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Amphiphilic graft copolymers and medical devices with enhanced bond strength

A copolymer and amphoteric technology, applied in the field of amphoteric graft copolymers, can solve problems such as limited use

Active Publication Date: 2020-04-21
BECTON DICKINSON & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PP and PPBM are non-polar (no hydrophilic groups present) and do not contain reactive functional groups, which limits their applications where bonding, solvent bonding, surface coating, laser marking, or dispersion of polar additives (reinforced agents, modifiers or antibacterial fillers) in the field of purposes

Method used

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  • Amphiphilic graft copolymers and medical devices with enhanced bond strength
  • Amphiphilic graft copolymers and medical devices with enhanced bond strength
  • Amphiphilic graft copolymers and medical devices with enhanced bond strength

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0144] Embodiment 1, an amphoteric copolymer comprising polypropylene and a hybrid inorganic-organic small molecule, the amphoteric copolymer having the general formula (I):

[0145]

[0146] Wherein X is an organic group or an organic functional group containing 1-6 carbons; A is a metal, an inorganic oxide, an inorganic hydroxide or any other inorganic material; and n is about 78-99.9 mol%; m is about 0.1-20 mole %; "y" has a molar value of about 0-2.0 mole %; and when y is greater than 0, "Z" includes: M-X 2 ; XSiOR; or XSiOH, where "M-X 2 " is an organometallic salt and "OR" is an alkoxy group having 1-4 carbons.

Embodiment approach 2

[0147] Embodiment 2, the amphoteric copolymer of Embodiment 1, wherein the inorganic-organic hybrid small molecule is the reaction product of an organosilane and an inorganic oxide and / or hydroxide.

Embodiment approach 3

[0148] Embodiment 3, the amphoteric copolymer of Embodiment 1 or 2, wherein X is derived from a compound selected from the group consisting of epoxy, amino, acrylate, methacryloxy, and vinyl; and A is selected from the group consisting of silicon ( Si), aluminum (Al), iron (Fe), titanium (Ti), silver (Ag), zinc (Zn), nickel (Ni), calcium (Ca), copper (Cu), tin (Sn), their Oxides, their hydroxides and mixtures of the foregoing.

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Abstract

Amphiphilic graft copolymers comprise a polypropylene backbone and hybrid micromolecule side-chains based on organo-functional silanes (PP-g-XSiOA) in the presence of a co-agent, for example, difunctional metallic diacrylate monomers, where 'X' is an organic group or an organo-functional group, and 'A' is a metal, an inorganic oxide, an inorganic hydroxide, or any other inorganic material. X may be derived from a compound selected from the group consisting of epoxy, amino, acrylate, methacryloxy, and vinyl; and A is selected from the group consisting of: silicon, (Si), aluminum (Al), iron (Fe), titanium (Ti), silver (Ag), zinc (Zn), nickel (Ni), calcium (Ca), copper (Cu), tin (Sn); oxides thereof; hydroxides thereof; and mixtures of the foregoing. These copolymers are suitable for formingmedical devices and / or as additives to base polymeric formulations for medical devices for improving laser marking, antimicrobial resistance, adhesive free bond strength, paintability and dyeability.

Description

technical field [0001] The principles and embodiments of the present invention generally relate to amphoteric graft copolymers and their use in medical devices. The functionalized polypropylene copolymers disclosed herein are copolymerization products of inorganic-organic hybrid small molecules and polypropylene in the presence of co-agents such as difunctional metal diacrylate monomers. Polypropylene-based graft copolymers have a polypropylene backbone and mixed small molecule side chains (PP-g-XSiOA) based on organofunctional silanes and inorganic moieties, where "X" is an organic or organofunctional group , and "A" is a metal, inorganic oxide, inorganic hydroxide, or any other inorganic material. In propylene-containing polyolefin or thermoplastic elastomer (TPE) formulations, the presence of PP-g-XSiOA enhances the connection between medical device components. For example, the bond strength between the catheter and the connector is enhanced, wherein the connector is made...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F255/02C09C1/30C08K5/5425C08K9/06C08L51/06C08F299/08
CPCC09C1/309C08L23/12A61L29/041A61M2207/00A61L29/049C08L23/10A61L27/16A61L29/14C08F255/02C08L51/06C08L23/14C08F230/08C08K9/06A61M39/10C08F292/00C09J5/00C09J5/06C09J11/08C09J123/12C08F210/06
Inventor T·赫梅尔-达维多克T·达塔什维利
Owner BECTON DICKINSON & CO