Polyfunctional peroxides, vinyl monomer polymerization initiators
comprising the same and process for polymerizing vinyl monomers
employing the same
    122.
    发明授权
    Polyfunctional peroxides, vinyl monomer polymerization initiators comprising the same and process for polymerizing vinyl monomers employing the same 失效
    多官能过氧化物,包含其的乙烯基单体聚合引发剂和使用其的乙烯基单体的聚合方法

    公开(公告)号:US5973181A

    公开(公告)日:1999-10-26

    申请号:US999359

    申请日:1997-12-29

    IPC分类号: C07C409/38 C08F4/36 C08F4/38

    CPC分类号: C07C409/38 C08F4/36

    摘要: The novel polyfunctional peroxides are compounds represented by the following general formula (1):R.sup.1 --CX.sub.3 (1)wherein R.sup.1 represents a linear alkyl group having 1 to 3 carbon atoms; and X represents a group: ##STR1## (wherein R.sup.2 represents a linear or branched alkyl group having 1 to 5 carbon atoms).Such polyfunctional peroxides include 1,1,1-tris(t-butylperoxycarbonyloxymethyl)propane and the like. The polymerization initiators for vinyl monomers comprise such polyfunctional peroxides. In the process for polymerizing vinyl monomers, a vinyl monomer is polymerized employing such polyfunctional peroxide at 60 to 160.degree. C.

    摘要翻译: 新型多官能过氧化物是由以下通式(1)表示的化合物:R1-CX3(1)其中R1表示具有1至3个碳原子的直链烷基; X表示:(式中,R 2表示碳原子数1〜5的直链或支链烷基)。 这种多官能过氧化物包括1,1,1-三(叔丁基过氧羰基氧基甲基)丙烷等。 乙烯基单体的聚合引发剂包括这种多官能过氧化物。 在聚合乙烯基单体的方法中,使用这种多官能过氧化物在60至160℃聚合乙烯基单体。

    Cyclic ketone peroxides as polymer initiators
    123.
    发明授权
    Cyclic ketone peroxides as polymer initiators 失效
    作为聚合物引发剂的环酮过氧化物

    公开(公告)号:US5907022A

    公开(公告)日:1999-05-25

    申请号:US913026

    申请日:1998-02-27

    CPC分类号: C08F4/36

    摘要: A process for the preparation of (co)polymers employing a peroxide composition comprising at least one organic peroxide wherein at least 20% of the total active oxygen content of said organic peroxide is attributable to one or more cyclic ketone peroxides represented by the following formulas I-III: ##STR1## These cyclic ketone peroxides are highly efficient as polymerization initiators. Also new cyclic ketone peroxides and compositions comprising such compounds are provided,

    摘要翻译: PCT No.PCT / EP96 / 01012 Sec。 371日期1998年2月27日 102(e)1998年2月27日PCT 1996年3月6日PCT公布。 公开号WO96 / 27620 日期1996年9月12日一种使用包含至少一种有机过氧化物的过氧化物组合物制备(共)聚合物的方法,其中所述有机过氧化物的总活性氧含量的至少20%归因于一种或多种所表示的环酮过氧化物 通过下式I-III:这些环酮过氧化物作为聚合引发剂是高效的。 还提供新的环酮过氧化物和包含这些化合物的组合物,

    Method for producing a spherical ion exchange resin
    125.
    发明授权
    Method for producing a spherical ion exchange resin 失效
    球形离子交换树脂的制造方法

    公开(公告)号:US5637627A

    公开(公告)日:1997-06-10

    申请号:US603093

    申请日:1996-02-20

    摘要: A method for producing a spherical crosslinked copolymer, which comprises polymerizing a monofunctional addition-polymerizable monomer and at least 0.5% by weight of a polyfunctional addition-polymerizable monomer on the basis of the total weight of monomers by suspension polymerization in an aqueous medium in the presence of a radical polymerization initiator of the following formula (b) which has a decomposition temperature for a half-life period of 10 hours within a range of from 60.degree. to 120.degree. C. and which is capable of forming at least four radical initiating points per molecule by the decomposition:(R.sub.4 --O--O.paren close-st..sub.m R.sub.5 (b)wherein R.sub.4 is a linear or branched C.sub.1-10 alkyl group, R.sub.5 is a m-valent C.sub.4-25 hydrocarbon group, and m is an integer of at least 2, wherein the plurality of R.sub.4 per molecule may be the same or different.

    摘要翻译: 一种球形交联共聚物的制备方法,其包括使单官能加成聚合单体和至少0.5重量%的多官能加成聚合单体以单体的总重量为基础,通过在 存在下述式(b)的自由基聚合引发剂,其在60℃至120℃的范围内具有10小时的半衰期的分解温度,并且能够形成至少四个自由基引发剂 (R4-O-O + 546mR5(b))其中R4是直链或支链C1-10烷基,R5是m价C4-25烃基,m是整数 至少2个,其中每个分子的多个R 4可以相同或不同。

    Process for producing high molecular weight monovinylidene aromatic
polymers
    126.
    发明授权
    Process for producing high molecular weight monovinylidene aromatic polymers 失效
    制备高分子量单亚乙烯基芳族聚合物的方法

    公开(公告)号:US5455321A

    公开(公告)日:1995-10-03

    申请号:US327527

    申请日:1994-10-21

    CPC分类号: C08F12/04

    摘要: A process for producing a monovinylidene aromatic polymer having molecular weight (Mw) greater than 275,000 which comprises polymerizing a monomer mixture comprising a monovinylidene aromatic monomer in the presence of:A) from 10 to 2000 ppm by weight of at least one free radical generating, branching polymerization initiator; andB) from 10 to 2000 ppm of one or more organic gel reduction agent selected from the group consisting of:1) mercaptans, terpenes, halocarbons and halohydrocarbons, such agent having up to 20 carbons,2) distillate recovered from the reaction devolatilization process (recycle), and3) mixtures of 1) and 2).

    摘要翻译: 一种制备分子量(Mw)大于275,000的单亚乙烯基芳族聚合物的方法,该方法包括在以下存在下聚合包含单亚乙烯基芳族单体的单体混合物:A)10至2000ppm重量的至少一种产生自由基的自由基, 支化聚合引发剂; 和B)10至2000ppm的一种或多种选自以下的有机凝胶还原剂:1)硫醇,萜烯,卤代烃和卤代烃,这种具有最多20个碳的试剂,2)从反应脱挥发分过程中回收的馏出物 (循环),和3)1)和2)的混合物。

    Multi-component ethylenically unsaturate peroxyesters
    127.
    发明授权
    Multi-component ethylenically unsaturate peroxyesters 失效
    多组分烯键式不饱和酸酯过氧化物

    公开(公告)号:US5420173A

    公开(公告)日:1995-05-30

    申请号:US220148

    申请日:1994-03-30

    申请人: Jose Sanchez

    发明人: Jose Sanchez

    摘要: A novel and safe ethylenically unsaturated peroxyester composition derived from an ethylenically unsaturated dicarboxylic acid is provided, as well as processes for making and using the composition. The peroxyester composition comprises about 0.04 to about 0.70 mole fraction of a first component compound having a formula I: ##STR1## about 0.32 to about 0.50 mole fraction of a second component compound having a formula II: ##STR2## about 0.04 to about 0.70 mole fraction of a third component compound having a formula III: ##STR3## wherein Q is an unsaturated ethylene divalent radical and R.sup.1 and R.sup.2 are organic substituents. Polymeric-peroxides are prepared via polymerizing the peroxyester compositions. The peroxyester compositions are also used for curing unsaturated polyester resins and for initiating polymerization of ethylenically unsaturated monomers.

    摘要翻译: 提供了一种由烯键式不饱和二羧酸衍生的新型和安全的烯属不饱和过氧酯组合物,以及制备和使用该组合物的方法。 过氧酯组合物包含约0.04至约0.70摩尔分数的具有式I的第一组分化合物:具有式II的第二组分化合物的约0.32至约0.50摩尔分数:约0.04至约 0.70摩尔分数的具有式III的第三组分化合物:其中Q是不饱和乙烯二价基团,R 1和R 2是有机取代基。 通过聚合过氧酯组合物制备聚合物 - 过氧化物。 过氧酯组合物也用于固化不饱和聚酯树脂和用于引发烯属不饱和单体的聚合。

    Suspension polymers based on methyl methacrylate
    128.
    发明授权
    Suspension polymers based on methyl methacrylate 失效
    基于甲基丙烯酸甲酯的悬浮聚合物

    公开(公告)号:US5300601A

    公开(公告)日:1994-04-05

    申请号:US801293

    申请日:1991-12-02

    CPC分类号: C08F20/14

    摘要: Suspension polymers ofa) from 80 to 100% by weight of methyl methacrylate andb) from 0 to 20% by weight of further monomers capable of undergoing free radical polymerization,are obtainable by polymerization at a temperature of from 100.degree. to 140.degree. C. which is virtually constant over the major part of the polymerization time by means of an initiator system consisting of two or more peroxide initiators I having different decomposition temperatures T at which in each case half of the initiator has decomposed after 1 hour, whereinthe initiator I.sub.min having the lowest decomposition temperature has a decomposition temperature T.sub.min of from 60.degree. to 100.degree. C.,the initiator I.sub.max having the highest decomposition temperature has a decomposition temperature T.sub.max of from 100.degree. to 140.degree. C., the difference between T.sub.max and T.sub.min is greater than 10.degree. C. and I.sub.max is a perketal of the general formula (1) ##STR1## where R.sup.1 and R.sup.2 are identical or different alkyl radicals of 1 to 5 carbon atoms and R.sup.1 and R.sup.2 may be bonded to form a 5-membered or 6-membered ring and R.sup.3 is tert-butyl or tert-amyl, andfurther initiators I.sub.n which, if desired, may be concomitantly used have decomposition temperatures T.sub.n of from T.sub.min to T.sub.max.

    摘要翻译: a)80至100重量%的甲基丙烯酸甲酯和b)0至20重量%的能够进行自由基聚合的其它单体的悬浮聚合物可通过在100-140℃的温度下聚合获得 其通过由两种或更多种具有不同分解温度T的过氧化物引发剂组成的引发剂体系在聚合时间的主要部分上几乎恒定,其中在每种情况下,引发剂的一半在1小时后分解,其中引发剂 具有最低分解温度的Imin具有60至100℃的分解温度Tmin,具有最高分解温度的引发剂Imax的分解温度Tmax为100-140℃,Tmax和Tmin之间的差 大于10摄氏度,而Imax为通式(1)(*化学结构*)(1)的庚缩醛,其中R1和R2相同 或不同的1至5个碳原子的烷基,并且R 1和R 2可以键合以形成5元或6元环,并且R 3是叔丁基或叔戊基,以及其它引发剂,其中如果需要,可以是 同时使用的分解温度Tn从Tmin到Tmax。

    Diacyl peroxide composition
    130.
    发明授权
    Diacyl peroxide composition 失效
    二酰基过氧化物组合物

    公开(公告)号:US4560495A

    公开(公告)日:1985-12-24

    申请号:US636202

    申请日:1984-07-31

    申请人: Kenji Kato

    发明人: Kenji Kato

    CPC分类号: C07C407/006 C08F4/38

    摘要: A diacyl peroxide composition comprising 10 to 60 parts by weight of peroxide which comprises dibenzoyl peroxide, either di-m-toluoyl peroxide, or di-o-toluoyl peroxide or m-toluoyl o-toluoyl peroxide and either benzoyl m-toluoyl peroxide or benzoyl o-toluoyl peroxide and 90 to 40 parts by weight of a solvent which dissolves the diacyl peroxides does not cause the deposition of the solid matters when kept below 5.degree. C., the phase separation nor the storage degradation for a long term and can be stored for a long time.The composition usually has peroxide components which are suitable for use in place of benzoyl peroxide and excellent in the handling and the workability.

    摘要翻译: 二酰基过氧化物组合物,其包含10至60重量份的过氧化物,其包括过氧化二苯甲酰,过氧化二甲苯酰胺或过氧化二 - 邻甲苯酰胺或过氧甲苯甲酰甲酰苯甲酰和过氧化苯甲酰或过氧化苯甲酰 过氧化邻甲酰苯甲酰和90至40重量份溶解二酰基过氧化物的溶剂在保持在5℃以下时不会导致固体物质的沉积,长期的相分离和储存降解可以 储存了很长时间。 组合物通常具有适用于代替过氧化苯甲酰的过氧化物成分,处理性和加工性优异。