Composite Polyurethane-Polystyrene Thermal Insulation Foams

Title:  METHOD FOR PRODUCTION OF HEAT INSULATING COMPOSITE MATERIALS AND HEAT INSULATING COMPOSITEMATERIAL PRODUCED THEREBY

 Number/Link: WO2013/021324

Applicant/Assignee: HIT KONSULTING

Publication date: 14-02-2013

Gist”: Expandable polystyrene beads are added to rigid PUR or PIR foam system.

Why it is interesting: EPS beads with a softening temperature of 80-90°C are added to the isocyanate stream in an amount of 15-60% w/w to the total system. The exotherm has to be exactly right to fully expand and not degrade the EPS, and is controlled by the ratio PU/EPS.  This idea is not new, but it remains an interesting route to cheap insulation. The claim is relatively narrow so could get granted imo.

Expandable Polystyrene (Wikimedia)

Expandable Polystyrene (Wikimedia)

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1 Comment

  1. bonarmike

     /  February 20, 2013

    You have added here an interesting post, I want to say thanks for sharing this post about thermal Foams Insulation post.

    Reply

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