EP0442653A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Incorporation of desired groups into polymers, the polymers so produced, and compositions containing them
Assignee: Avecia Bv avecia Ltd syngenta Limited zeneca
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Filing: 1991-02-06
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Granted: —
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Expires: 2011-02-06
Abstract
Abstract Process for making a polymer with desired groups Y comprising reacting a precursor polymer having carbon- or nitrogen-bound -NH₂ and/or -NH- groups with at least one compound having a single enolic carbonyl group and at least one group Y. Also the polymer itself and a composition containing it.
Inventors
- 👤 David Alan Pears
- 👤 Gerardus Cornelis Overbeek
- 👤 John Gerard Carey
- 👤 Paul Henry Stenson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 17:54
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/10; C08F8/30
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
92 words
Process for the production of a polymer having desired groups, denoted by Y, incorporated therein, which process comprises reacting a precursor polymer having carbon or nitrogen-bound -NH₂ and/or -NH- precursor groups, which groups are reactable with enolic carbonyl groups, with at least one compound having a single enolic carbonyl group and at least one group Y, wherein by an enolic carbonyl group is meant a carbonyl group having enolic character by virtue of being bonded to an alpha methylene or methine group which is itself bonded alpha to an electron withdrawing group.
Claim 2
Dependent Claim
19 words
Process according to Claim 1 wherein the groups Y are disposed as chain-pendant or terminal groups in the polymer.
Claim 3
Dependent Claim
31 words
Process claims to either claim 1 or claim 2 wherein the electron withdrawing group is an acid ester group, an acid amide group, an aryl group or a ketonic carbonyl group.
Claim 4
Dependent Claim
46 words
Process claims to any one of claim 1 to 3 wherein the enolic carbonyl group is provided as part of a larger grouping selected from those of formulae where R¹, R² or R³ are optionally substituted hydrocarbyl radicles, and Ar is an optionally substituted arylene group.
Claim 5
Dependent Claim
35 words
Process to any one of the preceding claims wherein Y is a crosslink-assisting group, an adhesion-promoting group, a rheology modifying group, a stabiliser group, a corrosion inhibiting group, or a block copolymer-forming polymer chain group.
Claim 6
Dependent Claim
41 words
Process according to any one of the preceding claims wherein Y is selected from an olefinically unsaturated double bond, a thiol group, a nonionic dispersing group, a siloxane group, an epoxide group, a phosphonate or phosphate group, and a polymeric chain.
Claim 7
Dependent Claim
29 words
Process according to claim 6 wherein Y is an olefinically unsaturated double bond provided by a group selected from acryloyl, methacryloyl, allyl, and methallyl, or a substituted derivative thereof.
Claim 8
Dependent Claim
50 words
Process are to claim 6 wherein Y is a siloxane group of formula: -Si(OR⁴) k (R⁵) i wherein i is 0,1, or 2 and k is 1,2, or 3 provided that k plus i equals 3, and R⁴ and R⁵, which may be the same or different, are hydrocarbyl groups.
Claim 9
Dependent Claim
36 words
Process according to any one of the preceding claims wherein the basic structure of the polymer having the desired groups Y is that of an olefinic addition polymer made by a free radical addition polymerisation process.
Claim 10
Dependent Claim
62 words
Process according to claim 9 wherein said olefinic addition polymer is made by forming an olefinic addition polymer bearing chain-pendant carboxyl groups (preprecursor polymer), converting at least a proportion of the chain-pendant carboxyl groups of the preprecurosr polymer to groups providing chain-pendant precursor amino groups (the polymer then being a precursor polymer), and reacting said precursor amino groups with said enolic compound.
Claim 11
Dependent Claim
19 words
Process according to claim 10 wherein the conversion of carboxyl to amino groups is effected by an immination reaction.
Claim 12
Dependent Claim
23 words
Process according to any one of claims 9 to 11 wherein said precursor polymer used in the process is an imminated acrylic polymer.
Claim 13
Dependent Claim
34 words
Process according to any one of claims 1 to 8 wherein the basic structure of the polymer having the desired Y groups is that of a non-free radical addition polymer or a condensation polymer.
Claim 14
Dependent Claim
30 words
Process according to claim 13 wherein the basic structure of the polymer is that of a polyurethane polymer, a polyether polymer, a polyester polymer, a polyimide polymer or polyepoxide polymer.
Claim 15
Dependent Claim
15 words
Process according to claim 14 wherein said basic structure is that of a polyurethane polymer.
Claim 16
Dependent Claim
25 words
Process according to any one of the preceding claims wherein the resulting polymer contains 0.1 to 1000 millimole of groups Y per 100g of polymer.
Claim 17
Dependent Claim
38 words
Process according to any one of the preceding claims wherein the polymer having desired group Y is produced from the process in the form of, or subsequently converted to, an aqueous ― or organic-based dispersion of the polymer.
Claim 18
Dependent Claim
15 words
A polymer when prepared using a process according to any one of the preceding claims.
Claim 19
Dependent Claim
93 words
A polymer having desired groups, denoted by Y, incorporated therein, wherein said polymer has been prepared by a process comprising reacting a precursor polymer having carbon or nitrogen-bound -NH₂ and/or -NH- groups, which groups are reactable with enolic carbonyl groups, with at least one compound having a single enolic carbonyl group and at least one group Y, wherein by an enolic carbonyl group is meant a carbonyl group having enolic character by virtue of being bonded to an alpha methylene or methine group which is itself bonded alpha to an electron withdrawing group.
Claim 20
Dependent Claim
16 words
An aqueous or organic-based dispersion of a polymer according to either claim 19 or claim 20.
Claim 21
Dependent Claim
17 words
An aqueous - or organic-based composition comprising a polymer according to either claim 18 or claim 19.
Claim 22
Dependent Claim
18 words
Composition according to claim 21 which is an aqueous-based composition and comprises an aqueous dispersion of said polymer.
Claim 23
Dependent Claim
16 words
Composition according to either claim 21 or claim 22 wherein said composition is a coating composition.
Claim 24
Dependent Claim
30 words
Composition according to claim 23 wherein said Y groups are those of a type which will take part in a crosslinking reaction during and/or after film formation from the composition.
Claim 25
Dependent Claim
23 words
Composition according to claim 24 wherein said Y groups are selected from olefinically unsaturated double bonds, thiol groups, siloxane groups, and epoxide groups
Claim 26
Dependent Claim
38 words
Composition according to either claim 24 or claim 25 wherein said composition includes a coreactant material, appropriate to the groups Y in the polymer, which takes part in or assists the crosslinking reaction during and/or after film formation.
Claim 27
Dependent Claim
24 words
Composition according to claim 26 wherein said coreactant material is an oxidising catalyst, a photoinitiator, a peroxy curing agent or a metal drier salt.
Claim 28
Dependent Claim
22 words
Composition according to claim 23 wherein said Y group are selected from stabilising groups, phosphonate or phosphate groups, and polymer chain groups.
Claim 29
Dependent Claim
16 words
A film coating derived from a composition according to any one of claims 21 to 28.
References Cited (Backward Citations)
No citation records indexed.
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