Polysiloxane prepolymers for biomedical devices
First Claim
Patent Images
1. A copolymer that is the polymerization product of a monomeric mixture comprising a copolymer represented by the general formulae,
M(*Dii*Diol*Dii*PS)x(*Dii*PS)y*Dii*M or
M(*Dii*Diol*Dii*PS)x(*Dii*PS)y*Dii*Diol*Dii*Mwherein:
- each M is independently a polymerizable ethylenically unsaturated radical;
each Dii is independently a diradical residue of a diisocyanate;
each Diol is independently a diradical residue of a diol having 1 to 10 carbon atoms;
each PS is independently a diradical residue of a polysiloxane-diol or a polysiloxane diamine;
each * is independently —
NH—
CO—
NH—
, —
NH—
COO—
or —
OCO—
NH—
;
x is at least 2, andy is at least 1; and
a hydrophilic comonomer and a monofunctional silicone-containing monomer.
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Accused Products
Abstract
A polysiloxane copolymer that is useful for forming biomedical devices comprises blocks (I) and (II) and is terminated at each end with an ethylenically unsaturated radical:
(*Dii*Diol*Dii*PS)x (I)
(*Dii*PS)y (II)
wherein:
- each Dii is independently a diradical residue of a diisocyanate;
- each Diol is independently a diradical residue of a diol having 1 to 10 carbon atoms;
- each PS is independently a diradical residue of a polysiloxane-containing diol or diamine;
- each * is independently —NH—CO—NH—, —NH—COO— or —OCO—NH—:
- x represents the number of blocks (I) and is at least 2, and
- y represents the number of blocks (II) and is at least 1.
116 Citations
24 Claims
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1. A copolymer that is the polymerization product of a monomeric mixture comprising a copolymer represented by the general formulae,
M(*Dii*Diol*Dii*PS)x(*Dii*PS)y*Dii*M or
M(*Dii*Diol*Dii*PS)x(*Dii*PS)y*Dii*Diol*Dii*Mwherein: -
each M is independently a polymerizable ethylenically unsaturated radical; each Dii is independently a diradical residue of a diisocyanate; each Diol is independently a diradical residue of a diol having 1 to 10 carbon atoms; each PS is independently a diradical residue of a polysiloxane-diol or a polysiloxane diamine; each * is independently —
NH—
CO—
NH—
, —
NH—
COO—
or —
OCO—
NH—
;x is at least 2, and y is at least 1; and a hydrophilic comonomer and a monofunctional silicone-containing monomer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A hydrogel copolymer that is the hydrated polymerization product of a monomeric mixture comprising a copolymer represented by the general formulae,
M(*Dii*Diol*Dii*PS)x(*Dii*PS)y*Dii*M or
M(*Dii*Diol*Dii*PS)x(*Dii*PS)y*Dii*Diol*Dii*Mwherein; -
each M is independently a polymerizable ethylenically unsaturated radical; each Dii is independently a diradical residue of a diisocyanate; each Diol is independently a diradical residue of a diol having 1 to 10 carbon atoms; each PS is independently a diradical residue of a polysiloxane-diol or a polysiloxane diamine; each * is independently —
NH—
CO—
NH—
, —
NH—
COO—
or —
OCO—
NH—
;x is at least 2, and y is at least 1; and a hydrophilic comonomer and a monofunctional silicone-containing monomer. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification