Patent classifications
C08J3/24
THERMOSETTING COMPOSITION CONTAINING STYRENE-BUTADIENE-STYRENE BLOCK POLYMER, AND METHOD FOR CURING SAME
The present application provides a method for producing a cured product that includes: (I) heating a thermosetting composition containing a styrene-butadiene-styrene block copolymer (SBS) (A) and a thermal radical generator (B) within a temperature range of 120° C. to 180° C. until 30% or more of double bonds derived from 1,2-bond structure in a butadiene block react; and (II) then heating the thermosetting composition within a temperature range of 181° C. to 300° C. until 50% or more of the double bonds derived from 1,2-bond structure in a butadiene block react.
COATINGS CONTAINING BRANCHED POLYESTER POLYOLS AS PLASTICIZERS
Described herein is a coating composition including (A) a physically curing, reactively self-curing and/or externally curing component, including, based on a total solids content of component (A), from 0.1% by weight to about 2.5% by weight of a branched polyester polyol, preparable by: (a) reacting a polyol including at least three hydroxyl groups with an aliphatic dicarboxylic acid having from 6 to 36 carbon atoms or an esterifiable derivative of the aliphatic dicarboxylic acid to form a hydroxyl-functional first intermediate product; (b) reacting the first intermediate product with a cyclic carboxylic acid anhydride to form a carboxylic acid-functional second intermediate product; and (c) reacting the second intermediate product with an epoxide-functional compound having one epoxide group to form the branched polyester polyol; and (B) a crosslinking component in case component (A) includes one or more externally curing components; and optionally (C), a diluent component.
LIGHT GOLD
The present invention relates to novel composite materials comprising elemental gold in the form of single crystals, amyloid fibrils and a polymer. This composite material is similar to glassy plastics yet lighter than aluminum and has a golden shining similar to 18K gold. Due to its unique properties, this composite is termed “light gold”. This composite material suits, for example, watches, jewelry, radiation shielding, catalysis and electronics. The invention further provides for environmentally friendly methods to manufacture such composite materials.
Polymer-sand nanocomposite lost circulation material
A method of forming a barrier to overcome lost circulation in a subterranean formation. The method includes injecting a polymer-sand nanocomposite into one or more lost circulation zones in the subterranean formation where the polymer-sand nanocomposite is formed from sand mixed with a polymer hydrogel. Further, the polymer hydrogel includes a hydrogel polymer, an organic cross-linker, and a salt. The sand additionally comprises a surface modification. The associated method of preparing a polymer-sand nanocomposite lost circulation material for utilization in forming the barrier is provided.
Preparation method of super absorbent polymer
The present disclosure relates to a preparation method of a super absorbent polymer containing a novel cross-linking agent compound. The preparation method of a super absorbent polymer of the present disclosure can provide a super absorbent polymer exhibiting excellent absorption properties and an excellent deodorizing effect by including a cross-linking agent with a novel structure. Therefore, according to the present disclosure, since a separate additive for a deodorizing property is not required, processability and economic efficiency of the manufacturing process can be improved.
Insertion of catalyst into dry carbon fibers prior to resin impregnation
Systems and methods are provided for fabrication of enhanced carbon fiber laminates that utilize encapsulated catalyst. One embodiment is a method that includes acquiring a batch of dry fibers, and acquiring a batch of catalyst capsules that each comprise catalyst that accelerates polymerization of monomers of a resin, and a shell that encapsulates the catalyst and liquefies at a curing temperature. The method further includes interspersing the catalyst capsules among the dry fibers, and impregnating the fibers with the resin after interspersing the catalyst capsules with the fibers.
MASTERBATCH BASED ON A MODIFIED POLYMER AND AN ORGANOPHOSPHORUS ADDITIVE, AND METHOD FOR MANUFACTURING SAME
A process for manufacturing a masterbatch comprises the following steps: (a) bringing at least one initial polymer comprising at least one carbon-carbon unsaturation into contact with at least one 1,3-dipolar grafting agent bearing at least one nitrile oxide dipole in the presence of at least one organophosphorus additive selected from the group consisting of phosphoric acid triesters, phosphonates, phosphinates, phosphine oxides and the mixtures of these compounds, and (b) recovering the masterbatch obtained in the preceding step. The masterbatch and compositions containing it and also tires comprising such compositions are also disclosed.
ADSORBENT RESIN FOR REMOVING PERFLUORINATED POLLUTANTS FROM BODY OF WATER, PREPARATION THEREFOR, AND USE THEREOF
The present invention relates to an adsorbent resin for removing perfluorinated pollutants from a body of water, a preparation therefor and the use thereof. The objective is to solve the problem of traditional adsorbent materials, such as active carbon materials, having a poor effect in terms of removing perfluorooctanoic acid from water, being non-renewable, etc. In the present method, styrene and divinylbenzene are used as framework materials, a suitable pore-forming agent and a suitable dispersant are selected in order to prepare a macroporous resin with a moderate pore size, and an alkylation reaction is carried out at a low hindrance with p-xylylene dichloride (XDC) being used as a post-crosslinking agent, whereby a rigid benzene ring structure is introduced into the resin by means of post-crosslinking, thereby further increasing the hydrophobicity of the resin and increasing the crosslinking degree thereof; in addition, the micropore structure is adjusted in order to obtain an adsorbent resin with a narrow particle size distribution, a uniform pore size and a high specific surface area. The size of micropores in the resin is close to the molecular size of perfluorooctanoates in water, the adsorbate sieving capacity is strong, and the adsorption rate of perfluorinated compounds can be further improved.
ADSORBENT RESIN FOR REMOVING PERFLUORINATED POLLUTANTS FROM BODY OF WATER, PREPARATION THEREFOR, AND USE THEREOF
The present invention relates to an adsorbent resin for removing perfluorinated pollutants from a body of water, a preparation therefor and the use thereof. The objective is to solve the problem of traditional adsorbent materials, such as active carbon materials, having a poor effect in terms of removing perfluorooctanoic acid from water, being non-renewable, etc. In the present method, styrene and divinylbenzene are used as framework materials, a suitable pore-forming agent and a suitable dispersant are selected in order to prepare a macroporous resin with a moderate pore size, and an alkylation reaction is carried out at a low hindrance with p-xylylene dichloride (XDC) being used as a post-crosslinking agent, whereby a rigid benzene ring structure is introduced into the resin by means of post-crosslinking, thereby further increasing the hydrophobicity of the resin and increasing the crosslinking degree thereof; in addition, the micropore structure is adjusted in order to obtain an adsorbent resin with a narrow particle size distribution, a uniform pore size and a high specific surface area. The size of micropores in the resin is close to the molecular size of perfluorooctanoates in water, the adsorbate sieving capacity is strong, and the adsorption rate of perfluorinated compounds can be further improved.
POLYMER COMPOSITIONS AND BIOSURFACES COMPRISING THEM ON SENSORS
Polymer compositions comprising, inter alia, at least two hydrophilic polymers and a crosslinking reagent, biosurfaces comprising such polymer compositions, and methods of creating such biosurfaces by disposing such polymer compositions on sensor surfaces are provided. Sensor surfaces coated with such polymer compositions and biosurfaces are amenable, inter alia, to use in methods and devices for detecting, measuring, and/or quantifying one or more analytes in one or more query samples.