Thiol-ene polymerization with vinylesters and vinylcarbonate

Patent metadata

Field	Value
Publication number	US-9623145-B2
Application number	US-201213627399-A
Country	US
Kind code	B2
Filing date	Sep 26, 2012
Priority date	Oct 3, 2011
Publication date	Apr 18, 2017
Grant date	Apr 18, 2017

Abstract

The present disclosure is directed, in part, to a curable composition, a method for augmenting a structure in a patient with a resorbable biocompatible polymer, and a biodegradable, resorbable implant comprising a biocompatible copolymer. An exemplary embodiment of the curable composition comprises (a) 60 wt. % to 95 wt. % of one or more vinyl ester monomers and/or vinylcarbonate monomers, wherein said one or more vinyl ester monomers and/or vinylcarbonate monomers are respectively selected from compounds of the general formulas (I) and (II) below:

wherein n, m R 1 and R 2 have the meaning defined herein; (b) 0.1 to 40 wt. % of one or more multifunctional thiols; and (c) 0 to 10 wt. % of a biocompatible polymerization initiator.

First claim

The invention claimed is:

1. A curable composition comprising:
(a) 60 wt. % to 95 wt. % of one or more vinyl ester monomers, wherein said one or more vinyl ester monomers are selected from: (i) a vinyl ester monomer having a formula of

wherein n is an integer from 1 to 12; (ii) monomers selected from diethylene glycol bis[O—(O′-vinylmaleinoyl)-polylactate]) (DVMPL); ω,ω′-3,6,9-trioxaundecanedioic acid divinyl ester (TUVE); polyglutamic acid; polyaspartic acid; hyaluronic acid; polylactic acid; polyglycolic acid; and poly(lactide-co-glycolide); (iii) or combinations thereof;
(b) 0.1 to 40 wt. % of one or more multifunctional thiols selected from the group consisting of ethoxylated pentaerythritol tetra-(3-mercaptopropionate); trimethylpropane tri(3-mercapto-propionate); ethoxylated trimethylpropane tri(3-mercapto-propionate); glycol dimercaptoacetate; trimethylolpropane trimercaptoacetate; pentaerythritol tetramercaptoacetate; ethoxylated trimethylolpropane tri-3-mercaptopropionate; and ethoxylated trimethylolpropane tri-3-mercaptopropionate; polypropylene glycol (3-mercaptopropionate); polypropylene glycol (3-mercaptopropionate);

and
(c) 0 to 10 wt. % of a biocompatible polymerization initiator.

2. The curable composition according to claim 1 , wherein at least one of the vinyl ester monomers accounts for 50 mole percent of all monomers contained.

3. The curable composition of claim 1 , wherein said one or more vinyl ester monomers are selected from the group consisting of:

4. A method for augmenting or filling a structure in a patient comprising,
(a) implanting a curable composition into said patient at a site of the structure, wherein the implanting step is performed by injecting the curable composition through a hole in the patient's skin and into a vertebra, the curable composition comprising:
(aa) 60 wt. % to 95 wt. % of one or more vinyl ester monomers, wherein said one or more vinyl ester monomers are selected from compounds of the general formula (I) below:

wherein
n independently ranges from 2 to 1000;
R 1 is independently selected from the group consisting of:
(i) n-valent radicals, each of said n-valent radicals comprising a carbon chain or a carbon cycle or both,

wherein said carbon chain and/or carbon cycle each, independently from one another, comprises from 1 to 30 carbon atoms,
wherein said carbon chain can be straight, branched, saturated or unsaturated, and containing one or more interspersed heteroatoms, said heteroatoms being selected from the group consisting of oxygen, sulfur and nitrogen, and
wherein said carbon chain optionally being substituted with one or more substituents selected from the group consisting of —OH, —COOH, —CN, —CHO, and ═O,
wherein said carbon cycle can be saturated or unsaturated, and containing one or more interspersed heteroatoms, said heteroatoms being selected from the group consisting of oxygen, sulfur and nitrogen, and
wherein said carbon cycle optionally being substituted with one or more substituents selected from the group consisting of —OH, —COOH, —CN, —CHO, and ═O, and
(ii) n-valent radicals of biodegradable, biocompatible oligomers and polymers, said oligomers and polymers being selected from the group consisting of polysaccharides, polypeptides, polyamides, polyesters, polycarbonates, polyethers, and fatty acid derivatives;

(bb) 0.1 to 40 wt. % of one or more multifunctional thiols; and
(cc) 0 to 10 wt. % of a biocompatible polymerization initiator;
(b) initiating said composition to thereby form a resorbable, biocompatible polymer.

5. The method of claim 4 , wherein said initiating is performed by irradiating said curable composition.

6. The method of claim 5 , wherein said irradiating is performed using an optical fiber inserted at the site of the structure.

7. The method of claim 5 , wherein the implanting step has the additional steps of:
inserting a balloon through the hole in the patient's skin into the vertebra;
inflating the balloon to create a void at the site of the structure.

8. The method of claim 4 , wherein the structure is located at a site of one or more of the following: a fracture, a deformity, a void, and a tumor.

9. A biodegradable implant comprising: a copolymer having monomer units of:
(a) 60 wt. % to 95 wt. % of one or more vinyl ester monomers wherein said one or more vinyl ester monomers are selected from: (i) a vinyl ester monomer having a formula of

wherein n is an integer from 1 to 12; and (ii) monomers selected from diethylene glycol bis[O—(O′-vinylmaleinoyl)-polylactate]) (DVMPL); ω,ω′-3,6,9-trioxaundecanedioic acid divinyl ester (TUVE); polyglutamic acid; polyaspartic acid; hyaluronic acid; polylactic acid; polyglycolic acid; and poly(lactide-co-glycolide); (iii) or combinations thereof; and
(b) 0.1 to 40 wt. % of one or more multifunctional thiols selected from the group consisting of ethoxylated pentaerythritol tetra-(3-mercaptopropionate); trimethylpropane tri(3-mercapto-propionate); ethoxylated trimethylpropane tri(3-mercapto-propionate); glycol dimercaptoacetate; trimethylolpropane trimercaptoacetate; pentaerythritol tetramercaptoacetate; ethoxylated trimethylolpropane tri-3-mercaptopropionate; and ethoxylated trimethylolpropane tri-3-mercaptopropionate; polypropylene glycol (3-mercaptopropionate); polypropylene glycol (3-mercaptopropionate);

10. A method of manufacturing a three-dimensional article through an additive manufacturing process, said method comprising:
(a) depositing a layer of a curable composition into a mold of three-dimensional article;
(b) directing an energy source to cause radical polymerization of the curable composition to thereby form a cross-section layer of the 3D object/article, the cross-section layer having a thickness ranging from about 0.001 mm to about 3 mm; and
(c) repeating steps (a) and (b) to form the three-dimensional article in a layerwise fashion, wherein the curable composition comprises:
(aa) 60 wt. % to 95 wt. % of one or more vinyl ester monomers, wherein said one or more vinyl ester monomers are selected from: (i) a vinyl ester monomer having a formula of

wherein n is an integer from 1 to 12; and (ii) monomers selected from diethylene glycol bis[O—(O′-vinylmaleinoyl)-polylactate]) (DVMPL); ω,ω′-3,6,9-trioxaundecanedioic acid divinyl ester (TUVE); polyglutamic acid; polyaspartic acid; hyaluronic acid; polylactic acid; polyglycolic acid; and poly(lactide-co-glycolide); (iii) or combinations thereof;
(bb) 0.1 to 40 wt. % of one or more multifunctional thiols; and
(cc) 0 to 10 wt. % of a biocompatible polymerization initiator.

11. The curable composition according to claim 1 further comprising one or more additives selected from polymerization sensitizers and inhibitors, stabilizers, modifying agents, softeners, dyeing agents, bioactive agents, cells, thickening agents, and fillers.

12. A method for augmenting or filling a structure in a patient comprising,
(a)

Assignees

• Depuy Synthes Products Inc
• Univ Wien Tech

Inventors

• Liska Robert
• Qin Xiaohua
• Mautner Andreas

Classifications

• A61L27/16 Primary

  obtained by reactions only involving carbon-to-carbon unsaturated bonds · CPC title

• C08L33/06

  of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical · CPC title

• A61L2430/02

  for reconstruction of bones; weight-bearing implants · CPC title

• B33Y80/00

  Products made by additive manufacturing · CPC title

• A61L27/54

  Biologically active materials, e.g. therapeutic substances {(A61L27/227 takes precedence)} · CPC title