Resin from saponified ethylene-vinyl acetate copolymers, production and
use thereof
    1.
    发明授权
    Resin from saponified ethylene-vinyl acetate copolymers, production and use thereof 失效
    来自皂化乙烯 - 乙酸乙烯酯共聚物的树脂,其生产和使用

    公开(公告)号:US4614781A

    公开(公告)日:1986-09-30

    申请号:US668822

    申请日:1984-11-06

    摘要: Disclosed are a colorless and transparent carboxyl-modified resin of saponified ethylene-vinyl acetate copolymers prepared from an ethylene-vinyl acetate copolymer, the 1.0 mm-thick sheet therefrom having a total transmittance of more than 90%, a haze of less than 3% and a yellowness index of 3 and the preparation of the resin. The uses of the resin are also disclosed for laminated glass wherein the resin is used as an interlayer as well as for a solar cell module wherein the resin is used as a sealing material of a semiconductor element.

    摘要翻译: 公开了一种由乙烯 - 乙酸乙烯酯共聚物制备的皂化乙烯 - 乙酸乙烯酯共聚物的无色透明羧基改性树脂,其厚度为1.0mm的总透光率大于90%,雾度小于3% 黄度指数为3和树脂的制备。 还公开了树脂的用途,其中树脂用作中间层以及用作太阳能电池组件的层压玻璃,其中树脂用作半导体元件的密封材料。

    Laminated article and process for production thereof
    3.
    发明授权
    Laminated article and process for production thereof 失效
    复合制品及其生产方法

    公开(公告)号:US4719153A

    公开(公告)日:1988-01-12

    申请号:US796778

    申请日:1985-11-12

    摘要: A laminated article which comprisesa layer (A) of a saponified ethylene--vinyl acetate copolymer resin having an ethylene content of 20-55% by mole and a degree of saponification of not less than 90% by mole; laminated witha layer (B) of a hydrophobic thermoplastic resin; through the medium ofa layer (C) of an adhesive resin; said adhesive resin containsa polymer (X) comprising ethylene component--vinyl acetate component--ethylenically unsaturated carboxylic acid component or anhydride thereof--styrene type vinyl compound component, anda copolymer (Y) comprising ethylene component--vinyl acetate component,in an amount satisfying specific formulae,and the process for production thereof,which has a remarkably excellent adhesion between layers, as well as excellent mechanical characteristics and gas barrier properties, and is adapted to a container for foods and packaging material.

    摘要翻译: 一种层压制品,其包含乙烯含量为20-55%摩尔且皂化度不低于90%摩尔的皂化乙烯 - 乙酸乙烯酯共聚物树脂的层(A); 与疏水性热塑性树脂层(B)层压; 通过粘合剂树脂层(C)的介质; 所述粘合剂树脂含有包含乙烯组分 - 乙酸乙烯酯组分 - 烯属不饱和羧酸组分或其酸酐 - 苯乙烯型乙烯基化合物组分的聚合物(X)和包含乙烯组分 - 乙酸乙烯酯组分的共聚物(Y),其量满足 具体公式及其制造方法,其具有显着优异的层间粘附性,以及优异的机械特性和阻气性,适用于食品和包装材料的容器。

    Laminated article and production thereof
    4.
    发明授权
    Laminated article and production thereof 失效
    层压制品及其生产

    公开(公告)号:US4576995A

    公开(公告)日:1986-03-18

    申请号:US633426

    申请日:1984-07-19

    CPC分类号: B32B27/08 Y10T428/24967

    摘要: Disclosed is an adhesive for bonding an ethylene/vinyl alcohol copolymer and polystyrene, which comprises a modified ethylene/vinyl acetate copolymer obtained by graft-copolymerizing a styrenic vinyl monomer and an .alpha.,.beta.-unsaturated carboxylic acid to an ethylene/vinyl acetate copolymer. A laminated article having the said adhesive as an interlayer and production thereof are also disclosed. The laminated article shows strong resistance to delamination and excels in processability. Therefore, the laminate is valuable as a deep-draw forming material with enhanced gas barrier properties for a preservation rigid container for foods.

    摘要翻译: 公开了一种用于粘合乙烯/乙烯醇共聚物和聚苯乙烯的粘合剂,其包含通过将苯乙烯类乙烯基单体和α,β-不饱和羧酸接枝共聚到乙烯/乙酸乙烯酯共聚物上获得的改性乙烯/乙酸乙烯酯共聚物。 还公开了具有所述粘合剂作为中间层及其制备的层压制品。 层压制品显示出很强的抗分层性和优异的加工性能。 因此,层压材料作为用于食品保鲜刚性容器的具有增强的阻气性的深拉伸成形材料是有价值的。

    Production of sphere-formed powdery copolymers
    5.
    发明授权
    Production of sphere-formed powdery copolymers 失效
    球形粉末共聚物的生产

    公开(公告)号:US4309525A

    公开(公告)日:1982-01-05

    申请号:US149956

    申请日:1980-05-15

    IPC分类号: C08J3/16 C08F6/22

    CPC分类号: C08J3/16 C08J2323/08

    摘要: A spherical powder of a hydrolyzed ethylene-vinyl acetate copolymer or its carboxyl modified product, is prepared by a method which comprises mixing 100 parts by weight of (1) a hydrolyzed product of an ethylene-vinyl acetate copolymer having 5 to 50% by weight of vinyl acetate group content or (2) a carboxyl modified product of the aforementioned hydrolyzed product obtained by reacting said hydrolyzed product with an unsaturated carboxylic acid or cyclic acid anhydride, with 10 to 100 parts by weight of an organic solvent capable of dissolving said hydrolyzed product or its carboxyl modified product, the solvent being not freely miscible with water and having a boiling point of not lower than 80.degree. C., 300 to 1000 parts by weight of water and 0.1 to 10 parts by weight of an alkylphenol ethylene oxide adduct having an HLB value of 10 to 20, emulsifying said mixture while it is maintained at a temperature of not lower than the softening point of said hydrolyzed product or carboxyl modified product, and decreasing the temperature of the system under stirring down to not higher than said softening point. The resultant powder is virtually spherical in its particle form, the particles are of almost equal size, and their particle size distribution is such that not less than 70% fall between 70 and 300.mu.. Such spherical powder, when used in electrostatic coating, can provide beautiful coating films.

    摘要翻译: 通过以下方法制备水解的乙烯 - 乙酸乙烯酯共聚物或其羧基改性产物的球形粉末:将100重量份的(1)含有5至50重量%的乙烯 - 乙酸乙烯酯共聚物的水解产物 的乙酸乙烯酯基含量或(2)通过使所述水解产物与不饱和羧酸或环状酸酐反应而获得的上述水解产物的羧基改性产物与10至100重量份能够溶解所述水解产物的有机溶剂 产物或其羧基改性产物,溶剂不与水自由混溶,沸点不低于80℃,300至1000重量份水和0.1至10重量份烷基苯酚环氧乙烷加合物 HLB值为10〜20,在保持在不低于所述水解产物或羧基的软化点的温度下乳化所述混合物 并将系统的温度在搅拌下降至不高于所述软化点。 所得粉末的颗粒形状实际上是球形的,颗粒的尺寸几乎相等,并且它们的粒径分布使得不少于70%在70和300μm之间。 这种球形粉末,当用于静电涂层时,可以提供美丽的涂膜。

    Thermosetting adhesive compositions and use
    8.
    发明授权
    Thermosetting adhesive compositions and use 失效
    热固性粘合剂组合物和用途

    公开(公告)号:US4418177A

    公开(公告)日:1983-11-29

    申请号:US341700

    申请日:1982-01-22

    CPC分类号: C09J163/00 C09J123/08

    摘要: A thermosetting adhesive composition is disclosed which contains (a) a half-ester product of a saponified ethylene/vinyl ester copolymer with a dicarboxylic acid and (b) a solid or liquid epoxy resin, and this composition may further optionally contain a compound bearing two or more carboxyl groups, which is useful as a structural adhesive. The composition has a good storage stability and a good solubility to solvents, and can be cured at relatively low temperature in a shortened time. After curing, the composition shows good heat-resistance and has good adhesive properties.

    摘要翻译: 公开了一种热固性粘合剂组合物,其包含(a)皂化的乙烯/乙烯基酯共聚物与二羧酸的半酯产物和(b)固体或液体环氧树脂,并且该组合物还可任选地含有带有两个 或更多的羧基,其可用作结构粘合剂。 该组合物具有良好的储存稳定性和对溶剂的良好溶解性,并且可以在较短的时间内在较低的温度下固化。 固化后,该组合物显示出良好的耐热性,并具有良好的粘合性。

    Hot-melt adhesive composition
    9.
    发明授权
    Hot-melt adhesive composition 失效
    热熔胶组成

    公开(公告)号:US4352749A

    公开(公告)日:1982-10-05

    申请号:US235028

    申请日:1981-02-17

    CPC分类号: C09J129/04 C09J151/00

    摘要: A hot-melt adhesive composition containing (i) a first component consisting of (a) 20 to 100 weight percent of a hydrolyzed ethylene-vinyl acetate copolymer whose vinyl acetate unit content is in the range of 5 to 50 weight percent and its hydrolysis degree is at least 50 percent and/or a carboxyl-containing product obtained by grafting said copolymer with a carboxyl-containing unsaturated compound or anhydride thereof and (b) 0 to 80 weight percent of a resin compatible with said copolymer and/or said carboxyl-containing product and (ii) a second component which is a tackifying resin, the proportion of said first component being not less than 20 weight percent and that of said second component being not less than 20 weight percent, both based on said two components, and said composition optionally may further contain (iii) a wax as a third component is highly improved in adhesivity as compared with the hitherto known hot-melt adhesive compositions.

    摘要翻译: 一种热熔粘合剂组合物,其包含(i)由(a)20至100重量%的乙酸乙烯酯单元含量为5至50重量%的水解乙烯 - 乙酸乙烯酯共聚物组成的第一组分和其水解度 至少为50%,和/或通过用含羧基的不饱和化合物或其酸酐接枝所述共聚物得到的含羧基的产物和(b)0-80%(重量)与所述共聚物和/ (ii)作为增粘树脂的第二成分,所述第一成分的比例不小于20重量%,所述第二成分的比例不小于20重量%,基于所述两种成分,以及 所述组合物任选地可以进一步含有(iii)作为第三组分的蜡与迄今已知的热熔粘合剂组合物相比,粘合性高度改善。