Biodegradable Resin BioPlastic Biopolymer

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Abstract

Bioplastic Biodegradable Polymer Water Resistant Degradable Foam Thermoformed Sheet Patent 6184261 A foam that is the extrudate of a mixture of a biodegradable polymer, starch, talc, and a blowing agent is provided. This foam is made by extruding a mixture of the above-listed components. This foam is water-resistant and in some variations waterproof making it an effective packing material. Still further, this foam is biodegradable, and thus, it can be disposed without creating environmental waste. In addition, the foam may be extruded into sheets and then thermoformed to form various articles.

Cereplast, Inc. (OTCBB: CERP) designs and manufactures proprietary bio-based, renewable plastics which are used as substitutes for petroleum-based plastics in all major converting processes – such as injection molding, thermoforming, blow molding and extrusions – at a pricing structure that is competitive with petroleum based plastics.

Find Cereplast Natural Plastics Here

Cereplast Compostables™

Cereplast Compostables™ resins are renewable, ecologically sound substitutes for petroleum-based plastic products that replace nearly 100% of the petroleum-based additives used in traditional plastics with bio-based material such as corn, wheat, tapioca and potato starches that primarily come from the Midwest (versus oil from the Middle East).

Certified Compostable
All Cereplast Compostables™ resins are certified as biodegradable and compostable in the United States and Europe. Cereplast’s uniquely formulated compostable resins meet BPI (Biodegradable Products Institute) standards for compostability (ASTM 6400 D99 and ASTM 6868), and European Bioplastics standards (EN 13432). The products made from Cereplast Compostables™ resins break down in less than 180 days when placed in an industrial compost facility. Composting is a natural process that allows greenhouse gas emissions –carbon dioxide – to sequestrate in soil instead of being released into the atmosphere.

Environmental and Economical
Made from renewable resources, Cereplast Compostables™ resins cost remain stable and competitive with traditional resins. Since Cereplast Compostables™ resins are starch-based, rather than petroleum-based, the cost is less subject to fluctuation of fossil fuel prices. In addition, the variety of starch options mitigates the effect of price fluctuations in any one commodity. The manufacturing process for Cereplast Compostables™ resins takes place at a lower heat than required with traditional plastics, further reducing the manufacturing costs for converter

Cereplast Hybrid Resins™

Cereplast Hybrid Resins™ products 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.

Environmental and Economical
Cereplast Hybrid Resins™ products 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™ products is not as influenced by the volatile prices of oil.

The price per pound of Cereplast Hybrid Resins™ products is similar to the price of traditional polyolefin. Cereplast Hybrid Resins™ products 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.

Cereplast Hybrid Resins™ Product Offering
The first product from the Cereplast Hybrid Resins™ family (the Biopolyolefins™) is Biopropylene 50™ (CP-BIO-PP-50), a 50% petroleum and 50% starch-based resin exhibiting similar physical characteristics as traditional polypropylene in the following areas:

Heat deflection temperature
Modulus
Impact strength

Biopropylene™ resin can be used in a variety of manufacturing processing including injection molding, thermoforming, profile extrusion, and extrusion blow molding.

Abstract

Biodegradable Polymers Plastic Materials Injection Molded Patent 5496895 To prepare a biodegradable plastic, biodegradable materials such as starches and a non-biodegradable polymer such as a polystyrene, polyurethane, polyethylene, polypropylene, or polycarbonate are treated: (1) under heat, pressure and reagents to break the polymers; and (2) by adding to them an oxidizing agent. This treatment forms and/or makes available reactive groups for bonding: (1) on the biodegradable material groups such as aldehyde or hydroxyl groups in the case of the carbohydrates and amine groups in the case of proteins and certain other compounds such as urea; and (2) on the non-biodegradable plastic groups such as aldehydes, methyl, propyl, ethyl, benzyl or hyroxyl groups. In one embodiment, plastic and starch are processed in an extruder by: (1) mixing a starch in a range of between 15 percent and 80 percent, an oxidizing agent and an agent to break up the starch and the plastics; and (2) subjecting the combination to sufficient heat and/or pressure to break the plastic into shorter chains and bond monosaccharides to monomers from the non-biodegradable polymer.