Method of making a rubber adaptor for highway guardrail

Details Method of making a rubber adaptor for highway guardrail Method of making a rubber adaptor for highway guardrail

1995-04-14

1996-11-19

Vargot, Mathieu D.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

26421112, 264236, 264349, 264DIG69, 425DIG46, B29C 3500, B29B 1700

Patent

active

055759661

ABSTRACT:
A method of manufacturing a solid rubber adaptor for converting an existing sheet metal highway barrier. The method includes the steps of: mixing and knead melting a mixture of: 80 to 90 percent by weight particles of recycled waste rubber; 10 to 20 percent by weight virgin rubber; and an accelerator composition; forming the mixture to a selected adaptor configuration thus defining an adaptor; curing the mixture within a chamber at a temperature of 350.degree. C. to 400.degree. C. for a period of time from 3 to 5 hours; and removing the cured barrier from the chamber.

REFERENCES:
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patent: 4028288 (1977-06-01), Turner
patent: 4222522 (1980-09-01), Matteo, Sr.
patent: 5106554 (1992-04-01), Drews
patent: 5292467 (1994-03-01), Mandish et al.
patent: 5336016 (1994-07-01), Baatz

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