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1.
公开(公告)号:US5635566A
公开(公告)日:1997-06-03
申请号:US348225
申请日:1994-11-28
申请人: Bettina Gerharz , Matthias Kroggel
发明人: Bettina Gerharz , Matthias Kroggel
IPC分类号: B01F17/04 , B01F17/38 , B01F17/42 , B01F17/52 , C08F2/20 , C08F2/22 , C08F2/24 , C08F2/26 , C08F16/00 , C08F16/30 , C08L29/10 , C08L29/14
CPC分类号: C08F2/24
摘要: Process for preparing dispersions stabilized with protective colloid using sulfonato-containing polyvinyl acetals as the protective colloid in the preparation of the dispersions, if desired in combination with additional emulsifiers or additional protective colloids. The dispersions exhibit a pH-dependent viscosity and are suitable, for example, for coating and bonding substrates and as rheology modifiers and binders and for use in solid paints.
摘要翻译: 用保护胶体制备分散体的方法,使用含磺酸基的聚乙烯醇缩醛作为制备分散体时的保护胶体,如果需要,可与其它乳化剂或其他保护胶体结合使用。 分散体表现出pH依赖性粘度,并且适用于例如涂布和粘合基材以及作为流变改性剂和粘合剂并用于固体涂料。
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公开(公告)号:US5665816A
公开(公告)日:1997-09-09
申请号:US521416
申请日:1995-08-30
申请人: Bettina Gerharz , Helmut Hintz
发明人: Bettina Gerharz , Helmut Hintz
IPC分类号: C08L1/26 , C08F2/44 , C08F251/00 , C08F251/02 , C08L1/00 , C08L33/04 , C08L33/06 , C09J101/26 , C09J105/00 , C09J133/04 , C09J133/06 , C09J151/08 , C08L51/02 , C08L51/04 , C08L51/06
CPC分类号: C08F251/02 , C09J151/08
摘要: Aqueous dispersions prepared by polymerization of vinyl acetate, ethylene, and comonomers selected from the group consisting of vinyl esters of aliphatic (C.sub.3 -C.sub.18)-carboxylic acids, acrylic acid esters, methacrylic acid esters, and maleic acid diesters of aliphatic (C.sub.1 -C.sub.18)-alcohols in the presence of 0.05 to 0.95% by weight of .alpha.,.beta.-unsaturated carboxylic acids, 0 to 0.95% by weight of methacrylic acid esters or acrylic acid esters which carry epoxide or hydroxyl groups, and 1.5 to 20% by weight of cellulose ether, to form a copolymer having a glass transition temperature of -40.degree. to 0.degree. C. and comprising a cellulose ether in at least partly grafted form, are suitable as adhesives, for example, for gluing polyolefins.
摘要翻译: 通过聚合乙酸乙烯酯,乙烯和共聚单体制备的水分散体,其选自脂族(C 3 -C 18) - 羧酸的乙烯基酯,丙烯酸酯,甲基丙烯酸酯和马来酸二酯的脂族(C 1 -C 18 )醇,在0.05至0.95重量%的α,β-不饱和羧酸,0至0.95重量%的含有环氧化物或羟基的甲基丙烯酸酯或丙烯酸酯的存在下,和1.5至20重量% 的纤维素醚,以形成玻璃化转变温度为-40℃至0℃并且包含至少部分接枝形式的纤维素醚的共聚物,适合用作例如粘合聚烯烃的粘合剂。
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公开(公告)号:US5747578A
公开(公告)日:1998-05-05
申请号:US681968
申请日:1996-07-30
申请人: Ludwig Schmitz , Stefan Hess , Bettina Gerharz
发明人: Ludwig Schmitz , Stefan Hess , Bettina Gerharz
IPC分类号: C04B24/26 , C04B26/04 , C08F2/20 , C08F2/22 , C08F10/00 , C08F210/02 , C08F218/02 , C08F218/08 , C09J123/08 , C09J131/04 , C09K3/10 , C08L31/04
CPC分类号: C04B40/0042 , C04B26/04 , C08F210/02 , C08F218/08 , C09K3/10 , C04B2103/0057 , C04B2103/0065 , C09K2200/062 , C09K2200/0622
摘要: A copolymer in dispersion or redispersible powder form which is stabilized by a protective colloid and has a glass transition temperature of -40.degree. to 10.degree. C. and an ethylene content of at least 30% by weight, based on the total amount of monomers, with a heterogeneous build-up of the copolymer particles, including a first polymer phase, which includes vinyl acetate and >40% by weight of ethylene, based on the total amount of monomers in this phase, and a last copolymer phase, which includes vinyl acetate and 5 to 40% by weight of ethylene, based on the total amount of monomers in this phase, is suitable, for example, as a binder in building materials.
摘要翻译: 一种分散或可再分散的粉末形式的共聚物,其通过保护胶体稳定,玻璃化转变温度为-40至10℃,乙烯含量为至少30重量%,基于单体总量, 包括基于该相中的单体总量的包括乙酸乙烯酯和> 40重量%乙烯的第一聚合物相的共聚物颗粒的不均匀堆积,以及最后的共聚物相,其包括乙烯基 乙酸酯和5至40重量%的乙烯,基于该相中单体的总量,适合于例如建筑材料中的粘合剂。
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