Patent ID: 7786252

Claim:
A process for forming a multilayered shaped article, comprising: (A) heating a first component comprising (i) at least one polyester comprising: (a) diacid residues comprising at least about 95 mole percent, based on the total diacid residues, of the residues of terephthalic acid; and (b) diol residues comprising at least 95 mole percent, based on the total moles of diol residues, of the residues of at least one diol selected from ethylene glycol and 1,4-cyclohexanedimethanol; (ii) at least one polycarbonate comprising the residues of bisphenol A; or (iii) a homogeneous blend thereof to a temperature of about Tg+100° C. to about Tg+300° C. of said first component; (B) heating a second component comprising a transamidized, homogeneous blend of a polyamide comprising diamine and diacid residues, said polyamide comprising about 100 mole percent, based on the total diamine residues, of the residues of m-xylylenediame and about 100 mole percent, based on the total diacid residues, of the residues of adipic acid, and at least one polyamide selected from nylon 6 and nylon 6,6 to a temperature of about Tg+100° C. to about Tg+300° C. of said second component; (C) forming a shaped article having said first and second polymer compositions in separate layers, wherein said forming comprises lamination, extrusion, coextrusion, calendering, extrusion lamination, thermoforming, blow-molding, stretch-blow molding, extrusion blow-molding, coinjection, injection molding, injection stretch-blow molding, compression molding, casting, drafting, tentering, or blowing; (D) recovering scrap first and second components; (E) grinding said scrap first and second components to produce a regrind; (F) optionally, drying said regrind; and (G) combining said regrind with said first component, second component, or a combination thereof, of steps (A) and (B); wherein said second component of step (B) and said first component of step (A) have a difference in refractive index, RI(second component)−RI(first component), of about 0.006 to about −0.0006, and said shaped article has a percent transmittance of at least 75%, and a haze of 10% or less.