Resins centrifugally coated

Oxazolldene/allphatlc diisocyanaes can be used as one pot resin systems which cure in the presence of water at ordinary temperatures and pressure.— Flexible bubble-free coatings of polyurethanes have been produced by the use of vacuum centrifugal coating techniques.— New amine catalysts may be used to reduce curing time of polymerization for the production of cast urethanes.— Additional information on polyurethanes sealants is supplied Chapter 4. 

Atlac . [Reichhold/Reactive Polymers] Thermoset polyester resins for fiberglass-reinforced structures, glass-reinforced coatings, mortars in pulp and paper, caustic-chlorine, metal treatment, filament winding, centrifugal casting of large tanks and pipe. 

Target has been to develop solvent-free resins and eliminate the use of acetone. EPA estimates nationwide annual compliance costs to the points system summarized in Table 3.18 of 14 million for existing USA plants. It allows various materials and methods to be compared in terms of their emissions. The MACT model point values are in units of lbs of HAP per ton of resin or gel coat. Point values shown are for vapor-surpassed resins applied manually, mechanically, or by filament winding/centrifugal casting are applicable for unfilled resin systems only. Refer to EPA for more information. 

HAP content 1% by wtj Manual resin application (Hand iay-up/bucket ft too applicationj Mechanical resin application Filament winding/ centrifugal casting Oel-coat application... 

Spin the isolated nuclei onto poly(L-lysine)-coated silicon chips, using a minibench centrifuge with a 1.5-ml Eppendorf tube half-filled with polymerized resin (used to support the silicon chip). Overlay each silicon chip with 0.5 ml of the isolated nuclear suspension and spin for 5 min at 100 g. Poly(L-lysine) (MW 271,000 Sigma, UK) is dissolved in distilled water at 1 mg/ml, and a 50-/il drop is placed on each silicon chip and left for 45 min to adsorb to the surface. After a brief rinse, the chips can be used immediately, or kept for up to 2 weeks in the refrigerator. 

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