Saturated resin

By depolymerizing PET waste with a polyol and subsequently condensing the oligomeric product with a polycarboxylic acid or anhydride, polyester resins are produced which have wide industrial applications. Depending on the polyol and polycarboxylic acid or anhydride used, saturated resins, alkyd resins, or unsaturated resins are obtained. PET wastes have been used for the production of alkyd resins in water thinnable paints. The materials obtained from the reaction of PET with a mixture of fatty acids high in linoleic acid content and trimethylolethane have been used in the preparation of water-dispersible coatings. Products of the depolymerization of PET with trimethylolpropane and pentaerythritol are used in the manufacture of high-solids paints. In the first step, PET is depolymerized with trimethylopropane and pentaerythritol at temperatures of 230-240°C. The final paint compositions contain 30-50% of PET depolymerization products.12... 

A mathematical model for the regeneration of saturated Dowex XFS 4195.02 ion exchange resin was developed, assuming that reaction rate is a controlling step for the regeneration of the Cu -saturated resin in the presence of 1 - 2 N aqueous ammonia solution, as shown in Equation 4. 

The regeneration of copper-saturated Dowex resin with aqueous ammonia was studied, using ammonia solutions with NH OH concentrations from 0.5 - 2.0 N. The relative amounts of resin and regenerating solution were also varied. These results are summarized in Figure 8. Equilibrium concentrations of Cu" in aqueous ammonia solution decrease with increasing amounts of copper-saturated resin, and appear to be independent of the ammonia concentration. 

The regeneration rate constants of Cu" -saturated resin in the presence of aqueous ammonia solutions are independent of resin amounts and dependent upon NH OH concentration. Instantaneous regeneration fractions of the resin are independent of resin amounts and NH.OH concentrations in reaction controlled cases, shown in Figure 9. The reaction rate controlled model is applicable to the regeneration of copper-saturated Dowex XFS 4195.02 resin in solutions with NH OH concentrations ranging from 1 - 2 N. 

Resi-Lam. [Georgia-Pacific] Saturating resins to paper laminating. 

Alkyds are saturated resins produced from the reaction of organic alcohols with organic acids. The ability to use any of the many suitable polyfunctional alcohols and acids permits selection of a large variation of repeating units. Formulating can provide resins that demonstrate a wide variety of characteristics involving flexibility heat resistance, chemical resistance, and electrical properties. 

Uses Nitrile latex for adhesives, grease- and oil-resist, coatings, leather and textile finishes, pigment arid nonwoven fabric bindings, paper saturation, resin modification... 

A typical absorption isotherm has the shape shown in Fig. 3.1. The shape is indicative of the fact that, before the breakthrough point, the column has a top layer of saturated resin (i.e. where the concentration of the desired ion in the resin is in equilibrium with the concentration in the feed solution, according to the distribution coefficient, D) and also a lower unsaturated... 

Imine (Schiff base) formation. Wash the aldehyde-functionalized resin with different methanol solutions, starting with 10% (v/v) methanol and finishing with 100% (v/v) methanol at 10% (v/v) increments (see Note 8). Slurry the methanol-saturated resin in 100% (v/v) methanol (1 mL/g of gel) and place it on a shaker with gentle shaking to prevent the resin from settling. Divide the gel into n aliquots, where n is the number of different amines used to synthesize the combinatorial library (see Note 9). Dissolve a fivefold molar excess (relative to the amount of epoxide in the gel) of each amine in methanol (0.25 mL/mL of slurry). Incubate the n aliquots with the previous mixture at 25°C in a rotary shaker (200 rpm) for 1 h. This procedure allows the amine component to become completely mixed with the supplied resin sample and promote imine formation (22). 

Cut off a 1 mL Gilsonpipette tip at approximately 2 mm from the end to allow for the easy transfer of 1 mL slurry aliquots (methanol-saturated resin in methanol) into the wells of the reaction block (8x12). Remove the flexible end cap-mat at this stage to allow the solvent to completely drain through and thus allow the resin to settle in the block. Replace the end cap-mat in position at the bottom of the block. After all the different amine solutions are loaded into the wells, attach the top cap-mat firmly to the block and shake (1 h, 200 rpm, 25°C). 

An unaccelerated, saturated resin for filler paste manufacture. 

Briefly, boron-saturated resin is transferred to the resin regeneration column R. Potassium deuteroxide regenerant (Item K) is introduced to remove boron to the spent regeneramt tank (item K3). Subsequent heavy water rinses (from Item W) remove excess alkali to the vessel K. ... 

Suspension polymerization was applied to prepare polynor-bomene aosslinked beads suitable for use as supports in organic synthesis. The monomers used included norbor-nene, norbom-2-ene-5-methanol, and aosslinking agents including bis(norbom-2-ene-5-methoxy)alkanes, di(norbom-2-ene-5-methyl)ether, and l,3-di(norbom-2-ene-5-methoxy) benzene. The initial resins, which were unsaturated, were subsequently modified using hydrogenation, hydrofluorination, chlorination, or bromination to yield saturated resins with varying properties. They were reported to be superior to more traditional styrene-divinylbenzene resins due to reduced interference in electrophilic aromatic substitution reactions (e.g., Friedel-Crafts acylation and nitration). 

The thickened epoxy filler system consists of the saturating resin and sdica fiime that have been mixed together in accordance with the manufacturer s recommended procedure in order to provide a smooth surface for appheation of the carbon fiber material. The thickened epoxy filler is used to fill voids and even out the concrete substrate it is also used in between layers of CFRP to ensure intimate contact of the CFRP system at aU locations within the CFRP Uner. 

Cured-in-place A bonded internal repair system using a thin and flexible reinforced textile liner with the outermost layer coated with polyethylene and the inside diameter saturated with liquid thermosetting resin. The liner is usually installed by using water pressure to propel the liner through the pipe and turn it inside out so that the saturated resin side is pressed tightly against the host pipe section to be repaired (Rusch, 2004). 

The value of the coefficient of thermal diffusivity a was set as the coefficient of diffusion D. As bovmdary conditions, the temperature of the body and the shell were set to 21 K and 0 K respectively. Thus, saturated resin at a partial pressure of 21 % of Oxygen (21 K) and no Oxygen (0 K) in the surroiuiding atmosphere were assumed. The traction of Oxygen remaining in the resin in regard to the initial value at a certain time was calculated as the average temperature of all nodes divided by 21 K. 

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