Gem-diperoxyesters
    1.
    发明授权
    Gem-diperoxyesters 失效
    宝石双过氧化物

    公开(公告)号:US4443376A

    公开(公告)日:1984-04-17

    申请号:US424820

    申请日:1982-09-27

    摘要: Gem-diperoxyesters of the formula: ##STR1## where R is selected from methyl and ethyl; R.sub.1 is ethyl when R is ethyl; R.sub.1 is hydroxyalkyl of 1 to 7 carbon atoms when R is methyl; and each R.sub.2 is ##STR2## where each of R.sub.3, R.sub.4, and R.sub.5 is selected from hydrogen and alkyl, provided not more than one of R.sub.3, R.sub.4, and R.sub.5 is hydrogen, R.sub.3, R.sub.4, and R.sub.5 collectively containing from 2 to 12 carbon atoms.The compounds are particularly efficient at varying temperatures from ambient to 60.degree. C. for the initiation of the polymerization of vinyl chloride. They also have high efficiency in the curing of polyester resins and in the polymerization of other monomers and comonomers having ethylenic unsaturation.

    摘要翻译: 下式的Gem-diperoxyester:其中R选自甲基和乙基; 当R为乙基时,R 1为乙基; 当R为甲基时,R 1为1至7个碳原子的羟烷基; 并且每个R 2是,其中R 3,R 4和R 5各自选自氢和烷基,条件是不多于一个R 3,R 4和R 5是氢,R 3,R 4和R 5共同含有2至12个 碳原子。 该化合物在环境温度至60℃的不同温度下特别有效,用于引发氯乙烯的聚合。 它们在聚酯树脂的固化和其它单体和具有烯属不饱和键的共聚单体的聚合中也具有高效率。

    Polymerizing unsaturated monomers with gem-diperoxyester catalyst
    2.
    发明授权
    Polymerizing unsaturated monomers with gem-diperoxyester catalyst 失效
    用不饱和双酯催化剂聚合不饱和单体

    公开(公告)号:US4370459A

    公开(公告)日:1983-01-25

    申请号:US166210

    申请日:1980-07-07

    CPC分类号: C08F299/045 C07C409/34

    摘要: Gem-diperoxyesters of the formula: ##STR1## where R is selected from methyl and ethyl; R.sub.1 is ethyl when R is ethyl; R.sub.1 is hydroxyalkyl of 1 to 7 carbon atoms when R is methyl; and each R.sub.2 is ##STR2## where each of R.sub.3, R.sub.4, and R.sub.5 is selected from hydrogen and alkyl, provided not more than one of R.sub.3, R.sub.4, and R.sub.5 is hydrogen, R.sub.3, R.sub.4, and R.sub.5 collectively containing from 2 to 12 carbon atoms.The compounds are particularly efficient at varying temperatures from ambient to 60.degree. C. for the initiation of the polymerization of vinyl chloride. They also have high efficiency in the curing of polyester resins and in the polymerization of other monomers and comonomers having ethylenic unsaturation.

    摘要翻译: 下式的Gem-diperoxyester:其中R选自甲基和乙基; 当R为乙基时,R 1为乙基; 当R为甲基时,R 1为1至7个碳原子的羟烷基; 并且每个R 2是,其中R 3,R 4和R 5各自选自氢和烷基,条件是不多于一个R 3,R 4和R 5是氢,R 3,R 4和R 5共同含有2至12个 碳原子。 该化合物在环境温度至60℃的不同温度下特别有效,用于引发氯乙烯的聚合。 它们在聚酯树脂的固化和其它单体和具有烯属不饱和键的共聚单体的聚合中也具有高效率。

    Unsaturated polyester resin foams and methods of preparation
    4.
    发明授权
    Unsaturated polyester resin foams and methods of preparation 失效
    不饱和聚酯树脂泡沫及其制备方法

    公开(公告)号:US4216294A

    公开(公告)日:1980-08-05

    申请号:US910259

    申请日:1978-05-30

    摘要: Unsaturated polyester resin foams or cellular structures of varying low densities are prepared quickly at ambient temperatures from an admixture which comprises a liquid unsaturated curable polyester resin, an organic isocyanate compound, a suitable surfactant, an accelerator and a particular combination of peroxide curing agents, which also serves to initiate the release of gases that permit expansion of the resin in a controlled manner to obtain a foamed structure.

    摘要翻译: 不饱和聚酯树脂泡沫或不同密度的多孔结构物在环境温度下从包含液体不可固化聚酯树脂,有机异氰酸酯化合物,合适的表面活性剂,促进剂和过氧化物固化剂的特定组合的混合物快速制备,其中 还用于启动允许以受控方式膨胀树脂以获得泡沫结构的气体释放。

    T-Octyl silicon peroxides
    5.
    发明授权
    T-Octyl silicon peroxides 失效
    叔辛基过氧化硅

    公开(公告)号:US4198337A

    公开(公告)日:1980-04-15

    申请号:US945290

    申请日:1978-09-25

    CPC分类号: C07F7/0894

    摘要: A silicon peroxide selected from the formulas:(R').sub.4-n --Si--(OOR).sub.n (a) ##STR1## wherein n is an integer of 1-3; R is a t-octyl group in which a tertiary carbon atom is directly bonded to the peroxy group; and R' is selected from alkyl, phenyl, and alkenyl (provided n is not more than 2), and a carbon chain which forms a saturated heterocyclic ring with the silicon atom, each R' group having up to about 10 carbon atoms. Typical is trimethyl (2,4,4-trimethyl-2-pentylperoxy) silane. These molecules are useful as catalysts for curing polyester resins and are particularly advantageous as crosslinking agents for high density polyethylene in that crosslinking is effected at lower temperatures than required by the prior art.

    摘要翻译: 选自下式的硅氧烷:(R')4-n-Si-(OOR)n(a)其中n是1-3的整数; R是叔碳原子直接与过氧基键合的叔辛基; 并且R'选自烷基,苯基和烯基(提供n不大于2)和与硅原子形成饱和杂环的碳链,每个R'基团具有至多约10个碳原子。 典型的是三甲基(2,4,4-三甲基-2-戊基过氧)硅烷。 这些分子可用作固化聚酯树脂的催化剂,并且作为用于高密度聚乙烯的交联剂是特别有利的,因为在比现有技术要求低的温度下进行交联。

    Crosslinking high density polyethylene with t-octyl silicon peroxides
    6.
    发明授权
    Crosslinking high density polyethylene with t-octyl silicon peroxides 失效
    交联高密度聚乙烯与叔辛基过氧化硅

    公开(公告)号:US4245056A

    公开(公告)日:1981-01-13

    申请号:US97003

    申请日:1979-11-23

    IPC分类号: C07F7/08 C08K5/5419 C08F8/06

    摘要: A silicon peroxide selected from the formulas:(R').sub.4-n --Si--(OOR).sub.n (a) ##STR1## wherein n is an integer of 1-3; R is a t-octyl group in which a tertiary carbon atom is directly bonded to the peroxy group; and R' is selected from alkyl, phenyl, and alkenyl (provided n is not more than 2), and a carbon chain which forms a saturated heterocyclic ring with the silicon atom, each R' group having up to about 10 carbon atoms. Typical is trimethyl (2,4,4-trimethyl-2-pentylperoxy) silane. These molecules are useful as catalysts for curing polyester resins and are particularly advantageous as crosslinking agents for high density polyethylene in that crosslinking is effected at lower temperatures than required by the prior art.

    摘要翻译: 选自下式的硅氧烷:(R')4-n-Si-(OOR)n(a)其中n是1-3的整数; R是叔碳原子直接与过氧基键合的叔辛基; 并且R'选自烷基,苯基和烯基(提供n不大于2)和与硅原子形成饱和杂环的碳链,每个R'基团具有至多约10个碳原子。 典型的是三甲基(2,4,4-三甲基-2-戊基过氧)硅烷。 这些分子可用作固化聚酯树脂的催化剂,并且作为用于高密度聚乙烯的交联剂是特别有利的,因为在比现有技术要求低的温度下进行交联。

    Di(2-methyl-2-phenyl propyl) peroxy dicarbonate and other novel
(2-alkyl-2-phenyl) substituted peroxy dicarbonates
    9.
    发明授权
    Di(2-methyl-2-phenyl propyl) peroxy dicarbonate and other novel (2-alkyl-2-phenyl) substituted peroxy dicarbonates 失效
    二(2-甲基-2-苯基丙基)过氧化二碳酸酯和其他新型(2-烷基-2-苯基)取代的过氧化二碳酸酯

    公开(公告)号:US4285877A

    公开(公告)日:1981-08-25

    申请号:US112872

    申请日:1980-01-17

    摘要: Novel peroxydicarbonates are provided in which the alkyl carbonate moiety is 2-alkyl-2-phenyl substituted. The compounds are useful as polymerization initiators of ethylenically unsaturated monomers, such a vinyl chloride, and as catalysts of unsaturated polyester resins. The subject peroxydicarbonates are characterized in that they are solid at room temperature, have ambient temperature stability in spite of a low 10 hour half-life temperature, and can normally be transported and stored without refrigeration.

    摘要翻译: 提供了新的过氧化二碳酸酯,其中烷基碳酸酯部分是2-烷基-2-苯基取代的。 这些化合物可用作烯属不饱和单体如氯乙烯的聚合引发剂,和作为不饱和聚酯树脂的催化剂。 本发明的过氧化二碳酸酯的特征在于它们在室温下是固体,尽管具有低的10小时半衰期温度,但具有环境温度稳定性,并且通常可以在不冷却的情况下运输和储存。

    2-Chloro-2-alkyl substituted peroxyesters
    10.
    发明授权
    2-Chloro-2-alkyl substituted peroxyesters 失效
    2-氯-2-烷基取代的过氧酯

    公开(公告)号:US4278612A

    公开(公告)日:1981-07-14

    申请号:US98010

    申请日:1979-11-28

    摘要: Novel mono and di peroxyesters characterized by chloro-substitution of a tertiary carbon atom at the alpha position relative to the carbonyl group(s), the monoperoxyesters having no less than 9 carbon atoms and the diperoxyesters having no less than 16 carbon atoms, are utilized as polymerization initiators. Typical is the polymerization of styrene and the copolymerization of vinyl chloride and vinyl acetate.

    摘要翻译: 特征在于相对于羰基在α位上的叔碳原子的氯取代,不少于9个碳原子的单过氧酯和不低于16个碳原子的二过氧酯的新型单和二过氧酯 作为聚合引发剂。 典型的是苯乙烯的聚合和氯乙烯和乙酸乙烯酯的共聚。