9 results about "Polymer blend" patented technology

A flame retarded resin molding composition with weatherable properties comprises a polyester and polycarbonate blend modified with an organopolysiloxane polycarbonate and an acrylic impact modifier for enhancing weatherablity.

A process for forming a nano-composite including mixing a first and second thermoplastic polymer in a molten state forming a molten polymer blend. The second polymer is soluble in a first solvent and the first polymer is insoluble in the first solvent. The first polymer forms discontinuous regions in the second polymer. Next, the polymer blend is subjected to extensional flow, shear stress, and heat forming nanofibers where less than about 30% by volume of the nanofibers are bonded to other nanofibers.

Next the polymer blend with nanofibers is cooled and the first intermediate is formed into a pre-consolidation formation. The pre-consolidation formation is then consolidated causing nanofiber movement, randomization, and at least 70% by volume of the nanofibers to fuse to other nanofibers. According to one aspect, the second intermediate is then subjected to the first solvent to the dissolving away at least a portion of the second polymer.

The present invention relates to a new process of synthesizing conductive polymers from monomers substituted with amine group. The process provides simple synthesizing steps for the conductive polymers without using other additives such as stabilizers or emulsifiers. The conductive polymers synthesized according to the present invention have highly enhanced solubility in common organic solvents and electrical conductivity compared to conventional conductive polymers. Therefore, the conductive polymers synthesized according to the present process can be utilized in applications that require high electrical conductivity, for example an electromagnetic interference shield or a transparent electrode of thin film, as well as in specific applications such as various conductive films, fibers, polymer blends, battery electrodes or conductive etch mask layers.

The invention discloses a flame-retardant polybutylene terephthalate (PBT) composite material, which is prepared by taking a mixture of montmorillonite and polytetrafluoroethylene as an organic synergistic flame retardant and cooperating with a nitrogen containing flame retardant, and a preparation method thereof. The composite material comprises the following components in percentage by weight: 45-70 percent of polybutylene terephthalate, 1-10 percent of nano-sized organic montmorillonite and 10-30 percent of glass fiber which is subjected to surface treatment, and 10-30 percent of nitrogen containing flame retardant, wherein the nano-sized organic montmorillonite is montmorillonite mineral powder processed by an alkyl intercalating agent; and the glass fiber is alkali-free glass fiber processed by a coupling agent. The preparation method comprises the following steps of mixing the components, antioxidant and lubricating agent; melting, blending and extruding the mixture by a double-screw extruder to obtain the polybutylene terephthalate composite material which has high performance and is synergistically filled by montmorillonite and glass fiber. The composite material is high in modulus, good in toughness, high in temperature resistance and high in CTI value; the processing environment is friendly; the composite material are free of halogen and phosphorus, meets an ROSH (The Restriction of the use of Certain Hazardous Substances in Electrical and Electronic Equipment) principle, and is widely applied to the field of engineering plastics.

A hollow molded article is obtained by molding a thermoplastic polyester composition comprising a blend of reinforcing fiber glass, polybutylene terephthalate with a melting point of 210 to 230° C. and polyethylene terephthalate with a melting point of 240 to 260° C., wherein at least 10% of the outer surface of the article has a continuous glossy region with a gloss of at least 75 gloss units, as measured at 60 degrees in accordance with ASTM D523 and wherein the gloss varies from the average less than 10 gloss units in the glossy region. A gas-assisted injection molding process is also disclosed for making such hollow molded articles, which articles can have various uses, including handles for appliances or the like.

Thermoplastic articles are molded from thermoplastic polyurethane compounds including blends of aliphatic poly-caprolactone thermoplastic polyurethane and aromatic thermoplastic polyurethane selected from aromatic polyester thermoplastic polyurethane, aromatic polyether thermoplastic polyurethane, and combinations thereof. The thermoplastic articles exhibit enhanced stain resistance, as represented by achieving a rating of 2 or better according to Blue Jean Abrasion Test, relative to thermoplastic articles molded from thermoplastic polyurethane compounds including either aromatic polyester thermoplastic polyurethane or aromatic polyether thermoplastic only, while also having good clarity (i.e., low haze) and other desirable properties. The thermoplastic articles can be especially useful as protective cases for handheld electronic devices.

The invention relates to the technical field of polyamide films, in particular to a high-shrinkage biaxially oriented polyamide film as well as a preparation method and application thereof. The high-shrinkage biaxially oriented polyamide film comprises a first surface layer, a core layer and a second surface layer, the first surface layer comprises nylon, a nylon composition A and an anti-sticking nylon master batch; the core layer comprises nylon, a nylon composition B and a nylon secondary material; the second surface layer comprises nylon, a nylon composition A and an anti-sticking nylon master batch; the nylon composition A and the nylon composition B are blends of bio-based nylon and copolymerized nylon. The high-shrinkage biaxially oriented polyamide film provided by the invention has the property of high shrinkage rate under the condition of meeting high tensile strength and excellent puncture resistance, is suitable for packaging products with high shrinkage rate requirements, and has a wide application prospect.