Saturated, liquid isobutylene polymers terminally functionalized by
special groups
    2.
    发明授权
    Saturated, liquid isobutylene polymers terminally functionalized by special groups 失效
    饱和的液体异丁烯聚合物由特殊的基团末端官能化

    公开(公告)号:US5274182A

    公开(公告)日:1993-12-28

    申请号:US904646

    申请日:1992-06-26

    CPC分类号: C08F8/04 C08F8/06

    摘要: Saturated, liquid, low molecular weight and low-viscosity isobutylene polymers terminally functionalized by special groups, which correspond to the following formula ##STR1## are produced by solution ozonolysis of high molecular weight isobutylene/diene copolymers containing diene monomers, stabilization of the products obtained after the ozone treatment by addition of peroxide decomposers and subsequent reduction with hydrogen in the presence of hydrogenation catalysts under pressures of 10 to 300 bar and at temperatures of 20.degree. to 300.degree. C., optionally in the presence of sulfur or amines or ammonia.

    摘要翻译: 通过特殊基团末端官能化的饱和,液体,低分子量和低粘度异丁烯聚合物,其对应于下式通过溶液臭氧分解产生,所述高分子量异丁烯/二烯共聚物含有二烯单体,所得产物的稳定化 在通过加入过氧化物分解剂进行臭氧处理之后,随后在氢化催化剂存在下,在10-300巴的压力和20-300℃的温度下,任选在硫或胺或氨的存在下用氢还原。

    Process for the preparation of aromatic dicarboxylic acids and aromatic
hydrocarbons
    3.
    发明授权
    Process for the preparation of aromatic dicarboxylic acids and aromatic hydrocarbons 失效
    制备芳族二羧酸和芳香烃的方法

    公开(公告)号:US5183926A

    公开(公告)日:1993-02-02

    申请号:US759794

    申请日:1991-09-13

    摘要: Aromatic dicarboxylic acids of the formula ##STR1## in which R.sup.1, R.sup.2, m, n, and X have the meaning mentioned in the description,can be prepared from the bisphenols, on which they are based, of the formula ##STR2## if the bisphenols are first reacted to give the bissulphonates, the sulphonate groups are removed catalytically with H.sub.2 and the hydrocarbons obtained in this way are doubly acylated in a known manner and the acyl groups are oxidized to the carboxyl groups.Many of the aromatic dicarboxylic acids which can be prepared in this way are new.

    摘要翻译: 其中R 1,R 2,m,n和X具有说明书中提到的含义的式(I)的芳族二羧酸可由其所基于的双酚制备,具有下式:IMAGE 如果双酚首先反应得到双磺酸盐,用H2催化除去磺酸盐基团,以这种方式得到的烃以已知的方式进行双重酰化,酰基被氧化成羧基。 可以以这种方式制备的许多芳族二羧酸是新的。

    Polyester and polyester carbonate from terephthalic or isophthalic acid,
phosgene and phenols with heat resistance and light stability
    4.
    发明授权
    Polyester and polyester carbonate from terephthalic or isophthalic acid, phosgene and phenols with heat resistance and light stability 失效
    来自具有耐热性和光稳定性的正癸酸或异辛酸,磷酸酯和酚醛的聚酯和聚碳酸酯

    公开(公告)号:US5110895A

    公开(公告)日:1992-05-05

    申请号:US566172

    申请日:1990-08-13

    摘要: Polyester and polyester carbonates corresponding to the following formula ##STR1## in which R.sup.1 to R.sup.4, o to r, n, a and b and also X.sup.1 and Y.sup.1 are as defined in the specification,may be obtained by interfacial condensation from bisphenols corresponding to the following formula. ##STR2## aromatic dicarboxylic acid chlorides corresponding to the following formula ##STR3## and phosgene. The new polyesters and polyester carbonates combine outstanding heat resistance and light stability. They may be used both as thermoplastic materials as such or as constituents of polymer blends or even as UV (light) stabilizers or as UV (light)-stabilizing coatings. Accordingly, they have degrees of polycondensation n in the range from 2 to 100.

    摘要翻译: 对应于以下公式的聚酯和聚酯碳酸酯:其中R1至R4,o至r,n,a和b以及X1和Y1如说明书中所定义,可以通过界面 来自对应于下式的双酚的缩合。 对应于下式的“IMAGE”和光气的芳族二羧酸氯化物。 新的聚酯和聚酯碳酸酯具有出色的耐热性和光稳定性。 它们既可以作为热塑性材料,也可以用作聚合物共混物的成分,甚至可以用作UV(光)稳定剂或UV(光)稳定涂料。 因此,它们的缩聚度n在2〜100的范围内。