摘要:
Deep-drawn membranes formed of polyester or polycarbonate films, comprising units of Formula (I) and (II), useful for acoustic signal converters as microphones and speakers. The film can be produced by thermoplastic processes or solvent cast processes. Especially suitable for the production of small membranes with a diameter of up to 10 cm useful in mobile devices as microphones, mobile telephones, laptops, personal digital assistants (PDAs), headphones or as signal transmitters
摘要:
Adhesive assembly tape for interior finishing, comprising a carrier and an adhesive coated from the melt to at least one side of said carrier,characterized in that the adhesive comprises an ethylene-propylene rubber having a density of between 0.86 and 0.89 g/cm3 and a tackifier resin.
摘要翻译:用于内部精加工的粘合剂装配带,包括载体和从熔体涂覆到所述载体的至少一侧的粘合剂,其特征在于,所述粘合剂包括密度为0.86至0.89g / cm 3的乙丙橡胶和 增粘树脂。
摘要:
Films and membranes produced therefrom for acoustic signal converters made of polyester comprising the structural unit of formula (I) wherein R1 and R2 independently represent hydrogen, halogen, C1-C8 alkyl, C5-C6 cycloalkyl, C6-C10 aryl, C7-C12 aralkyl and R3 corresponds to a carbonyl group or to the formula (A)
摘要:
Pressure-sensitive adhesive comprising a crosslinkable polyolefin and at least one tackifier resin, wherein the polyolefin is composed of at least two monomers A and B and of at least one comonomer C amenable to crosslinking, the monomers A and B being selected from the group consisting of α-olefins, vinyl acetate, n-butyl acrylate and methyl methacrylate or, in the case of EPDM, a diene such as 5-ethylidene-2-norbornene, dicyclopentadiene or 5-vinyl-2-norbornene.
摘要:
The invention relates to a film, in particular for an adhesive tape, characterized in that the film contains at least one homopolymer, copolymer, or terpolymer of the propylene and fibers and is monoaxially stretched in the longitudinal direction, wherein the elongation ratio is preferably at least 1:8 and particularly preferably at least 1:9.5.
摘要:
Halogen-free wrapping foil comprising a polyolefin and magnesium hydroxide, characterized in that the magnesium hydroxide has an optionally irregularly spherical shape and the thickness of the wrapping foil is 30 to 200 μm and in particular 50 to 130 μm.
摘要:
A self-adhesive surface protective film, particularly for automobile paint surfaces, having a backing layer and a self-adhesive layer based on a crosslinked polyurethane, characterized in that the loss angle tan δ of the polyurethane at room temperature in the frequency interval from 10−1 to 102 rad/sec rises or remains at the same level.
摘要:
Process for preparing a pressure-sensitive adhesive composition, characterized in that tackifiers in dispersed, melted or solid form are mixed with natural rubber latex, the water content being not more than 45% by weight.
摘要:
Use of an organopolysiloxane/polyurea block copolymer according to formula (1), where R is a univalent hydrocarbon radical with 1 to 20 carbon atoms, optionally substituted by fluorine or chlorine, X is an alkylene radical with 1 to 20 carbon atoms in which methylene units that are not adjacent to one another can be replaced by —O— groups, or is an arylene radical en with 6 to 22 carbon atoms, A is an oxygen atom or an —NR′— amino group, R′ is water or an alkyl radical with 1 to 10 carbon atoms, Y is a bivalent hydrocarbon radical with 1 to 20 carbon atoms, optionally substituted by fluorine or chlorine, B and B′ are a reactive or non-reactive end group that is bonded covalently to the polymer, n is a number from 1 to 4000 and a is a number starting from at least 10, as a coating on a pre-treated plastic surface, the polar surface energy fraction thereof being at least twice that of the untreated plastic surface.