Novel resins and manufacturing the same
    1.
    发明授权
    Novel resins and manufacturing the same 失效
    新型树脂和制造相同

    公开(公告)号:US3898201A

    公开(公告)日:1975-08-05

    申请号:US44509974

    申请日:1974-02-25

    摘要: A process for manufacturing a resin which comprises reacting in the presence of a Friedel-Crafts catalyst, a Diels-Alder addition product with a benzene derivative, said Diels-Alder addition product is a compound having a formula of

    WHEREIN EACH OF R2, R3, R4 and R5 is a hydrogen atom or methyl group, each of R6, R7, R8 and R9 is a hydrogen atom or alkyl group having one to four carbon atoms, each of X and Y is -COOH, -COORa or -CN or X and Y represent an acid anhydride ring formed by being bonded together, Ra being an alkyl group having one to four carbon atoms, A is -CH2- or -CH2CH2-, and m is zero or an integer of 1 or 2; said resin being useful as substitutes for rosin and its derivatives.

    摘要翻译: 一种制备树脂的方法,包括在Friedel-Crafts催化剂,Diels-Alder加成产物与苯衍生物的存在下反应,所述Diels-Alder加成产物是具有下式的化合物:其中R 2,R 3, R 4和R 5是氢原子或甲基,R 6,R 7,R 8和R 9各自为氢原子或具有1-4个碳原子的烷基,X和Y各自为-COOH,-COOR a或-CN或X Y表示通过键合而形成的酸酐环,Ra表示碳原子数1〜4的烷基,A表示-CH 2 - 或-CH 2 CH 2 - ,m表示0或1或2的整数。 所述树脂可用作松香及其衍生物的替代物。

    Polymer prepared from octadienol and unsaturated dicarboxylic acid,
process of preparing the same, and coating composition prepared
therefrom

    公开(公告)号:US4408029A

    公开(公告)日:1983-10-04

    申请号:US435828

    申请日:1982-10-21

    摘要: The present invention provides a relatively low molecular weight polymer comprising units derived from an unsaturated dicarboxylic acid and units derived from octadienol. The polymer exhibits a fluid viscosity of at least about 200 cp when measured in the neat state at room temperature using a Brookfield viscosimeter. The unsaturated dicarboxylic acids from which the polymer units are derived include fumaric acid, maleic acid, and mixtures thereof. The octadienol from which the polymer units are derived commonly comprises a mixture of 2,7-octadien-1-ol and 1,7-octadien-3-ol. Preferably, the polymer exhibits a fluid viscosity of about 700-900 cp. The process for preparing the polymer comprises reacting octadienol with an unsaturated dicarboxylic acid selected from fumaric acid, maleic acid, lower alkyl diesters of said acid, and mixtures thereof in the presence of an esterification catalyst. Preferably, the esterification catalyst comprises dibutyltin oxide and is present in an amount of about 0.01 to 1% by weight. The coating composition provided by the present invention comprises the relatively low molecular weight polymer together with a promoter system comprising organic salts of cobalt and manganese. The promoter system is present in the composition in a concentration such that the weight of metal in the promoter system is about 0.01 to 0.5% of the weight of polymer. The coating composition may further comprise one or more additives selected from pigments, anti-skinning agents, flow control agents, solvents, propellants, additional polymeric resins, and other additives well known in the art.