Reacting alkylene oxide and glycidy ether to produce OH- or acid-terminated copolymer
AssigneeClariant Produkte (Deutschland) GmbH
InventorsUwe Falk, Hendrik Ahrens, Klaus Poellmann, Martin Glos, Eckart Kraemer
Life of this patent
Estimating the term…
Abstract
Disclosed are copolymers made of alkylene oxides and glycidyl ethers according to formula (I) in which R1 is hydrogen or a C1-C4-alkyl radical, R2 and R4 are an alkyl or aryl radical having 1 to 30 carbon atoms, and R3 is an alkyl or aryl radical having 1 to 50 carbon atoms, which may also contain heteroatoms. A is an alkylene unit having 2 to 6 carbon atoms. In formula (1), x is a number from 0 to 10, y is a number from 0 to 10, n is a number from 0 to 100, k is a number from 1 to 100, R5 is an acid group or hydrogen, and m is a number from 1 to 500, with the proviso that (y+n) must be at least 1.
Claims2
A process for producing a copolymer of formula (1), said process comprising reacting an alkylene oxide and a glycidyl ether in an emulsion polymerization reaction
- in which
- R1 is hydrogen or a C1-C4-alkyl radical,
- R2 and R4 are an alkyl or aryl radical having 1 to 30 carbon atoms,
- R3 is an alkyl or aryl radical having 1 to 50 carbon atoms which optionally contains heteroatoms,
- A is an alkylene unit having 2 to 6 carbon atoms,
- x is a number from 0 to 10,
- y is a number from 0 to 10,
- n is a number from 0 to 100,
- k is a number from 1 to 100,
- R5 is an acid group or hydrogen, and
- m is a number from 1 to 500,
- with the proviso that (y+n) must be at least 1.
Dependencies are inferred from the claim text.