Abstract: Plasticized polyisocyanate compositions contain (a) an isocyanate terminated reaction product of a polymeric MDI with a difunctional poly(propylene oxide) homopolymer or difunctional copolymer of at least 85% by weight propylene oxide and up to 15% by weight ethylene oxide, which homopolymer or copolymer has a molecular weight of from about 400 to 2200 and (b) at least one alkyl ester of one or more fatty acids, the polyisocyanate composition having an isocyanate content of from about 8 to about 14% by weight and a Brookfield viscosity of no greater than 5000 cps at 25° C. The plasticized prepolymers are particularly useful in foam formulations for insulating cavities in automotive parts and thermal insulating panels such as the walls of buildings or appliances.

Abstract: The invention involves recycling scrap material having a thermoplastic. The invention includes a method of forming a thermoplastic pre-preg sheet for use in a subsequent molding operation. The method includes shredding a first scrap material having a thermoplastic to form fluff. The fluff has at least about 20 percent weight of thermoplastic. The method further includes sufficiently compacting the fluff into a thermoplastic state sufficient for forming the thermoplastic pre-preg sheet.