MODIFIED EPOXIDE PRIMERS
    1.
    发明申请
    MODIFIED EPOXIDE PRIMERS 审中-公开
    改性环氧化物原料

    公开(公告)号:US20120083551A1

    公开(公告)日:2012-04-05

    申请号:US13020642

    申请日:2011-02-03

    摘要: Telechelic resins with reactive end groups (e.g., epoxy phosphate and epoxy ester) were synthesized using bisphenol-A (BPA) epoxide. The bisphenol-A based epoxide and the telechelic resins were all modified with tetraethylorthosilicate (TEOS) oligomers to produce epoxide/polysilicate (organic/inorganic) hybrid systems. The modified epoxides were thermally cured with a melamine-formaldehyde resin, cast on steel substrates and salt spray analysis revealed that the inorganically modified epoxides provided improvement over unmodified epoxide resins with respect to both corrosion resistance and adhesion to steel substrates.

    摘要翻译: 使用双酚A(BPA)环氧化物合成具有反应性端基(例如环氧磷酸酯和环氧酯)的亲风树脂。 双酚A基环氧化物和遥爪树脂都用原硅酸四乙酯(TEOS)低聚物进行了改性,以生产环氧/聚硅酸盐(有机/无机)混合体系。 改性的环氧化物用三聚氰胺 - 甲醛树脂热固化,铸造在钢基材上,盐雾分析表明,无机改性的环氧化物相对于耐腐蚀性和对钢基材的粘附性都提供了未改性环氧树脂的改进。

    ACRYLATE-BASED FLUORINATED COPOLYMERS FOR HIGH-SOLIDS COATINGS
    2.
    发明申请
    ACRYLATE-BASED FLUORINATED COPOLYMERS FOR HIGH-SOLIDS COATINGS 审中-公开
    用于高固体涂料的基于丙烯酸酯的氟化共聚物

    公开(公告)号:US20120083568A1

    公开(公告)日:2012-04-05

    申请号:US13020600

    申请日:2011-02-03

    IPC分类号: C09D167/06

    摘要: A series of low, medium, and high molecular weight copolymers containing methyl methacrylate, n-butyl acrylate. 2-hydroxyethyl methacrylate, and 2,2,2-trifluoroethyl methacrylate were synthesized by solution polymerization under monomer-starved conditions. The copolymers were crosslinked with a methylated melamine formaldehyde resin in order to obtain thermosetting acrylics. Lower wettability, higher oxygen permeability, and lower refractive index were observed for higher concentrations of fluorinated monomer in the copolymer composition and high number-average hydroxyl functionality of the high molecular weight copolymers increased the crosslink density of the acrylic films, thereby resulting in improved tensile strength and tensile modulus.

    摘要翻译: 一系列含有甲基丙烯酸甲酯,丙烯酸正丁酯的低,中,高分子量共聚物。 甲基丙烯酸2-羟乙酯和甲基丙烯酸2,2,2-三氟乙酯在单体饥饿条件下通过溶液聚合合成。 共聚物与甲基化三聚氰胺甲醛树脂交联以获得热固性丙烯酸树脂。 对于较高浓度的氟化单体在共聚物组合物中观察到较低的润湿性,较高的透氧性和较低的折射率,并且高分子量共聚物的高数均羟基官能团增加了丙烯酸薄膜的交联密度,由此导致改进的拉伸强度 强度和拉伸模量。