Preparation of phenol resol ethers bonded via o,o'-methylene ether groups
    21.
    发明授权
    Preparation of phenol resol ethers bonded via o,o'-methylene ether groups 失效
    通过o,o'-亚甲基醚基团键合的酚甲醚的制备

    公开(公告)号:US4675375A

    公开(公告)日:1987-06-23

    申请号:US744201

    申请日:1985-06-13

    CPC分类号: C08G8/36 C08G8/04

    摘要: Essentially phenol-free phenol resol ethers which are bonded via o,o'-methylene ether groups are prepared by a process in whichA. where the process is carried out beginning with the methylolation in an aqueous medium, the methylolation is carried out in the presence of 0.5-10% by weight, based on the phenol employed, of Me.sup.++ ions, the latter are then removed as a sparingly soluble salt, the water present as a solvent in the reaction mixture is removed at 30.degree.-80.degree. C. in the presence or absence of one or more monohydric, dihydric or trihydric alcohols and an entraining agent, and the water of reaction formed during the etherification is separated off at 45.degree.-120.degree. C., andB. where the process is carried out beginning with the methylolation in a non-polar organic solvent, the methylolation is carried out in the presence of 0.1-0.3% by weight, based on the phenol employed, of Me.sup.++ ions, the etherification is effected at 95.degree.-120.degree. C. in the presence of one or more monohydric, dihydric or trihydric alcohols, with or without recycling of the distillate which passes over, and finally residual phenol in the products prepared by A. or B. is removed by evaporation in a thin film evaporator until the phenol content is less than 1% by weight.The phenol resol ethers prepared according to the invention are useful for the preparation of coating systems and for adhesives.

    摘要翻译: 通过o,o-亚甲基醚基团结合的基本上不含苯酚的酚甲醚是通过一种方法制备的,其中在水介质中开始以羟甲基化反应进行该方法,其中甲氧基化在 以所用苯酚为基准,存在0.5〜10重量%的Me ++离子,后者作为微溶盐除去,在反应混合物中作为溶剂存在的水在30〜80℃下除去。 在存在或不存在一种或多种一元,二元或三元醇和夹带剂的情况下,在醚化期间形成的反应水在45°-120℃和B处分离,其中进行该方法 以非极性有机溶剂中的羟甲基化反应开始,在0.1-0.3重量%存在下,基于所用的苯酚Me ++离子进行羟甲基化反应,醚化在95℃-120℃下进行。 在一种或多种单氢的存在下 ic,二元或三元醇,有或没有循环使用过的馏出物,最后通过在薄膜蒸发器中蒸发除去由A.或B.B制备的产物中的残余苯酚,直到苯酚含量小于1% 重量。 根据本发明制备的酚醛树脂醚可用于制备涂料体系和粘合剂。

    Anode for cathodic electrocoating
    22.
    发明授权
    Anode for cathodic electrocoating 失效
    阴极电涂阳极

    公开(公告)号:US4231854A

    公开(公告)日:1980-11-04

    申请号:US951565

    申请日:1978-10-16

    CPC分类号: C25D13/22

    摘要: Novel anodes consist of a mixture of from 30 to 95% by weight of nagnetite, lead dioxide, magnetite/natural graphite mixture or lead dioxide/natural graphite mixture and from 70 to 5% by weight of a plastic. They may be used for the surface-coating of metallic substrates by cathodic electrocoating.

    摘要翻译: 新型阳极由30至95重量%的磁铁矿,二氧化铅,磁铁矿/天然石墨混合物或二氧化铅/天然石墨混合物和70至5重量%的塑料的混合物组成。 它们可以用于通过阴极电泳涂覆金属基底的表面涂覆。

    Preparation of copolymers crosslinkable by a free radical method
    23.
    发明授权
    Preparation of copolymers crosslinkable by a free radical method 失效
    制备通过自由基法交联的共聚物

    公开(公告)号:US5527859A

    公开(公告)日:1996-06-18

    申请号:US510334

    申请日:1995-08-02

    摘要: Copolymers crosslinkable by a free radical method are prepared by polymer-analogous reaction ofA) a copolymer (A) which is composed ofa1) from 20 to 85 mol % of a monomer (a1) having the structural element of methacrylic acid anda2) from 15 to 80 mol % of another monomer (a2) which undergoes free radical polymerization,a3) from 5 to 50 mol % of the total amount of the monomers (a1) and (a2) being monomers (a3) which carry functional groups and whose functional groups are capable of undergoing a condensation or addition reaction,withB) an olefinically unsaturated monomer (B) which carries a functional group which is complementary to that of the monomers (a3),by a process in which the polymer-analogous reaction is carried out at from 90.degree. to 150.degree. C. in an average residence time of from 3 to 20 minutes in highly concentrated solution or in the absence of a solvent. Said copolymers are used as binders for powder coatings.

    摘要翻译: 通过自由基交联的共聚物通过A)共聚物(A)的聚合物 - 类似反应制备,该共聚物(A)由a1- 20-85mol%的具有甲基丙烯酸结构单元的单体(a1)组成,a2) 15〜80摩尔%的另一单体(a2)进行自由基聚合,a3)单体(a1)和(a2)的总量的5〜50摩尔%是带有官能团的单体(a3), 其官能团能够进行缩合或加成反应,B)具有与单体(a3)互补的官能团的烯属不饱和单体(B),其中聚合物 - 类似反应 在高浓度溶液中或在不存在溶剂的情况下,在平均停留时间为3至20分钟的情况下在90℃至150℃下进行。 所述共聚物用作粉末涂料的粘合剂。

    Low-Formaldehyde binders
    24.
    发明授权
    Low-Formaldehyde binders 失效
    低甲醛粘合剂

    公开(公告)号:US4831106A

    公开(公告)日:1989-05-16

    申请号:US158756

    申请日:1988-02-22

    IPC分类号: C08G6/02 C08L61/02

    CPC分类号: C08G6/02 C08L61/02

    摘要: A low-formaldehyde binder consists essentially of(A) from 5 to 80% by weight of a water-soluble condensation product of carbonyl number 0-200 which has been prepared by alkaline condensation from 0.1 to 0.4 mole of an aliphatic or cycloaliphatic condensable ketone and 1 mole of formaldehyde, and(B) from 20 to 95% by weight of 4,5-dihydroxyimidazolidin-2-one and/or an unetherified, partially etherified or completely etherified condensation product thereof with an aliphatic monoaldehyde or dialdehyde.

    摘要翻译: 低甲醛粘合剂基本上由(A)5至80重量%的羰基数0-200的水溶性缩合产物组成,其通过碱性缩合从0.1至0.4摩尔的脂族或脂环族可缩合酮 和1摩尔甲醛,和(B)20至95重量%的4,5-二羟基咪唑烷-2-酮和/或未醚化,部分醚化或完全醚化的缩合产物与脂族单醛或二醛。

    Copolymers crosslinkable by a free radical method
    25.
    发明授权
    Copolymers crosslinkable by a free radical method 失效
    可通过自由基法交联的共聚物

    公开(公告)号:US5484850A

    公开(公告)日:1996-01-16

    申请号:US330678

    申请日:1994-10-28

    摘要: Copolymers crosslinkable by a free radical method and having a number average molecular weight of from 1500 to 6000 and a molecular weight distribution corresponding to a polydispersity of from 1 to 4.0 are obtainable by polymer-analogous reaction ofA) a copolymer (A) which is composed ofa1) from 50 to 85 mol % of a monomer (a1) containing the structural element of methacrylic acid anda2) from 15 to 50 mol % of another monomer (a2) undergoing free radical polymerization,a3) from 5 to 50 mol % of the total amount of the monomers (a1) and (a2) being monomers (a3) which carry functional groups and whose functional groups are capable of undergoing a condensation or addition reaction,and is obtainable by free radical mass or solution polymerization at from 140.degree. to 210.degree. C. and with an average residence time of from 2 to 90 minuteswithB) an olefinically unsaturated monomer (B) which carries a functional group which is complementary to the functional groups of the monomers (a3).Said copolymers are used as binders for powder coatings.

    摘要翻译: 通过自由基交联的数均分子量为1500至6000,分子量分布对应于多分散性为1至4.0的共聚物可通过A)共聚物(A)的聚合物 - 类似反应获得,该共聚物 由a1)50〜85摩尔%的含有甲基丙烯酸的结构单元的单体(a1)和a2)15〜50摩尔%的进行自由基聚合的其他单体(a2),a3)5〜50摩尔 单体(a1)和(a2)的总量的百分比是携带官能团并且官能团能够进行缩合或加成反应的单体(a3),并且可以通过自由基质量或溶液聚合获得 140℃〜210℃,平均停留时间为2〜90分钟,B)具有与单体(a3)的官能团互补的官能团的烯属不饱和单体(B)。 所述共聚物用作粉末涂料的粘合剂。

    Surface-coating binders for cathodic electrocoating
    28.
    发明授权
    Surface-coating binders for cathodic electrocoating 失效
    用于阴极电泳的表面涂层粘合剂

    公开(公告)号:US4134932A

    公开(公告)日:1979-01-16

    申请号:US884909

    申请日:1978-03-09

    摘要: Surface-coating binders for cathodic electrocoating which comprise a protonized heat-curable reaction product (A), substantially free from epoxide groups, of(a) one or more Mannich bases, prepared from(a.sub.1) one or more polyhydric condensed phenols which may or may not contain ether groups.(a.sub.2) one or more secondary amines which contain one or more hydroxyalkyl groups, with or without one or more secondary amines which do not contain such groups, and(a.sub.3) formaldehyde or a formaldehyde donor, with(b) one or more epoxy resins,Which binder also contains from 1 to 40% by weight, based on the total of (A) + (B), of a water-insoluble non-ionic resin (B), free from epoxide groups and containing urethane groups, which resin has been obtained by reacting a partially blocked diisocyanate or higher polyisocyanate with a reaction product of a polyepoxide and one or more low molecular weight compounds containing SH and/or OH groups.These surface-coating binders are especially used for the cathodic electrocoating of metal articles.

    摘要翻译: 包含基本上不含环氧基团的质子化热固化反应产物(A)的(A)一种或多种曼尼希碱的质子化可热固化反应产物(A)的表面涂层粘合剂,其由(A1)一种或多种多元稠合的酚制成,其可以是 可能不包含以下组。

    Surface-coating binders
    29.
    发明授权
    Surface-coating binders 失效
    表面涂层粘合剂

    公开(公告)号:US4260697A

    公开(公告)日:1981-04-07

    申请号:US932466

    申请日:1978-08-10

    摘要: Surface-coating binders based on a reaction product of Mannich bases, obtained from polyhydric phenols, secondary amines and formaldehyde, with epoxy resins. The Mannich bases and/or the epoxy resins carry hydroxyl groups, bonded to aliphatic structures, which have been converted to urethane groups by reaction with partially blocked polyisocyanates. When protonized and diluted with water, the surface-coating binders may be used as cationic electrocoatings.

    摘要翻译: 基于由多元酚,仲胺和甲醛获得的曼尼希碱的反应产物与环氧树脂的表面涂层粘合剂。 曼尼希碱和/或环氧树脂携带羟基,与脂肪族结构键合,其通过与部分封端的多异氰酸酯反应而转化为氨基甲酸酯基团。 当质子化并用水稀释时,表面涂层粘合剂可以用作阳离子电涂层。