Patent classifications
C08J2477/00
Anti-corrosion nanocomposite coating
An anti-corrosion coating and a method for fabricating the anti-corrosion coating is disclosed. The coating includes a polymer, a curing agent, and quantum dots. The method includes adding carbon quantum dots to a polymer coating as a nanofiller to enhance the corrosion resistance properties of the polymer coating. The coating is configured to provide improved anti-corrosion properties at a lower cost.
Silicone hydrogels comprising high levels of polyamides
Described are silicone hydrogels with high levels of polyamides exhibiting an excellent balance of physical, mechanical, and biological properties. The silicone hydrogels are formed from a reactive monomer mixture comprising: a hydroxylalkyl (meth)acrylate monomer; hydroxyl-containing silicone components; and a polyamide, wherein the polyamide is present in an amount greater than 15 weight percent, based on the total weight of reactive components in the reactive monomer mixture.
POLYESTER-BASED RESIN COMPOSITION AND PRODUCTION PROCESS THEREFOR, MOLDED OBJECT AND PRODUCTION PROCESS THEREFOR, AND MASTERBATCH
Provided is a polyester-based resin composition capable of giving a molded article excellent in transparency and gas-barrier property even though the molded article requires stretching treatment, and also provided is a method for producing the composition. The method for producing a polyester-based resin composition includes a step of obtaining a master batch (M) containing a polyester resin (A) having a cyclic acetal structure or an alicyclic hydrocarbon structure, and a polyamide resin (B), and a step of melt-kneading the master batch (M) with a polyester resin (R) in which 70 mol % or more of the dicarboxylic acid unit is derived from an aromatic dicarboxylic acid and 70 mol % or more of the diol unit is derived from an aliphatic diol, thereby giving a polyester-based resin composition, in this order,. The glass transition temperature of the polyester resin (A) is 105 C. or lower, the content of the polyester resin (A) in the polyester-based resin composition is 0.5 to 15.0% by mass, and the content of the polyamide resin (B) is 0.5 to 10.0% by mass.
BIODEGRADABLE TEXTILES, MASTERBATCHES, AND METHOD OF MAKING BIODEGRADABLE FIBERS
A masterbatch is disclosed, along with associated methods, and biodegradable filaments, fibers, yarns and fabrics. The masterbatch includes 0.2 to 5 mass % CaCO.sub.3, an aliphatic polyester with a repeat unit having from two to six carbons in the chain between ester groups, with the proviso that the 2 to 6 carbons in the chain do not include side chain carbons, and a carrier polymer selected from the group consisting of PET, nylon, other thermoplastic polymers, and combinations thereof.
Matrix resins toughened with hybrid polyamide particles
Pre-impregnated composite material (prepreg) that can be cured/molded to form aerospace composite parts. The prepreg includes carbon reinforcing fibers and an uncured resin matrix. The resin matrix includes an epoxy component, polyethersulfone as a toughening agent, and a curing agent. The resin matrix is also composed of a thermoplastic particle component that includes hybrid polyamide particles wherein each hybrid particle contains a mixture of amorphous and semi-crystalline polyamide.
POLYMER COMPOSITION, FOAM AND METHOD THEREOF
The present invention provides a polymer composition for manufacturing a foam, the polymer composition comprising a vinyl aromatic based copolymer and a processing aid, wherein the amount of the processing aid in the total weight of the polymer composition is equal to or more than 5 wt % and equal to or less than 75 wt %; and the polymer composition does not comprise ethylene-vinyl acetate copolymer, ethylene-butyl acrylate copolymer, ethylene--olefin copolymer, homopolymer and copolymer of polyethylene, homopolymer and copolymer of polypropylene, homopolymer and copolymer of polybutene and olefin-based ionic polymer. The present invention also provides the foam and the method for forming the same.
Thermoplastic prepreg intermediate material for fuel cell separation plate and method for manufacturing thermoplastic prepreg for fuel cell separation plate by using same
An intermediate material of a thermoplastic prepreg for a fuel cell separation plate comprises a hydrophobic thermoplastic resin film and a fiber base. The hydrophobic thermoplastic resin film has a degree of crystallization of 1 to 20%, a thickness of 3 to 50 m, and (iii) a content of an electroconductive material of 1 to 20 wt. %. The film is laminated on at least one surface of the fiber base. The thermoplastic prepreg for a fuel cell separation plate is manufactured by pressurizing the thermoplastic prepreg intermediate material at a temperature higher than the melting point of the hydrophobic thermoplastic resin film. A fuel cell separation membrane manufactured using the thermoplastic prepreg intermediate material and thermoplastic prepreg is thin and light-weight, and have a good durability.
Biodegradable textiles, masterbatches, and method of making biodegradable fibers
A masterbatch is disclosed, along with associated methods, and biodegradable filaments, fibers, yarns and fabrics. The masterbatch includes 0.2 to 5 mass % CaCO.sub.3, an aliphatic polyester with a repeat unit having from two to six carbons in the chain between ester groups, with the proviso that the 2 to 6 carbons in the chain do not include side chain carbons, and a carrier polymer selected from the group consisting of PET, nylon, other thermoplastic polymers, and combinations thereof.
Epoxy resin composition, prepreg, carbon fiber-reinforced composite material, and manufacturing methods therefor
The present invention provides an epoxy resin composition comprising at least the following component [A], component [B] and component [C], the epoxy resin composition being characterized in that: the mixture of component [A] and component [B] is a mixture that, when temperature is increased at 2 C./min, begins to thicken at temperature (T1) and completes thickening at temperature (T2), temperature (T1) being 80-110 C. and temperature (T1) and temperature (T2) satisfying the relationship of expression (1) 5 C.(T2T1)20 C. expression (1); and the mixture of component [A] and component [C] is a mixture that, when temperature is increased at 2 C./min, begins to cure at temperature (T3), temperature (T1) and temperature (T3) satisfying the relationship of expression (2) 5 C.(T3T1)80 C. expression (2). Component [A]: epoxy resin Component [B]: thickening particle Component [C]: curing agent.
SYSTEMS, DEVICES, AND METHODS FOR PROMOTING IN SITU POLYMERIZATION WITHIN NANOMATERIAL ASSEMBLIES
The present disclosure is directed to synthesizing a nanomaterial-polymer composite via in situ interfacial polymerization. A nanomaterial is exposed to a solution having a first solute dissolved in an aqueous solvent to uniformly, or substantially uniformly, distribute the solvent throughout the porosity of the network of the nanomaterial. The nanomaterial is then exposed to a second solution having a second solute dissolved in an organic solvent, which is substantially immiscible with the first solvent, with the first solute reacting with the second solute. The first and second solutions can be stirred, or otherwise moved with respect to each other, to facilitate transport of the second solution throughout the nanomaterial to promote reaction of the polymer within the nanomaterial to produce a polymer composite having uniform morphology.