide, zinc carbonate or zinc salt is 0.25-25 parts by weight and the aromatic sulfinic acid or metal salt is from 1-2000 parts by weight for each 100 parts of the zinc oxide, zinc carbonate or zinc salt. The total weight of the zinc oxide, zinc carbonate or zinc salt plus the aromatic sulfinic acid or metal salt is from 20-25 parts by weight.

    摘要翻译: 提供了包含偶氮二羰胺的发泡剂组合物; 氧化锌,碳酸锌或C1-C4有机酸的锌盐; 和芳香族亚磺酸或芳香族亚磺酸的金属盐。 对于每100重量份的偶氮二羰基酰胺,氧化锌,碳酸锌或锌盐的重量比为0.25-25重量份,芳族亚磺酸或金属盐对于每100份氧化锌为1-2000重量份 ,碳酸锌或锌盐。 氧化锌,碳酸锌或锌盐加芳族亚磺酸或金属盐的总重量为20-25重量份。

    Blowing agent compositions
    9.
    发明授权
    Blowing agent compositions 失效
    发泡剂组合物

    公开(公告)号:US4472536A

    公开(公告)日:1984-09-18

    申请号:US573270

    申请日:1984-01-23

    IPC分类号: C08J9/10

    CPC分类号: C08J9/101 Y10S521/909

    摘要: A blowing agent composition is provided comprising an azodicarbonamid; zinc oxide, zinc carbonate or a zinc salt of C.sub.1 -C.sub.4 organic acid; and an aromatic sulfinic acid or a metal salt of an aromatic sulfinic acid. For each hundred parts by weight of the azodicarbonamid, the zinc oxide, zinc carbonate or zinc salt is 0.24-25 parts by weight and the aromatic sulfinic acid or metal salt is from 1-2000 parts by weight for each 100 parts of the zinc oxide, zinc carbonate or zinc salt. The total weight of the zinc oxide, zinc carbonate or zinc salt plus the aromatic sulfinic acid or metal salt is from 20-25 parts by weight.

    摘要翻译: 提供了包含偶氮二羰胺的发泡剂组合物; 氧化锌,碳酸锌或C1-C4有机酸的锌盐; 和芳香族亚磺酸或芳香族亚磺酸的金属盐。 对于每100份重量的偶氮二羰酰胺,氧化锌,碳酸锌或锌盐为0.24-25重量份,芳族亚磺酸或金属盐对于每100份氧化锌为1-2000重量份 ,碳酸锌或锌盐。 氧化锌,碳酸锌或锌盐加芳族亚磺酸或金属盐的总重量为20-25重量份。

    Blowing agent compositions
    10.
    发明授权

    公开(公告)号:US4444679A

    公开(公告)日:1984-04-24

    申请号:US399518

    申请日:1982-07-19

    IPC分类号: C08J9/06 C08J9/10 C09K3/00

    摘要: A blowing agent composition is provided comprising an azodicarbonamid; zinc oxide, zinc carbonate or a zinc salt of C.sub.1 -C.sub.4 organic acid; and an aromatic sulfinic acid or a metal salt of an aromatic sulfinic acid. For each hundred parts by weight of the azodicarbonamid, the zinc oxide, zinc carbonate or zinc salt is 0.25-25 parts by weight and the aromatic sulfinic acid or metal salt is from 1-2000 parts by weight for each 100 parts of the zinc oxide, zinc carbonate or zinc salt. The total weight of the zinc oxide, zinc carbonate or zinc salt plus the aromatic sulfinic acid or metal salt is from 20-25 parts by weight.