摘要:
Glycoside products are successfully prepared directly from aqueous saccharide solutions or syrups, and with acceptably low levels of undesired higher polysaccharide by-products, by dissolving same in the desired alcohol reactant and contacting the resulting homogeneous aqueous saccharide+alcohol solution with an acid catalyst material in a fashion such that substantially no separate or distinct, predominantly aqueous saccharide solution phase is permitted to come into contact with said acid catalyst material under conditions conducive to homopolymerization of said saccharide reactant.
摘要:
Glycoside products are successfully prepared directly from aqueous saccharide solutions or syrups, and with acceptably low levels of undesired homopolymerized saccharide by-products, by dissolving same in the desired alcohol reactant or in an alcohol reactant plus glycoside product mixture and contacting the resulting homogeneous aqueous saccharide solution and alcohol-containing reaction medium with an acid catalyst in a fashion such that no separate or distinct, substantially alcohol reactant-free aqueous saccharide solution-containing phase is permitted to come into contact with said acid catalyst material under conditions conductive to homopolymerization of said saccharide reactant.
摘要:
Medium and long-chain alkyl glycosides are prepared by reacting a saccharide and a monohydric alcohol in the presence of at least 1 mole N-methyl-2-pyrrolidone per mole saccharide unit. The saccharide is selected from the group consisting of unsubstituted saccharides, short-chain alkyl glycosides, and mixtures thereof. The monohydric alcohol is selected from the group consisting of medium-chain alcohols, long-chain alcohols, and mixtures thereof. The reaction is conducted at a temperature of about 80.degree. to 140.degree. C.
摘要:
New alkyl mono and polyglycoside phosphate esters and anionic derivatives thereof are described which compounds have the general formulaRO(G).sub.x Z.sub.ywhereinG is a glycosyl moiety which is selected from the group consisting of fructose, glucose, mannose, galactose, talose, gulose, allose, altrose, idose, arabinose, xylose, lyxose, ribose or mixtures thereof,R is an aliphatic or aromatic hydrocarbon group substituted on the glycosyl moiety which aliphatic or aromatic group is a straight chain or is branched, or is cyclic, saturated or unsaturated and has 6 to 30 carbon atoms;x=1 to 10;y=1 to 3.times.+1;at least one of the hydroxyl groups at the hydroxyl position of at least one of the glycosyl moieties is substituted with Z which is ##STR1## wherein A=R.sub.1, H.sup.+ or (G).sub.x ORB=R.sub.2, M.sup.+ or (G).sub.x OR except that when B--R.sub.2 or (G).sub.x OR, A.noteq.H, when A or B=(G).sub.x OR, Z substitutes one of the hydroxyl groups of the glycosyl moieties of A or B, and R.sub.1 and R.sub.2 =an aliphatic or aromatic hydrocarbon group which is a linear straight chain or is branched, open-chain or cyclic, saturated or unsaturated and has 6 to 30 carbon atoms or CH.sub.3 (CH.sub.2).sub.m (CH.sub.2).sub.n, m and n=1 to 27 with m+n greater than or equal to 5 with the total number of carbon atoms in R.sub.1 +R.sub.2 not exceeding 50;M=an organic or inorganic cation.
摘要翻译:描述了新的烷基单和多糖苷磷酸酯及其阴离子衍生物,其化合物具有通式RO(G)xZy,其中G是糖基部分,其选自果糖,葡萄糖,甘露糖,半乳糖,托洛糖,古洛糖, 阿洛糖,阿糖,阿拉伯糖,木糖,赖索糖,核糖或其混合物,R是在糖基部分上取代的脂族或芳族烃基,脂族或芳族基团是直链或支链的,或是环状,饱和或不饱和的 并具有6〜30个碳原子; x = 1〜10; y = 1〜3x + 1; 至少一个糖基部分的羟基位置的至少一个羟基被Z取代,其中A = R1,H +或(G)xOR B = R2,M +或(G)xOR除外 当B-R2或(G)xOR,A NOTEQUAL H,当A或B =(G)xOR时,Z代替A或B的糖基部分的羟基之一,并且R 1和R 2 =脂族或芳族 烃基,其为直链或支链,开链或环状,饱和或不饱和且具有6至30个碳原子或CH 3(CH 2)m(CH 2)n,m和n = 1至27,m + n 大于或等于5,R1 + R2中碳原子总数不超过50; M =有机或无机阳离子。
摘要:
Liquid hand-soap or bubble bath compositions are provided which comprise a glycoside surfactant, a nonionic foam booster and water and which have a viscosity of at least about 1,000 centipoise. Such compositions have a pleasing texture or consistency, are mild and fast rinsing and do not necessarily require the use of conventional moisturizing agents or additives. Preferred compositions further comprise an anionic or amphoteric surfactant material and especially preferred compositions contain an amphoteric surfactant and are substantially free of anionic surfactant components.
摘要:
Lower alkyl glycosides are added to aqueous liquid detergents to reduce their viscosity and to prevent phase separation. The glycosides are represented by the formula R--O--(G).sub.n where "R" is a lower alkyl group having 2 to 6 carbon atoms, "O" is an oxygen atom, "G" is a saccharide unit, and "n" is a number from 1 to 10. The glycosides comprise about 1 to 10 weight percent of the detergents.