Esterification process with calcium hydroxyaryl
phosphonate-organosilicon heterocycle catalyst system
    101.
    发明授权
    Esterification process with calcium hydroxyaryl phosphonate-organosilicon heterocycle catalyst system 失效
    羟基芳基膦酸钙 - 有机硅杂环催化剂体系的酯化过程

    公开(公告)号:US4775497A

    公开(公告)日:1988-10-04

    申请号:US922919

    申请日:1986-10-24

    CPC分类号: C09F1/04 C08G63/87

    摘要: An esterification process particularly for the preparation of rosin esters, polyesters and polymeric esters wherein aliphatic or aromatic carboxylic acids are reacted with appropriate alcohols in the presence of catalytic amounts of a mixture of a calcium hydroxyaryl phosphonate and an organosilicon heterocycle, the presence of said mixture serving to reduce the time necessary for complete esterification and to provide esters with increased oxidation stability and better color.

    摘要翻译: 特别是用于制备松香酯,聚酯和聚合酯的酯化方法,其中在催化量的羟基芳基膦酸钙和有机硅杂环的混合物存在下,将脂族或芳族羧酸与合适的醇反应,所述混合物的存在 用于减少完全酯化所需的时间,并提供具有增加的氧化稳定性和更好颜色的酯。

    Hindered silicon ester stabilizers
    104.
    发明授权
    Hindered silicon ester stabilizers 失效
    受阻硅酯稳定剂

    公开(公告)号:US4636573A

    公开(公告)日:1987-01-13

    申请号:US773962

    申请日:1985-09-09

    摘要: Compounds of the formulae I and II ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are independently hydrogen, alkyl of 1 to 18 carbon atoms, cycloalkyl of 5 to 8 carbon atoms, phenyl, phenyl substituted by alkyl of 1 to 18 carbon atoms, aralkyl of 7 to 9 carbon atoms or said aralkyl substituted by alkyl of 1 to 12 carbon atoms,R.sup.6 and R.sup.7 are independently alkyl having 1 to 30 carbon atoms, cycloalkyl of 5 to 8 carbon atoms, phenyl, phenyl substituted by alkyl of 1 to 18 carbon atoms, aralkyl of 7 to 9 carbon atoms or said aralkyl substituted by alkyl of 1 to 12 carbon atoms;A is a direct bond, a methylene or an ethylene radical,B is an alkanediyl radical of 2 to 10 carbon atoms, the radical of formula --CH.sub.2 CH.sub.2 --S--CH.sub.2 CH.sub.2 -- or of the formula III--CH.sub.2 CH.sub.2 --(O--CH.sub.2 CH.sub.2).sub.m -- (III), wherein m is an integer from 1 to 4, B also denotes a phenylene radical or a biphenylene radical interrupted by an oxygen or a sulfur atom or by the group of formula --C(CH.sub.3).sub.2 --; andn is an integer from 2 to 100.

    摘要翻译: 式I和II的化合物其中R 1,R 2,R 3,R 4和R 5独立地为氢,1至18个碳原子的烷基,5至8个碳原子的环烷基,苯基 由碳原子数1〜18的烷基取代的苯基,碳原子数7〜9的芳烷基或碳原子数为1〜12的烷基取代的芳烷基,R6和R7独立为碳原子数1〜30的烷基,碳原子数为5〜8的烷基 碳原子,苯基,被1至18个碳原子的烷基取代的苯基,7至9个碳原子的芳烷基或被1至12个碳原子的烷基取代的所述芳烷基; A是直接键,亚甲基或亚乙基,B是2至10个碳原子的烷二基,式-CH 2 CH 2 -S-CH 2 CH 2 - 或式III -CH 2 CH 2 - (O-CH 2 CH 2)m的基团 - (III),其中m是1至4的整数,B也表示被氧或硫原子间隔的亚苯基或亚联苯基,或由式-C(CH 3)2 - 基团所组成; n为2〜100的整数。

    Tri- and tetra-(substituted hydroxyphenylthio) alkane and cycloalkane
stabilizers
    105.
    发明授权
    Tri- and tetra-(substituted hydroxyphenylthio) alkane and cycloalkane stabilizers 失效
    三 - 和四 - (取代羟基苯硫基)烷烃和环烷烃稳定剂

    公开(公告)号:US4612341A

    公开(公告)日:1986-09-16

    申请号:US777895

    申请日:1985-09-19

    摘要: Organic materials are stabilized against thermal, oxidative and photo-degradation by incorporating therein an effective amount of a compound of formula I ##STR1## wherein T.sub.1 and T.sub.2 independently are alkyl, cycloalkyl, phenyl, aralkyl, T.sub.2 may also be hydrogen, T is alkyl, phenyl or substituted hydroxyphenyl, E is a direct bond, alkylene, cycloalkylene, phenylene or --CH.sub.2 CH(ST)CH.sub.2 --, T.sub.3 and T.sub.4 are independently hydrogen, alkyl or cycloalkyl; or together are alkylene, T.sub.5 is hydrogen, alkyl or phenyl, n is 1 or 2, t is 0 or 1, and t is 2-n. Polyolefins, ABS resins, natural and synthetic rubbers and polyesters are particularly well stabilized by the compounds of formula I.

    摘要翻译: 通过在其中加入有效量的式I化合物(I),其中T1和T2独立地是烷基,环烷基,苯基,芳烷基,T2也可以是氢,有机材料稳定,耐热,氧化和光降解, T是烷基,苯基或取代的羟基苯基,E是直接键,亚烷基,亚环烷基,亚苯基或-CH 2 CH(ST)CH 2 - ,T 3和T 4独立地是氢,烷基或环烷基; 或一起是亚烷基,T 5是氢,烷基或苯基,n是1或2,t是0或1,t是2-n。 聚烯烃,ABS树脂,天然和合成橡胶和聚酯通过式I化合物特别好地稳定。

    Dioxasilepin and dioxasilocin stabilizers
    106.
    发明授权
    Dioxasilepin and dioxasilocin stabilizers 失效
    二氧杂环己烷和二氧杂二环稳定剂

    公开(公告)号:US4582870A

    公开(公告)日:1986-04-15

    申请号:US689277

    申请日:1985-01-07

    摘要: Hindered silane compounds of the formula ##STR1## are prepared by the reaction of the appropriate silane and phenol compounds, said hindered silanes being useful as stabilizers of organic polymers such as polyolefins, vinyl halide polymers, elastomers, polyesters and polycarbonates.

    摘要翻译: 通过适当的硅烷和酚化合物的反应制备式“IMAGE”的受阻硅烷化合物,所述受阻硅烷可用作有机聚合物如聚烯烃,卤乙烯聚合物,弹性体,聚酯和聚碳酸酯的稳定剂。