Abstract:
There is provided new mono-(meth)acrylate functionalized hydrophilic silicone monomers containing a polyether with branched linking group, useful in making water absorbing silicone-hydrogel films for contact lens applications. This invention also provides homo-polymers and copolymers made from the mono-(meth)acrylate functionalized hydrophilic silicone monomers described herein. Also provided is a process for producing the monomers and polymers described herein and contact lenses produced from the same.
Abstract:
A composition, suitable for use in producing hydrogel polymer films from which biomedical devices such as contact lenses can be made, comprising at least one hydrophilic silicone macromer. In one aspect, a hydrophilic silicone macromer is of the Formula 1: X—Si(R1)(R2)O—(Si(R3)(R4)O)a—Si(R5)(R6)—Y (1) wherein R1, R2, R3 R4, R5 and R6 are independently selected from a monovalent linear, branched, or cyclic radical with 1 to 50 carbon atoms, that can optionally contain a heteroatom or I; I is RL—RP; Y is a free radical polymerization-effective hydrophilic group with the general structure: RL—RP—Z; RL is a linking residue from a non-isomerizable hydrosilylation effective terminal olefin comprising the general structure —CH2—C(RbR7)—(CR8R9)n, the subscript n is selected from integers from 1 to 10; R7, R8, and R9 can be selected from hydrogen and a mono-valent hydrocarbon radical with 1 to 10 carbon atoms that optionally contain a heteroatom; Rb is selected from a monovalent hydrocarbon radical with 1 to 6 carbon atoms; RP is a spacer group comprising a diavelant hydrophilic organic radical with 0 to 100 carbon atoms and optionally contains heteroatoms, and X is a free radical polymerizable group. The said composition can be polymers and films suitable for use in making contact lenses.
Abstract:
A composition, suitable for use in producing hydrogel polymer films from which biomedical devices such as contact lenses can be made, comprising at least one hydrophilic silicone macromer. In one aspect, a hydrophilic silicone macromer is of the Formula 1: X—Si(R1)(R2)O—(Si(R3)(R4)O)a—Si(R5)(R6)—Y (1) wherein R1, R2, R3 R4, R5 and R6 are independently selected from a monovalent linear, branched, or cyclic radical with 1 to 50 carbon atoms, that can optionally contain a heteroatom or I; I is RL-RP; Y is a free radical polymerization-effective hydrophilic group with the general structure:RL-RP—Z; RL is a linking residue from a non-isomerizable hydrosilylation effective terminal olefin comprising the general structure —CH2—C(RbR7)—(CR8R9)m, the subscript n is selected from integers from 1 to 10; R7, R8, and R9 can be selected from hydrogen and a mono-valent hydrocarbon radical with 1 to 10 carbon atoms that optionally contain a heteroatom; Rb is selected from a monovalent hydrocarbon radical with 1 to 6 carbon atoms; RP is a spacer group comprising a diavelant hydrophilic organic radical with 0 to 100 carbon atoms and optionally contains heteroatoms, and X is a free radical polymerizable group. The said composition can be polymers and films suitable for use in making contact lenses.
Abstract translation:一种适用于生产水凝胶聚合物膜的组合物,其中可以制备诸如隐形眼镜的生物医学装置,其包含至少一种亲水硅氧烷大分子单体。 一方面,亲水性硅氧烷大分子单体为式1:X-Si(R1)(R2)O-(Si(R3)(R4)O)a-Si(R5)(R6)-Y(1)其中 R 1,R 2,R 3,R 4,R 5和R 6独立地选自具有1至50个碳原子的一价直链,支链或环状基团,其可任选地含有杂原子或I; 我是RL-RP; Y是具有一般结构的自由基聚合有效的亲水基团:RL-RP-Z; RL是来自包含通式-CH 2 -C(RbR 7) - (CR 8 R 9)m的非异构化氢化硅烷化有效末端烯烃的连接残基,下标n选自1至10的整数; R 7,R 8和R 9可以选自氢和具有1-10个碳原子的任选含有杂原子的一价烃基; Rb选自具有1至6个碳原子的一价烃基; RP是包含具有0至100个碳原子的疏水性亲水性有机基团并且任选地含有杂原子的间隔基,X是可自由基聚合的基团。 所述组合物可以是适合用于制造隐形眼镜的聚合物和薄膜。
Abstract:
The present invention relates to a fast curing compositions comprising a (meth)acrylamide functionalized hydrophilic silicone monomers having a polyether moiety containing a branched linking group. In one embodiment, such compositions are useful for preparing water-absorbing silicone-hydrogel films for contact lens applications. In one embodiment, the (meth)acrylamide monomers disclosed here have a branched linking group on the polyether moiety which makes it possible to produce hydrophilic polyether modified silicone copolymers without the need to separate various by-products including, but not limited to, unreacted, isomerized polyether and associated high molecular weight by-products.
Abstract:
The present invention relates to a fast curing compositions comprising a (meth)acrylamide functionalized hydrophilic silicone monomers having a polyether moiety containing a branched linking group. In one embodiment, such compositions are useful for preparing water-absorbing silicone-hydrogel films for contact lens applications. In one embodiment, the (meth)acrylamide monomers disclosed here have a branched linking group on the polyether moiety which makes it possible to produce hydrophilic polyether modified silicone copolymers without the need to separate various by-products including, but not limited to, unreacted, isomerized polyether and associated high molecular weight by-products.