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US 2002/0177680 A1Published application
Novel polymer compounds
OwnerJeffrey A. Hubbell, Petra van de Wetering +1inventors
InventorsJeffrey A. Hubbell, Petra van de Wetering, Didier S.P. Cowling
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Abstract
Provided is a composition comprising a pre-formed, hydrolytically susceptible non-addition polyanionic polymer comprising polymer strands formed from at least one ethylenically unsaturated monomer and linking the polymer strands by at least one linking moiety comprising a hydrolytically susceptible bond, wherein at least one of which monomers has: i) one or more functional groups that can be titrated with base to form negatively charged functional groups; or ii) one or more precursor groups that are precursors of the functional groups that can be titrated with base; which precursor groups are converted to the functional groups.
Claims12
A composition comprising a pre-formed, hydrolytically susceptible polyanionic polymer comprising:
- at least one linking moiety comprising a hydrolytically susceptible bond;
- and
- linked to the linking moiety at least two polyanionic polymer segments, wherein all polyanionic polymer segments in the polymer are linked to the whole by a said linking moiety, and 90% or more of the polyanionic polymer segments in the composition have molecular weight of 50 kd or less.
A composition comprising a pre-formed, hydrolytically susceptible polyanionic polymer comprising:
- polyanionic polymer segments, wherein 90% or more of the polyanionic polymer segments in the composition have molecular weight of 50 kd or less;
- and
- linking the polyanionic segments at least one linking moiety comprising
- (a) a core which is a C1 to C12 alkylene with three or more linking oxy or thio groups or a mono or disaccharide with three or more terminal oxy groups;
- (b) linked to each linking oxy or thio, —R3n—, where n is zero or greater with the total sum of the n values being at least three, and the R3 radicals are independently:
- 52
- wherein the carbonyl radical is linked to the linking oxy or thio, and wherein R1 and R2 are independently methylene or ethylene which can be substituted with up to two C1 to C4 alkyls;
- and
- (c) the residue after incorporation into the polyanionic polymer segments of unsaturated moieties that are ester or ether linked to by oxy of R3.
6 more elements
A polyanionic polymer comprising:
- two or more linearly linked polyanionic polymer segments linked via terminating oxo or thio moieties derived from a hydroxide or thiol moieties:
- and
- linker moieties cleavable at internal amide, ester or thioester bonds linking the linkers to form the linear polyanionic polymer segments.
A polyanionic polymer comprising:
- polyanionic polymer segments (PAP) containing carboxylates;
- and
- linkers crosslinking the polyanionic polymer segments having the structure:
- 53
- , wherein the illustrated carbonyls adjacent to PAP are derived from the carboxylates, and wherein X, Y and Y2 are independently S, O or NH and R4 is a straight chain C1-C10 alkyl which can be substituted with up to two C1-C4 alkyls and R5 is an hydrolytically susceptible linking moiety comprising C, H and two or more heteroatoms which can be O, S or N, the O, S and N atoms all participating in hydrolytically susceptible bonds or ether or thioether bonds.
2 more elements
A polyanionic polymer comprising hydrolytically susceptible bonds, the polyanionic polymer comprising:
- two or more polyanionic polymer segments:
- linking moieties coupling the polyanionic polymer segments wherein the linking moieties comprise (I) or (II) below or both:
- (I) a segment joined via amide, ester or thioester bonds incorporating an acyl or acyl analog moiety of the polyanionic polymer, wherein the segment comprises:
- (a) a C1 to C12 alkylene with terminal linkers selected from oxy, thio (—S—) or imino (—NR—, where R is H or C1-C6 alkyl) incorporated into the amide, ester or thioester bonds, provided that at least one of the amide, ester or thioestcr bonds is other than an ester bond;
- or
- (b) an amide, ester or thioester linked polymeric segment of (i) hydroxy or thiol C2-C5 carboxylic acid or hydroxy proline derivatives and (ii) {(a) a C1 to C12 alkylene moiety with terminal linkers selected from oxy, thio (—S—) or imino (—NR—, where R is H or C1-C6 alkyl) incorporated into the amide, ester or thioester bonds or (b) an α,ω-diol or a chain extended α,ω-diol};
- or
- (c) an amide, ester or thioester linked polymeric segment of (i) one or more hydroxy or thiol C2-C5 carboxylic acid or hydroxy proline derivatives, (ii) {(a) a C1 to C12 alkylene moiety with terminal linkers selected from oxy, thio (—S—) or imino (—NR—, where R is H or C1-C6 alkyl) incorporated into the amide, ester or thioester bonds or (b) one or more α,ω-diols or chain extended α,ω-diols} and (iii) one or more carbonyldioxy moieties;
- or
- (d) an amide, ester or thioester linked polymeric segment of (ii)(a) a C1 to C12 alkylene moiety with terminal linkers selected from oxy, thio (—S—) or imino (—NR—, where R is H or C1-C6 alkyl) incorporated into the amide, ester or thioester bonds, (ii)(b) one or more chain extended α,ω-diols and (iii) one or more carbonyldioxy moieties;
- or
- (e) an amide, ester or thioester linked polymeric segment of (ii)(b) one or more chain extended α,ω-diols and (iii) one or more carbonyldioxy moieties;
- or
- (f) a direct anhydride formed between acid moieties of the polyanionic polymer;
- or
- (g) an anhydride bridge formed between acid moieties of the polyanionic polymer with carbonyl bridge;
- or
- (I) the residue after a crosslinking reaction of:
- (a) two or more terminal acrylate or methacrylate moieties providing unsaturated bonds available for the crosslinking reaction;
- (b) a segment joining the terminal acrylate or methacrylate moieties via amide, ester or thioester bonds incorporating an acyl bond of the acrylate or methacrylate moieties, wherein the segment comprises:
- (1) a C1 to C12 alkylene with terminal linkers selected from oxy, thio (—S—) or imino (—NR—, where R is H or C1-C6 alkyl) incorporated into the amide, ester or thioester bonds, provided that at least one of the amide, ester or thioester bonds is other than an ester bond;
- or
- (2) an amide, ester or thioester linked polymeric segment of (i) hydroxy or thiol C2-C5 carboxylic acid or hydroxy proline derivatives and (ii) {(a) a C1 to C12 alkylene moiety with terminal linkers selected from oxy, thio (—S—) or imino (—NR—, where R is H or C1-C6 alkyl) incorporated into the amide, ester or thioester bonds or (b) an α,ω-diol or a chain extended α,ω-diol};
- or
- (3) an amide, ester or thioester linked polymeric segment of (i) one or more hydroxy or thiol C2-C5 carboxylic acid or hydroxy proline derivatives, (ii) {(a) a C1 to C12 alkylene moiety with terminal linkers selected from oxy, thio (—S—) or imino (—NR—, where R is H or C1-C6 alkyl) incorporated into the amide, ester or thioester bonds or (b) one or more α,ω-diols or chain extended α,ω-diols} and (iii) one or more carbonyldioxy moieties;
- or
- (4) an amides ester or thioester linked polymeric segment of (ii)(a) a C1 to C12 alkylene moiety with terminal linkers selected from oxy, thio (—S—) or imino (—NR—, where R is H or C1-C6 alkyl) incorporated into the amide, ester or thioester bonds, (ii)(b) one or more chain extended α,ω-diols and (iii) one or more carbonyldioxy moieties;
- or
- (5) an amide ester or thioester linked polymeric segment of (ii)(b) one or more chain extended α,ω-diols and (iii) one or more carbonyldioxy moieties.
26 more elements
Dependencies are inferred from the claim text.