Functionalized multiblock macromonomers and process for their production

US5391628A · kind A · utility

Assignee

• Elf Atochem S.A. · FR

Inventors

• Patrice Gaillard · Bully-les-Mines, FR
• Yves Barbier · Savigny-le-Temple, FR
• Sunil K. Varshney · Grivegnée, BE
• Philippe Teyssie · Flémalle, BE
• Christian Jacobs · Hognoul, BE
• Roger Fayt · Neupré, BE

Key dates

• Filing date: Sep 3, 1992
• Grant date: Feb 21, 1995
• Expiry date: Sep 3, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F297/026
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The application discloses a functionalized multiblock macromonomer of formula: ##STR1## or of formula: ##STR2## in which formulae: each of the blocks A, B and C represents a sequence of a monomer chosen from the acrylic, vinylaromatic, methacrylic, diene, vinylpyridine, vinylpyrrolidone, alkylene oxide, lactam, lactone and maleimide monomer classes, on condition that at least one of the blocks A and C is chosen from a different class to that of block B and that at least one of the blocks A, B or C is a (meth)acrylic sequence, PA1 m, n and p are integers representing the number of monomer units in the sequence under consideration, such that 3.ltoreq.n.ltoreq.1000, 0.ltoreq.m.ltoreq.1000 and 0.ltoreq.p.ltoreq.1000, on condition that m and p are not 0 at the same time, and PA1 F is a group terminated by O.sup.-, by OH, by an .alpha.,.beta.-ethylenic unsaturation, or by an oxirane groups. Also disclosed are processes for preparing the functionalized multiblock macromonomer which macromonomer combines the advantages of multiblock polymers containing acrylic sequences with the reactivity of macromonomers.