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    System for producing a liquid spray curtain
    102.
    发明授权
    System for producing a liquid spray curtain 失效
    生产液体喷雾帘的系统

    公开(公告)号：US4377985A

    公开(公告)日：1983-03-29

    申请号：US290466

    申请日：1981-08-06

    Applicant: Imants Reba

    Inventor： Imants Reba

    IPC: B05B7/08 ,  D21G7/00 ,  B05D7/08 ,  B05B1/16 ,  B05B7/12

    CPC classification number: B05B7/0884 ,  B05B7/0807 ,  D21G7/00

    Abstract: A method and a system are provided for producing a continuous liquid spray curtain which, when sprayed onto a moving surface, covers essentially the entirety of that surface without substantial streaking thereof. The subject spray curtain is produced by discharging a continuous air curtain at a relatively high velocity of at least 600 feet per second. A plurality of liquid streams are at the same time discharged from a liquid discharge means at a relatively low velocity of not more than about 20 feet per second. The air curtain contacts the liquid streams at a minimum contact angle of between about -10.degree. and about +30.degree., measured from the center line of the liquid discharge means. The contacting air curtain atomizes the liquid streams and forms the subject high velocity, uniform, liquid spray curtain.

    Abstract translation: 提供了一种用于生产连续液体喷雾幕的方法和系统，其在喷射到移动表面上时基本上覆盖该表面的整体而没有显着的条纹。 通过以至少600英尺/秒的相对高的速度排出连续的气帘而产生主体喷雾帘幕。 多个液体流同时以不大于约20英尺/秒的相对低的速度从液体排出装置排出。 空气幕以从液体排出装置的中心线测量的约-10°至+ 30°的最小接触角接触液体流。 接触空气幕使液体流雾化并形成主体高速，均匀的液体喷雾帘。

    Method of protecting substrates with light-stable varnish or lacquer
    103.
    发明授权
    Method of protecting substrates with light-stable varnish or lacquer 失效
    用光稳定的清漆或漆保护基材的方法

    公开(公告)号：US3914463A

    公开(公告)日：1975-10-21

    申请号：US31575272

    申请日：1972-12-15

    Applicant: ROHM & HAAS

    Inventor： MERCURIO ANDREW ,  SPERRY PETER R

    IPC: C09K3/00 ,  B05D7/08 ,  C08L61/00 ,  C08L61/04 ,  C08L61/06 ,  C09D7/00 ,  C09D133/04 ,  C09D161/08 ,  C09D201/00 ,  B05D3/06

    CPC classification number: B05D7/08 ,  C08L61/06 ,  C09D133/04 ,  C09D201/00 ,  C08L2666/14

    Abstract: Disclosed is a process for coating a substrate with a transparent, weather-resistant, light-stable exterior varnish or lacquer comprising blending a transparent coating resin free of drying types of unsaturation, and free of chlorine and bromine, and a minor amount of a compatible transparent, uncured, unoxidized, water-insoluble linear condensation resin of formaldehyde and a phenol having the formula:

    wherein R'' is a radical selected from the group consisting of alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, aryl, and substituted aryl, and R and R'''' are radicals taken from said group or H, the methylene groups in the condensation resin being in the ortho, ortho'' position with respect to the hydroxy group, applying a thin coating of the transparent composition to a substrate, and exposing said coating to conditions, for instance outdoor exposure and/or an oxidation catalyst such as the metallic driers commonly used with unsaturated drying oils, such that oxidation of the phenolaldehyde condensate is achieved to an extent that at least some of the ortho, ortho'' -CH2- groups connected to phenol rings are converted to

    groups, whereby the oxidized phenol-aldehyde condensate protects the coating resin and substrate from oxidation or degradation induced by actinic light or other means, the amount of condensation resin being from 5 percent to 35 percent, preferably 10 to 30 percent, based on the combined weights of the resins. The phenol-aldehyde resin may be oxidized prior to being introduced into a coating resin, or it may be oxidized while mixed with the coating resin when it is in liquid form, as an aqueous dispersion, organic solvent solution, or non-aqueous dispersion of the polymer.

    Abstract translation: 公开了一种用透明，耐候性，光稳定的外部清漆或漆涂覆基材的方法，包括混合不含干燥类型的不饱和的，不含氯和溴的透明涂料树脂和少量相容的 透明，未固化，未氧化的水不溶性线性缩合树脂，其具有下式：OH | | R“'| R'，其中R'是选自烷基，取代的烷基，环烷基，取代的 环烷基，芳基和取代的芳基，R和R“是从所述基团取代的基团或H，缩合树脂中的亚甲基相对于羟基处于邻位，邻位，施加薄的 将透明组合物涂布到基底上，并将所述涂层暴露于例如室外暴露的条件和/或氧化催化剂，例如通常用于不饱和干燥油的金属干燥剂，例如 实现醛醛缩合物的帽氧化达到至少一些连接到苯酚环的邻位，邻'-CH2-基团转化为O平行-C-基团的程度，由此氧化的酚醛缩合物保护涂层树脂 和由光化性光或其它方法引起的氧化或降解的底物，缩合树脂的量基于树脂的总重量为5％至35％，优选为10％至30％。

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