发明名称 |
Control of the melt flow rate of polyolefin mixtures recovered from post-consumer durable goods |
摘要 |
A process for creating polyolefin blends from waste streams with controlled rheological properties can include processing a waste stream to make a mixture comprising a mixture comprising polypropylene and polyethylene and compounding the mixture with one or more peroxides or nitroxides to produce a polyolefin blend. For example, a process can include: determining the required melt flow rate of the end product; determining the ratio of polyethylene to polypropylene to achieve the required melt flow rate; effecting a separation of polypropylene from polyethylene to achieve the desired composition; determining the amount of peroxide or peroxide concentrate required to increase the melt flow rate to the required level; melt compounding the mixture; evaluating the melt flow rate of the product; and adjusting the composition of polyethyelene and polypropylene or the amount of peroxide added if necessary to achieve the required melt flow rate. |
申请公布号 |
US8633256(B2) |
申请公布日期 |
2014.01.21 |
申请号 |
US201213586596 |
申请日期 |
2012.08.15 |
申请人 |
RIISE BRIAN L.;BAEK HYUNG;MBA POLYMERS, INC. |
发明人 |
RIISE BRIAN L.;BAEK HYUNG |
分类号 |
C08G18/16;C08G18/22 |
主分类号 |
C08G18/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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