California-based Cereplast is making news again with the release later this month of a new Cereplast Hybrid Resin called Biopropylene 50. The resin is a 50% petroleum and 50% starch-based resin exhibiting similar characteristics to traditional #5 polyproplene.
Cereplast Hybrid Resins, like Biopropylene 50, are bio-based, replacing 50% or more of the petroleum content in traditional plastic products with bio-based materials such as starches from corn, tapioca, wheat and potatoes.
Cereplast also makes a series of resins using its proprietary blend of starches blended with PLA from NatureWorks LLC. Sustainable is Good reported back in August that Cereplast Resin was being used in a new line of biodegradable toys called Green Toys.
Cereplast founder/president/CEO Frederic Scheer told Injection Molding Magazine his company produces 15 resins, 8 of which are NatureWorks PLA-based containing between 5-62% PLA depending the resin. All Cereplast resins are made of renewable resources and are BPI-certified as 100% compostable.
Cereplast Hybrid Resins are cost-competitive with traditional petroleum-based plastic resin. With significantly more of the resin content derived from starches, the pricing of Cereplast Hybrid Resins is not as influenced by the volatile prices of oil. The price per pound of Cereplast Hybrid Resins is similar to the price of traditional polyolefin.
Cereplast Hybrid Resins can be processed at the same cycle time as traditional plastics, but require less energy in the production process by using significantly lower machine temperatures.
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