摘要:
Thermoplastic compositions include: (a) from about 1 wt % to about 99 wt % of at least one crystalline polyester; (b) from about 1 wt % to about 99 wt % of a polycarbonate copolymer; (c) from about 10 wt % to about 50 wt % of a reinforcing filler; and (d) from about 1 wt % to about 10 wt % of a laser direct structuring (LDS) additive. In particular aspects the at least one crystalline polyester includes polybutylene terephthalate (PBT) and the polycarbonate copolymer includes a polycarbonate-siloxane (PC—Si) copolymer. In further aspects the at least one reinforcing filler includes glass fiber, and in specific aspects a flat glass fiber. The composition has improved adhesion, surface appearance and/or warpage properties as compared to a comparative composition that does not include the polycarbonate copolymer.
摘要:
Flame retardant thermoplastic compositions that are capable of being used in a laser direct structuring process. The compositions include a thermoplastic resin, a laser direct structuring additive, and a flame retardant. The compositions offer flame retardant characteristics while also substantially maintaining the mechanical properties of the base thermoplastic resin, such as the impact strength and/or HDT of the composition. The compositions can be used in a variety of applications such as personal computers, notebook and portable computers, cell phone and other such communications equipment.
摘要:
The invention relates to a sliding bearing element (1) comprising a polymer layer (4), the polymer layer (4) having solid lubricant particles and metal oxide particles and as a polymer, exclusively a polyimide polymer or a polyamide imide polymer. The metal oxide particles are selected from the group comprising bismuth vanadate, chromium-antimony-rutile and mixtures therefrom.
摘要:
The present invention provides for a composition comprising a pigment, wherein the composition is suitable for coating a surface that is, or is expected to be, exposed to the sun. The pigment comprises particles that fluoresce in sunlight, thereby remaining cooler in the sun than coatings pigmented with non-fluorescent particles. The particles comprise solids that fluoresce or glow in the visible or near infrared (NIR) spectra, or that fluoresce when doped. Suitable dopants include, but are not limited to, ions of rare earths and transition metals. A coating composition includes: (i) a film-forming resin; (ii) an infrared reflective pigment; and (iii) an infrared fluorescent pigment different from the infrared reflective pigment. When the coating composition is cured to form a coating and exposed to radiation comprising fluorescence-exciting radiation, the coating has a greater effective solar reflectance (ESR) compared to the same coating exposed to the radiation comprising fluorescence-exciting radiation except without the infrared fluorescent pigment. A multi-layer coating including the coating composition, and a substrate at least partially coated with the coating composition is also disclosed. A method of reducing temperature of an article includes applying the coating composition to at least a portion of the article.
摘要:
The present invention is a polymer composition comprising a hydrogenated crystalline cycloolefin ring-opening polymer (A) that comprises a repeating unit derived from a polycyclic norbornene-based monomer that includes three or more rings, 5 to 100 parts by weight of a glass filler (B) based on 100 parts by weight of the hydrogenated crystalline cycloolefin ring-opening polymer (A), and 5 to 20 parts of a metal oxide (C) based on 100 parts by weight of the hydrogenated crystalline cycloolefin ring-opening polymer (A), and a formed article. The polymer composition according to the present invention exhibits excellent electrical properties (low dielectric loss tangent), excellent adhesion to plating, and excellent reflow heat resistance, and can maintain strength even when subjected to high-temperature/high-humidity conditions.
摘要:
A method for producing a laser-structurable component, wherein an extruded single- or multilayer molded part with at least one laser-structurable layer that forms an exposed surface of the molded part is applied onto the surface of a non-laser-structurable support element. Alternatively, the at least one laser-structurable layer may be back-molded with a non-laser-structurable thermoplastic support element so that at least one laser-structurable layer of the molded part forms at least one part of the surface of the laser-structurable component. The extruded single- or multilayer molded part is deep-drawn into the component. In the process, the laser-structurable layer of the molded part consists of a thermoplastic molding compound consisting of: (A) 30-99.9 wt. % of a thermoplastic consisting of polyamide; (B) 0.1-10 wt. % of an LDS additive; and (C) 0-60 wt. % of an additive material which is different from (A) and (B).
摘要:
A polymer composition that comprises an aromatic polyester, a laser activatable additive, and a mineral filler is provided. The mineral filler has a median size of about 35 micrometers or less and the laser activatable additive has a mean size of about 1000 nanometers or less.
摘要:
A green pigment is a blend of metal oxides including a [124] spinel which can contain certain combinations of lithium, sodium, cobalt, zinc, calcium, magnesium, copper, titanium, manganese, tin, and germanium, and a [134] spinel which can contain certain combinations of lithium, sodium, chromium, boron, iron, manganese aluminum, titanium, tin and germanium. The pigment lacks nickel.
摘要:
Phosphoric acid ester as dispersing agents in binding agent free-pigment preparations. The invention relates to aqueous, binding agent free-pigment preparations, containing (A) 1.0-75.0 wt.-% of at least one organic or inorganic white or coloured pigment or a mixture of different organic and inorganic white or coloured pigments, (B) 0.01 to 8.0 wt. % of at least one phosphoric acid ester of formula (IV), wherein R represents a linear or cross-branched, saturated or unsaturated C8 to C18− aliphatic hydrocarbon group, M represents a hydrogen atom or a sodium, potassium or ammonium ion, n is an integer of between 0-20 and m is an integer of between 0-20, (C) 0.01-12.0 wt.-% of a non-ionic surfactant which is a fatty acid ethanol amide ethoxylate of formula (V), wherein a represents an integer of between 3-50, and R1 represents C7−-C21− alkyl or -alkenyl and (G) water.
摘要:
The subject matter of the invention relates to aqueous pigment preparations containing (A) 30 to 75% by weight of at least one inorganic white or colored pigment or a mixture of different inorganic white or colored pigments, (B) 0.01 to 15% by weight of at least one fatty acid ethanol amide ethoxylate of the formula (I), in which R1 is a linear or branched alkyl radical or alkenyl radical with 7 to 21 carbon atoms, and n is a whole number from 2 to 40, (C) 0.01 to 5% by weight of at least one amine of the formula (II), in which R2 is a linear or branched alkyl radical or alkenyl radical with 8 to 22 carbon atoms, identical to or different from R1, A represents an iminopropyl group —NH—CH2—CH2—CH2—, an oxyethyl group —O—CH2—CH2— or an oxypropyl group —O—CH2—CH(CH3)—CH2—, and a is a whole number from 0 to 5, wherein the compound of the formula (II); can be present in the form of an ammonium salt, and (E) water.