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Featured researches published by Bettina Steinmann.


Polymer Bulletin | 1989

Acid curing of epoxides: an unexpected mechanism for the reaction of glycidyl esters with acids

Bettina Steinmann

SummaryProducts from the reaction of acids with glycidyl esters of other acids were analyzed by13C-NMR-spectroscopy and HPLC. Besides the two isomeric structures that are normally formed during the ring-opening of epoxides by acids (α- and \-hydroxy ester), a third structure was observed. This structure was identified by comparative studies as “abnormal” \-hydroxy ester. A mechanism for the reaction of glycidyl esters with acids is postulated.


Archive | 1998

Moulded ophthalmic article

Bettina Steinmann


Archive | 1994

Meth)acrylates containing urethane groups

Bettina Steinmann; Jean-Pierre Dr Wolf; Adrian Schulthess; Max Hunziker


Archive | 1994

Liquid radiation-curable formulation, in particular for use in stereolithography

Jean-Pierre Dr Wolf; Adrian Schulthess; Bettina Steinmann; Max Hunziker


Journal of Applied Polymer Science | 1989

Investigations on the curing of epoxy resins with hexahydrophthalic anhydride

Bettina Steinmann


Archive | 1997

Polymers with crosslinkable pendent groups

Bettina Steinmann


Archive | 1993

Cyclo)aliphatic epoxy compounds

Bettina Steinmann; Jean-Pierre Dr Wolf; Adrian Schulthess; Max Hunziker


Archive | 1992

Photosensitive compositions based on acrylates

Bettina Steinmann; Rolf Wiesendanger; Adrian Schulthess; Max Hunziker


Archive | 2004

Nanoparticle-filled stereolithographic resins

Bettina Steinmann; Alfred Steinmann


Journal of Applied Polymer Science | 1990

Investigations on the curing of epoxides with phthalic anhydride

Bettina Steinmann

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