Reactive monomers as comonomers for the production of polymers
AssigneeBASF SE
InventorsChristian Hubert Weidl, Uwe Held, Thomas Mausberg, Silke Annika Köhler, Bernd Schneider, Karolina Hofmann, Linda Winkelmann
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Abstract
The present invention relates to the use of reactive monomers as plasticizers in copolymers. The invention further relates to copolymers obtainable by using the reactive monomers. The present invention moreover relates to processes for the lowering of the glass transition temperature of copolymers with use of the reactive monomers.
Claims21
(canceled)
The method according to claim 13, where R1, R2, and R3 are H.
The method according to claim 13, where R4 is —CH2—CH2—CH2—CH2—.
The method according to claim 13, where R5 is H and R6 is —CH3.
The method according to claim 13, where R7 is H.
The method according to claim 13, where X is O.
The method according to claim 13, where the copolymers are produced in a free-radical emulsion polymerization reaction.
The method according to claim 13, where the OH number of the compound of formula (I) is from 2 mg KOH/g to 225 mg KOH/g.
The method according to claim 13, where a polydispersity of the compound of formula (I) is from 1.0 to 2.0.
The method according to claim 13, where the compound is copolymerized with one or more olefinically unsaturated compound.
The method according to claim 13, where the glass transition temperature of the copolymer is lowered by from 5 to 70 K.
A process for lowering of a glass transition temperature of a copolymer comprising adding, during a polymerization reaction, an effective quantity, based on an entire composition of monomers used, of from 0.1 to 50% by weight, of a compound of general formula (I)
- where
- R1, R2, R3 are mutually independently, being identical or different, H or —CH3,
- X is O or C1-C4-alkoxy,
- R4 is a single bond or linear or branched C1-C6-alkylene,
- R5, R6 are mutually independently, being identical or different, H, C1-C5-alkyl, or aryl,
- R7 are mutually independently, being identical or different, H or C1-C6-alkyl, and
- n is an integer from 0 to 200.
A process for the production of a copolymer, where an effective quantity, based on an entire composition of monomers used, of from 0.1 to 50% by weight, of a compound of general formula (I)
- where
- R1, R2, R3 are mutually independently, being identical or different, H or —CH3,
- X is O or C1-C4-alkoxy,
- R4 is a single bond or linear or branched C1-C6-alkylene,
- R5, R6 are mutually independently, being identical or different, H, C1-C5-alkyl, or aryl,
- R7 are mutually independently, being identical or different, H or C1-C6-alkyl, and
- n an integer from 0 to 200.
Dependencies are inferred from the claim text.