Patents Monsanto

Monsanto Patents. A process for HIPS is described in the patent issued to Carter and Simon (35)and is illustrated in Fig. 20. There are two reactors an anchor agitated CSTR and a reflux cooled LFR. Both reactors can be operated at variable and controllable tillage so that a given product can be made over a range of rates. 

Antibody, anti-cancer, (L6 sFv) Antibody, 1K2 receptor (sFv) 200mg/L 100 mg/L Tobacco [23] Monsanto patent Secreted... 

This is the first publication that discloses many Monsanto patents in the areas of electroless metallization and printing. I hope other potential uses of this technology will be envisioned by the reader. 

In 1994, Monsanto patented a process to recycle aU the components of postconsumer nylon 6,6 carpet, without separation, into a filled thermoplastic product suitable for injection molding [62, 63]. It used a twin-screw extruder to accomplish high-intensity mixing of the thermoplastic from carpet samples. The recycled material contained 35-67 wt% nylon, 8-21 wt% polypropylene, 5-29 wt % SBR, and 10-40 wt % inorganic filler. In one study, no compatibilizer was used [62]. The carpet samples were fed directly into a twin-screw extruder operating at about 250-260°C and at a shear rate of 200-400 s The tensile... 

The words essentially pore free" are extremely restrictive. Pores of even 10-50 A present at an area fraction of even 10 ppm can destroy the permselectivity of a membrane which must discriminate gas molecules with characteristic dimensions of 3-5 A. A significant advance in technology occurred when Monsanto introduced a process to posttreat asymmetric fibcR with a minuscule amount of highly permeable stop leak" material such as silicone mbber. This treatment eliminates most of the Knudsen and viscous contributions to flow through the membrane and produces a high-flux membrane with selectivity approaching that of true dense fiims. As demonstrated in the Monsanto patent on this matter, however, the coating appeaR to be less than perfect, since dense-film selectivities typically are not achieved but may be approached quite closely. Data from applications of this approach are shown in Table 20.1-2 for coated and uncoated fibera. ... 

A Monsanto patent by Lavengood [38] reported on the free radical copolymerization of styrene (S), acrylonitrile (AN) and maleic anhydride (MA) and the use of these terpolymers in the reactive compatibilization of PA6/ABS blends. Indeed, the amine end groups of nylon react with the MA groups of the terpolymer with formation of a graft copolymer at the interface. 

The mechanical properties of the polyblends also depend on the architecture of the compatibilizer. A Monsanto patent reported on the influence of the MA content of... 

Monsanto patented in 1994 a method of processing of all the carpet components without a previous separation [47,48]. The product could be extruded in the twin-screw extruder it contained 35-67 wt% of PA, 8-21 wt% of PP, 5-29 wt% of SBR, and 10-40 wt% of inorganic filler. In the case when compat-ibilizers were not introduced into the blends, the mechanical properties were close to those of polystyrene, but they were much poorer than those of virgin PA66. Considerably better results were achieved after the introduction into the blends of compatilizers of the following types Polybond (maleic anhydride grafted onto PP (PP-g-MA)), Kraton (styrene-ethylene/butadiene-styrene... 

In 1968 the Monsanto Company announced the availability of novel soluble low molecular weight polyphenylene resins. These may be used to impregnate asbestos or carbon fibre and then cross-linked to produce heat-resistant laminates. The basic patent (BP 1037111) indicates that these resins are prepared by heating aromatic sulphonyl halides (e.g. benzene-1,3-disulphonyl dichloride) with aromatic compounds having replaceable nuclear hydrogen (e.g. bisphenoxy-benzenes, sexiphenyl and diphenyl ether). Copper halides are effective catalysts. The molecular weight is limited initially by a deficiency in one component. This is added later with further catalyst to cure the polymer. 

One approach by Monsanto (described in the basic patent BP 1037111) is to prepare a modified polypenylene by reacting an aromatic sulphonyl halide such as benzene-1,3-disulphonyl dichloride with an aromatic compound having replaceable nuclear hydrogen (e.g. bisphenoxybenzene, sexiphenyl and diphenyl ether). This was discussed in Chapter 21. 

Kyrides, L.P. U.S. Patent 2,581,868 January 8, 1952 assigned to Monsanto Chemical Company... 

Jap. Patent 59,025,827 (Jpn. Kokai Tokkyo Koho) to Mitsubishi Monsanto Chemical Co. (1984). 

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