摘要:
Described are microfiber articles and methods and intermediates for their production, the microfiber articles being preferably produced from co-extruded multi-layer films, and the articles having a multi-layer construction that allows selection of the different layers to have different properties such that the article can have a desired combination of properties.
摘要:
The present invention relates to culturing cells utilizing a matrix of microfibrillated thermoplastic polymeric materials. More specifically, the present invention relates to a method of culturing cells. In addition, the invention relates to a microfibrillated article for culturing cells dispersed in a cell culture medium. The matrix of thermoplastic polymeric materials for culturing cells of this invention finds use in tissue engineering and wound healing applications.
摘要:
The present invention relates to culturing cells utilizing a matrix of microfibrillated thermoplastic polymeric materials. More specifically, the present invention relates to a method of culturing cells. In addition, the invention relates to a microfibrillated article for culturing cells dispersed in a cell culture medium. The matrix of thermoplastic polymeric materials for culturing cells of this invention finds use in tissue engineering and wound healing applications.
摘要:
An apparatus and method for applying a protective material to the girth weld of pipe. The apparatus is particularly suited for protecting a pipe that, except for the ends adjacent to the weld, is protected by layer of a semi-interpenetrating polymer network of epoxy and polyolefin resins. Using the apparatus and method, the protective material is firmly bonded to both the exposed steel end and the pre-existing protective layer.
摘要:
The present invention relates to a multilayer structure comprising at least a first layer which predominantly comprises polypropylene and at least a second layer which is adjacent to the first layer and which predominantly comprises polyethylene having a density less than 0.935 g/cm3, the multilayer structure being characterized by having improved adhesion between the first and second layers. The improved adhesion is obtained by incorporating at least 5% by weight of a polyethylene resin having a density of 0.940 g/cm3 or greater into the first layer, the second layer or both layers.
摘要翻译:本发明涉及一种多层结构,其至少包括主要包含聚丙烯的第一层和至少第二层,其与第一层相邻并且主要包含密度小于0.935g / cm 3的聚乙烯,多层结构是 其特征在于具有改善的第一和第二层之间的粘合性。 通过将至少5重量%的密度为0.940g / cm 3或更大的聚乙烯树脂掺入第一层,第二层或两层中来获得改进的粘合性。
摘要:
A method for joining sections of coated pipe comprises providing two sections of metal pipe, each section of metal pipe having at least a first polymeric coating on its outer surface. The first polymeric coating comprises a first polymer coating selected from the group consisting of a first epoxy/olefin interpenetrating polymer network (IPN) layer, a thermoplastic layer, and a thermosetting layer. The sections of metal pipe are aligned end-to-end and bonded together to form a desired closure. A second polymeric coating comprising a layer of epoxy/olefin semi- or full-IPN is applied to the closure and to any desired additional area of coated pipe to form a seam and to secure the joint. A method for patching a damaged coated pipe using a patch comprising a polyolefin/epoxy semi-or full IPN is also disclosed. A kit comprises a semi-IPN and/or full-IPN repair stick, sheet-like patch, melt, or powder, which is useful to repair damage to a polymer coated metal pipe or to girth weld together ends of two sections of a polymer coated metal pipe.
摘要:
The present invention relates to a filler material useful for communication cables, such as electrical cables and optical cables. In one embodiment, (a) from about 50 to 95 percent by weight mineral oil; (b) less than about 10 percent by weight block copolymer selected from the group consisting of styrene-ethylene/butylene, styrene-ethylene/propylene, styrene-butadiene-styrene, styrene-isoprene-styrene, styrene-ethylene/butylene-styrene, styrene-ethylene/propylene-styrene, and combinations thereof; (c) less than about 35 percent by weight petroleum wax; (d) less than about 20 percent by weight hollow glass microspheres; and (e) less than about 10 percent by weight thixotropic agent selected from the group consisting of clay, colloidal metal oxide, fumed metal oxide, and combinations thereof.
摘要:
A coated article and method therefor comprises a metal substrate comprising a layered coating composition on at least one surface thereof, the coating composition comprising a layer of epoxy on one or more of the surfaces of the substrate. The coating composition further comprises an overcoat layer comprising a combination of polyolefin and epoxy resins, the overcoat layer optionally being free of added epoxy curative. The article can be a pipe, vessel, conduit, rod, profile-shaped article, or tube. A preferred overcoat layer comprises a semi- or full-epoxy/polyolefin interpenetrating polymer network (IPN). In another embodiment, the coated article comprises a polyolefin/epoxy layer that is directly coated on at least one surface of a metal substrate, the polyolefin/epoxy coating being overcoated with a thermoplastic top coating, the coated article being free of added adhesive. The metal article preferably is a pipe, vessel, conduit, rod, profile shaped article or tube.
摘要:
Disclosed is a multi-layer insulated wire comprising a conductor and one or more insulating layers covering the conductor, wherein the one or more insulating layers are prepared from a composition comprising: (A) 100 parts by weight of a thermoplastic polyester-series resin, and (B) from 1 to 70 parts by weight of an ethylene-series polymer having epoxy and acrylate groups. Also disclosed are a process for preparing the multi-layer insulated wire and electronic devices, such as transformers, comprising the multi-layer insulated wire.