Abstract:
There is provided a trisiloxane having a 3-(meth)acryloxy-substituted (hydroxylcyclohexyl)ethyl group, useful in making water absorbing silicone-hydrogel films for biomedical devices, such as contact lens, and a process for producing these monomers. This invention also provides for copolymers made from the trisiloxane having a 3-(meth)acryloxy-substituted (hydroxylcyclohexyl)ethyl group described herein.
Abstract:
Disclosed herein are cobalt complexes containing terdentate pyridine di-imine ligands and their use as efficient, reusable, and selective dehydrogenative silylation,crosslinking, and tandem dehydrogenative silylation-hydrogenation catalysts.
Abstract:
An organic functional silane composition is shown and described herein. An organic functional silane composition comprises a mixture of organic functional silane monomers where at least one of the silane monomers comprises two or more alkoxy groups having C1-C2 alkyl groups and at least one of the silane monomers comprises two or more alkoxy groups having an alkyl group of three or more carbon atoms. The organic functional silane compositions can be employed in a coating composition and can improve one or more properties of the coating including, for example, scrub resistance.
Abstract:
A moisture-curable resin composition comprising (a) a moisture-curable polymer having at least one hydrolysable silyl group; (b) a reactive modifier; (c) a catalyst for catalyzing the reaction between the moisture-curable polymer (a) and reactive modifier (b) under curing conditions; and optionally, the composition can contain one or more conventional components, including pigments, fillers, curing catalysts, dyes, plasticizers, thickeners, coupling agents, extenders, volatile organic solvents, wetting agents, tackifiers, crosslinking agents, thermoplastic polymers, ultraviolet stabilizers, and combination thereof. The moisture-curable resin composition is useful in the production of adhesives including hot melt adhesives, primers, sealants and coatings.
Abstract:
A silane based additive, rubber formulations including the additive and tires having tread portions made with the additive, together with methods of forming those products, are provided. Uncured rubber formulations in accordance with preferred embodiments of the invention comprise (1) a rubbery primary polymer or polymer blend, such as natural rubber and/or synthetic rubber; (2) reinforcing silica filler; (3) a network forming monomer or polymer, especially a thermosetting network forming moiety, for forming a secondary polymeric network; and (4) a silane containing one or more moieties of the aforementioned network forming polymer. In particular networks which can be generated in-situ are preferred. The cured rubber formulation should comprise the silica, having the secondary polymer network coupled thereto, within the rubber matrix, and not directly to the rubber chains via sulfidic linkages.
Abstract:
The present invention relates to a composition and an oxygen permeable hydrous contact lens made therefrom. More particularly, the present invention relates to a composition for an oxygen permeable hydrous contact lens comprising a monomer intramolecularly having silicon-containing moieties, at least one hydrophilic group, a cyclic hydrocarbon group, and an acryloyloxy or methacryloyloxy group; a hydrophilic monomer; and a second silicon-containing monomer, as well as to an oxygen permeable hydrous contact lens obtained from the composition.
Abstract:
A curable composition comprising a hydrolysable silyl-containing polymer and a silicone-containing paint adhesion additive that provide curable silyl-containing polymer composition which has improved adhesion of coatings, paints, adhesives, and other surface treatments thereto.
Abstract:
There is provided a trisiloxane having a 3-(meth)acryloxy-substituted (hydroxylcyclohexyl)ethyl group, useful in making water absorbing silicone-hydrogel films for biomedical devices, such as contact lens, and a process for producing these monomers. This invention also provides for copolymers made from the trisiloxane having a 3-(meth)acryloxy-substituted (hydroxylcyclohexyl)ethyl group described herein.