摘要:
A tackifier composition comprising at least one thermoplastic hydrocarbon resin and an antioxidant composition is provided; wherein a portion of the volatile organic compounds in the thermoplastic hydrocarbon resin has been removed; wherein the antioxidant composition comprises at least one primary antioxidant and at least one secondary antioxidant; and wherein the levels of individual volatile organic compound monitored in the tackifier composition are less than about 0.5 ppm as measured by GC/MS headspace analysis. Processes for producing the tackifier composition are also provided as well as adhesives comprising the tackifier compositions.
摘要:
The present invention relates to a composition comprising one or more (co)polymers and one or more phosphonite compounds that contain cardanol moieties. Moreover, the present invention also refers to the use of the phosphonite compounds as process stabilizers, in particular refers to the use of such compounds for stabilizing and/or reducing the Yellowness Index of a (co)polymer composition exposed to heat and/or mechanical stress.
摘要:
The present invention relates to a thermoplastic polyurethane composition and use thereof. The thermoplastic polyurethane composition comprises a polyurethane prepared from a polyester polyol and a polyisocyanate as well as an antioxidant. The thermoplastic polyurethane composition of the present invention can be used with other thermoplastic polymers in melt spinning process to prepare bicomponent fibers.
摘要:
The invention relates to a flame-retardant, polyamide composition containing: as component A) 1 to 96 wt. % of one or more thermoplastic polyamides; as component B) 2 to 25 wt. % of a dialkylphosphinic acid salt of formula (I), where R1 and R2 are the same or different and represent linear, branched or cyclical C1-C18 alkyl, C6-C18 aryl, C7-C18 aryl alkyl and/or C7-C18 alkylaryl; M represents Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K and/or a protonated nitrogen base; m is 1 to 4; n is 1 to 4; as component C) 1 to 20 wt. % of a salt of phosphoric acid; as component D) 1 to 20 wt. % of one or more condensation products of melamine; as component E) 0 to 50 wt. % of a filler and/or reinforcing agent; as component F) 0 to 2 wt. % of a phosphite or phosphonite or mixtures thereof; and as component G) 0 to 2 wt. % of an ester or salt of long-chained aliphatic carboxylic acids (fatty acids) which typically have chain lengths of C14 to C40, the sum of the components always amounting to 100 wt. %. The invention also relates to the use of said composition.
摘要:
The present invention relates to polyketone molding compounds based on partially crystalline, aliphatic polyketones. In particular, it relates to halogen-free, flameproof molding compounds based on aliphatic polyketones which preferably comprise salts of phosphinic acids as flame retardant. The molding compounds fulfill the fire protection classification V0 according to UL94 and display good mechanical properties. These molding compounds are suitable for the production of in particular thin-walled molded articles for the electrical and electronics industry, such as for example housings, housing components or connectors.
摘要:
A process for making a phosphorus-containing compound is disclosed. The process comprises contacting a compound of formula (A) wherein RA and RB are selected from optionally substituted aryl, aryloxy, alkyl and alkoxy groups or can be combined to form cyclic structures; and RC is methyl, ethyl, isopropyl, n-butyl, i-butyl, t-butyl, phenyl or benzyl; and a compound of formula (B) wherein R1-R4 are selected from optionally substituted aryl, aryloxy, alkyl and alkoxy groups. The phosphorus-containing compound can then be used as a flame retardants for polymers, especially for epoxy, polyurethane, thermosetting resins and thermoplastic polymers. Such flame retardant-containing polymers can be used to make protective coating formulations and ignition-resistant fabricated articles, such as electrical laminates, polyurethane foams, and various molded and/or foamed thermoplastic products.
摘要:
A thermoplastic composition includes a poly(carbonate-arylate ester); and an organophosphorus compound in an amount effective to provide 0.1 to 1.0 wt % phosphorus based on the total weight of the composition, wherein an article molded from the composition has a smoke density after four minutes (Ds-4) of less than or equal to 300 determined according to ISO 5659-2 on a 3 mm thick plaque and a maximum average rate of heat release emission (MAHRE) of less than or equal to 90 kW/m2 determined according to ISO 5660-1 on a 3 mm thick plaque.
摘要:
Disclosed herein are processes for preparing articles from compositions including a cross-linked polycarbonate. The cross-linked polycarbonate may be derived from a polycarbonate having about 0.5 mol % to about 5 mol % endcap groups derived from a monohydroxybenzophenone. The article is molded, then exposed to UV radiation. A plaque including the composition can achieve a UL94 5VA rating.
摘要:
The invention relates to a Process for the preparation of a composition comprising (A) a heterophasic propylene copolymer, (B) talc and (C) a phenolic antioxidant and/or a processing stabilizer, wherein the heterophasic propylene copolymer consists of (a) a propylene-based matrix, wherein the propylene-based matrix consists of a propylene homopolymer and/or a propylene-α-olefin copolymer consisting of at least 70 wt % of propylene and up to 30 wt % of ethylene, based on the total weight of the propylene-based matrix, wherein the propylene-based matrix is present in an amount of 60 to 95 wt % based on the total heterophasic propylene copolymer and (b) a dispersed ethylene-α-olefin copolymer, wherein the dispersed ethylene-α-olefin copolymer is present in an amount of 40 to 5 wt % based on the total heterophasic propylene copolymer and wherein the sum of the total amount of propylene-based matrix and total amount of the dispersed ethylene-α-olefin copolymer in the heterophasic propylene copolymer is 100 wt %, wherein at least part of the talc is surface-modified and wherein the amount of talc in the composition is from about 0.5 to at most 5 wt % based on the heterophasic propylene copolymer, comprising the step of melt-mixing component (A), component (B) and component (C).
摘要:
Disclosed herein are compositions including a cross-linked polycarbonate. The cross-linked polycarbonate may be derived from a polycarbonate having about 0.5 mol % to about 5 mol % endcap groups derived from a monohydroxybenzophenone. A plaque including the composition can achieve a UL94 5VA rating. Also disclosed herein are articles including the compositions, methods of using the compositions, and processes for preparing the compositions.