Method for the production and repair of multicoat special-effect coating
    1.
    发明授权
    Method for the production and repair of multicoat special-effect coating 失效
    多功能特效涂料的生产和修理方法

    公开(公告)号:US5849365A

    公开(公告)日:1998-12-15

    申请号:US92734

    申请日:1998-06-06

    CPC分类号: B32B43/00 B05D5/005 B05D5/068

    摘要: The invention relates to a method for the production and repair of multicoat special-effect coatings, in which the basecoats is produced exclusively by elecrostatic �sic! spraying, a coating material with a specific rheological behavior is employed as the basecoats and the repair is carried out with the aid of a spray application process in which a spray jet is produced which is distinguished in that at most 40% of the coating droplets passing a measurement point which lies at the center of the spray jet and 300 mm away from the nozzle have a diameter which is less than 20 .mu.m and at least 5% of the coating droplets have a diameter which is greater than 60 .mu.m, at least 20% of the coating droplets passing the measurement point have a speed which is less than 6 m/s and at most 30% of the coating droplets have a speed of more than 10 m/s, and the coating droplets have a momentum which is equal to at least 4.times.10.sup.-5 g cm s.sup.-1, the diameter and the speed having been determined with the aid of the Doppler phase anemometry method.

    摘要翻译: 本发明涉及一种生产和修理多功能特殊效果涂料的方法,其中底漆是通过静电喷涂生产的,采用具有特定流变行为的涂料作为底漆,并进行修复 借助于其中产生喷射射流的喷雾施加过程,其特征在于通过位于喷射射流中心并距离喷嘴300mm的测量点的至多40%的涂层液滴具有 小于20μm的直径和至少5%的涂布液滴具有大于60μm的直径,通过测量点的至少20%的涂布液滴具有小于6μm的速度 / s,并且最多30%的涂布液滴具有大于10m / s的速度,并且涂布液滴具有等于至少4×10 -5 g cm s -1的动量,其直径和速度具有 已经确定与援助o f多普勒相电流法。

    Process for the production of sealed packaging containers and the use of
a sealing coating for coating plastics films
    2.
    发明授权
    Process for the production of sealed packaging containers and the use of a sealing coating for coating plastics films 失效
    用于生产密封包装容器的过程和使用用于涂覆塑料膜的密封涂层

    公开(公告)号:US5800873A

    公开(公告)日:1998-09-01

    申请号:US316784

    申请日:1994-10-03

    摘要: The present invention relates to a process for the production of sealed packaging containers of plastics films, using a sealing coating based on an aqueous dispersion or solution of acrylate copolymer, where the aqueous dispersion of acrylate copolymer is prepared by emulsion polymerization offrom 1 to 15% by weight of .alpha.,.beta.-ethylenically unsaturated carboxylic acids, from 40 to 69% by weight of alkyl esters of acrylic acid having 1-12 carbon atoms in the alkyl radical, from 0 to 55% by weight of alkyl esters of methacrylic acid having 1-12 carbon atoms in the alkyl radical and/or vinylaromatics, and from 0 to 25% by weight of further monomers, the sum of the monomers in each case being 100% by weight. The glass transition temperature being not more than 50.degree. C. and the number-average molecular weight of the acrylate copolymer being 8000-12,000; in the first stage from 5 to 20% by weight of the monomer mixture are polymerized and preferably after renewed addition of emulsifier in the second stage the residual monomer mixture is polymerized in the presence of the polymer obtained in the first stage, the resulting reaction mixture is at least partially neutralized, conventional auxiliaries and additives are added if desired, and the resulting sealing coating is applied to the plastics film and dried.

    摘要翻译: 本发明涉及使用基于丙烯酸酯共聚物的水性分散体或丙烯酸酯共聚物溶液的密封涂料来生产塑料薄膜的密封包装容器的方法,其中丙烯酸酯共聚物的水分散体通过1至15的乳液聚合制备 重量%的α,β-烯属不饱和羧酸,40至69重量%的烷基中具有1-12个碳原子的丙烯酸烷基酯,0至55重量%的甲基丙烯酸烷基酯 在烷基和/或乙烯基芳族化合物中具有1-12个碳原子,和0至25重量%的其它单体,每种情况下单体的总量为100重量%。 玻璃化转变温度不超过50℃,丙烯酸酯共聚物的数均分子量为8000-12,000; 在第一阶段中,将5至20重量%的单体混合物进行聚合,优选在第二阶段更新加入乳化剂之后,在第一阶段获得的聚合物存在下使残余单体混合物聚合,得到的反应混合物 至少部分中和,如果需要,加入常规的助剂和添加剂,并将所得密封涂料施加到塑料膜上并干燥。

    Process for the production of textured coatings on plastics surfaces
    3.
    发明授权
    Process for the production of textured coatings on plastics surfaces 失效
    在塑料表面生产纹理涂层的工艺

    公开(公告)号:US5759630A

    公开(公告)日:1998-06-02

    申请号:US553405

    申请日:1996-01-11

    摘要: The present invention relates to a process for the production of textured coatings on plastics surfaces using coating compositions based on hydroxyl group-containing binders and polyisocyanates, and using pulverulent texturing agents. The process is characterized in that, initially, a solution of the hydroxyl group-containing binder (I) is mixed with an elastic matting paste (A) comprising a1) from 12 to 25% by weight of a saturated hydroxyl group-containing polyester having a hydroxyl number of from 100 to 160 mg of KOH/g and a number-average molecular weight of from 800 to 2500, a2) from 1 to 4% by weight of a hydroxyl group-containing Cardura-modified acrylate copolymer having a hydroxyl number of from 30 to 250 mg of KOH/g and an acid number of from 0 to 50 mg of KOH/g, a3) from 0 to 3% by weight of cellulose ester, a4) from 35 to 60% by weight of organic solvent, a5) from 12 to 25% by weight of matting agents and if desired catalysts, wetting agents and, if desired, other auxiliaries and additives, the total weight of the elastic matting paste (A) being in each case 100% by weight, the elastic matting paste (A) being sieved if desired before or after being mixed with the solution of the hydroxyl group-containing binder (I), the mixture is subsequently mixed together with polyisocyanates (II) as crosslinking agents, other organic solvents if desired and with the pulverulent texturing agent, the resulting coating composition is applied to the plastics substrate, and the coating is dried.

    摘要翻译: PCT No.PCT / EP94 / 01590 Sec。 371日期1996年1月11日 102(e)日期1996年1月11日PCT提交1994年5月17日PCT公布。 公开号WO94 / 28045 日期1994年12月8日本发明涉及使用基于含羟基的粘合剂和多异氰酸酯的涂料组合物和使用粉状变形剂来在塑料表面上生产织构化涂层的方法。 该方法的特征在于,首先将含羟基的粘合剂(I)的溶液与弹性消光膏(A)混合,所述弹性消光膏包含a1)12至25重量%的含饱和羟基的聚酯,其具有 羟基数为100至160mg KOH / g,数均分子量为800至2500,a2)1至4重量%的羟基数含羟基的Cardura改性丙烯酸酯共聚物 30至250mg KOH / g,酸值为0至50mg KOH / g,a3)0至3重量%的纤维素酯,a4)35至60重量%的有机溶剂 ,a5)12至25重量%的消光剂和如果需要的催化剂,润湿剂和(如果需要的话)其它助剂和添加剂,弹性消光膏(A)的总重量在每种情况下为100重量% 如果需要,在与含羟基的溶液混合之前或之后将弹性消光膏(A)进行筛分 g粘合剂(I),随后将混合物与作为交联剂的多异氰酸酯(II),如果需要与其它有机溶剂一起混合,并与粉末变形剂混合,将所得涂料组合物施加到塑料基材上,并将涂层干燥。

    Powder coating and its use for internal coating of packaging containers
    6.
    发明授权
    Powder coating and its use for internal coating of packaging containers 失效
    粉末涂料及其用于包装容器的内部涂层

    公开(公告)号:US5605985A

    公开(公告)日:1997-02-25

    申请号:US256891

    申请日:1994-08-10

    摘要: The present invention relates to a powder coating, in particular for internal coating of packaging containers, which is characterized in that it1.) comprises at least one epoxy resin having an epoxide equivalent weight of from 300 to 5500 and at least one hardener having more than one phenolic hydroxyl group per molecule and a hydroxyl equivalent weight, based on the phenolic OH groups, of from 100 to 500, and2.) has a particle size distribution such that at least 90 percent by weight of the powder coating particles have a particle size of between 1 and 60 .mu.m, the maximum particle size of the powder coating particles is .ltoreq.100 .mu.m, the mean particle size of the powder coating particles is between 5 and 20 .mu.m and the gradient of the particle distribution curve at the point of inflexion is .gtoreq.100.

    摘要翻译: PCT No.PCT / EP93 / 00243 Sec。 371日期:1994年8月10日 102(e)日期1994年8月10日PCT提交1993年2月3日PCT公布。 第WO93 / 16141号公报 日期:1993年8月19日本发明涉及一种粉末涂料,特别是用于包装容器的内部涂层,其特征在于:1)包含至少一种环氧树脂,其环氧当量为300至5500, 至少一种每分子具有多于一个酚羟基的固化剂和基于酚OH基团的羟基当量为100至500和2.)具有使得至少90重量% 粉末涂料颗粒的粒度为1〜60μm,粉末涂料颗粒的最大粒径为100μm,粉末涂料颗粒的平均粒径为5〜20μm, 拐点处的粒子分布曲线的梯度为> / = 100。

    Acrylate copolymer and process for the production thereof
    8.
    发明授权
    Acrylate copolymer and process for the production thereof 失效
    丙烯酸酯共聚物及其制备方法

    公开(公告)号:US5483004A

    公开(公告)日:1996-01-09

    申请号:US211407

    申请日:1994-03-30

    摘要: The present invention relates to an acrylate copolymer containing amino groups, carboxyl groups and, if appropriate, hydroxyl groups which is characterized in that it has been produced by preparing an acrylate copolymer containing amino groups and, if appropriate, carboxyl groups, by means ofA) free-radical solution polymerization, using azo initiators at temperatures from 80.degree. to 150.degree. C., ofa.sub.1) 1 to 20% by weight of vinylimidazole and/or dimethylaminopropylmethacrylamide,a.sub.2) 0 to 50% by weight of one or more monomers containing hydroxyl groups,a.sub.3) 0 to 50% by weight of one or more monomers containing carboxyl groups, anda.sub.4) 30 to 85% by weight of at least one further ethylenically unsaturated copolymerizable monomer,the total of the proportions by weight of the components a.sub.1 to a.sub.4 always being 100% by weight, and the proportions by weight of the components a.sub.2 and a.sub.3 not both simultaneously being zero, andB) if appropriate, reacting the acrylate copolymer obtained in stage (A) with carboxylic acid anhydrides, the quantity of carboxylic acid anhydrides employed having been selected such that the resulting copolymer has the desired acid number.

    摘要翻译: PCT No.PCT / EP92 / 02259 Sec。 371日期1994年3月30日 102(e)1994年3月30日PCT提交1992年9月30日PCT公布。 出版物WO93 / 07190 日本公开日1993年4月15日。本发明涉及含有氨基,羧基和适当的羟基的丙烯酸酯共聚物,其特征在于其通过制备含有氨基的丙烯酸酯共聚物,如果合适的话, 羧基,通过A)自由基溶液聚合,在80至150℃的温度下使用偶氮引发剂,a1)1至20重量%的乙烯基咪唑和/或二甲基氨基丙基甲基丙烯酰胺,a2)0至50重量% 的一种或多种含有羟基的单体,a3)0-50%(重量)一种或多种含有羧基的单体,和a)30-85%(重量)的至少一种其它烯属不饱和可共聚单体, 组分a1至a4的重量比例总是为100重量%,组分a2和a3的重量比不能同时为零,B)如果合适,使丙烯酸酯共聚物 在步骤(A)中用羧酸酐获得的羧酸酐的用量已经被选择,使得所得共聚物具有所需的酸值。

    Process for coating electrically conductive substrates, a water-based
coating and a crosslinking agent containing masked NCO groups
    10.
    发明授权
    Process for coating electrically conductive substrates, a water-based coating and a crosslinking agent containing masked NCO groups 失效
    用于涂覆导电基材,水性涂料和含有掩蔽的NCO基团的交联剂的方法

    公开(公告)号:US5451305A

    公开(公告)日:1995-09-19

    申请号:US955703

    申请日:1994-02-09

    IPC分类号: C08G18/80 C09D5/44 C25D13/10

    摘要: The invention relates to a cathodic electro-dipping process wherein the electro-dipping primer employed contains a crosslinking agent which can be obtained by reactinga) a diol and/or a triol or a mixture of diols and/or a mixture of triols,b) diphenylmethane 4,4'-diisocyanate the melting point of which has been depressed, by partial reaction with a monool and/or polyol or a mixture of monools and/or a mixture of polyols, so far that it is liquid at room temperature andc) a masking agent or a mixture of masking agentsto give a crosslinking agent which is free from isocyanate groups.

    摘要翻译: PCT No.PCT / EP91 / 01012 Sec。 371日期1994年2月9日 102(e)1994年2月9日PCT PCT 1991年5月31日PCT公布。 出版物WO92 / 00358 日本1992年1月9日。本发明涉及一种阴极电浸法,其中所用的电浸渍底物含有交联剂,其可通过使a)二醇和/或三醇或二醇和/ 或三醇的混合物,b)二苯基甲烷4,4'-二异氰酸酯,其熔点已经被抑制,通过与一元醇和/或多元醇或单醇和/或多元醇的混合物的混合物的部分反应,至目前为止 在室温下为液体,c)掩蔽剂或掩蔽剂混合物,得到不含异氰酸酯基团的交联剂。