摘要:
This invention relates to a graft copolymer comprising: a) a macromonomer, wherein the macromonomer comprises in polymerized form a first monoethylenically unsaturated monomer selected from a group consisting of esters of methacrylic acid and acrylic acid with straight or branched alcohols having 1 to 3 carbon atoms and no more than 5 mole % an addition fragmentation chain transfer agent; and b) at least one side chain on the macromonomer, wherein the at least one side chain comprises at least 95 wt.-% of acrylic acid in polymerized form, and its use for improving the dirt pick-up resistance of a paint or coating.
摘要:
Polymer composite photonic crystal materials are disclosed as coatings and topcoats which have high reflection (>30%) in a specific range of the electromagnetic spectrum, such as ultraviolet (
摘要:
Provided herein are the polymers shown below. The value n is a positive integer. R1 is an organic group, and each R2 is H or a chemisorbed group, with at least one R2 being a chemisorbed group. The polymer may be a nanostructured film. Also provided herein is a method of: converting a di-p-xylylene paracyclophane dimer to a reactive vapor of monomers; depositing the reactive vapor onto a substrate held at an angle relative to the vapor flux to form nanostructured poly(p-xylylene) film; reacting the film with an agent to form hydrogen atoms that are reactive with a precursor of a chemisorbed group, if the film does not contain the hydrogen atoms; and reacting the hydrogen atoms with the precursor. Also provided herein is a device having a nanostructured poly(p-xylylene) film on a pivotable substrate. The film has directional hydrophobic or oleophobic properties and directional adhesive properties.
摘要:
An allergen reducing agent is provided that contains a terpenoid polymer or copolymer as an active component, and that functions to reduce allergens such as mites and pollen, and is capable of suppressing coloring.
摘要:
The invention relates to a curable liquid resin composition which exhibits excellent curability, can be applied at high speed, and produces a cured product having a Young's modulus appropriate for the upjacket layer and excellent coating removal properties of the upjacket layer. The curable liquid resin composition according to the invention comprises: (A) a urethane (meth)acrylate, (B) a reactive diluent, (C) a polymerization initiator, and (D) particles with a number average particle size of 0.1-100 μm.
摘要:
Novel organosiloxane compositions which contain (methyl)styrene groups and can be prepared on the basis ofA) oligomeric or polymeric organosilicon compounds comprising at least one unit of the formulaGR.sub.c SiO.sub.(4-c-1)/2 (I)or at least one unit of the formula (I) and at least one unit of the formulaO.sub.(4-c-1)/2) R.sub.c Si--G.sup.1 --R.sub.c SiO.sub.(4-c-1)/2(II)B) monomeric alkenyloxy compounds, maleates, fumarates, maleimides, (meth)acrylates, (methyl)styrenes, acrylamides, itaconic esters and/or oligomeric or polymeric organosilicon compounds containing on average more than one alkenyloxy, maleate, fumarate, maleimide or (meth)acrylate group, where R are identical or different hydrocarbon radicals which may be halogenated or unhalogenated or a radical of the formula--R.sup.1 --[OCH.sub.2 CH.sub.2 ].sub.o --[OCH(CH.sub.3)CH.sub.2 ].sub.p --[O(CH.sub.2).sub.4 ].sub.q --OR.sup.2,whereR.sup.1 is a linear or branched alkylene radical,R.sup.2 is a hydrogen atom, an alkyl radical or a radical of the formula --CO--R.sup.3, where R.sup.3 is an alkyl radical,G is a radical of the formula (IV) --R.sup.4 -(phenyl) which is substituted by [--Y.sub.(5-d) ] and (--R.sup.5.sub.d), with the proviso that at least one radical R.sup.5 is present andG.sup.1 is a radical of the formula (V) --(phenyl)-(R.sup.4).sub.d -- which is substituted by [--Y.sub.4-d ], whereR.sup.4 is a linear or branched, substituted or unsubstituted alkylene radical,R.sup.5 is a vinyl radical or isopropenyl radical,Y can be identical or different and each Y is a hydrogen atom or is as defined for R, or is a radical of the formula --OR.sup.6, whereR.sup.6 is a C.sub.1-8 alkyl radical optionally interrupted by an ether oxygen atom, andc is 0, 1 or 2, on average from 0.0 to 2.0,d is 1, 2 or 3,o is 0 or an integer from 1 to 100,p is 0 or an integer from 1 to 100, andq is 0 or an integer from 1 to 100, with the proviso that the sum o+p+q is >0.
摘要:
The invention pertains to an aerobically curing composition comprising free-radical polymerizable compounds, an activator system, and optionally conventional additives, characterized in that said composition contains as said free-radical polymerizable compounds at least one polyurethane (meth)acrylate one or more (meth)acrylate comonomers; wherein said composition contains from 20 to 80% by weight of said polyurethane (meth)acrylate and from 80 to 20% by weight of said (meth)acrylate comonomer(s), based on the total of polymerizable compounds, and said activator system is a hydrazone activator system, as well as the preparation and use of said composition.
摘要:
To obtain water-based paint compositions which have outstanding storage stability and can also form paint films with outstanding appearance and water resistance.Water-based paint composition containing a hardener at 50-10 parts by weight to 50-90 parts by weight (solids) of an aqueous dispersion obtained by polymerizing an aqueous dispersion of a polyurethane resin of a number-average molecular weight of 1000-50,000, an acid value from carboxyl groups of .ltoreq.50 mg KOH/g, a sulfonate group content of 0.05-0.6 mol/1000 g, an allyl content of 0.1-1.1 mol/molecule and an acetate tolerance of .gtoreq.5 in the aqueous dispersion with ethylenic unsaturated monomers in a proportion as a weight ratio of polyurethane resin/ethylenic unsaturated monomer of 5/95-60/40.
摘要:
A liquid crystal light composite in which discrete volumes of a liquid crystal material are dispersed in a matrix material is produced by a process in which a reactive additive formulation is added and photopolymerized. The reactive additive formulation includes mono- and multifunctional compounds in specified proportions and a photoinitiator. The reactive additive formulation reduces the operating field and may also improve other electro-optical properties.
摘要:
A waterbased dispersion useful for forming aqueous coating composition containing dispersed pigment, an aqueous carrier and a branched polymer dispersant (binder); the branched polymer has a weight average molecular weight of about 5,000-100,000 and contains 20-80% by weight of a hydrophilic backbone and correspondingly 80-20% by weight of macromonomer side chains; wherein the backbone is of polymerized ethylenically unsaturated monomers and 2-30% by weight, based on the weight of the backbone of polymerized ethylenically unsaturated monomers having an acid-functional group; and wherein at least 10% of the acid-functional groups are neutralized with an amine or an inorganic base and is hydrophilic in comparison to the side chains; the side chains are of macromonomers of polymerized ethylenically unsaturated monomers that are polymerized into the backbone via an ethylenically unsaturated group and the macromonomers have a weight average molecular weight of about 1,000-30,000 and wherein the weight ratio of pigment to binder is about 1/100-200/100.