Process for preparing improved high solids acrylic-based coatings
    6.
    发明授权
    Process for preparing improved high solids acrylic-based coatings 失效
    制备改进的高固体丙烯酸类涂料的方法

    公开(公告)号:US4758642A

    公开(公告)日:1988-07-19

    申请号:US807585

    申请日:1985-12-11

    CPC分类号: C09D133/066 C08L61/20

    摘要: According to one aspect of the present invention, an improved method for preparing acrylic copolymer resins is provided in which the polymerization solvent includes an internal olefin. The monomers comprise hydroxy-substituted alkyl (meth)acrylates, and non-hydroxy substituted alkyl (meth)acrylates, and the process provides an improved method for forming low molecular weight acrylic resins useful as components in high solids acrylic coatings suitable for electrostatic spraying. The polymerization solvent can remain in the resin to become the solvent employed in the higher solids coating containing the thus-formed acrylic resins and provides surprisingly improved electrical resistivity and color decreased over previously used polymerization solvents, and has good compatibility with the acrylic monomer/resin system.

    摘要翻译: 根据本发明的一个方面,提供一种制备丙烯酸共聚物树脂的改进方法,其中聚合溶剂包括内烯烃。 单体包括羟基取代的(甲基)丙烯酸烷基酯和非羟基取代的(甲基)丙烯酸烷基酯,并且该方法提供了用于形成低分子量丙烯酸树脂的改进方法,其用作适用于静电喷涂的高固体丙烯酸涂料中的组分。 聚合溶剂可以保留在树脂中,成为含有如此形成的丙烯酸树脂的较高固体涂料中使用的溶剂,并且与先前使用的聚合溶剂相比提供惊人的改善的电阻率和颜色,并且与丙烯酸单体/树脂具有良好的相容性 系统。

    Phenol terminated diester compositions derived from discarboxylic acids,
polyester polymers or alkyd polymers, and curable compositions
containing same
    8.
    发明授权
    Phenol terminated diester compositions derived from discarboxylic acids, polyester polymers or alkyd polymers, and curable compositions containing same 失效
    由酚羧酸,聚酯聚合物或醇酸聚合物衍生的苯酚封端的二酯组合物和含有它们的可固化组合物

    公开(公告)号:US5326831A

    公开(公告)日:1994-07-05

    申请号:US6229

    申请日:1993-01-19

    摘要: The present invention is directed towards a process for preparing non-liquid crystalline phenol-terminated diester compositions characterized by the structure of formula 1: ##STR1## wherein R is an aliphatic divalent hydrocarbon radical containing 2 to 40 carbon atoms or a mixture of such radicals, provided however that R contains at least about 8 carbon atoms when n is 0 and p is 0, R.sub.1 is an aliphatic or cycloaliphatic hydrocarbon radical containing 2 to 40 carbon atoms or a mixture of such radicals, R.sub.2 is an aliphatic, aromatic or a mixture of aliphatic and aromatic hydrocarbon radicals having from 2 to 40 carbon atoms, A is divalent aromatic radical selected from the group consisting of phenylene, naphthylene or his phenylene, p is 0 or 1, n is 0 or an integer ranging from 1 to about 40, provided however, that p is 0 when n is 0 and p is 1 when n is an integer.The invention is also directed to a single stage direct esterification or multi stage esterification processes for producing the aforementioned diesters of formula 1 either with or without the use of esterification catalysts, and is particularly directed to such processes for preparing diesters of reduced color using a low temperature process in combination with catalyst systems containing a phosphorous acid or derivative thereof.

    摘要翻译: 本发明涉及一种制备非液晶苯酚封端的二酯组合物的方法,其特征在于式1的结构:其中R是含有2至40个碳原子的脂族二价烃基或 但是,当n为0且p为0时,R包含至少约8个碳原子,R 1为含有2至40个碳原子的脂族或脂环族烃基或这些基团的混合物,R 2为 脂族,芳族或具有2至40个碳原子的脂族和芳族烃基的混合物,A是选自亚苯基,亚萘基或其亚苯基的二价芳族基团,p为0或1,n为0或整数 但是,如果n是0,p是0,当n是整数时,p是1。 本发明还涉及使用或不使用酯化催化剂制备上述式1的二酯的单阶段直接酯化或多阶段酯化方法,特别涉及这样的使用低 与含有亚磷酸或其衍生物的催化剂体系结合使用。

    High solids acrylic-based coatings
    10.
    发明授权
    High solids acrylic-based coatings 失效
    高固体丙烯酸类涂料

    公开(公告)号:US4985517A

    公开(公告)日:1991-01-15

    申请号:US360597

    申请日:1989-06-02

    摘要: According to one aspect of the present invention, improved acrylic copolymer resins are provided which are formed by co-polymerization of a monomer mixture comprising hydroxy-substituted alkyl (meth)acrylates, alkyl methacrylates or vinyl aromatics, and higher alpha-olefins. The invention provides improved low molecular weight acrylic resins useful as components in high solids acrylic coatings suitable for electrostatic spraying.

    摘要翻译: 根据本发明的一个方面,提供了通过包含羟基取代的(甲基)丙烯酸烷基酯,甲基丙烯酸烷基酯或乙烯基芳族化合物和更高级α-烯烃的单体混合物的共聚形成的改进的丙烯酸共聚物树脂。 本发明提供改进的低分子量丙烯酸树脂,其可用作适用于静电喷涂的高固体丙烯酸涂料中的组分。