Ciba Specialty Chemicals Corporation

Basf Se Corporation

Udc Ireland Limited

Anthony David Debellis

Ramanathan Ravichandran

Stephen D Pastor

Mervin Gale Wood

Joseph Suhadolnik

Robert E Detlefsen

Joseph E Babiarz

Rong Xiong

Andrew Brian Naughton

Deborah Judd

Hans-Werner Schmidt

Jean-Pierre Wolf

Sai Ping Shum

Revathi Iyengar

Klaus H Stoll

Matthew E Gande

Jonathan Rogers

Andrew J Leggio

Nils Mohmeyer

Hui Chin

Norihisa Dan

Per Magnus Kristiansen

François Maike

Stephen Daniel Pastor

Disclosed are electret materials with outstanding thermal and charge stability. The electret materials comprise a melt blend of a thermoplastic polymer and one or more compounds selected from the aromatic trisamides. The aromatic trisamides are for example of the formula The melt blends are subjected to an electret treatment, for example a corona treatment. The electret materials are for example nonwoven polyolefin webs and are employed as filter materials, wipes, absorbent materials, filter masks, acoustic materials, printing substrates, measuring devices or contactless switches. The present electret materials may also comprise a further additive selected from the hindered amine light stabilizers and the hydroxyphenylalkylphosphonic esters or monoesters.

Electret materials

Disclosed are electroluminescent devices that comprise organic layers that contain certain 2H-benzotriazole compounds. The 2H-benzotriazole compounds of blue-emitting, durable, organo-electroluminescent layers. The electroluminescent devices may be employed for full color display panels in for example mobile phones, televisions and personal computer screens.

Electroluminescent device

The present invention relates to novel ultraviolet light absorbers of the benzoxazinone, oxanilide, benzylidene malonate, quinazoline and benzotriazole classes. The invention also relates to polymer and photographic compositions stabilized against the deleterious effects of light induced degradation which comprise the novel ultraviolet light absorbers.

Ultraviolet light absorbers

Benzotriazole UV absorbers which are substituted at the 5-position of the benzo ring by an electron withdrawing group exhibit enhanced durability and very low loss rates when incorporated into automotive coatings.

Benzotriazole UV absorbers having enhanced durability

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Stony Point, NY, United States of America

Anthony David Debellis