The present invention provides nanomaterials for the specific targeting of immune cells. Methods of treating cardiac disease and inflammatory disease are also described.

Elastomeric terpolymer with a high sulfur content comprising:sulfur in a quantity higher than or equal to 40% by weight, preferably ranging from 55% by weight to 90% by weight, with respect to the total weight of said elastomeric terpolymer;a first monomer selected from aromatic vinyl compounds, preferably from styrene, divinylbenzene, vinyl toluene, tert-butylstyrene, p-methylstyrene, -methylstyrene, -methylstyrene, vinylnaphthalene;a second monomer selected from:aromatic vinyl compounds, preferably from styrene, divinylbenzene, vinyl toluene, tert-butylstyrene, p-methylstyrene, -methylstyrene, -methylstyrene, vinyl-naphthalene;monomers having general formula (I): CH.sub.2CH(CH.sub.2).sub.y(X).sub.n(X).sub.m(CH.sub.2).sub.xCHCH.sub.2, wherein:X represents a sulfur atom, a selenium atom, a tellurium atom, preferably a sulfur atom, a selenium atom;y and x, equal to or different from one another, are a whole number ranging from 0 to 4;n and m, equal to or different from one another, are a whole number ranging from 0 to 3, at least one of n and m being equal to 1; said first monomer and said second monomer being present in a quantity lower than or equal to 60% by weight, preferably ranging from 10% by weight to 45% by weight, with respect to the total weight of said elastomeric terpolymer; said first monomer and said second monomer being different from one another. Said elastomeric terpolymer with a high sulfur content may be advantageously used in various applications such as, for example, thermal insulation, conveyor belts, transmission belts, flexible hoses and, in particular, in elastomeric compositions for tyres.

Elastomeric terpolymer with a high sulfur content comprising:sulfur in a quantity higher than or equal to 40% by weight, preferably ranging from 55% by weight to 90% by weight, with respect to the total weight of said elastomeric terpolymer;a first monomer selected from aromatic vinyl compounds, preferably from styrene, divinylbenzene, vinyl toluene, tert-butylstyrene, p-methylstyrene, -methylstyrene, -methylstyrene, vinylnaphthalene;a second monomer selected from:aromatic vinyl compounds, preferably from styrene, divinylbenzene, vinyl toluene, tert-butylstyrene, p-methylstyrene, -methylstyrene, -methylstyrene, vinyl-naphthalene;monomers having general formula (I): CH.sub.2CH(CH.sub.2).sub.y(X).sub.n(X).sub.m(CH.sub.2).sub.xCHCH.sub.2, wherein:X represents a sulfur atom, a selenium atom, a tellurium atom, preferably a sulfur atom, a selenium atom;y and x, equal to or different from one another, are a whole number ranging from 0 to 4;n and m, equal to or different from one another, are a whole number ranging from 0 to 3, at least one of n and m being equal to 1; said first monomer and said second monomer being present in a quantity lower than or equal to 60% by weight, preferably ranging from 10% by weight to 45% by weight, with respect to the total weight of said elastomeric terpolymer; said first monomer and said second monomer being different from one another. Said elastomeric terpolymer with a high sulfur content may be advantageously used in various applications such as, for example, thermal insulation, conveyor belts, transmission belts, flexible hoses and, in particular, in elastomeric compositions for tyres.

The present invention relates to a method of preparing a polyphenylene sulfide and a high-viscosity polyphenylene sulfide prepared using the method. In this method, the ratio of an organic phase to an aqueous phase is controlled by controlling dehydration conditions, so that high viscosity may be realized without adversely affecting a reaction or physical properties during preparation of the polyphenylene sulfide.

The present invention relates to a method of preparing a polyphenylene sulfide and a high-viscosity polyphenylene sulfide prepared using the method. In this method, the ratio of an organic phase to an aqueous phase is controlled by controlling dehydration conditions, so that high viscosity may be realized without adversely affecting a reaction or physical properties during preparation of the polyphenylene sulfide.

Sulfur copolymers having high sulfur content for use as raw materials in 3D printing. The sulfur copolymers are prepared by melting and copolymerizing one or more comonomers with cyclic selenium sulfide, elemental sulfur, elemental selenium, or a combination thereof. Optical substrates, such as films and lenses, are constructed from the sulfur copolymer via 3D printing and are substantially transparent in the visible and infrared spectrum. The optical substrates can have refractive indices of about 1.75-2.6 at a wavelength in a range of about 500 nm to about 8 m.

An aliphatic epoxy-terminated polysulfide polymer has the formula RCHOHCH2-SR(Sy-R)t-SCH2-CHOHR and is formed by a process, where each R is independently chosen from branched alkanediyl or branched arenediyl groups and groups with the structure (CH2)a-O(CH2)b-O(CH2)c- and about 0 to about 20% of the number of R-groups are branched alkanediyl or branched arenediyl groups and about 80 to about 100% of the number of R-groups have the structure (CH2)a-O(CH2)b-O(CH2)c-, where t is from about 1 to about 60, y is an average value of from about 1.0 to about 2.5, b is an integer value of from about 1 to about 8, and a and c are independently integers from about 1 to about 10, and where each R is independently a particular radical where, m, n, o, p, q and r independently have a value of from about 1 to about 10.

An aliphatic epoxy-terminated polysulfide polymer has the formula RCHOHCH2-SR(Sy-R)t-SCH2-CHOHR and is formed by a process, where each R is independently chosen from branched alkanediyl or branched arenediyl groups and groups with the structure (CH2)a-O(CH2)b-O(CH2)c- and about 0 to about 20% of the number of R-groups are branched alkanediyl or branched arenediyl groups and about 80 to about 100% of the number of R-groups have the structure (CH2)a-O(CH2)b-O(CH2)c-, where t is from about 1 to about 60, y is an average value of from about 1.0 to about 2.5, b is an integer value of from about 1 to about 8, and a and c are independently integers from about 1 to about 10, and where each R is independently a particular radical where, m, n, o, p, q and r independently have a value of from about 1 to about 10.

A chemically amplified positive-type photosensitive resin composition capable of suppressing the occurrence of footing in which the width of the bottom (the side proximal to the surface of a support) becomes narrower than the top (the side proximal to the surface of a resist layer) in the nonresist portion when a resist pattern serving as a template for a plated article is formed on a metal surface of a substrate having a metal surface using the composition. A mercapto compound having the formula (C) shown below is added to the composition and includes an acid generator which generates acid upon exposure to an irradiated active ray or radiation and a resin the solubility of which in alkali increases under the action of acid: ##STR00001##
wherein n1, n2, R.sup.c1, and R.sup.c are defined in claim 1.

A chemically amplified positive-type photosensitive resin composition capable of suppressing the occurrence of footing in which the width of the bottom (the side proximal to the surface of a support) becomes narrower than the top (the side proximal to the surface of a resist layer) in the nonresist portion when a resist pattern serving as a template for a plated article is formed on a metal surface of a substrate having a metal surface using the composition. A mercapto compound having the formula (C) shown below is added to the composition and includes an acid generator which generates acid upon exposure to an irradiated active ray or radiation and a resin the solubility of which in alkali increases under the action of acid: ##STR00001##
wherein n1, n2, R.sup.c1, and R.sup.c are defined in claim 1.