C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
9/51, 260/503.1,
C07D 251/34 (2006.01) C07C 69/604 (2006.01) C07C 275/14 (2006.01) C07D 263/14 (2006.01) C07F 9/09 (2006.01) C07F 9/6521 (2006.01) D06M 11/00 (2006.01) D21H 17/03 (2006.01)
Patent
CA 1249272
A process for sizing paper with anionic hydrophobic sizing agents and cationic retention aids Abstract Sizing agents of which some are novel and which have at least one anionic or acidic group which is optionally in the form of a salt and at least two hydrophobic substituents which each have at least 5 carbon atoms, at least two of the most adjacent hydrophobic substituents being bonded to each other with a linking member which has at least 2 hetero atoms, are particularly suitable for use, together with commercially available polymeric, cationic retention aids, in a process for sizing paper or cardboard.
428999
Berheim Michael
Meindl Hubert
Rohringer Peter
Topfl Rosemarie
Wegmuller Hans
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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