摘要:
Modified polyaspartic acids are obtained by polycondensing (a) 1 to 99.9 mol % aspartic acid with (b) 99 to 0.1 mol % fatty acids, polybasic carboxylic acids, anhydrides of polybasic carboxylic acids, polybasic hydroxycarboxylic acids, monobasic poly-hydroxycarboxylic acids, alcohols, amines, alkoxylated alcohols and amines, amino sugars, carbohydrates, sugar carboxylic acids and/or non-proteinogenic aminocarboxylic acids, or by polymerizing monoethylenically unsaturated monomers in the presence of polyaspartic acids, in the manner of radically initiated graft copolymerization. Also disclosed is a process for preparing these modified polyaspartic acids, as well as the use of these modified polyaspartic acids as additives to washing and cleaning agents, as water conditioning agents and as deposit inhibitors during the condensation of sugar juice.
摘要:
Compositions than contain from about 1% to about 80% by weight of surfactants selected from the group consisting of nonionic, anionic, cationic, amphoteric or zwitteronic surfactants, or mixtures thereof; and from about 0.1% to about 10%, by weight of a mixture of amino acid based polymers, oligomers or copolymers of the general formula (I) wherein the polymer, oligomer, or copolymer contains at least about 5 mole % of one or more amino acids and an organic acid are disclosed. The compositions are useful as fabric treatment agents as they can impart fabric appearance and integrity benefits to fabrics.
摘要:
An amino acid based polymer, oligomer or copolymer containing at least 5 mol % of units of a basic amino acid selected from the group consisting of lysine, argenine, ortnithine, trgptophane and mixtures thereof and at least about 5 mol % of a polymerizable compound selected from the group consisting of aliphatic or cycloaliphatic amines, alicyclic amines, diamines, triamines, tetraamines, aliphatic amino alcohols or mixtures thereof, an a process for the production of the said polymer, oligomer or copolymer by condensing at a temperature of at least 120.degree. C. said basic amino acid with at least one of said polymerizable compounds.
摘要:
Condensation products of basic amino acids with copolymerizable compounds which are obtainable by condensing(a) a basic amino acid selected from the group consisting of lysine, arginine, ornithine, tryptophane and mixtures thereof,(b) a copolymerizable compound selected from the group consisting of saturated monobasic carboxylic acids, unsaturated mono-basic carboxylic acids, polybasic carboxylic acids, carboxylic acid anhydrides, diketenes, monohydroxycarboxylic acids, polyhydroxycarboxylic acids and mixtures thereof, and optionally(c) at least one compound selected from the group consisting of amines, lactams, non-proteinogenic acids, alcohols, alkoxylated alcohols, alkoxylated amines, amino sugars, carbohydrates and sugar carboxylic acidsin a molar ratio of (a):(b) of from 100:1 to 1:1 at a temperature of at least 120.degree. C., and a process for the production of said condensation products by condensing compounds (a) and (b) and optionally (c) at a temperature of from 120.degree. to 300.degree. C.
摘要:
The invention relates to the use of cationically-modified, particle-shaped, hydrophobic polymers as addition agents in rinsing, care, detergent, and cleaning products. The surface of said polymers is cationically modified by means of a coating of cationic polymers and the particle size of said polymers ranges from 10 nm to 100 μm.
摘要:
Alkoxylated, condensed basic amino acid-containing polymers comprising the addition products of alkylene oxides with homocondensates of basic amino acids, condensates of mixtures of two or more basic amino acids and cocondensates of basic amino acids and cocondensable compounds, and a process for the production of alkoxylated, condensed basic amino acid-containing polymers which comprises reacting homocondensates of basic amino acids, condensates of mixtures of two or more basic amino acids and cocondensates of basic amino acids and cocondensable compounds with at least one alkylene oxide selected from the group consisting of C2- and C30-alkylene oxides and styrene oxide.
摘要:
Paper, board and cardboard are produced by a process in which a paper stock is drained in the presence of condensates of basic amino acids with sheet formation. In particular, homo- and cocondensates of lysine and the crosslinked condensates obtainable therefrom by reaction with crosslinking agents are used in amounts of from 0.01 to 5% by weight, based on dry paper stock, as a means of increasing the dry and wet strength and the absorptivity of paper, for fixing anionic dyes and interfering substances in the paper, for increasing the drainage rate and the retention as well as the efficiency of synthetic anionic and cationic retention aids in the production of paper, board and cardboard by draining a paper stock with sheet formation.
摘要:
The process for the positioning of a fiber sliver end is characterized in that in the stopped position of the flat can a drafting point is formed in the fiber sliver between the pair of calendar rollers and the sliver guiding channel and in that subsequent displacement of the flat can into a transfer position causes the fiber sliver to be severed at the drafting point and to be pulled out of the rotary plate, so that it is positioned with a constant length on the flat can.
摘要:
Hydrophilic open-celled resilient foams containing melamine-formaldehyde resins, characterized by a droplet absorption rate of less than 5 seconds and an EU standard EN ISO 14184-1 formaldehyde emission of less than 100 mg of formaldehyde/kg of foam, and obtainable by (a) heating an aqueous solution or dispersion each containing at least a melamine-formaldehyde precondensate, an emulsifier, a blowing agent and a curing agent to form a foam and crosslink the precondensate, (b) then conditioning the foam at from 120 to 300° C. for from 1 to 180 minutes to remove volatiles, and (c) treating the foam during the conditioning or thereafter with at least one hydrophilicizer and/or with ozone, a corona discharge or a plasma, are useful in hygiene articles to acquire, distribute and immobilize body fluids.
摘要:
The instant invention relates to the deposit of the fiber sliver end after the filling of a flat can. It is the object of the invention to deposit and prepare the sliver end in the area of the filling station on a full flat can in order to facilitate automatic handling of the flat can during transportation as well as automatic handling of the sliver end on a spinning machine at the least possible cost. The invention assumes that the positions between outlet (15) of the rotary plate (12), severing device (18) and flat can (1) in relation to each other are adjustable and that an influence on the point of deposit of the sliver end and on the length of the sliver end results from this selected setting.