Method of coextruding plastics to form a composite sheet

Title: Method of coextruding plastics to form a composite sheet

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Abstract

This invention pertains to a method of producing a composite sheet of plastic materials by means of coextrusion. Two plastic materials are matched with respect to their melt indices. These matched plastic materials are then coextruded in a side-by-side orientation while hot and soft to form a composite sheet having a substantially uniform demarkation therebetween. The plastic materials are fed at a substantially equal extrusion velocity and generally have substantially equal viscosities. The coextruded plastics can be worked after coextrusion while they are still hot and soft.

Inventors:

Tsien, Hsue C. ^[1]

(Chatham Township, Morris County, NJ)

Issue Date:: 1985-06-04

Research Org.:: Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA

OSTI Identifier:: 865469

Patent Number(s):: 4521359

Application Number:: 06/327,274

Assignee:: Exxon Research & Engineering Co. (Florham Park, NJ) SNL

DOE Contract Number:: 49-2862

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: method; coextruding; plastics; form; composite; sheet; pertains; producing; plastic; materials; means; coextrusion; matched; respect; melt; indices; coextruded; side-by-side; orientation; hot; soft; substantially; uniform; demarkation; therebetween; fed; equal; extrusion; velocity; viscosities; plastic material; plastic materials; substantially uniform; substantially equal; composite sheet; /264/156/425/

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                    Tsien, Hsue C. Method of coextruding plastics to form a composite sheet.  United States: N. p., 1985. 
        Web.

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                    Tsien, Hsue C. Method of coextruding plastics to form a composite sheet.  United States.

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                    Tsien, Hsue C. Tue .  
        "Method of coextruding plastics to form a composite sheet".  United States.  https://www.osti.gov/servlets/purl/865469.

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@article{osti_865469,

  title        = {Method of coextruding plastics to form a composite sheet},

  author       = {Tsien, Hsue C.},

  abstractNote = {This invention pertains to a method of producing a composite sheet of plastic materials by means of coextrusion. Two plastic materials are matched with respect to their melt indices. These matched plastic materials are then coextruded in a side-by-side orientation while hot and soft to form a composite sheet having a substantially uniform demarkation therebetween. The plastic materials are fed at a substantially equal extrusion velocity and generally have substantially equal viscosities. The coextruded plastics can be worked after coextrusion while they are still hot and soft.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1985},

  month        = {6}

}

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