摘要:
The invention provides an anti-fogging agent comprising an ester product and at least one further anti-fogging agent. The invention also relates to shaped articles and polymer compositions comprising such anti-fogging agents, and the preparation and use thereof.
摘要:
The present invention relates to a process for preparing a compound having at least one ether group, at least one ester group, at least one amino group or at least one urethane group by a1) preparing 1,2-propanediol by means of a process wherein glycerol is hydrogenated in the presence of a catalyst, glycerol being reacted to at most 95% and a 1,2-propanediol phase obtained and a2) reacting the 1,2-propanediol phase with a compound having at least one active hydrogen atom, at least one epoxide group, at least one ester group or at least one isocyanate group. The present invention relates to the compounds which can be obtained using this process and the chemical products, emulsions, cosmetic formulations, plastics material compositions and drilling compositions prepared using the compound and the use and preparations thereof.
摘要:
Hydraulic oils containing a biodegradable base oil comprising eithera) the product of the ethoxylation and/or propoxylation of glycerol with from about 0.5 to about 3 moles of ethylene oxide and/or propylene oxide and subsequent esterification with a saturated or unsaturated C.sub.6-24 fatty acid, or mixtures thereof; orb) the product of the insertion of from about 0.5 to about 3 moles of EO and/or PO into a natural oil or fat other than castor oil.
摘要:
The preparation of polyol compounds by (a) condensing glycerine in the presence of lithium compounds; (b) continuously distilling off the water produced by the reaction; (c) optionally subjecting the oligoglycerine mixture obtained to a transesterification reaction with fatty-acid glyceride esters. Such polyol compounds are suitable for use as starting materials in the production of polymers.
摘要:
Finely divided solids suspensions can be dewatered by adding to the solids suspension a mixed hydroxy ether of the formula ##STR1## wherein R.sup.1 is a linear hydroxy alkyl group containing from 2 to 16 carbon atoms with the hydroxyl group on the carbon atom adjacent to the carbon atom with the ether linkage and R.sup.2 is a linear alkyl group with 1 to 15 carbon atoms with the proviso that the sum of the total carbon atoms in R.sup.1 and R.sup.2 is 5 to 17, R.sup.3 is a linear or branched alkyl group with 1 to 12 carbon atoms and n is a number of from 1 to 20. The mixed hydroxy ethers are readily biodegradable, generate very little foam and have a low solidification point.
摘要:
A process for removing printing inks from printed wastepaper in the presence of a deinking chemical is provided. In this process printed wastepaper is disintegrated to form a paper stock suspension and the detached printing ink particles are removed in known manner by flotation or washing in another stage. In this process, alkoxylates of blown oils are used as the deinking chemical. The deinking chemical is added during disintegration and/or before the flotation or washing step. Preferably, the printed wastepaper is disintegrated in the presence of 0.02 to 2% by weight and preferably 0.1 to 0.8% by weight, based on air-dry paper stock, of alkoxylates of blown oils. This deinking chemical also removed printing inks from paper circuit waters.
摘要:
A fabric softening composition containing a thiodiglycol derivative corresponding to formula IR.sup.1 --O--(C.sub.2 H.sub.4 O).sub.x --(C.sub.2 H.sub.4 --SO.sub.z --C.sub.2 H.sub.4 --O).sub.w --(C.sub.2 H.sub.4 --O).sub.y --R.sup.2 (I)wherein R.sup.1 and R.sup.2 are the same or different and represent linear or branched alkyl or alkenyl groups containing 6 to 30 carbon atoms or hydrogen, x+y=0 to 20, w is 1 to 5, and z is 1 or 2.
摘要:
The present invention relates to a process for the preparation of an ester in a reactor, wherein at least one of at least two different catalysts is an electron donor and a further catalyst is a sulphur-containing proton donor; a device, a process for the preparation of a thermoplastic composition comprising the ester prepared according to the invention, a process for the production of a shaped article comprising the ester according to the invention or the thermoplastic composition according to the invention, a process for the production of a packed product, a process for the production of an at least partly coated object, and uses of the esters according to the invention as an additive in various compositions.
摘要:
The present invention relates to a thermoplastic composition containing a thermoplastic polymer, a mold release agent, and optionally further additives, wherein the mold release agent contains an ester of at least one alcohol component based on two or more glycerol units, and at least one carboxylic acid or a derivative of a carboxylic acid or both. The present invention also relates to a method for producing a thermoplastic composition, to the thermoplastic composition obtainable by this method, to a method for producing a molded article based on a thermoplastic composition, to a molded article obtainable by this method and also to the use of a mold release agent.
摘要:
The present invention relates to a process for the preparation of a polyurethane, comprising the process steps: i) provision of a polyisocyanate component comprising at least one polyisocyanate; ii) provision of a polyol component comprising at least one polyether polyol, one polyester polyol or a mixture of a polyether polyol and a polyester polyol, wherein the polyol component comprises a polyol ester of a polyol and a monocarboxylic acid; iii) bringing of the polyisocyanate component into contact with the polyol component to form a polyurethane.