摘要:
A process for the continuous production of laminated sheet materials of thermoplastic polymers, reinforcing fibers and metals, in which endless sheets of reinforcing fibers, thermoplastic polymers and metals are combined in layers and the layers thus combined are continuously exposed for 0.1 to 10 minutes to a pressure of 0.5 to 50 bar at a temperature 20.degree. to 150.degree. C. above the melting temperature of the thermoplastic polymer.
摘要:
Process for the manufacture of continuous moulded bodies from structures of reinforcing fibres impregnated with thermoplastic plastics, wherein a structure of reinforcing fibres is passed through a melt of the thermoplastic at a pressure of 1 to 800 bar for a length of at least 300 mm and a device for carrying out the process.
摘要:
Continuous process for producing unidirectionally reinforced composite materials by impregnating a continuous reinforcing fiber strand with a thermoplastic matrix in an impregnating bath containing a dispersion of a thermoplastic powder by measuring the width of the strand leaving the impregnating bath and using this measured value for regulating the polymer concentration in the impregnating bath.
摘要:
The present invention provides novel antimicrobial immobilized 1,2-benzisothiazolin-3-one/zinc oxide (BIT/ZnO) complexes useful as antimicrobial agents because of their resistance to being leached from the substrate to which they are attached. The present invention is also directed to methods for preparing the BIT/ZnO complexes, to BIT/ZnO complexes prepared by the novel methods, to methods for using the BIT/ZnO complexes to inhibit microbial growth or reduce the level of bacteria on the surface of a substrate, and to substrates protected to from microbial attack by being treated with the BIT/ZnO complexes. The present invention is further directed to compositions comprising 1,2-benzisothiazolin-3-one which has been immobilized with zinc oxide.
摘要:
The present invention relates to an enantioselective cation-exchange material, comprising a chiral selector (1), composed of a chiral component (2) and at least one cation-exchange group (X), a spacer (3) and a carrier (4). The cation-exchange material is characterized in that the chiral component (2) has a molecular weight of less than 1,000 and the at least one cation-exchange group (X) is an acid group having a pKa
摘要:
Preparation of biocidal polymers and copolymers based on free radical-polymerizable and copolymerizable ethylenically unsaturated monomers containing monomer units composed of BCM salts of ethylenically unsaturated carboxylic acids, sulfonic acids or phosphonic acids, solutions thereof and preferably aqueous dispersions thereof. Processes for their preparation and their use as fungicidal and algicidal impregnating agents, paints and finishing agents for scumbles and dispersion paints providing protection against blue staining on wood, for synthetic resin renderings, for exposed concrete paints and for textile finishing agents.
摘要:
Granulate-form agglomerates of pulverulent rubber chemicals having a maximum primary grain size of 500 .mu.m , an active substance content of at least 90% by weight and an assessment (a) in the intermixing test of at the most 1.5, (b) in the dust proportion test of at the most 10, (c) in the fine material proportion test of at the most 5 and (d) in the falling test of at the most 70, as well as a process for its production characterized in that the pulverulent rubber chemicals of a maximum primary grain size of 500 .mu.m are mixed with a moistening agent and/or a lubricant and are supplied to a double shaft screw granulator with forced conveyance, in which the spacing between the nozzle plate and the vertically cut screw ends is between 0 and 1.6 mm, whereby the compression ratio K.sub.D is between 1:6 and 1:1.5 and the ratio of nozzle channel length to nozzle channel diameter is between 1 and 6, and whereby the specific granulation work is from 2 to 40 Wh/kg, the rubber chemicals are forced axially through a nozzle perforating plate, the issuing strands are severed or are allowed to break-off and are then dried.
摘要:
Highly concentrated, water-based dispersions of certain lipophilic and/or hydrophobic antimicrobially active materials are stabilized to a surprising degree by a surfactant combination including a nonionic acrylic graft copolymer surfactant and a alkoxylated polyarylphenol phosphate ester surfactant. The active materials may be present in dispersion concentrates of the present invention singly or in useful combinations. The active materials are selected from the group of fungicides and bactericides consisting of 1,2-benzisothiazol-3(2H)-one; 2-octyl-2H-isothiazol-3-one; 5-chloro-2-methyl-2H-isothiazol-3-one; 2-methyl-2H-isothiazol-3-one; pyrithione zinc; 3-iodo-2-propynyl butylcarbamate; 2-methylthio-4-ethylamino-6-tert-butylamino-s-triazine; and 3-(4-isopropylphenyl)-1,1-dimethylurea, and mixtures thereof. The dispersion concentrates may be efficiently shipped and stored, and subsequently diluted with water to produce less concentrated dispersions when desired. Even at relatively high concentrations, the dispersion compositions of the present invention can be stored for months or years without significant loss of stability.
摘要:
The present invention provides novel antimicrobial immobilized 1,2-benzisothiazolin-3-one/zinc oxide (BIT/ZnO) complexes useful as antimicrobial agents because of their resistance to being leached from the substrate to which they are attached. The present invention is also directed to methods for preparing the BIT/ZnO complexes, to BIT/ZnO complexes prepared by the novel methods, to methods for using the BIT/ZnO complexes to inhibit microbial growth or reduce the level of bacteria on the surface of a substrate, and to substrates protected from microbial attack by being treated with the BIT/ZnO complexes. The present invention is further directed to compositions comprising 1,2-benzisothiazolin-3-one which has been immobilized with zinc oxide.
摘要:
Enantioseparation methods using chemical compounds which contain the chiral 9,11-substituted-10,11-dihydro-cinchonan skeleton (9,11-Subst.-DHC) and the precursors thereof with the 9-substituted cinchonan skeleton (9-Subst.-C) are described and discussed. The chiral compounds of the present invention are based on cinchonan derivatives containing amide structure elements which support effectively and co-operatively the enantioseparation of chiral acidic selectands involving also ion-pair and ion-exchange binding mechanism between the strong amino group of the selector and the acidic group of the selectand. The methods of enantioseparation of the present invention are related to stereoselective liquid-liquid and liquid-solid type extraction principles and fractionated crystallization employing cinchonan derivative type selectors. In one embodiment of the present invention the chiral selector is immobilized onto support material or is incorporated within a polymer or is part of a polymer used for liquid-solid enantioseparation techniques.