摘要:
Fluoropolyether poly(meth)acryl compounds comprising at least one terminal perfluoropolyether group and at least two groups (meth)acryl groups. A preferred perfluoropolyether group includes F(CF(CF3)CF2O)aCF(CF3)— group wherein a averages 1 to 15 and at least two groups (meth)acryl groups.
摘要:
A hard coating composition for use as a stain repellent single layer on an optical display. The coating composition adds a monomer of a mono or multi(methyl)acrylate bearing at least one monovalent hexafluoropolypropylene oxide derivative and a free radically reactive compatibilizer consisting of either a fluoroalkyl-group containing acrylate compatibilizer or a fluoroalkylene-group containing acrylate compatibilizer to a conventional hydrocarbon-based hard coat formulation. The resultant coating is substantially smooth and forms a durable surface layer that has low surface energy that is stain and ink repellent.
摘要:
A process for preparing fluorochemical monoisocyanates comprises reacting at least one fluorochemical alcohol represented by the formula CnF2n+1SO2NCH3(CH2)mOH, wherein n=2 to 5, and m=2 to 4, with 4,4′-diphenylmethane diisocyanate (MDI) in a solvent in which the resulting fluorochemical monoisocyanate is not soluble; wherein the molar ratio of fluorochemical alcohol:MDI is from about 1:1 to about 1:2.5.
摘要翻译:一种制备含氟化合物单异氰酸酯的方法包括使至少一种由式C n 2 N 2n + 1 SO 2 NCH 3表示的含氟化合物醇反应, 其中n = 2〜5,m = 2〜4,与4,4'-二苯基甲烷二异氰酸酯(MDI)反应,得到(CH 2 CH 2)m OH )在其中所得氟化异氰酸酯不溶于其中的溶剂中; 其中含氟醇:MDI的摩尔比为约1:1至约1:2.5。
摘要:
A process for preparing fluorochemical monoisocyanates comprises reacting at least one fluorochemical alcohol represented by the formula CnF2n+1SO2NCH3(CH2)mOH, wherein n=2 to 5, and m=2 to 4, with 4,4′-diphenylmethane diisocyanate (MDI) in a solvent in which the resulting fluorochemical monoisocyanate is not soluble; wherein the molar ratio of fluorochemical alcohol:MDI is from about 1:1 to about 1:2.5.
摘要翻译:一种制备含氟化合物单异氰酸酯的方法包括使至少一种由式C n 2 N 2n + 1 SO 2 NCH 3表示的含氟化合物醇反应, 其中n = 2〜5,m = 2〜4,与4,4'-二苯基甲烷二异氰酸酯(MDI)反应,得到(CH 2 CH 2)m OH )在其中所得氟化异氰酸酯不溶于其中的溶剂中; 其中含氟醇:MDI的摩尔比为约1:1至约1:2.5。
摘要:
The present invention relates to fluorochemical polyurethane compounds, a method for their preparation, a method of application, and compositions comprising that fluorochemical polyurethane compound. The compound and the composition comprising that compound are suitable to impart durable oil- and water-repellency to substrates.
摘要:
In one aspect, the invention provides a water-based release coating composition comprising a mixture of (A.) from about 5 to about 100 wt % of a polymer comprising the reaction product of (a.) from 1 to about 15 wt % of a fluorinated monomer selected from the group consisting of monomers according to the general formula: RfX—OC(O)—C(R)═CH2, wherein Rf represents a perfluorinated aliphatic group having 3 or 4 carbon atoms, X is an organic divalent linking group, and R represents a hydrogen or methyl group, (b.) from about 40 to about 70 wt % of an alkyl (meth)acrylate, wherein the alkyl group contains from 16 to 22 carbon atoms, (c.) from about 3 to about 20 wt % of (meth)acrylic acid, (d.) from about 20 to about 40 wt % acrylonitrile, and (e.) from 0 to about 15 wt % of vinyl monomer, other than acrylonitrile, wherein the sum of (a.) through (e.) equals 100%; and (B.) from 0 to about 95 wt % of an extender polymer, wherein the sum of (A.) and (B.) is 100% and wt % is based on the total amount of solids in the composition.
摘要翻译:在一个方面,本发明提供一种水性剥离涂料组合物,其包含(A)约5至约100重量%的聚合物的混合物,所述聚合物包含(a。)的反应产物,所述反应产物为(a。)1至约15重量% 选自以下通式的单体的氟化单体:<?in-line-formula description =“In-line Formulas”end =“lead”?> R X X-OC (O)-C(R)-CH 2,<βin-line-formula description =“In-line Formulas”end =“tail”?>其中R 1 f SUB >表示具有3或4个碳原子的全氟化脂族基团,X是有机二价连接基团,R表示氢或甲基,(b。)约40至约70重量%的(甲基)丙烯酸烷基酯, 其中烷基含有16至22个碳原子,(c)约3至约20重量%的(甲基)丙烯酸,(d。)约20至约40重量%的丙烯腈,(e) 0至约15重量%的乙烯基单体,除丙烯腈之外,其中( a。)通过(e。)等于100%; 和(B.)0至约95重量%的增量聚合物,其中(A.)和(B.)的总和为100%,wt%基于组合物中固体的总量。
摘要:
A low refractive index composition that forms a low refractive index layer on an optical display is formed having a co-crosslinked interpenetrating polymer network of a fluoropolymer phase and an acrylate phase. The fluoropolymer phase is preferably formed from fluoropolymers based on THV or FKM and having either a degree of unsaturation and/or containing a reactive cure site monomer in its polymer backbone. The acrylate phase includes a multifunctional acrylate crosslinker, and more preferably includes a perfluoropolyether acrylate crosslinker. The formed low refractive index layer has improved interfacial adhesion to other layers or substrates contained in the optical display. Further, the mechanical strength and scratch resistance of the either of above low refractive index compositions can be further enhanced through the incorporation of surface functionalized inorganic particle into the formed layer.
摘要:
A low refractive index composition that forms a low refractive index layer on an optical display is formed having a co-crosslinked interpenetrating polymer network of a fluoropolymer phase and an acrylate phase. The fluoropolymer phase is preferably formed from fluoropolymers based on THV or FKM and having either a degree of unsaturation and/or containing a reactive cure site monomer in its polymer backbone. The acrylate phase includes a multifunctional acrylate crosslinker, and more preferably includes a perfluoropolyether acrylate crosslinker. The formed low refractive index layer has improved interfacial adhesion to other layers or substrates contained in the optical display. Further, the mechanical strength and scratch resistance of the either of above low refractive index compositions can be further enhanced through the incorporation of surface functionalized inorganic particle into the formed layer.
摘要:
An adhesive article comprising a fluorothermoplastic film having a major surface; and a pressure sensitive adhesive layer adhered to at least a portion of the first major surface, wherein the pressure sensitive adhesive comprises a silicone polyurea block copolymer and an MQ tackifying resin. Composite articles preparable from the adhesive articles, and methods of making the same are also disclosed.
摘要:
Systems and methods for utilizing affinity groups to allocate data items and computing resources are disclosed. Upon receipt of a user preference indicating an affinity group, a token associated with that affinity group may be stored in a database. The affinity group may be associated with a geographic region or a number of data centers. Data items and computing resources may be associated with the affinity group. These data items and computing resources may be allocated to a geographic region or data center based on their association with the affinity group. These data items and computing resources may also be reallocated based on efficiency analyses or user preferences. In this way, data items and computing resources may be efficiently allocated with lower user effort.