摘要:
The present invention relates to crude oils and products derived therefrom comprising, as asphaltene dispersant, ethercarboxylic acids of the formulaRO(CH.sub.2 CHR.sub.1 O).sub.x (CH.sub.2 CHR.sub.2 O).sub.y CH.sub.2 --CO.sub.2 Hwhere the substituents have the meaning defined in the description.
摘要:
The present invention relates to a process for improving the waterproofing of hides, skins, leathers, and furs, as well as other fibrous materials, by treatment with special surfactants in the beamhouse and/or in the treatment of the wet blues, prior to waterproofing. Particularly suitable as surfactants are anionic surfactants based on salts of N-acyl-amino acids and nonionic surfactants, such as alkyl polyglycosides or polyethyleneglycol carboxyalkyl ethers. The surfactants are used in amounts of 0.5 to 5% wt., relative to the pelt or shaved weight.
摘要:
The present invention relates to anhydrous and water-containing agents for waterproofing leathers and furs, which comprise a silicone and as emulsifier an alkyl polyalkylol ether carboxylic acid and/or an alkylaryl polyalkylol ether carboxylic acid and/or one of their alkali, alkaline earth, ammonia, amine, or alkanolamine salts. The present invention further relates to the use of these agents for waterproofing, preferably in retanning or afterwards. Subsequent to the waterproofing, an aftertreatment using metallic salts of bito tetravalent cations may be carried out.
摘要:
This invention relates to liquid concentrated aqueous solutions of salts of alkyl ether carboxylic acid derived from alkanols having at least 10 C atoms, which aqueous solution of the salts of alkyl ether carboxylic acid also contains ethoxylated or ethoxylated and carboxymethylated products or mixtures thereof, derived from polyhydric alcohols, the degree of ethoxylation of those products being at least 0.5. The invention also relates to processes for preparing such liquid aqueous solutions.
摘要:
A process for the transportation of viscous crude oils utilizes an emulsifier-containing oil-in-water emulsion having at least 10-15% water which is subsequently separated again into crude oil and water. The emulsifier is a carboxymethylated ethoxylate of the formulaR--(O--CH.sub.2 --CH.sub.2).sub.n --O--CH.sub.2 --COOMwhereinR is a linear or branched aliphatic residue of 6-20 carbon atoms, or an alkyl- or dialkylaromatic residue of 5-16 carbon atoms per alkyl group,n is 1-40 andM is an alkali or alkaline earth metal ion, or ammonium.
摘要:
Deinking of impact and nonimpact printed paper is accomplished by repulping the printed paper in an alkali aqueous medium containing a deinking composition comprising one or more nonionic surfactants and/or alkanols. The presence of the deinking composition causes ink particles to agglomerate, which are removed from the aqueous medium by size and density separation. The invention provides an agglomeration method with high ink removal from all types of impact and nonimpact printed paper.
摘要:
A homogeneous, essentially nonaqueous adjuvant composition containing at least one spray oil selected from the group consisting of(a) vegetable oils;(b) fatty acids and blends thereof;(c) esterified fatty acids or blends thereof;(d) saponified fatty acids or blends thereof;(e) N,N-dimethylamide of the formulaRCON(CH.sub.3).sub.2(f) polybutenes of the following formula ##STR1## a surfactant in an effective amount to emulsify said composition and a buffering agent in amount sufficient to reduce the pH to below about 7.
摘要:
A surfactant composition containing a fatty acid polyoxyalkylene lower alkyl ether represented by formula (1):R(OR.sup.1).sub.n OR.sup.2 (1)wherein R represents an alkanoyl or alkenoyl group having from 10 to 18 carbon atoms;R.sup.1 represents an alkylene having from 2 to 4 carbon atoms;R.sup.2 represents a lower alkyl group; andn is from 5 to 100 on the average; and a fatty acid monoglyceride represented by formula (2):R.sup.3 OCH.sub.2 CH(OH)CH.sub.2 OH (2)wherein R.sup.3 represents an alkanoyl group having from 8 to 16 carbon atoms or an alkenoyl group having from 12 to 22 carbon atoms;are disclosed.The foaming properties of a fatty acid polyoxyalkylene lower alkyl ether of formula (1) are improved by adding a fatty acid monoglyceride represented by formula (2) to the fatty acid polyoxyalkylene lower alkyl ether of formula (1).
摘要:
The invention relates to non-ozone depleting cleaning compositions for degreasing elements in manufacturing and engineering processes like oily machine parts and for defluxing printed circuit boards, used in the electric and electrical industry. The composition according to the invention contains at least one C.sub.6-12 alkyllactate ester, preferably 2-ethyl hexyl lactate, in an amount of 70-99% by weight and at least one emulsifier, preferably n-octanol, in an amount of 1-30% by weight. One of the main advantages of the present cleaning composition is based on the fact that in the rinsing step with water for removing the cleaning composition from the treated surface an emulsion is formed, which on the one hand is stable enough for having proper rinsing ability and on the other hand--after the rinsing step--will separate rather quickly into an oil and a water phase. This last mentioned phenomenon provides the benefits of reusing the active cleaning agent, i.e. the C.sub.6-12 alkyllactate ester and reusing and/or partly discarding the waste water being toxicologically and environmentally safe.
摘要:
A wagon top conversion assembly includes a framework for extending over and mounting to the opposite sides of a child's wagon, a plurality of mounting brackets attachable to the opposite sides of the wagon for mounting the framework thereto, a flexible cover being mountable over the framework to extend downwardly therefrom with separable side portions and an end portion for attachment to the sides and end of the wagon and capable of being individually placed in rolled-up conditions to open the sides and end of the wagon, and fastening ties attached on the flexible cover for fastening the cover to the sides and end of the wagon and for retaining selected ones of the side portions and end portion of the cover in the rolled-up condition.