A compound has at least three functionalities, including a first functionality (a) that is a sulfonate group or a sulfate group of the formula —(O).sub.d—SO.sub.3M with d=0 or 1 and with M=hydrogen or a monovalent metal cation or a corresponding portion of a multivalent metal cation; a second functionality (b) that is a (meth)acryl residue; and a third functionality (c) that is a carboxylic acid function and/or a thioether group. When the compound is free of silicon, the sulfonate or sulfate group and the (meth)acryl residue are separated from each other by a hydrocarbon-containing residue having a carbon chain. The carbon chain is interrupted by S or NH, or the carbon chain contains a linking group, selected from C(O)NH, NHC(O), NR.sup.8C(O), NHC(O)O, NR.sup.8C(O)O, NHC(O)NH, C(O)NHC(O) and —C(O)S—, wherein R.sup.8 is alkyl or alkenyl or a (meth)acryl group.

The present invention relates to a silicone acrylamide copolymer of high acrylamide monomer content which has transparency and low modulus, employing the following configuration. The copolymer is suitably used for various kinds of medical devices, particularly ophthalmic lenses such as a contact lens, an intraocular lens, an artificial cornea, and is especially suitable for a contact lens. A copolymer comprising (A) a multi-functional (meth)acrylamide monomer having at least one siloxane bond and at least two (meth)acrylamide groups within a molecule and (B) a mono-functional linear silicone (meth)acrylamide monomer.

A cyclic organosilicon compound having a (meth)acrylic group and a urea structure on a silicon atom cures into a product having improved flexibility, surface hardness, and evaporation amenability.

A heterofunctional poly(alkyleneoxide) according to the invention contains a first polymer terminus containing a protected, unprotected, or derivatized amine or aminoalkyl functionality and a second polymer terminus containing an unsaturated functionality. Reaction products, derivatives, and methods of making these materials are also described.

The invention is a polymer composition for film layer comprising less than 50 wt % of a copolymer of ethylene with silane group(s) containing units and at least 50 wt % of a thermoplastic polyolefine free from silane group(s) wherein the polymer composition has creep of less than 1 mm at 90° C., and an adhesion above 20 N/cm. The invention relates to a laminated article with at least one film layer of the polymer composition and a substrate.

The invention is a polymer composition for film layer comprising less than 50 wt % of a copolymer of ethylene with silane group(s) containing units and at least 50 wt % of a thermoplastic polyolefine free from silane group(s) wherein the polymer composition has creep of less than 1 mm at 90° C., and an adhesion above 20 N/cm. The invention relates to a laminated article with at least one film layer of the polymer composition and a substrate.

Molecules or salts thereof are provided, having the structure in Formula I, wherein n.sup.2 and n.sup.4 are the same or different and are independently 1, 2, or 3, and n.sup.3 is 1 to 20; X is oxygen, nitrogen, or sulfur; wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, and R.sup.7 are as described herein. Methods are also provided for the synthesis of and use of the provided molecules in applications for diagnostic testing.

Molecules or salts thereof are provided, having the structure in Formula I, wherein n.sup.2 and n.sup.4 are the same or different and are independently 1, 2, or 3, and n.sup.3 is 1 to 20; X is oxygen, nitrogen, or sulfur; wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, and R.sup.7 are as described herein. Methods are also provided for the synthesis of and use of the provided molecules in applications for diagnostic testing.

Articles and methods related to the manufacture of polymers containing labile crosslinking moieties are generally described.

A contact lens includes a body, having the plurality of monomers including at least some silicone monomer units including at least one zwitterionic distributed throughout the body. The contact lens includes a front surface and a back surface, where the silicone monomer including at least one zwitterionic group can be present in a greater concentration nearest the front surface than the back surface or a point therebetween. The contact lens can be formed by casting a polymer mixture containing the silicone monomer including at least one zwitterionic group.