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According to the first process of the invention, first such regenerated PES is dissolved in a mixture of a tetra- or higher hydric alcohol and a tri- or lower polyhydric alcohol, and its depolymerization is conducted in the presence of a depolymerization catalyst. A production method filrtype alkyd resins using polyester resins which have been recovered from waste materials such as disused Prodyction bottles and regenerated is described in, for example, Hei 11 A-JP.

Also advance blending of liquid oil and fat in said mixture enables stable progress of the esterification reaction between polyhydric alcohol and fatty acid.

Soft drinks production process flow chart The major raw A process according to claim 1 or 2, in which the tri- or lower polyhydric alcohol is glycerine, ethylene glycol, diethylene glycol, triethylene glycol or propylene glycol. As the esterification catalyst, those earlier named as examples of depolymerization catalyst can be used.

According to the first process of the invention, after conducting the dissolution and depolymerization of the regenerated PES, a polybasic acid component and fatty acid component are added to the system to conduct an esterification reaction to form an alkyd resin. Try our product search File type: Of those, glycerine, ethylene glycol, diethylene glycol, triethylene glycol and propylene glycol are particularly suitable, from the standpoints of depolymerization ability as used in mixtures with said tetra- or higher hydric alcohols e.

Process for producing alkyd resin – Kansai Paint Co., Ltd.

Polyhydric alcohols which are normally solid, such as pentaerythritol, dissolve in the system upon said esterification reaction with fatty acid, to facilitate producyion dissolving and deploymerization of regenerated PES in the next step. The system was maintained at the same temperature for an hour to effect depolymerization of the regenerated PET.

Process for producing polyester resin. The object of the present invention is to provide processes for producing transparent alkyd resins which are substantially free of foreign matters and filtration residue within a short time, using the polyester pocess which have been recovered from waste materials and regenerated.

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In the alcohol mixture, blend ratio of the tetra- or higher hydric alcohol to the tri- or lower polyhydric alcohol is conveniently within a range of 0. Glycol methyl methacrylate The manufacturing process The resin is. Paint compositions having the alkyd resins which are prepared by a process as defined in claim 1 or 2. TABLE 3 Example Comparative Example 8 9 10 11 12 13 14 4 5 6 Starting materials pentaerythritol 89 89 89 89 89 89 89 — — glycerine 29 ethylene glycol 30 6 30 30 30 78 diethylene glycol 51 soybean oil litharge 5.

Paint compositions containing the alkyd resins obtained by the processes of the present invention can be prepared by methods known per se, provided that an alkyd resin of the invention is used as at least a part of the resin binder. A process according to claim 2, in which the depolymerization catalyst is used in an amount ranging from 0.

Examples of the oil and fat, i.

Alkyd Resin Production Process Filetype Pdf

Also examples of tri- or lower polyhydric alcohols include: Properties of the obtained resins are shown in Table 1. Get the price; As one of leaders of global crushing and grinding industry, epoxy resin plant producton flow chart. The method 2 is more convenient, in respect of depolymerizability of regenerated PES.

Of those fatty acid component, fatty acids of drying oils or semi-drying oils having iodine values of at leastinter alia, soybean oil fatty acid and tall oil fatty acid, are preferred. Powered by Create your own unique website with customizable templates.

Alkyd Resin Flow Sheet A process according to claim 1 or 2, in which the tri- or lower polyhydric alcohol is selected from the group consisting of trimethylolpropane, trimethylolethane, glycerine, ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, 1,3-propanediol, 1,4-butanediol, 1,5-pentanediol, neopentyl glycol, 1,6-hexanediol and 1.

Example 8 was repeated except that 2. Of those, dibasic acids and their C 1 -C 6 in particular, C 1 -C 4 alkyl esters are preferred. Search Expert Search Quick Search. Luckily, Supercell released Clash Royale and I got really into it.

January December The esterification reaction for obtaining an alkyd resin following the second process of the present invention can be conducted under esterification reaction conditions known per se. It is also preferred to use the polybasic acid component and the fatty acid component at such ratios that the carboxyl equivalent numbers in the sum of the polybasic acid component and the fatty acid component per one hydroxyl equivalent in the alcohol mixture falls within a range of 0.

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Also alkyd resins which are obtained through the processes of the invention can be conveniently used as resins for room temperature-curing type paints, or those for thermosetting type paints, in combination with curing agents. The processes of the invention utilize waste materials and, therefore, enable recycled utilization of disused PET bottles and the like.

The liquid inks printing process Fountain. As examples of the phosphorus compound, phosphoric acid, phosphorous acid and hypophosphorous acid; and alkyl esters or phenyl esters of these acids e. Manufacturing process of Epoxy resins Most common epoxy resins are produced from a reaction between epichlorohydrin ECH and bisphenol-A BPAthough the latter may be replaced by other raw materials such as aliphatic glycols, phenol and o-cresol novolacs to produce specialty resins.

Manage your page productiln keep your users updated View some of our premium pages: A process according to claim 1 or 2, in which the polyester resin is recycled polyethylene terephthalate. The two commercial isomers of TDI are shown in Figure.

Melamine Formaldehyde Resin Powder of …. This esterification reaction can be conveniently carried out by any method known per se, in the presence of an esterification catalyst such as zinc acetate, litharge, dibutyltin oxide and the like. In the first process of the invention, the depolymerization method of regenerated PES by dissolving it in an alcohol mixture is subject to no critical limitation, so long as the regenerated PES can be dissolved in the alcohol mixture and the depolymerization can be effected.

Of those, pentaerythritol is particularly suitable because of favorable curing and drying property of the painted film proecss the paint compositions in which the resulting alkyd resin is used.

According to the invention, furthermore, paint compositions containing the alkyd resins which are produced by the above first or second process are provided. As fatty acids, those of soybean oil, safflower oil, linseed oil, tall oil, coconut oil, palm kernel oil, castor oil, dehydrated castor oil, fish oil, and tung oil may be named. A SumoBrain Solutions Company. Maintaining the same temperature for 4 hours, an ester-interchange reaction of the soybean oil alcoholysis and depolymerization of the regenerated PET were simultaneously carried out.

Hydrocarbon Resins Hydrocarbon-based resins are used in applications such as print inks, adhesives, polymer- additives and coatings.