Patent EP0552802A2 successfully refreshed from Google Patents.
EP0552802A2
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EP
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Chemically fixed micelles comprising copolymer
Assignee: Eastman Kodak Co
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Filing: 1993-01-22
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Granted: —
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Expires: 2013-01-22
Abstract
Abstract There is provided copolymer particles wherein the particles are derived from chemically fixed micelles that comprise a copolymer. The copolymer is an amphiphilic block or graft copolymer comprising a water soluble component and an oleophilic component that can be crosslinked in an aqueous environment; and the oleophilic component is crosslinked. The particles can be dispersed in an aqueous continuous phase. The particles can contain other materials associated with the oleophilic component such as biochemical agents or other materials such as photographic materials such as couplers and dyes.
Inventors
- 👤 Mridula C/O Eastman Kodak Company Nair
- 👤 Youngtai c/o Eastman Kodak Company Yoo
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 17:14
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/388; G03C7/3882; A; A61; A61K; A61K9/00; A61K9/48; A61K9/50; A61K9/51; A61K9/5107; A61K9/513; A61K9/5146; A61K9/5153; C; C08; C08G; C08G63/00; C08G63/66; C08G63/664; C08G69/00; C08G69/40; A61K9/10; A61K9/107; A61K9/1075; Y; Y10; Y10S; Y10S525/00; Y10S525/901; Y10S525/937; Y10S525/938; Y10S525/941
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
46 words
Copolymer particles derived from chemically fixed micelles wherein a) the copolymer forming the micelle is an amphiphilic block or graft copolymer comprising a water soluble component and an oleophilic component that can be crosslinked in an aqueous environment and b) wherein said oleophilic component is crosslinked.
Claim 2
Dependent Claim
66 words
A composition comprising a continuous phase having therein chemically fixed micelles composed of a copolymer wherein the composition is characterized in that: a) the continuous phase is aqueous; b) the copolymer forming the micelle is an amphiphilic block or graft copolymer comprising a water soluble component and an oleophilic component that can be crosslinked in an aqueous environment; and c) wherein the oleophilic component is crosslinked.
Claim 3
Dependent Claim
16 words
A composition as claimed in claim 1 wherein said water soluble component is a poly(alkylene oxide).
Claim 4
Dependent Claim
14 words
A composition as claimed in claim 3 wherein said poly(alkylene oxide) is poly(ethylene oxide).
Claim 5
Dependent Claim
43 words
A composition as claimed in claim 1 wherein said oleophilic component is derived from monomers selected from the group consisting of caprolactone; propiolactone; b-butyrolactone; d- valerolactone; e-caprolactam; lactic acid; glycolic acid; hydroxybutyric acid; lysine and its derivatives; and glutamic acid and its derivatives.
Claim 6
Dependent Claim
21 words
A composition as claimed in claim 5 wherein said oleophilic component is functionalized with multifuctional monomers resulting in pendant crosslinkable groups.
Claim 7
Dependent Claim
25 words
A composition as claimed in claim 6 wherein said multifunctional monomers are selected from the group consisting of allyl glycidyl ether; glycidyl methacrylate; and poly(cyanoacrylate).
Claim 8
Dependent Claim
19 words
A composition as claimed in claim 1 wherein said oleophilic component is crosslinked with a polyfunctional acrylate or styrenic.
Claim 9
Dependent Claim
14 words
A composition as claimed in claim 1 wherein said components are biocompatible and biodegradable.
Claim 10
Dependent Claim
19 words
A composition as claimed in claim 1 wherein a drug is associated with the crosslinked core of the micelle.
Claim 11
Dependent Claim
22 words
A composition as claimed in claim 1 wherein the molecular weight of the water soluble component is between about 1,000 and 50,000.
Claim 12
Dependent Claim
21 words
A composition as claimed in claim 1 wherein the molecular weight of the oleophilic component is between about 300 and 25,000.
References Cited (Backward Citations)
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