Polymer Providing Adhesion
OwnerShaun MORRIS, Alex BIRTLES +2inventors
InventorsShaun MORRIS, Alex BIRTLES, Peter SCOTT, Christopher KAY
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Abstract
Materials having the following structure (A) wherein R and R1 may be the same or different and each independently represents an alkyl or aryl group, X may be hydrogen or a C1 to C20 alkyl group which may be branched or linear and wherein the aromatic ring substituent joined to polymer B is positioned meta or para to the aromatic ring substituent joined to polymer A and, wherein polymer A is a non-polar polymer and polymer B is a polymer formed from at least two polar monomers, the materials are used to improve the adhesion of coatings such as paints, inks and adhesives to polyolefin substrates.
Claims18
A block copolymer having the following structure:
- wherein R and R1 may be the same or different and each independently represents an alkyl or aryl group, X may be hydrogen or C1 to C20 alkyl group which may be branched or linear and wherein the aromatic ring substituent joined to polymer B is positioned meta or para to the aromatic ring substituent joined to polymer A and, wherein polymer A is a non-polar polymer or copolymer and polymer B is a polar copolymer formed from two or more polar monomers.
(canceled)
A solution of the block copolymer according to
-21. (canceled)
A process for the preparation of a block copolymer according to comprising the following steps:
- a) in a first step, polymerising an alkene typically ethylene or propylene, and optionally with one or more higher 1-alkene co-monomers, to form polymer A, the reaction being carried out in the presence of a compound of the formula (I):
- wherein, in the course of the reaction, the compound (I) is terminally incorporated onto polymer A resulting in the formation of a terminally unsaturated intermediate of the formula (II):
- b) optionally, in a second step, recovering the intermediate (II) from the reaction mixture of the first step;
- and
- c) in a third step, reacting the intermediate (II) at its terminal double bond in a subsequent polymerisation reaction with two or more polar monomers to form polymer B:
- wherein R, R1 and X are as previously defined.
Dependencies are inferred from the claim text.