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公开(公告)号:US4213760A
公开(公告)日:1980-07-22
申请号:US38252
申请日:1979-05-11
CPC分类号: C14C1/08
摘要: A process for deliming hides, in which, instead of using conventional acids or acid salts, esters which hydrolyze under the conventional deliming conditions are employed. This avoids the disadvantages associated with an overdose of conventional deliming agents.
摘要翻译: 用于分离皮革的方法,其中代替使用常规酸或酸式盐,在常规分离条件下水解的酯被使用。 这避免了与常规分层剂过量相关的缺点。
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公开(公告)号:US4424298A
公开(公告)日:1984-01-03
申请号:US372799
申请日:1982-04-28
IPC分类号: C08F2/00 , C08F2/24 , C08F2/26 , C08F2/28 , C08F220/00 , C08F220/10 , C08F220/12 , C08K5/01
CPC分类号: C08F220/12
摘要: Emulsion copolymerization of acrylic or methacrylic acid esters with from 0.3 to 10% by weight of .alpha.,.beta.-monoolefinically unsaturated monocarboxylic acids and/or dicarboxylic acids and/or their amides, with or without up to 25% by weight of styrene, acrylonitrile, vinyl acetate and/or vinyl chloride, using the emulsion feed process, gives particularly concentrated copolymer dispersions if an emulsifier system of 0.01-5.0% by weight of a sulfuric acid half-ester of an oxyalkylated alkylphenol and 0.01-1% by weight of a dialkyl sulfosuccinate, where alkyl is of 6 to 18 carbon atoms, is employed and the polymerization is carried out at pH 2-6.
摘要翻译: 丙烯酸或甲基丙烯酸酯与0.3至10重量%的α,β-单烯属不饱和一元羧酸和/或二羧酸和/或其酰胺的乳液共聚合,具有或不含有至多25重量%的苯乙烯,丙烯腈, 使用乳液进料方法的乙酸乙烯酯和/或氯乙烯,如果使用0.01-5.0重量%的烷氧基化烷基酚的硫酸半酯的乳化剂体系和0.01-1重量% 二烷基磺基琥珀酸盐,其中烷基为6至18个碳原子,聚合反应在pH2-6下进行。
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3.
公开(公告)号:US4374872A
公开(公告)日:1983-02-22
申请号:US281489
申请日:1981-07-08
CPC分类号: C14C11/003
摘要: A process is disclosed for insolubilizing casein coatings for leather utilizing alkoxy alkyl ureas. The coatings are cured in the presence of an acid catalyst. The casein coatings of the invention avoid the disadvantageous use of aldehydes such as formaldehyde and glutaraldehyde to cure the casein and reduce its water sensitivity and unexpectedly show improved wet abrasion resistance.
摘要翻译: 公开了一种利用烷氧基烷基脲对不溶性酪蛋白涂层进行革剥的方法。 涂层在酸催化剂存在下固化。 本发明的酪蛋白涂层避免了醛如甲醛和戊二醛的不利用途来固化酪蛋白并降低其水敏感性,并且意外地显示出改进的耐湿耐磨性。
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