Aropol resins

Developments have also been made in the company s AME and Aropol resin lines. AME marine resins are used to construct high performance... 

A general purpose (i.e., conventional) unsaturated polyester resin (Aropol 7030, Ashland Chemical Company) and a vinyl ester resin (XD-7608.05, Dow Chemical Company) were used for the study. Benzoyl peroxide in granular form (Cadox BPP-60 WET, Noury Chemical Corp.) was used as initiator, and a solution of 5 wt. % N,N-dimethylaniline (Aldrich Chemical Company) diluted in styrene was used as promoter. 

AropoL [Ashland] Theimoset polyester resins for gel coats, filled molding ctunpds., filament winding, SMC and BMC tq>piics., elec, laminates, pipe, ducts and housing, marine and transportation equipment, appliance, con-... 

Poly(methyl methacrylate) (Aropol Q, Ashland resins)... 

Aropol, Unsaturated polyester resins, Ashland Chemical Co., Composite Polymers Div. 

An unaccelerated, low viscosity, chemical and heat resistant isophthalic resin formulated for RTM and offering similar characteristics to Aropol 7241T-15. 

A preaccelerated, thixotropic isophthalic resin offering excellent corrosion resistance for hand-lay and spray/projection lamination of fume hoods, ducts, tanks, pipes and for storage tank linings and repairs. Is also approved for use in contact with food stuffs. (FDA Title 21, CFR 177.2420.) Less resilient than Aropol 7334T-15. 

AROPOL 7240 Series (Includes 7241 and 7242) (sophthalic resins. Non-fire retardant. Moderate corrosion resistance. Al equipment except fume handling systams to about 180°F. AROPOL 7242 can be used for FDA applications. 

CHEMICAL ENVIRONMENT CONCENTRATION % HETRON 92/99P SERVICE TEMPERATURE, F FOR RESIN TYPES NETRON AROPOL HETRON 72/1t7/197A 7240/7430 SERIES 700/7000 HETRON 920 SERIES/960... 

Acceptable as to odor and taste torAPOPOL 7242 type resin. Steamed 4 hours with atmospheric steam prior to exposure Three 3 hour exposures to 30% nitric at 100 P to simulate cleaning "No discoloration occurs at 5 fp/gal. acid with AROPOL 7242 and HBTRON 700 type construction if surfaces are acid or steam cleaned C veil only AROPOL 7240 only Appears to be erosion/corrosion AROPOL 7240 SAT at 120 F tSee list of tradcrnarks and product names. 

Figure 14.4 gives plots of viscosity (log ri) versus cure time for different shear rates (y) when a general-purpose unsaturated polyester (Aropol 7030, Ashland Chemical Company) was subjected to steady-state shear flow in a cone-and-plate rheometer under an isothermal condition at 60 C. The resin had been prepared by the reaction of propylene glycol with a mixture of maleic anhydride and isophthalic anhydride. The resin system used in Figure 14.4 was cured with BPO as initiator and a solution of 5 wt % A,A-dimethylaniline, diluted in styrene, as accelerator. The following observations are worth noting in Figure 14.4. At an early stage of curing, the rj increased slowly, but then...

Figure 14.29 shows the rise of rj during cure for Aropol 7030 containing (a) 10 wt % PVAc and (b) 20 wt % PVAc in styrene at 60 for various values y. According to Han and Lem (1983), the resin formulation has resin/initiator/accelator = 60/2.0/1.2 on a weight basis, where BPO is the initiator and /V,/V-dimethylaniline is the accelator. It is seen in Figure 14.29 that as the amount of PVAc solution was increased from 10 to 20 wt%, t increased from 3 to 4.3 min, indicating that the presence of low-profile... 

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