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US 2019/0055366 A1Published application
Amphiphilic Graft Copolymers
AssigneeBecton, Dickinson and Company
InventorsTheresa Hermel-Davidock, Jianbin Zhang, Tea Datashvili
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Abstract
Amphiphilic graft copolymers comprise a polypropylene backbone and polyoxyalkylene side-chains (PPMA-g-PEO-PPO). These copolymers are suitable as additives to base polymeric formulations for medical devices for improving bond strength, paintability, dyeability, and printablity.
Claims17
An amphiphilic copolymer of Formula (I):
- wherein Me is CH3;
- the molar value of m is in the range from 5 to 25 mole percent;
- and the molar value of n is in the range from 75 to 95 mole percent;
- the molar value of x is in the range from >0 to 40 propylene oxide units;
- and the molar value of y is in the range from >0 to 80 ethylene oxide units.
2 more elements
A process for preparing an amphiphilic copolymer comprising:
- obtaining a maleated polypropylene;
- and
- polymerizing the maleated polypropylene with a polymeramine having monoamine functionality to form the amphiphilic copolymer;
- wherein the amphiphilic copolymer comprises a polypropylene backbone and polyoxyalkylene side-chains.
1 more element
A medical device formed from a blend comprising:
- a base polymeric formulation comprising at least a polymer or co-polymer of propylene;
- and
- an additive comprising a polypropylene-poly(ethylene oxide)-poly(propylene oxide) amphiphilic graft copolymer (PPMA-g-PEO-PPO);
- the PPMA-g-PEO-PPO being present in the blend in an amount in the range of about 0.01 to about 5.0% by weight of the blend.
1 more element
Dependencies are inferred from the claim text.