Maro Publications

Heat Stabilizers ©

From 04/09/2015 to xx/xx/xxxx

Notes

Patent Abstracts

Patent Titles

 

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Compounding

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Patent Titles

For earlier Patent Titles, go to Sorted Patents /Compounding /Heat Stabilizers.

2/3/2015

8,945,689
Hydrotalcite for P.V.C. stabilizer and a method of thereof

1/27/2015

8,940,824
Heat-stabilized acrylate elastomer composition and process for its production

10/28/2014

8,871,874 
Thermoplastic melt-mixed composition with epoxy-amino acid compound heat stabilizer and processes for their preparation 

10/14/2014

8,859,654 
Heat stabilized polymeric composition with epoxidized fatty acid ester plasticizer 

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Patent Abstracts

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Notes

Heat Accumulators

US Patent 8,957,133 (February 17, 2015), “Polyamide Moldings Comprising Microencapsulated Latent-Heat-Accumulator Material,”  Philippe Desbois, Tina Schroder-Grimonpont, Stephan Altmann, and Marco Schmidt (BASF SE, Ludwigshafen, Germany).

Cast polyamide moldings are based on alkaline rapid polymerization in a mold involving anionic polymerization of lactams.  An advantage of this process is a single step from the monomer to the finished product.  Starting with fluid monomers also enables high filler contents difficult to reach by other methods.  These rigid moldings are used to replace metals.  However, they have a low heat capacity compared to metals leading to higher temperatures during use and increased thermal degradation.  Desbois  et al developed cast polyamide moldings containing microcapsules of a latent-heat-accumulator material.  These accumulators are phase-change materials where the solid/liquid phase transition absorbs heat at constant temperature and later,  leading to slow heat dissipation.  Thus, they can keep temperature within a defined temperature range.  Suitable heat accmululators are aliphatic hydrocarbons, such as linear saturated or unsaturated C10-C40 hydrocarbons.  These materials can be used in battery housings, electronic housings, and food packaging.

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Interested!!
Bookmark this page to follow future developments!.
(RDC 7/16/2012)

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Roger D. Corneliussen
Editor
www.maropolymeronline.com

Maro Polymer Links
Tel: 610 363 9920
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E-Mail: cornelrd@bee.net  

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Copyright 2013 by Roger D. Corneliussen.
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