Polymers with biocidal action, process for their preparation and their use
AssigneeClariant GmbH
InventorsGerhard Crass, Uwe Falk, Béla Iván, Gábor Erdödi, Árpád Máthe
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Abstract
Polymers with biocidal action, process for their preparation and their use The invention relates to polymers consisting essentially of structural units of the formula (1) in which R1 is a C1-C4-alkylene group R2, R3 independently of one another, are a C8-C12-alkyl or alkenyl group R4 is methyl or ethyl R5 is hydrogen or methyl and whose molecular weight is between 1000 and 100 000 g/mol, to intermediates for their preparation, to a process for their preparation, and to their use as biocidal coating composition for surfaces and textiles.
Claims13
A method for biocidal finishing of surfaces and/or textiles comprising applying to said surfaces/textiles a polymer consisting essentially of structural units of the formula 1.
- in which
- R1 is a C1-C4-alkylene group
- R2, R3 independently of one another, are a C8-C12-alkyl or alkenyl group
- R4 is methyl or ethyl
- R5 is hydrogen or methyl
- and whose molecular weight is between 1000 and 100 000 g/mol.
A process for the preparation of a polymer consisting essentially of structural units of the formula 2
- in which
- R1 is a C1-C4-alkylene group
- R2, R3 independently of one another, are a C8-C12-alkyl or alkenyl group
- R4 is methyl or ethyl
- R5 is hydrogen or methyl
- said polymer having a molecular weight of from 1000 to 100 000 g/mol, comprising either:
- A)esterifying a compound of the formula 3
- HO—R1—NR2R3 (3)
- with (meth)acrylic alkyl esters in the presence of an esterification catalyst to form an esterified product and an alkanol, removing the alkanol by distillation, and polymerizing by free-radical polymerization of the esterified product to provide the polymer,or
- B) esterifying a polymethacrylic alkyl ester with a compound of the formula 3 in the presence of an esterification catalyst to form an esterified product and an alkanol, removing the alkanol to provide the polymer.
A process for the preparation of a polymer consisting essentially of structural units of formula 1
- in which
- R1 is a C1-C4-a alkylene group
- R2, R3 independently of one another, are a C8-C12-alkyl or alkenyl group
- R4 is methyl or ethyl
- in which
- R1 is a C1-C4-alkylene group
- R2, R3 independently of one another, are a C8-C12-alkyl or alkenyl group
- R4 is methyl or ethyl
- R5 is hydrogen or methyl
- with a methylating or ethylating agent.
A process for the preparation of polymers of the formula 1
- in which
- R1 is a C1-C4-alkylene group
- R2, R3 independently of one another, are a C8-C12-alkyl or alkenyl group
- R4 is methyl or ethyl
- R5 is hydrogen or methyl comprising;
- a) transesterifying a compound of the formula 3
- HO—R1—NR2R3 (3)
- to give a transesterified product comprising a corresponding (meth)acrylic ester,
- b) quaternizing or alkylating the transesterified product with a methylating or ethylating agent to provide a quaternary ammonium compound, and
- c) polymerizing the quaternary ammonium compound by free-radical polymerization of the resulting quaternary ammonium compound to provide the polymer.
A polymer consisting essentially of structural units of the formula (1)
- in which
- R 1 is a C1-C4-alkylene group
- R2, R3 independently of one another, are a C8-C12-alkyl or alkenyl group
- R4 is methyl or ethyl
- R5 is hydrogen or methyl
- and whose molecular weight is between 1000 and 100 000 g/mol.
A polymer consisting essentially of structural units of the formula (2)
- in which
- R1 is a C1-C4-alkylene group
- R2, R3 independently of one another, are a C8-C12, -alkyl or alkenyl group
- R4 is methyl or ethyl
- R5 is hydrogen or methyl
- and said polymer having a molecular weight of from 1000 to 100 000 g/mol.
A compound of the formula 5
- in which
- R1 is a C1-C4-alkylene group
- R2, R3 independently of one another, are a C8-C12-alkyl or alkenyl group
- R4 is methyl or ethyl
- R5 is hydrogen or methyl.
Dependencies are inferred from the claim text.