523 results about "Alkyl radicals" patented technology

Disclosed are compositions useful in a wide variety of applications, including heat transfer fluids which possess a highly desirable and unexpectedly superior combination of properties, and heat transfer systems and methods based on these fluids. The preferred heat transfer fluid comprises from about 1 to about 40 percent, on a weight basis, of carbon dioxide (CO₂) and from about 99 to about 60 percent, on a weight basis, of a compound having the Formula I XCF_zR_3-z (I), where X is a C₂ or a C₃ unsaturated, substituted or unsubstituted, alkyl radical, each R is independently Cl, F, Br, I or H, and z is 1 to 3. A preferred compound of Formula I is tetrafluoropropene, particularly 1,1,1,3-tetrafluoropropene and/or 1,1,1,3-tetrafluoropropene.

The invention relates to polymers with antimicrobial properties, consisting of: a) 99-40 wt % non functional vinylically polymerizable monomers and b) 1-60 wt % functional vinylically polymerizable monomers of general formula (I) wherein V=vinyl, (meth)acroyl, allyl or styryl, A=a possibly available linking unit, which can be alkyl, aryl, arylalkyl or hydroxy alkyl, which can also be interrupted by hetero atoms, e.g. by hetero atoms in urethane, carbonate, ester, amide or ether groups, wherein y=0 or is 1, Hsp=a hydrophilic spacer of general formula (i) -(O-CH2-CH2)r- and/or (ii) -(O-CH2-CH(CH3))s with r=0-40, s=0-40 and r+s=2-40, also m=1.2 or 3 and R1=CH3, ethyl or benzyl, R2=an alkyl radical with 8-20 C-atoms, wherein t=1, 2 or 3 and X-=Cl-, Br-, I- or alkyl sulphate.

The present invention discloses intercalates formed by contacting a layered material, e.g., a phyllosilicate, with an intercalant monomer surface modifier including an alkyl radical having at least 6 carbon atoms and a polymerizable monomer, oligomer or polymer. The intercalant monomer surface modifier converts the interlayer region of the layered materials from hydrophilic to hydrophobic, therefore, polymerizable monomers, oligomers or polymers can be easily intercalated into the interlayer spacing. The co-presence of the intercalant monomer surface modifier and polymerizable monomer, oligomer or polymer provide an environment for more polymerizable monomers, oligomers or polymers to be intercalated into the interlayer spacing and the intercalates are readily exfoliated into polymer matrices to form nanocomposites. The nanocomposites (e.g., epoxy-clay) prepared from the intercalates demonstrated enhanced mechanical, thermal and chemical resistance compared with pristine polymer matrices.

Fumaric acid amides of the general formula (I)

wherein R¹ represents OR³ or a D- or L-amino acid radical —NH—CHR⁴—COOH bonded via an amide bond, wherein R³ is hydrogen, a straight-chained or branched, optionally substituted C_1-24 alkyl radical, a phenyl radical or C_6-10 aralkyl radical and R⁴ is a side chain of a natural or synthetic amino acid and R² represents a D- or L-amino acid radical —NH—CHR⁵—COOH bonded via an amide bond or a peptide radical comprising 2 to 100 amino acids bonded via an amide bond, wherein R⁵ is a side chain of a natural or synthetic amino acid, are used for preparing a drug (1) for the therapy of an autoimmune disease; (2) for use in transplantation medicine; (3) for the therapy of mitochondrial diseases; or (4) for the therapy of NF-kappaB mediated diseases.

The invention relates to a process for producing mouldings by injection moulding, the steps in the process being A) Melting a mixture made from a) a (meth)acrylate copolymer composed of from 40 to 100% by weight of free-radical-polymerized C1-C4-alkyl esters of acrylic or methacrylic acid and from 0 to 60% by weight of (meth)acrylate monomers having an anionic group in the alkyl radical, where the copolymer comprises b) from 0.1 to 3% by weight of a release agent, and, where appropriate, the mixture may comprise c) from 0 to 50% by weight of a drier, d) from 0 to 30% by weight of a plasticizer, e) from 0 to 100% by weight of additives or auxiliaries, f) from 0 to 100% by weight of an active pharmaceutical ingredient, g) from 0 to 20% by weight of another polymer or copolymer, where the amounts given for components b) to g) are based on the (meth)acrylate copolymer a) and the mixture prior to melting has a content of more than 0.5% by weight of low-boiling constituents with vapour pressure of at least 1.9 bar at 120° C., B) Devolatilizing the mixture in the thermoplastic state at temperatures of at least 120° C., thereby lowering to not more than 0.5% by weight the content of the low-boiling constituents with vapour pressure of at least 1.9 bar at 120° C., C) Injecting the molten and devolatilized mixture into the mould cavity of an injection mould, the temperature of the mould cavity being below the glass transition temperature of the (meth)acrylate copolymer by at least 10° C., cooling the molten mixture, and removing the resultant moulding from the mould.

Disclosed are compositions useful in a wide variety of applications, including heat transfer fluids which possess a highly desirable and unexpectedly superior combination of properties, and heat transfer systems and methods based on these fluids. The preferred heat transfer fluid comprises from about 1 to about 40 percent, on a weight basis, of carbon dioxide (CO₂) and from about 99 to about 60 percent, on a weight basis, of a compound having the Formula I XCF_zR_3-z (I), where X is a C₂ or a C₃ unsaturated, substituted or unsubstituted, alkyl radical, each R is independently Cl, F, Br, I or H, and z is 1 to 3. A preferred compound of Formula I is tetrafluoropropene, particularly 1,1,1,3-tetrafluoropropene.

The invention relates to a process for preparing crosslinkable polymers containing silane groups having at least one hydrolyzable radical by free-radical-initiated grafting of the base polymers with an olefinically unsaturated silane having at least one hydrolyzable radical, wherein the grafting is carried out in the presence of(a) an alkylsilane of the formula I, whereR1 is a monovalent hydrocarbon radical having from 1 to 33 carbon atoms or a divalent hydrocarbon radical having from 4 to 24 carbon atoms,R2 is a hydrocarbon radical having from 1 to 10 carbon atoms,X are identical or different hydrolyzable radicals,n is 0, 1 or 2 andm is 1 or 2 and/or(b) a fluoroalkylsilane of the formula whereR3 is a fluoroalkyl radical,R4 is an alkyl radical andX is a hydrolyzable radical,x is an integer from 1 to 3,y is 0, 1 or 2 andz is an integer from 1 to 3, with the proviso that the sum x+y+z=4.

A transparent electrode that includes a first layer that is interposed between a substrate (e.g., of inorganic glass) and a second layer, is described. The first layer includes a conductive polymer (e.g., a polythiophene), and the second layer includes at least one polymeric anion and at least one of a polyanaline, a substituted polyaniline and a polythiophene represented by the following general formula (I),

in which A may be a C₁-C₅ alkylene radical, R may be a linear or branched C₁-C₁₈ alkyl radical, and x is 0 to 8, provided that when x is greater than 1, each R may be the same or different. Also described is a method of preparing the transparent electrode, and articles of manufacture (e.g., an electroluminescent array) that include the transparent electrode of the present invention.

Intercalates formed by contacting a layered material, e.g., a phyllosilicate, with an intercalant surface modifier selected from the group consisting of a compound having an alkyl radical containing at least 6 carbon atoms, a compound containing an aromatic ring, and mixtures thereof, said surface modifier including a matrix material-reactive functional group, to sorb or intercalate the intercalant surface modifier between adjacent platelets of the layered material. Sufficient intercalant surface modifier is sorbed between adjacent platelets to expand the adjacent platelets to at least about 10 ANGSTROM , up to about 100 ANGSTROM . The intercalated complex can be combined with an organic liquid into a viscous carrier material, for delivery of the carrier material, or for delivery of an active compound; or the intercalated complex can be combined with a matrix polymer to form a strong, filled polymer matrix.

The invention relates to a multilayer dosage form comprised of: a) a neutral core; b) an inner coating consisting of a methacrylate copolymer; c) an outer coating consisting of a copolymer of which 40 to 95% by weight is composed of radically polymerized C₁ to C₄ alkyl esters of acrylic acid or of methacrylic acid and of which 5 to 60% by weight is composed of (meth)acrylate monomers having an anionic group in the alkyl radical. The invention is characterized in that the inner coating is essentially comprised of a methacrylate copolymer, of which at least up to 90% by weight consists of (meth)acrylate monomers with neutral radicals, which, in accordance with DIN 53 787, has a minimum film formation temperature of no higher than 30° C., and which contains the pharmaceutical active substance in bound form.

The present invention provides a biologically active combination for agricultural applications, comprising A) at least one biocidal, agriculturally acceptable active compound and B) a bioactivator for the active substance according to A) and C) if appropriate, customary auxiliaries and additives, which comprises the use, as bioactivator B), at least one compound of the formula (I)

R—C(O)NH—(CH₂)_a—N⁺(R¹,R²)—(CH₂)_b—COO—  (I)

in which R is a hydrocarbon radical having 6 to 22 carbon atoms, preferably 8 to 18 and in particular 10 to 14 carbon atoms, which is optionally branched and/or contains multiple bonds and/or functional groups,

• [0001]
  • R¹, R² independently of one another are C_1-4-alkyl radicals, in particular —CH₃, a is 1 to 5, preferably 2 or 3, b is 1 or 2, in an effective concentration.

The present invention relates to polymeric binders of formula: [(—CH₂CF₂—)_x′(—CF₂CF₂—)_y′[—CH₂CH(R)—]_z′]_m wherein: x′+y′+z′=1, only one x′, y′ or z′ could be simultaneously equal to zero; R is an alkyl radical C_nH_2n+1— with 0≦n≦8, 10≦m≦10⁶.

The present invention relates to the use of a compound of formula I wherein R2 is R-NH wherein R is a branched or unbranched alkyl radical, a piperidinyl group or pyrrolidinyl group, each of which may be optionally substituted by one or more -OH, halogen, amino or hydroxyalkyl groups; R6 is phenylamino, benzylamino or pyridyl-methylamino, indan-5-amino, where in each case the aryl group may be unsubstituted or substituted by one or more -OR'', halogen, NO2, amino or COOR' groups, wherein R' and R'' are each independently H or a branched or unbranched alkyl group; and R9 is a branched or unbranched alkyl group or a cycloalkyl group; in the treatment of an autoimmune disorder. The invention further relates to a method of treating an autoimmune disorder comprising administering to a subject in need thereof a therapeutically effective amount of a compound of formula I.

The invention discloses a touch-sensitive display panel, a composition for forming a sealant and the sealant. The touch-sensitive display panel comprises a first base panel, a second base plate, a touch-sensitive structure, a display medium and the sealant, wherein the touch-sensitive structure and the display medium are sealed between the first base panel and the second base panel by the sealant; and the sealant is formed by the polyreaction of the composition. The composition comprises the components by weight percent: 20 to 50% of bisphenol A epoxy acrylate monomer, 2 to 8% of acrylic acid monomer, 0.5 to 5% of light initiating agent and 1 to 5% of hardening agent. The chemical formula of the acrylic acid monomer is showed in the formula 1, wherein R1 is hydrogen or an alkyl radical with 1 to 3 carbon atoms and R2 is hydrogen or an alkyl radical with 1 to 20 carbon atoms.

The present invention relates to compositions containing polyether-siloxane copolymers which are based on branched SiH-functional siloxanes, where at least one of the polyether-siloxane copolymers has a radical —OR8 where R8=hydrogen or an alkyl radical having from 1 to 10 carbon atoms which is bound to a silicon atom, a process for producing polyurethane foam in which these compositions are used as foam stabilizers, polyurethane foams containing these compositions and the use of these polyurethane foams.

Electrolyte capacitors containing certain polythiophenes are described. More particularly, the polythiophenes have backbones containing repeating units of the following general formula (I) and/or repeating units of the following general formula (II),

wherein A is, for example, a C₁-C₅-alkylene radical, R is, for example, a C₁-C₁₈-alkyl radical, and x is an integer from 0 to 8. Also described are dispersions comprising such polythiophenes, and the use of such polythiophenes or dispersions thereof for producing conductive layers.