| Patent Number |
Title Of Patent |
Date Issued |
| 7553880 |
Extended wear ophthalmic lens |
June 30, 2009 |
| An ophthalmic lens suited for extended-wear periods of at least one day on the eye without a clinically significant amount of corneal swelling and without substantial wearer discomfort. The lens has a balance of oxygen permeability and ion or water permeability, with the ion or water |
| 7538146 |
Extended wear ophthalmic lens |
May 26, 2009 |
| An ophthalmic lens suited for extended-wear periods of at least one day on the eye without a clinically significant amount of corneal swelling and without substantial wearer discomfort. The lens has a balance of oxygen permeability and ion or water permeability, with the ion or water |
| 7521519 |
Organic compounds |
April 21, 2009 |
| The invention relates to novel crosslinkable copolymers of formula ##STR00001## wherein the variables are as defined in the claims. The copolymers of the invention are especially useful for the manufacture of biomedical molding, for example ophthalmic moldings such as in particular |
| 7468398 |
Extended wear ophthalmic lens |
December 23, 2008 |
| An ophthalmic lens suited for extended-wear periods of at least one day on the eye without a clinically significant amount of corneal swelling and without substantial wearer discomfort. The lens has a balance of oxygen permeability and ion or water permeability, with the ion or water |
| 6923978 |
Multilayer materials |
August 2, 2005 |
| The invention is directed to a composite material, especially a biomedical device, e.g. an ophthalmic device, preferably a contact lens, with one or more wettable surfaces capable of holding a continuous layer of aqueous fluid thereon which composite material comprises a bulk material an |
| 6878399 |
Method for modifying the surface of biomedical articles |
April 12, 2005 |
| The invention relates to a process for coating a material surface, comprising the steps of: (a) providing an inorganic or organic bulk material; (b) providing one or more polyionic materials at least one of them comprising covalently bound initiator moieties for radical polymerization; |
| 6780980 |
Process for the modification of surface |
August 24, 2004 |
| The present invention relates to a process for the modification of a material surface comprising the steps of (a.sub.1) photochemically fixing one or more different compounds of formula ##STR1##onto the material surface, or (a.sub.2) photochemically fixing a compound of formula ##S |
| 6734321 |
Organic articles |
May 11, 2004 |
| The invention relates to novel composite materials comprising (a) an inorganic or organic bulk material having covalently bound to its surface initiator moieties for radical polymerization; and (b) a hydrophilic surface coating obtainable by applying one or more different ethylenically |
| 6734281 |
Organic polymers |
May 11, 2004 |
| The invention relates to novel oligomers of formula ##STR1##wherein the variables are as defined in the claims. The oligomers of the invention are especially useful for the manufacture of biomedical moldings, for example ophthalmic moldings such as in particular contact lenses. |
| 6730366 |
Process for modifying a surface |
May 4, 2004 |
| The invention relates to a process for coating a material surface comprising the steps of: (a) applying to the material surface one or more different comb-type polymers comprising a polymer backbone and side chains pendently attached thereto, wherein at least a part of the side chains |
| 6715874 |
Organic polymers |
April 6, 2004 |
| The invention relates to novel crosslinkable copolymers of formula ##STR1##wherein the variables are as defined in the claims. The copolymers of the invention are especially useful for the manufacture of biomedical moldings, for example ophthalmic moldings such as in particular contact |
| 6713524 |
Reactive polymers |
March 30, 2004 |
| The invention relates to novel reactive polymers of formula ##STR1##wherein the variables are as defined in the claims. The polymers of the invention are useful for the modification of material surfaces and are particularly suitable for providing biomedical articles such as contact l |
| 6623747 |
Multilayer materials |
September 23, 2003 |
| The invention is directed to a composite material, especially a biomedical device, e.g. an ophthalmic device, preferably a contact lens, with one or more wettable surfaces capable of holding a continous layer of aqueous fluid thereon which composite material comprises a bulk material and |
| 6589665 |
Coated articles |
July 8, 2003 |
| The invention relates to novel composite materials comprising (a) an inorganic or organic bulk material having attached to its surface at least one polyionic material that comprises covalently bound initiator moieties for radical polymerization; and (b) a hydrophilic surface coating ob |
| 6586038 |
Process for the modification of a material surface |
July 1, 2003 |
| The invention relates to a process for coating a material surface. The process comprises the steps of: (a) covalently binding polymerization initiator radicals to the surface; (b) graft polymerizing a vinyl monomer carrying a reactive group onto the initiator-modified material surface an |
| 6555103 |
Biomedical moldings |
April 29, 2003 |
| The present invention is concerned with a biomedical molding comprising a non-biodegradable biocompatible organic polymer comprising attached to its surface radicals of formula ##STR1##wherein the variables are as defined in the claims. The biomedical moldings of the invention are ra |
| 6521352 |
Process for the modification of a material surface |
February 18, 2003 |
| The invention relates to a process for coating a material surface, comprising the steps of: (a) providing a hydrophilic telomer of formulaThe coated articles that are obtainable by the process of the invention have desirable characteristics regarding adherence to the substrate, durabi |
| 6468667 |
Ophthalmic molding |
October 22, 2002 |
| The invention relates to an ophthalmic molding such as a contact lens or any kind of ocular prostheses comprising an organic bulk material having covalently bonded to its surface an acceptor saccharide to which is enzymatically attached one or more further carbohydrates. The ophthalmic |
| 6465056 |
Process for coating a material surface |
October 15, 2002 |
| The invention relates to a process for coating a material surface, comprising the steps of: (a) providing the material surface with polymer brushes comprising polymerization initiator radicals; and (b) graft polymerizing one or more different ethylenically unsaturated hydrophilic m |
| 6447920 |
Organic articles |
September 10, 2002 |
| The invention relates to novel composite materials comprising (a) an inorganic or organic bulk material having covalently bound to its surface initiator moieties for radical polymerization; and (b) a hydrophilic surface coating obtainable by applying one or more different ethylenically |
| 6436481 |
Method of producing a reactive coating by after-glow plasma polymerization |
August 20, 2002 |
| The present invention describes coated articles and methods for preparing such articles, wherein the primary coating comprises a plasma-induced polymer carrying reactive groups. The invention further relates to the reaction of said primary coatings carrying reactive groups with monomeric |
| 6271332 |
Polyurethanes made from polysiloxane/polyol macromers |
August 7, 2001 |
| The present invention describes a polymer and a precursor thereof; a prepolymer made essentially from a macromer that is cross-linked, for example, via its free hydroxy groups with a polyisocyanate, the macromer being made essentially from a polysiloxane and a polyol component; proce |
| 6204306 |
Functionalized photoinitiators, derivatives and macromers therefrom and their use |
March 20, 2001 |
| The present invention relates to .alpha.-aminoacetophenones functionalized with organic diisocyanates, which can be used as reactive photoinitiators; to oligomers and polymers to which such functionalized .alpha.-aminoacetophenones are bonded; to .alpha.-aminoacetophenones having uns |
| 6169127 |
Plasma-induced polymer coatings |
January 2, 2001 |
| The present invention relates to coated particles wherein the polymer chains of the coating are obtainable by after-glow plasma induced polymerization of a monomer under special plasma conditions. The invention further relates to a method for the production of articles coated with a |
| 6099122 |
Process for the functionalization of surfaces |
August 8, 2000 |
| The present invention describes a novel coating process that comprises the use of a functional photoinitiator, or a macroinitiator derived therefrom, in a cascade of process steps, wherein, on the one hand, a functional photoinitiator or a macroinitiator derived therefrom is covalently b |
| 6087412 |
Polymers based on block copolymers |
July 11, 2000 |
| The invention relates to crosslinked polymers, which are polymerisation products of a polymerisable mixture that comprises the following components:a) a macromer of formula C ##STR1## wherein Macro is an m-valent radical of a macromer from which the number m of groups Rx.sub.x - |
| 6043328 |
Polysiloxane-polyol macromers, their preparation and their use |
March 28, 2000 |
| The present invention describes a polysiloxane-polyol macromer which is uninterrupted or interrupted by a bivalent structural element and furthermore carries at least one polymerizable segment on a polyol segment; a polymer comprising a polymerization product of at least one macromer |
| 6039913 |
Process for the manufacture of an ophthalmic molding |
March 21, 2000 |
| The present invention relates to a process for the manufacture of a molding, which comprises the following steps:a) providing at least one prepolymer comprising one or more crosslinkable groups, wherein the prepolymer is an amphiphilic segmented copolymer comprising at least one hydropho |
| 5945498 |
Polysiloxane-comprising perfluoroalkyl ethers and the preparation and use thereof |
August 31, 1999 |
| The present invention describes a free radical polymerizable segmented macromonomer based on perfluoroelkyl ether, polysiloxane and divalent organic segments. This macromoner can be polymerized and used to form moldings, contact lenses, corneal implants and other biomedical articles. |
| 5939466 |
Poly-unsaturated carbohydrate derivatives, polymers thereof and their use |
August 17, 1999 |
| The present invention relates to polymerizable derivatives of carbohydrates comprising a carbohydrate radical and more than one radically polymerizable hydrocarbon group which is linked optionally via a spacer to the carbohydrate radical, to homopolymers, copolymers, block copolymers, |
| 5856416 |
Unsaturated carbohydrate derivatives polymers thereof and their use |
January 5, 1999 |
| The present invention relates to polymerizable derivatives of carbohydrates comprising a compound of formula (I)whereinR.sup.1 is a radically polymerizable hydrocarbon group;m, n and p are 0 or 1;Alk is alkylene having up to 10 carbon atoms;R is a diradical, having up to 20 carbon atoms, of an o |
| 5708152 |
N-substituted chitosan derivatives in a process for their preparation |
January 13, 1998 |
| Chitosan derivatives having structural units of formula I, II and III in random distribution ##STR1## wherein the substituents R.sub.1 are each, independently of one another, H or --Z--R.sub.2 --X, R.sub.3 is H or acetyl, Y is the anion O--Z--R.sub.2 --X, and(a) Z is --CO-- or -- |
| 5693768 |
Unsaturated carbohydrate derivatives polymers thereof and their use |
December 2, 1997 |
| The present invention relates to polymerisable derivatives of carbohydrates comprising a compound of formula (I)whereinR.sup.1 is a radically polymerisable hydrocarbon group; m, n and p are 0 or 1; Alk is alkylene having up to 10 carbon atoms; R is a diradical, having up to 20 carbon ato |
| 5621018 |
Functionalized photoinitiators, macromers thereof, and the use thereof |
April 15, 1997 |
| Compounds of formula I: ##STR1## are disclosed. The compounds are photoinitiators which can be functionalized by means of ethylenic groups or can be bonded to H-active substances, in order, for example, to modify surfaces by means of photopolymerizable substances. The compounds a |
| 5612391 |
Functionalized photoinitiators, macromers thereof, and the use thereof for contact lens |
March 18, 1997 |
| Contact lenses formed from compounds of formula I: ##STR1## are disclosed. The compounds are photoinitiators which can be functionalized by means of ethylenic groups or can be bonded to H-active substances, in order, for example, to modify surfaces by means of photopolymerizable |
| 5612389 |
Functionalized photoinitiators, macromers thereof, and the use thereof |
March 18, 1997 |
| Compounds of formula I: ##STR1## are disclosed. The compounds are photoinitiators which can be functionalized by means of ethylenic groups or can be bonded to H-active substances, in order, for example, to modify surfaces by means of photopolymerizable substances. The compounds a |
| 5527925 |
Functionalized photoinitiators, macromers thereof, and the use thereof |
June 18, 1996 |
| Compounds of formula I: ##STR1## are disclosed. The compounds are photoinitiators which can be functionalized by means of ethylenic groups or can be bonded to H-active substances, in order, for example, to modify surfaces by means of photopolymerizable substances. The compounds a |
| 4997966 |
Enantiomeric silanes, modified packing material, and use thereof |
March 5, 1991 |
| A compound of formula I ##STR1## wherein R.sub.1 is C.sub.1 -C.sub.4 alkyl, phenyl or benzyl,R.sub.2 is C.sub.1 -C.sub.4 alkyl, phenyl or benzyl,a is 0, 1 or 2,R.sub.3 is linear or branched unsubstituted or OH-substituted C.sub.1 -C.sub.12 alkylene or is phenylene,R.sub.5 is the divalent |
| 4997965 |
Enantiomeric silanes, modified packing material, and use thereof |
March 5, 1991 |
| Compounds of formula I ##STR1## wherein R.sub.1 is C.sub.1 -C.sub.4 alkyl, phenyl or benzyl,R.sub.2 is C.sub.1 -C.sub.4 alkyl, phenyl or benzyl,a is 0, 1 or 2,R.sub.3 is linear or branched unsubstituted or OH-substituted C.sub.1 -C.sub.12 alkylene or is phenylene,X is --O--, --X-- or --N |
| 4425361 |
Formamido-carbamates and their use for combating pests |
January 10, 1984 |
| Formamido-carbamates of the formula ##STR1## wherein R.sub.1 is ##STR2## R.sub.2 is ##STR3## or R.sub.4 --CH.sub.2 --CH.sub.2 --, R.sub.3 is hydrogen, ##STR4## R.sub.4 is ##STR5## R.sub.5, R.sub.6 and R.sub.7 independently of one another are each hydrogen |
| 4424359 |
Vinyl-substituted 2,2'-bipyridine compounds |
January 3, 1984 |
| Vinyl-substituted 2,2'-bipyridine compounds of the formula ##STR1## and complexes thereof with metals or metal compounds other than alkali metals or alkaline earth metals, or alkali metal compounds, or alkaline earth metal compounds are described, R.sub.1 and R.sub.2 being as defined |
