December 6, 2012 12:14
Title: COMPOSITE MATERIAL FOR MAKING ARTICLES OUT OF POLYURETHANE DOPED WITH POLYMERIC GEL AND THE PROCEDURE FOR MAKING IT
Number/Link: WO2012160515
Applicant/Assignee: NEW WIND S.R.L.
Publication date: 29-11-2012
“Gist”: Viscoelastic foams produced by dispersing (silicon?) gel particles into the polyol stream.
Why it is interesting: Viscoelastic or “memory foams” are popular in the bedding industry. This case claims to improve upon the current technology by incorporating into the foam matrix 5 to 20% of ‘gel particles’ with a size of 1 to 5mm. Advantages over curent memory foams mentioned are a lower glass transition temperature and a cool or “fresh” feel to the touch. The ‘polymeric gels’ are however ill defined in the text and according to claim 6 “said silicone gel is a SEBS rubber”(?). While being an interesting idea the case has little chance of being granted according to the examiners report.
Posted by Gerhard Bleys
Categories: Flexible Foams
Tags: gels, viscoelastic
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