摘要:
Water-free compositions suitable for application as a surface size to a cellulosic substrate, and methods of applying the water-free compositions to the surface of a cellulosic substrate.
摘要:
The following steps are provided for producing a sheet cellulose material, for instance a handkerchief, comprising at least one adjuvant substance for the treatment of allergic rhinitis: generating an aqueous nano- or micro-emulsion containing nano- or micro-droplet of said at least one substance encapsulated in a protective layer comprising a non-ionic surface-active agent; applying the nano- or micro-emulsion to the cellulose material; evaporating water, leading to the formation of nano- or micro-capsules anchored to the cellulose fibers.
摘要:
A process in which an at least partially delignified pulp fiber web having a Kappa number of less than about 130 is treated with an aqueous endothermic fire retardant solution having a pH of about 10 or less. The treated pulp fiber web has a near neutral pH of from about 5 to about 9, and is treated with at least about 20 lbs of endothermic fire retardants per ton of the pulp fiber web, with at least about 5% of the total amount of endothermic fire retardants being added at a point prior to when the pulp fiber web is formed. Also a fire resistant pulp fiber web having a near neutral pH.
摘要:
The invention relates to carbon black having a C-14 content greater than 0.05 Bq/g and a ratio ΔD50/Dmode of the aggregate size distribution of less than 0.7. The carbon black is produced by thermal oxidative pyrolysis or thermal cleavage of the carbon black raw material in that the carbon black raw material contains renewable carbon black raw materials and an oxygen deficiency is present in the pyrolysis/cleavage reaction. The carbon blacks can be used in rubber and rubber mixtures, plastic, printing inks, inks, inkjet inks, toners, lacquers, paints, paper, adhesives, batteries, pastes, bitumens, concrete, and other building materials and as reducing agents in metallurgy.
摘要翻译:本发明涉及C-14含量大于0.05Bq / g的碳黑,并且聚集体尺寸分布的比D&D D D D / 炭黑是通过炭黑原料的热氧化热解或热裂解产生的,因为炭黑原料含有可再生炭黑原料,热解/裂解反应存在缺氧。 炭黑可用于橡胶和橡胶混合物,塑料,印刷油墨,油墨,喷墨油墨,调色剂,油漆,油漆,纸张,粘合剂,电池,糊料,沥青,混凝土和其他建筑材料,以及冶金中的还原剂 。
摘要:
Described is a process for preparing concentrated solutions or suspensions of anionic organic compounds which comprises a) acidifying an aqueous solution or suspension of an anionic organic compound containing salts and/or impurities to a pH of 4.5 or less, if the pH is above this value, so that b) the anionic organic compound is water-insoluble and precipitates in the form of the free acid, c) bringing the suspension to a salt content below 2% by weight, based on the total weight of the retentate, by means of ultrafiltration with a membrane having pore diameters of from 0.001 to 0.02 μm, and d) optionally washing out the salts with water having a pH below 4,5, e) optionally carrying out acid-free washing with water thereafter, and then f) concentrating, so that the amount of anionic organic compound is 5-50% by weight, and g) if desired, bringing the anionic organic compound into solution by adding an appropriate base.
摘要:
A low density body such as a sheet, board or molding usable as a cushioning material, heat-insulating material, sound-absorbing material, filter, low density base paper or the like is provided. The low density body having a density of 0.05 to 0.45 g/cm.sup.3 is prepared by dewatering a slurry containing fine fibers having a bond-reinforcing factor of at least 0.15 and curled fibers having a wet curl factor of 0.4 to 1.0, and drying the resultant product.
摘要翻译:提供了诸如可用作缓冲材料的片材,板或模制品的低密度体,绝热材料,吸声材料,过滤器,低密度原纸等。 通过使包含粘合强化系数至少为0.15的细纤维和湿卷曲系数为0.4〜1.0的卷曲纤维的浆料脱水,干燥得到的密度为0.05〜0.45g / cm 3的低密度体 产品。
摘要:
Method of treating cellulose fibers wherein the fibers are treated with a composition containing a reagent A-B-X based on cyanuric chloride (A) in which one of the three chlorines has been reacted with an amine or hydroxyl compound (B-X). The reagent reacts under alkaline conditions with cellulose hydroxyl groups. A resin, e.g., polyester or vinyl resin, is then reacted with the thus modified cellulose fibers through the B-X substituent.
摘要:
A composition for a sizing agent comprising (a) 70-99.9 wt. % of a substituted alkyl succinic anhydride or a substituted alkenyl succinic anhydride or a mixture of these succinic anhydrides, and (b) 0.1-30 wt. % of phosphates of polyoxyethylene alkyl ether esters or phosphates of polyoxyethylene alkyl aryl ether esters of a mixture of these phosphate esters and a process for using the composition by dispersing the composition, adding the produced aqueous dispersion to pulse slurry of paper making material, and making the paper. This composition for the sizing agent has excellent storage stability and underwater self-emulsion, and accordingly exhibits excellent sizing effect and provides paper having an excellent sizing effect.
摘要:
An improved sizing composition resistant to hard water precipitation comprises a first component containing a reaction product of urea and an aminocarboxylic acid and a second component comprising a rosin. A process for preparing the improved sizing composition is also disclosed.
摘要:
What is disclosed is a method for making a synthetic veneer, which method comprises impregnating a fibrous web structure with an aqueous dispersion of a finely divided synthetic resin, said dispersion further containing a water-soluble aminoplast resin dissolved therein, and then drying the impregnated web structure by heating it, said synthetic resin being thermoplastically deformable and in a non-crosslinked condition at the beginning of the drying step, but comprising a plurality of groups capable of external crosslinking and which do crosslink during the drying step.