Nitto Belgium Nv

Nitto-denko Corporation

Nitto Europe N.v.

Nitto Belgium B.v.

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Bart Forier

Monica Gomes

James Hanley Clark

Yutaka Tosaki

Donald Pinxten

Kousuke Yonezaki

Thomas James Farmer

Minoru Hanaoka

Charly Hoebers

Michael Pellens

Fergal Byrne

Tooru Nakashima

Walter Eevers

Andrew John Hunt

Eiji Yamanaka

A process for the preparation of 2,2,5,5-tetramethyltetrahydrofuran (TMTHF) includes contacting a TMTHF precursor with a solid catalyst, where the TMTHF precursor is 2,5-dimethylhexane-2,5-diol and/or 2,5-dimethyl-4-hexen-2-ol, and where the solid catalyst is a beta zeolite. TMTHF produced by the process may be used as a solvent.

Preparation of TMTHF

Provided is a surface protection sheet that is less susceptible to breaking and tearing caused by adherend processing and can be easily removed from the adherend. The surface protection sheet comprises a substrate and a PSA layer placed on one face of the substrate. The base polymer of the PSA layer has a glass transition temperature of &#x2212;50&#xb0; C. or higher. The surface protection sheet has at least 200% elongation at break in both the machine direction and the transverse direction.

Surface protection sheet

The present invention relates to a method for prevention of premature polymerization during the preparation, purification, transportation and storage of a polymerizable compound with at least one conjugated unsaturated group in the presence of an azine dye-based compound as inhibitor. Further the present invention relates to methods of preparing such inhibitors as well as to the inhibitors itself, as well as to methods of improving solubility and stability of dissolved inhibitors.

Method for prevention of premature polymerization

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Genk, Belgium

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