摘要:
A polymerizable biomedical composition includes a quaternary ammonium group bonded at its quaternary sites to respective groups R1, R2, R3, and R4. R1 and R2 each include a vinyl moiety such that the composition is at least bi-functional with respect to polymerization.
摘要:
A silylated resin suitable for use as an adhesive binder for composites and in sealant and adhesive dental applications is represented by the general formula (I): in which: R1 is an aliphatic, cycloaliphatic, aryl, hydrocarbon, or fluorocarbon group; R2 is the same as R1 or a different aliphatic, cycloaliphatic, aryl, hydrocarbon, or fluorocarbon group; M2 is the same as M1 or a different functional or nonfunctional group selected from the group consisting of: n is 1-3; x is 1-20; and y is 1-20; which comprises the reaction product of the exchange reaction of a hydroxylated, aminated, or carboxylated acrylic resin represented by the general formula (II): in which: R4 is an aliphatic, cycloaliphatic, aryl, hydrocarbon, or fluorocarbon group with one or more protic functional groups selected from the group consisting of: OH, N—H, and CO2H R5 is H or CH3; and R6 is H or CH3; with a trialkoxyorganosilane or triacyloxyorganosilane represented by the general formula (III): in which: R7, R8, and R9 each is: R10 is an aliphatic, or aryl group which can optionally be substituted with a group from the group of an acrylic group, a methacrylic group, an epoxy group, and a substituted amino, hydroxyl, or carboxylic acid group such as an ester or an amide.
摘要:
A solid polymer electrolyte having(a) a matrix of linear poly(ethylene imine) having the formula (--CH.sub.2H.sub.2 NH--).sub.n ; and(b) a metal salt which is LiI, LiClO.sub.4, NaI, NaBr, KI, CsSCN, AgNO.sub.3, CuCl.sub.2, CoCl.sub.2, or Mg(ClO.sub.4).sub.2, wherein the salt is dissolved in and distributed throughout the poly(ethylene imine) matrix and from more than zero to 0.10 moles of salt are used per mole of monomer repeat unit, --CH.sub.2 CH.sub.2 NH--.
摘要:
A polymerizable biomedical composition includes a quaternary ammonium group bonded at its quaternary sites to respective groups R1, R2, R3, and R4. R1 and R2 each include a vinyl moiety such that the composition is at least bi-functional with respect to polymerization.
摘要:
An etchant/primer composition is provided which includes (a) a compound having the formula RN(CH.sub.2 YCO.sub.2 M).sub.2 (I) wherein R=R.sup.1 or R.sup.2 ; R.sup.1 =an aromatic group; R.sup.2 =a conjugated aliphatic group; Y=a single bond, CH.sub.2, CHCH.sub.3 or C.dbd.CH.sub.2 ; and each M is independently H, an alkali metal, an alkaline earth metal, aluminum, a transition or redox metal or an alkyl group having 1 to 18 carbon atoms, with the proviso that when both M groups are alkyl groups, the compound corresponding to formula I be capable of being easily hydrolyzed, displaced or exchanged with other reagents present in the etchant/primer composition and (b) a polar solvent system. An etchant/primer/adhesive monomer composition is also provided which includes the etchant/primer composition and an adhesive monomer system. One and two step simplified methods for adhering and for preparing a substrate surface, such as a dental substrate surface, to a polymeric material are also provided. Kits which may be used with these compositions and methods are also provided.
摘要:
An etchant primer composition is provided which includes (a) a compound hng the formula RN (CH.sub.2 YCO.sub.2 M).sub.2 (I) wherein R=R.sup.1 or R.sup.2 ; R.sup.1 =an aromatic group; R.sup.2 =a conjugated aliphatic group; Y=a single bond, CH.sub.2, CHCH.sub.3 or C.dbd.CH.sub.2 ; and each M is independently H, an alkali metal, an alkaline earth metal, aluminum, a transition or redox metal or an alkyl group having 1 to 18 carbon atoms, with the proviso that when both M groups are alkyl groups, the compound corresponding to formula I be capable of being easily hydrolyzed, displaced or exchanged with other reagents present in the etchant/primer composition and (b) a polar solvent system. An etchant/primer/adhesive monomer composition is also provided which includes the etchant/primer composition and an adhesive monomer system. One and two step simplified methods for adhering and for preparing a substrate surface, such as a dental substrate surface, to a polymeric material are also provided. Kits which may be used with these compositions and methods are also provided.
摘要:
Dental resin systems prepared from polyfunctional or monofunctional highly-fluorinated methacrylate prepolymers are described. Preferred systems comprise (a) a major amount of a polyfluorinated aligomeric polyfunctional methacrylate such as (PFMA), preferably in combination with a diluent monomer such as 1,10-decamethylene dimethacrylate (DMDMA), methyl methacrylate (MMA), neopentyl dimethacrylate (NPDMA), 1,6-hexamethylene dimethacrylate (HMDMA), etc., or mixtures thereof; and (b) a minor amount of a polyfluorinated monofunctional methacrylate (PFMMA), such as 1,1-dihydropentadecafluorooctyl methacrylate (PDFOMA) as a minor or secondary diluent monomer in a non-hydroxylated bis-GMA resin system. The products are generally useful as hydrophobic dental materials, esepcially as composited (with fillers), sealants and cements.
摘要:
A denture liner composition is provided comprising a methacrylate polymer and/or copolymer in powder form to be wetted by a liquid composition containing dimethacrylate, butyl methacrylate, and long chain methacrylate monomers, the mixture setting upon wetting and being polymerized by visible light and chemical action. A method for using the composition in denture liner formation is also provided.
摘要:
The present invention is directed to an etchant/primer composition, an etchant/primer/adhesive monomer composition, kits using the same and methods using the same for improved bonding to dental structures. The etchant/primer composition comprises a compound having the formula: RN(CH2YCO2M)2 wherein R=R1 or R2; R1=an aromatic group; R2=a conjugated unsaturated aliphatic group; Y=a single bond, CH2, CHCH3 or C═CH2; and each M is independently H, an alkali metal, an alkaline earth metal, aluminum, a transition or redox metal or an alkyl group having 1 to 18 carbon atoms, with the proviso that when both M groups are alkyl groups, said compound is capable of being easily hydrolyzed, displaced, or exchanged with other reagents present in the etchant/primer composition, a polar solvent system, and nitric acid. The etchant/primer/adhesive monomer composition comprises a compound having the formula (I) as noted above, a polar solvent system, an acid selected from the group consisting of nitric acid, hydrochloric acid, citric acid, lactic acid, glycolic acid, formic acid, pyruvic acid and combinations thereof, and adhesive monomer resin, and an initiator. The above-noted compositions are applied to dental structures requiring dental restoration for improved bonding of adhesive resins and polymers to dental structures.
摘要翻译:本发明涉及一种蚀刻剂/底漆组合物,蚀刻剂/底漆/粘合剂单体组合物,使用该组合物的试剂盒以及使用该蚀刻剂/底漆/粘合剂单体组合物的方法,以改进与牙科结构的结合。 蚀刻剂/底漆组合物包含具有下式的化合物:其中R = R 1或R 2; R 1 =芳族基团; R 2 =共轭不饱和脂族基; Y =单键,CH 2,CHCH 3或C = CH 2; M独立地为H,碱金属,碱土金属,铝,过渡金属或氧化还原金属或具有1至18个碳原子的烷基,条件是当两个M基都是烷基时,所述化合物能够 易于水解,置换或与存在于蚀刻剂/底漆组合物中的其它试剂,极性溶剂体系和硝酸交换。 蚀刻剂/底漆/粘合剂单体组合物包含如上所述的具有式(I)的化合物,极性溶剂体系,选自硝酸,盐酸,柠檬酸,乳酸,乙醇酸,甲酸的酸 酸,丙酮酸及其组合,以及粘合单体树脂和引发剂。 将上述组合物应用于需要牙齿修复的牙科结构,以改善粘合剂树脂和聚合物与牙科结构的粘合。