Thermally reversible composite material

Details Thermally reversible composite material Thermally reversible composite material

2007-12-18

2010-12-28

Gulakowski, Randy (Department: 1766)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Ethylenically unsaturated reactant admixed with either...

C525S431000, C525S479000, C525S451000, C525S471000

Reexamination Certificate

active

07858699

ABSTRACT:
The present invention discloses a thermally reversible composite material. The thermally reversible composite material comprises a Polyhedral Oligomeric Silsesquioxane (POSS) and a cross-linking agent. The Polyhedral Oligomeric Silsesquioxane comprises a plurality of dienophile groups. The cross-linking agent comprises at least two conjugated diene groups. The cross-linking agent interacts with the plurality of dienophile groups of the POSS though the conjugated diene groups to perform a thermally reversible Diels-Alder cycloaddition cross-linking reaction. The invention is applied as thermally reversible package materials.

REFERENCES:
patent: 7345125 (2008-03-01), Isozaki et al.
patent: 2004/0198855 (2004-10-01), Adegawa
patent: 2006/0194068 (2006-08-01), Katoh et al.
patent: 2008/0020213 (2008-01-01), Lichtenhan et al.
Bent et al. “Cyclopentadienyl-functionalised polyhedral silsesquioxanes as building blocks for new nanostructured materials”, Journal of Organometallic Chemistry, 690, 2005, pp. 463-468.

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