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Featured researches published by Ortwin Schaffer.


Archive | 1990

Copolymers based on long-chain unsaturated esters and ethylenically unsaturated carboxylic acids for making leather and furs water repellent

Ortwin Schaffer; Herbert Dr Bay; Karl Stork; Norbert Greif; Knut Oppenlaender; Walter Denzinger; Heinrich Hartmann


Archive | 1990

Copolymers based on long-chain olefins and ethylenically unsaturated dicarboxylic anhydrides for rendering leathers and skins water-repellent

Ortwin Schaffer; Herbert Dr Bay; Karl Stork; Norbert Greif; Knut Oppenlaender; Walter Denzinger; Heinrich Hartmann


Archive | 1990

Use of copolymerisates based on long chained olefines and ethylenic unsaturated dicarbonic acid anhydrides for waterproofing of leather and fur pelts

Ortwin Schaffer; Herbert Dr Bay; Karl Stork; Norbert Greif; Knut Oppenlaender; Walter Denzinger; Heinrich Dr. Hartmann


Archive | 1990

Use of copolymerisates based on long chain unsaturated esters and ethylenically unsaturated carbonic acids for hydrophobing of leather and fur pelts

Ortwin Schaffer; Herbert Dr Bay; Karl Stork; Norbert Greif; Knut Oppenlaender; Walter Denzinger; Heinrich Dr. Hartmann


Archive | 1992

Condensation polymers of sulfonated phenols, urea, other organic nitrogen-bases, and formaldehyde, and their use as tanning agents and as spraying aids for redispersible polymer powders

Juergen Weiser; Wolfgang Reuther; Karl Stork; Ortwin Schaffer; Gernot Dr. Franzmann; Thomas Schwerzel; Maximilian Angel; Joachim Pakusch; Brigitte Wegner


Archive | 1991

Condensation products of hydroxybenzenemonosulfonic acids, dihydroxydiphenylsulfones, urea and formaldehyde

Hermann Graf; Adolf Dr Stuebinger; Klaus Lorenz; Ortwin Schaffer; Karl Stork


Archive | 1988

Tanning adjuvant, its use and method of tanning leather

Klaus Ebel; Wolfgang Reuther; Rolf Dr Fikentscher; Dietrich Dr. Lach; Rolf Streicher; Ortwin Schaffer


Archive | 1991

PRODUCTS OF THE CONDENSATION OF PHENOLMONOSULFONIC ACIDS, DIHYDROXYDIPHENYL SULFONES, UREA AND FORMALDEHYDE

Hermann Graf; Adolf Dr Stuebinger; Klaus Lorenz; Ortwin Schaffer; Karl Stork


Archive | 1989

Verfahren zum alleingerben von bloessen und zum nachgerben von chromleder

Ortwin Schaffer; Karl Stork; Wolfgang Reuther; Juergen Weiser


Archive | 1992

Condensates of sulphonated phenols, urea, other organic nitrogen containing bases and formaldehyde and their use as tanning agent or as spray composition for redispersable polymer powders

Juergen Weiser; Wolfgang Reuther; Karl Stork; Ortwin Schaffer; Gernot Dr. Franzmann; Thomas Schwerzel; Maximilian Angel; Joachim Pakusch; Brigitte Wegner

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