Odor neutralizing composition

Abstract

The present invention relates to a composition comprising: a) plastic materials and other substances; b) an odor neutralizer comprising calcium silicate hydrate; c) a polysaccharide; and d) an adhesion promoter.

Description

[Technical Field]

[0001] The present invention relates to a composition containing an odor neutralizing agent, a method for preparing the composition, and the use of the odor neutralizing agent. [Background technology]

[0002] Setting aside haptics, odor is an essential factor influencing the success of consumer products. For example, if the plastic materials or components in an automobile interior have a subjectively unpleasant odor, it can negatively impact purchasing decisions. Furthermore, many plastic products must meet stringent requirements regarding chemical emissions. Therefore, minimizing the emission of odors from plastics is a matter of concern for plastics processors and compounders.

[0003] There are many causes of odor. In many cases, the odor is not caused by the plastic itself, but by residual low-molecular-weight substances that remain after the plastic is prepared. Additives mixed into the plastic during manufacturing, such as processing aids, stabilizers, fibers, or fillers, can also cause unpleasant odors. Furthermore, the manufacturing and further processing of plastic-containing materials can also generate substances that produce unpleasant odors, for example, as a result of thermal decomposition.

[0004] The risk of odor emissions increases further when recycled plastics or mixtures of recycled and new materials are used as starting materials, rather than using only newly manufactured plastic materials. Recycled plastic materials from used waste contain odor-causing substances, which are often not completely removed during processing. Packaging waste often contains typical metabolites of microorganisms that produce cheese-like and excrement-like odors.

[0005] Many attempts have been made to reduce the odor of plastic parts. For example, International Publication No. 2017 / 060171 describes the use of inorganic additives, particularly silicate materials. Diatomaceous earth and calcium silicate are explicitly mentioned.

[0006] There is a need for further options for reducing plastic odors, which in some embodiments may be superior to known options. [Overview of the project]

[0007] The object of this invention is to provide corresponding methods and products.

[0008] This objective is achieved by a composition comprising a material consisting of plastic and further components, and an odor neutralizer containing calcium silicate hydrate. [Modes for carrying out the invention]

[0009] In principle, all types of plastics can be used as the aforementioned plastics. Particularly suitable plastics include polyolefins, especially polyethylene and its copolymers and modified forms, polypropylene and its copolymers, polybutyne, polyisobutylene, polymethylpentene, and cycloolefin copolymers, poly(vinyl chloride) and poly(vinyl chloride) modified forms, styrene homopolymers and styrene copolymers, polyacrylates, especially polyacrylonitrile and its copolymers, and poly(methyl methacrylate) and its copolymers and blends, polyacetal, fluoroplastics, polyamides, thermoplastic polyesters, especially polycarbonate, poly(ethylene terephthalate), poly(butylene terephthalate), polyarylsulfone and polyarylsulfide, polyetherketone, polyimide, and copolyimide, thermosetting polycondensates, especially phenolic resins, and urea / formaldehyde plastics. The following materials are selected from the group consisting of: melamine / formaldehyde plastics, unsaturated polyester resins, alkyd resins, and silicones; thermosetting polyadducts, particularly epoxy resins, polyurethanes, particularly crosslinked polyurethanes, and thermoplastic polyurethane elastomers; elastomer polymers, particularly natural rubber, butadiene rubber, styrene-butadiene rubber, chlorobutadiene rubber, acrylonitrile-butadiene rubber, hydrogenated acrylonitrile-butadiene rubber, ethylene-propylene-diene rubber, butyl rubber, ethylene oxide-epichlorohydrin rubber, acrylate rubber, ethylene acrylate rubber, fluororubber, and perfluororubber; biopolymers, particularly polylactic acid, cellulose and cellulose derivatives, lignin-based thermoplasts, thermosetting materials mainly composed of renewable raw materials, and natural fiber composites, as well as mixtures thereof.

[0010] The compositions according to the present invention always relate to plastics containing further components. The combination of plastic and further components is referred to as a “material.”

[0011] Typical further components include, in particular, fillers, especially mineral fillers, inorganic and organic fibers, plastic additives (lubricants, antiblocking agents, mold release agents, antioxidants, photoprotective agents, heat stabilizers, foam stabilizers, antistatic agents, antifogging additives, slip additives, flame retardants, colorants, effect pigments, fluorescent dyes, laser marking additives, impact modifiers, softeners, adhesion promoters, propellants, nucleating agents, clarifying agents, acid scavengers, antimicrobial additives, antiviral additives, antifungal agents, etc.), contaminants resulting from the manufacture, preparation, further processing and use of materials, and mixtures thereof.

[0012] In a preferred embodiment of the present invention, the plastic, or preferably the material, is composed of recycled plastic, either entirely or partially.

[0013] Recycled plastics can be pure type, pure grade, similar grade, mixed, or contaminated.

[0014] "Pure type" means that only one type of plastic with the same type name from the same raw material manufacturer is processed.

[0015] "Pure grade" means that the plastic is processed from plastics bearing the same name in accordance with DIN EN ISO 11469 or VDA260, but may originate from different manufacturers.

[0016] "Similar grade" plastics refer to plastics that share the same basic polymer processing but possess different properties (e.g., flame retardant additives).

[0017] A "mixture" refers to a product made from various plastics that possess chemical miscibility. These plastics are considered miscible only if they can be uniformly mixed during the melting process and processed into a molded structure with satisfactory mechanical properties and an acceptable surface finish.

[0018] "Contaminated products" means that the plastic to be processed contains other materials that have an adverse effect on the properties of the molded parts manufactured therefrom. Such contaminated plastics mainly originate from household waste and commercial waste.

[0019] Neutralization of odors is achieved by an odor neutralizer containing calcium silicate hydrate.

[0020] Calcium silicate hydrate (CSH) includes both natural minerals and synthetic minerals, such as xonotlite. From a formal perspective, calcium silicate hydrate is a hydrated product of calcium silicate. Calcium silicate hydrate is usually characterized by the molar ratio of CaO to SiO2 (C / S ratio). In this calculation, the water content is not considered for the characterization.

[0021] Preferably, the calcium silicate hydrate is crystalline calcium silicate hydrate.

[0022] Typical known calcium silicate hydrates are

[0023] a) Nesosilicates (orthosilicates with additional anions), such as afwillite, bartonfountaineite, α-C2SH, and reinhardbraunsite,

[0024] b) Sorosilicates, such as dellaite, kiralite, jaffeite, kilchoanite, and C8S5,

[0025] c) Inosilicates (chain silicates), such as tobermorite, clinotobermorite, jennite, xonotlite, foshagite, and hillebrandite,

[0026] d) Mixtures of layered silicates and chain silicates, such as okkenite,

[0027] e) Phyllosilicates (layered silicates), such as cateite, truscottite, K phase and Z phase, and layered silicates having (CO3) groups, such as scottite, fukalite, chelite, and sparlite.

[0028] That is the case.

[0029] 20m 2 / g or more, preferably 30m 2 It was found that calcium silicate hydrate having a BET specific surface area of ​​800 m² / g or more is preferable. Preferably, the BET specific surface area is 800 m². 2 The amount should be less than or equal to / g, preferably 50m 2 It is less than / g.

[0030] Particularly preferred calcium silicate hydrates include xonotlite and tobermorite, as well as mixtures thereof.

[0031] Preferably, the C / S ratio is in the range of 0.6 to 1.4, more preferably in the range of 0.8 to 1.2.

[0032] In a preferred embodiment, the odor neutralizer further comprises a polysaccharide and / or an adhesion promoter.

[0033] Preferably, the polysaccharide has one of the following characteristics.

[0034] a) The polysaccharide has at least a partially helical structure,

[0035] b) The polysaccharide has an average molecular weight of more than 10,000 g / mol, particularly more than 100,000 g / mol, and / or

[0036] c) The polysaccharide is starch, a starch derivative, or a mixture thereof.

[0037] Suitable polysaccharides include, for example, natural tapioca starch, waxy corn starch (both from FH Dietrich & Ludwig Post), nasturtium pea starch (from Georg Breuer), Amylogen 03003 natural starch (from Cargill), Emwaxy 100 and Emfloc KC750 (both from Emsland Stärke), or mixtures thereof.

[0038] Suitable adhesion promoters include, in particular, compounds that are functional silanes. Preferably, each silicon atom of the functional silane has at least one alkoxy group bonded to it. Furthermore, the functional silane may have an amino group, alkyl group, epoxy group, alkoxy group, alkenyl group, alkynyl group, aryl group, fluoroalkyl group, carbonyl group, carboxyl group, hydroxyl group, acrylic group, and / or methacrylic group. Preferred adhesion promoters include tetramethyl orthosilicate (TMOS) or tetraethyl orthosilicate (TEOS), or mixtures thereof.

[0039] Preferably, the odor neutralizing agent is included in an amount suitable for reducing the odor by 0.5 units or more, preferably 1.0 unit or more, and particularly 1.5 units or more, of VDA270.

[0040] A typical composition according to the present invention is:

[0041] a) A material that accounts for 10.0 to 99.9% by weight,

[0042] i) Plastics at 20.0-99.9% by weight,

[0043] ii) Further ingredients in an amount of 0.1 to 80.0% by weight,

[0044] The materials contained,

[0045] b) An odor neutralizing agent comprising 0.1 to 90.0% by weight,

[0046] iii) Calcium silicate hydrate in an amount of 50.0 to 100% by weight.

[0047] iv) Polysaccharides in an amount of 0-50.0% by weight.

[0048] v) Adhesion promoter: 0-10.0% by weight,

[0049] The odor neutralizing agent contained,

[0050] The composition includes such that the sum of the weight percentages of a) and b), the sum of the weight percentages of i) and ii), and the sum of the weight percentages of each of iii) to v) are 100% by weight. The plastic, or preferably the material, is preferably composed of recycled plastic, either entirely or partially.

[0051] Another typical composition according to the present invention is:

[0052] a) A material that accounts for 10.0 to 99.9% by weight,

[0053] i) Plastics at 20.0-99.9% by weight,

[0054] ii) Further ingredients in an amount of 0.1 to 80.0% by weight,

[0055] The materials contained,

[0056] b) An odor neutralizing agent comprising 0.1 to 90.0% by weight,

[0057] iii) Calcium silicate hydrate in an amount of 50.0 to 99.8% by weight.

[0058] iv) Polysaccharides in an amount of 0.1 to 50.0% by weight.

[0059] v) 0.1-10.0% by weight of adhesion promoter,

[0060] The odor neutralizing agent contained and

[0061] The composition contains such that the sum of the weight percentages of a) and b), the sum of the weight percentages of i) and ii), and the sum of the weight percentages of each of iii) to v) are 100% by weight.

[0062] If the composition contains a very large amount of odor neutralizer, it can function as a masterbatch and be mixed with plastic for use.

[0063] In other embodiments, the composition specifies a suitable final product.

[0064] In a typical masterbatch, the material content is 10-50% by weight, and accordingly, the odor neutralizer content is 50-90% by weight.

[0065] The final product typically contains 50-99.9% by weight of the material and 0.1-50% by weight of the odor neutralizer.

[0066] In preferred embodiments, the final product contains 3% or more by weight of an odor neutralizer, or 5% or more by weight of an odor neutralizer, or 10% or more by weight of an odor neutralizer.

[0067] In a preferred embodiment, the adhesion promoter is bonded to calcium silicate hydrate.

[0068] The present invention also relates to a method for producing a composition according to the present invention, comprising the step of melting and mixing an odor neutralizing agent into a molding compound of a material composed of a plastic and other components in an extruder or kneader.

[0069] In a preferred embodiment of the above method, the odor neutralizer components are either directly mixed with the material or uniformly pre-mixed with the material. Preferably, the adhesion promoter is first applied to the calcium silicate hydrate.

[0070] The present invention also relates to the use of an odor neutralizer comprising calcium silicate hydrate for the neutralization of odors in materials comprising plastics, recycled plastics, or mixtures thereof, and in particular, optionally, the odor neutralizer further comprises polysaccharides and / or adhesion promoters.

[0071] The present invention will be further explained by the following examples.

[0072] Mechanical and thermal testing methods for test specimens prepared from materials

[0073] • Tensile modulus E according to DIN EN ISO 527-1 and 527-2 t

[0074] • Charpy impact strength (without notch) according to DIN EN ISO 179-1 and 179-2 a cU

[0075] • Load deflection temperature T according to DIN EN ISO 75-1 and 75-2, Method B (bending stress 0.45 MPa) ff 0.45

[0076] Odor test using test specimens prepared from materials

[0077] Odor characteristics testing was conducted by 3 to 6 trained subjects according to VDA270variantB4. Each subject evaluated the odor according to the following scale.

[0078] 1 = Odor cannot be detected

[0079] 2 = The odor can be detected, but it is not unpleasant.

[0080] 3 = The odor is clearly noticeable, but not unpleasant.

[0081] 4 = The odor is unpleasant.

[0082] 5 = The odor is very unpleasant.

[0083] 6 = The odor is intolerable

[0084] Materials used

[0085] Calcium silicate hydrate having the following properties:

[0086] · Zonotlite

[0087] · C / S ratio = 1:1

[0088] · Bulk density (DIN EN ISO 787-10): 0.14 g / cm 3

[0089] · Specific surface area (DIN ISO 9277): 38 m 2 / g

[0090] · Density (DIN EN ISO 787-10): 2.62 g / ml

[0091] · Loss on ignition at 1000 °C (DIN EN ISO 3262-1): 6%

[0092] Polysaccharides

[0093] Four types of starch with different weight ratios of amylose and amylopectin as follows:

[0094] a) Amylose 20%, amylopectin 80%

[0095] b) Amylose 55%, amylopectin 45%

[0096] c) Amylose 70%, amylopectin 30%

[0097] d) Amylose 1%, amylopectin 99%

[0098] Adhesion promoter

[0099] Tetraethyl orthosilicate (TEOS)

[0100] plastic

[0101] SYSTALEN 13404 gr 002-PP (Recycled polypropylene from Grüne Punkt)

[0102] Melt flow index (DIN EN ISO 1133): 12g / 10min at 230℃ / 2.16kg

[0103] Experimental Procedure

[0104] Preparation of odor neutralizers from calcium silicate hydrate and polysaccharides and / or adhesion promoters:

[0105] Two kilograms of calcium silicate hydrate were placed in a laboratory Henschel mixer (10 L capacity) and mixed with the respective amounts of adhesion promoter and / or polysaccharide. The weight ratios can be seen in Examples 2-8 of Table 1. The two-component or three-component mixture was processed at 2000 rpm and a shell temperature of 90°C until the compound temperature reached 80°C.

[0106] Preparation of odor neutralizing agents and compounds from plastics

[0107] The plastic and odor neutralizer were melted and mixed in a twin-screw extruder (Coperion ZSK18) according to the following conditions.

[0108] Temperature zones 1-7 = 200°C-220°C

[0109] • Nozzle temperature = 230℃

[0110] • Screw rotation speed = 600 rpm

[0111] ·Mass flow rate=10kg / h

[0112] The resulting compound strands were cooled by passing them through a water bath and cut into pellets. The odor neutralizer was weighed by gravimetric measurement through a side feeder and added to the molten plastic. The weight ratios of plastic and odor neutralizer can be seen in Examples 1-8 of Table 1.

[0113] Preparation of test specimens

[0114] The compound was molded into test specimens using an injection molding machine (Engel Victory 200 / 50) (with a temperature of 220°C in all four heating zones).

[0115] Type 1A specimens (DIN EN ISO 527-2) were prepared to measure the tensile modulus. Type 1 specimens (DIN EN ISO 179-1) for measuring Charpy impact strength and temperature deflection under load were cut from the Type 1A specimens.

[0116] For odor testing using VDA270, a small plate of type D2 was molded according to DIN EN ISO 294-3.

[0117] [Table 1]

[0118] *Polysaccharide types: a=20% amylose + 80% amylopectin; b=55% amylose + 45% amylopectin; c=70% amylose + 30% amylopectin; d=1% amylose + 99% amylopectin Exemplary embodiments of the present invention are described below. <1> a) Materials composed of plastics and other components, b) An odor neutralizing agent containing calcium silicate hydrate, c) Polysaccharides and, d) Adhesion promoter, A composition containing the following: <2> The odor neutralizing agent is contained in an amount suitable for reducing the odor by 0.5 units or more, preferably 1.0 unit or more, and particularly 1.5 units or more, of VDA270. <1> The composition described above. <3> Including a) and b) below, The sum of the weight percentages in a) and b), the sum of the weight percentages in i) and ii), and the sum of the weight percentages in iii) to v) are all 100% by weight. <1> or <2> The composition described above. i) 20.0-99.9% by weight of plastic, ii) 0.1 to 80.0% by weight of other components, including a) Material in a quantity of 10.0 to 99.9% by weight. iii) 50.0-99.8% by weight of calcium silicate hydrate, iv) 0.1 to 50.0% by weight of polysaccharides, v) 0.1 to 10.0% by weight of an adhesion promoter, including b) Odor neutralizer in an amount of 0.1 to 90.0% by weight. <4> The aforementioned plastic, a) Polyolefins, in particular polyethylene and its copolymers and modified products, polypropylene and its copolymers, polybutene, polyisobutylene, polymethylpentene, and cycloolefin copolymers, b) Poly(vinyl chloride) and poly(vinyl chloride) modified products, c) Styrene homopolymers and styrene copolymers, d) Polyacrylates, in particular polyacrylonitrile and its copolymers, and poly(methyl methacrylate) and its copolymers and blends, e) Polyacetal, f) Fluoroplastics, g) Polyamide, h) Thermoplastic polyesters, particularly polycarbonate, poly(ethylene terephthalate), poly(butylene terephthalate), polyarylsulfone and polyarylsulfide, polyetherketone, polyimide, and copolyimide. i) Thermosetting polycondensates, particularly phenolic resins, urea / formaldehyde plastics, melamine / formaldehyde plastics, unsaturated polyester resins, alkyd resins, and silicones. j) Thermosetting polyducts, especially epoxy resins, k) Polyurethane, in particular crosslinked polyurethane, and thermoplastic polyurethane elastomer, l) Elastomer polymers, especially natural rubber, butadiene rubber, styrene-butadiene rubber, chlorobutadiene rubber, acrylonitrile-butadiene rubber, hydrogenated acrylonitrile-butadiene rubber, ethylene-propylene-diene rubber, butyl rubber, ethylene oxide Side-epichlorohydrin rubber, acrylate rubber, ethylene acrylate rubber, fluororubber, and perfluororubber, m) Biopolymers, particularly polylactic acid, cellulose and cellulose derivatives, lignin-based thermoplasts, thermosetting materials mainly composed of renewable raw materials, and natural fiber composite materials. as well as mixtures thereof Selected from the group consisting of, <1> ~ <3> A composition according to any one of the items. <5> The aforementioned plastic or material is composed of recycled plastic in part or in whole. <1> ~ <4> A composition according to any one of the items. <6> The other components of the aforementioned material are a) Fillers, especially mineral-based fillers, b) Inorganic fibers and organic fibers, c) Plastic additives, such as lubricants, anti-blocking agents, mold release agents, antioxidants, photoprotective agents, heat stabilizers, foam stabilizers, antistatic agents, anti-fogging additives, slip additives, flame retardants, colorants, effect pigments, fluorescent dyes, laser marking additives, impact modifiers, softeners, adhesion promoters, propellants, nucleating agents, clarifying agents, acid scavengers, antimicrobial additives, antiviral additives, and antifungal agents. d) Contaminants resulting from the manufacture, preparation, further processing and use of the said materials, as well as mixtures thereof Selected from the group consisting of, <1> ~ <5> A composition according to any one of the items. <7> The BET specific surface area of ​​the aforementioned calcium silicate hydrate is 20 m². 2 / g or more, preferably 30m 2 The amount is 1 / g or more, and / or the BET specific surface area of ​​the calcium silicate hydrate is 800 m². 2 / g or less, preferably 50m 2 Less than / g <1> ~ <6> A composition according to any one of the items. <8> The calcium silicate hydrate is selected from the group consisting of crystalline calcium silicate hydrate, particularly xonotlite and tobermorite, and mixtures thereof. <1> ~ <7> A composition according to any one of the items. <9> a) The polysaccharide has at least a partially helical structure, b) The average molecular weight of the polysaccharide is greater than 10,000 g / mol, particularly greater than 100,000 g / mol, and / or c) The polysaccharide is starch, a starch derivative, or a mixture thereof. <1> ~ <8> A composition according to any one of the items. <10> The adhesion promoter is a functional silane having at least one alkoxy group on each silicon atom, and in particular the functional silane has an amino group, alkyl group, epoxy group, alkoxy group, alkenyl group, alkynyl group, aryl group, fluoroalkyl group, carbonyl group, carboxyl group, hydroxyl group, acrylic group, and / or methacrylic group, and in particular the functional silane is tetramethyl orthosilicate (TMOS) or tetraethyl orthosilicate (TEOS), or a mixture thereof. <1> ~ <9> A composition according to any one of the items. <11> The adhesion promoter is bound to the calcium silicate hydrate. <1> ~ <10> A composition according to any one of the items. <12> a) Materials composed of plastics and other components, b) An odor neutralizing agent containing calcium silicate hydrate, A composition comprising, The aforementioned plastic or material is made up of recycled plastic, in part or in whole. composition. <13> The odor neutralizing agent is Polysaccharides, and / or Adhesion promoter Further including, <12> The composition described above. <14> The odor neutralizing agent is contained in an amount suitable for reducing the odor by 0.5 units or more, preferably 1.0 unit or more, and particularly 1.5 units or more, of VDA270. <12> or <13> The composition described above. <15> Including a) and b) below, The sum of the weight percentages in a) and b), the sum of the weight percentages in i) and ii), and the sum of the weight percentages in iii) to v) are all 100% by weight. <12> ~ <14> A composition according to any one of the items. i) 20.0-99.9% by weight of plastic, ii) 0.1 to 80.0% by weight of other components, including a) Material in a quantity of 10.0 to 99.9% by weight. iii) 50.0-100% by weight of calcium silicate hydrate, iv) 0-50.0% by weight of polysaccharides, v) 0-10.0% by weight of an adhesion promoter, including b) Odor neutralizer in an amount of 0.1 to 90.0% by weight. <16> The aforementioned plastic, a) Polyolefins, in particular polyethylene and its copolymers and modified products, polypropylene and its copolymers, polybutene, polyisobutylene, polymethylpentene, and cycloolefin copolymers, b) Poly(vinyl chloride) and poly(vinyl chloride) modified products, c) Styrene homopolymers and styrene copolymers, d) Polyacrylates, in particular polyacrylonitrile and its copolymers, and poly(methyl methacrylate) and its copolymers and blends, e) Polyacetal, f) Fluoroplastics, g) Polyamide, h) Thermoplastic polyesters, especially polycarbonate, poly(ethylene terephthalate), poly(butylene terephthalate), polyarylsulfones and polyarylsulfides, polyetherketones, polyimides, and copolyimides. i) Thermosetting polycondensates, particularly phenolic resins, urea / formaldehyde plastics, melamine / formaldehyde plastics, unsaturated polyester resins, alkyd resins, and silicones. j) Thermosetting polyducts, especially epoxy resins, k) Polyurethane, in particular crosslinked polyurethane, and thermoplastic polyurethane elastomer, l) Elastomer polymers, particularly natural rubber, butadiene rubber, styrene-butadiene rubber, chlorobutadiene rubber, acrylonitrile-butadiene rubber, hydrogenated acrylonitrile-butadiene rubber, ethylene-propylene-diene rubber, butyl rubber, ethylene oxide-epichlorohydrin rubber, acrylate rubber, ethylene acrylate rubber, fluororubber, and perfluororubber. m) Biopolymers, particularly polylactic acid, cellulose and cellulose derivatives, lignin-based thermoplasts, thermosetting materials mainly composed of renewable raw materials, and natural fiber composite materials. as well as mixtures thereof Selected from the group consisting of, <12> ~ <15> A composition according to any one of the items. <17> The other components of the aforementioned material are a) Fillers, especially mineral-based fillers, b) Inorganic fibers and organic fibers, c) Plastic additives, such as lubricants, anti-blocking agents, mold release agents, antioxidants, photoprotective agents, heat stabilizers, foam stabilizers, antistatic agents, anti-fogging additives, slip additives, flame retardants, colorants, effect pigments, fluorescent dyes, laser marking additives, impact modifiers, softeners, adhesion promoters, propellants, nucleating agents, clarifying agents, acid scavengers, antimicrobial additives, antiviral additives, and antifungal agents. d) Contaminants resulting from the manufacture, preparation, further processing and use of the said materials, as well as mixtures thereof Selected from the group consisting of, <12> ~ <16> A composition according to any one of the items. <18> The BET specific surface area of ​​the aforementioned calcium silicate hydrate is 20 m². 2 / g or more, preferably 30m 2 The amount is 1 / g or more, and / or the BET specific surface area of ​​the calcium silicate hydrate is 800 m². 2 / g or less, preferably 50m 2 Less than / g <12> ~ <17> A composition according to any one of the items. <19> The calcium silicate hydrate is selected from the group consisting of crystalline calcium silicate hydrate, particularly xonotlite and tobermorite, and mixtures thereof. <12> ~ <18> A composition according to any one of the items. <20> a) The polysaccharide has at least a partially helical structure, b) The average molecular weight of the polysaccharide is greater than 10,000 g / mol, particularly greater than 100,000 g / mol, and / or c) The polysaccharide is starch, a starch derivative, or a mixture thereof. <13> ~ <19> A composition according to any one of the items. <21> The adhesion promoter is a functional silane having at least one alkoxy group on each silicon atom, and in particular the functional silane has an amino group, alkyl group, epoxy group, alkoxy group, alkenyl group, alkynyl group, aryl group, fluoroalkyl group, carbonyl group, carboxyl group, hydroxyl group, acrylic group, and / or methacrylic group, and in particular the functional silane is tetramethyl orthosilicate (TMOS) or tetraethyl orthosilicate (TEOS), or a mixture thereof. <13> ~ <20> A composition according to any one of the items. <22> The adhesion promoter is bound to the calcium silicate hydrate. <13> ~ <21> A composition according to any one of the items. <23> <1> or <2> A method for producing the composition described above, The process includes a step of melting and mixing the odor neutralizing agent into a molding compound of a material composed of plastic and other components in an extruder or kneader. method. <24> The components of the odor neutralizer are either directly mixed with the material or uniformly pre-mixed with the material, and in particular, the adhesion promoter is first applied to the calcium silicate hydrate. <23> Methods used. <25> The use of an odor neutralizer containing calcium silicate hydrate for neutralizing odors in materials including plastics, recycled plastics, or mixtures thereof, The odor neutralizing agent is Polysaccharides and, Adhesion promoter and, Further including, use. <26> The use of an odor neutralizer containing calcium silicate hydrate for neutralizing odors in materials including recycled plastics, In particular, the odor neutralizing agent is Polysaccharides, and / or Adhesion promoter, Further including, use.

Claims

1. a) Materials composed of plastic and other components, b) An odor neutralizer containing calcium silicate hydrate, c) Polysaccharides and, d) Adhesion promoter, Includes, The adhesion promoter is a functional silane having at least one alkoxy group on each silicon atom. composition.

2. The composition according to claim 1, wherein the odor neutralizing agent is contained in an amount suitable for reducing the odor by 0.5 units or more in terms of VDA 270.

3. Including a) and b) below, The sum of the weight percentages in a) and b), the sum of the weight percentages in i) and ii), and the sum of the weight percentages in iii) to v) are all 100% by weight. The composition according to claim 1 or claim 2. i) 20.0 to 99.9% by weight of plastic, ii) 0.1 to 80.0% by weight of other components, including a) 10.0 to 99.9% by weight of material. iii) 50.0 to 99.8% by weight of calcium silicate hydrate, iv) 0.1 to 50.0% by weight of polysaccharides, v) 0.1 to 10.0% by weight of an adhesion promoter, including b) 0.1 to 90.0% by weight of an odor neutralizing agent.

4. The aforementioned plastic, a) Polyolefins, b) Poly(vinyl chloride) and modified poly(vinyl chloride), c) Styrene homopolymers and styrene copolymers, d) Polyacrylate, e) Polyacetal, f) Fluoroplastics, g) Polyamide, h) Thermoplastic polyester, i) thermosetting polycondensate, j) Thermosetting poly duct, k) Polyurethane, l) Elastomer polymer, m) Biopolymers, n) Polycarbonate, as well as mixtures thereof Selected from the group consisting of, The composition according to claim 1 or claim 2.

5. The composition according to claim 1 or 2, wherein the plastic or material is composed of recycled plastic in part or in whole.

6. The other components of the aforementioned material are a) Filler, b) Inorganic fibers and organic fibers, c) Plastic additives, d) Contaminants resulting from the manufacture, preparation, further processing and use of the said materials, as well as mixtures thereof Selected from the group consisting of, The composition according to claim 1 or claim 2.

7. The BET specific surface area of ​​the aforementioned calcium silicate hydrate is 20 m². ２ The amount is 1 / g or more, and / or the BET specific surface area of ​​the calcium silicate hydrate is 800 m². ２ The composition according to claim 1 or claim 2, wherein the amount is less than or equal to / g.

8. The composition according to claim 1 or claim 2, wherein the calcium silicate hydrate is selected from the group consisting of crystalline calcium silicate hydrates.

9. a) The polysaccharide has at least a partially helical structure, b) The average molecular weight of the polysaccharide is greater than 10,000 g / mol, and / or c) The polysaccharide is starch, a starch derivative, or a mixture thereof. The composition according to claim 1 or claim 2.

10. The composition according to claim 1 or claim 2, wherein the adhesion promoter is bonded to the calcium silicate hydrate.

11. a) Materials composed of plastic and other components, b) An odor neutralizer containing calcium silicate hydrate, A composition comprising, The aforementioned plastic or material is composed of recycled plastic in part or in whole, The odor neutralizing agent is contained in an amount suitable for reducing the odor by 0.5 units or more in terms of VDA270. The odor neutralizing agent is Polysaccharides, and / or Adhesion promoter It further includes, The adhesion promoter is a functional silane having at least one alkoxy group on each silicon atom. composition.

12. Including a) and b) below, The sum of the weight percentages in a) and b), the sum of the weight percentages in i) and ii), and the sum of the weight percentages in iii) to v) are all 100% by weight. The composition according to claim 11. i) 20.0 to 99.9% by weight of plastic, ii) 0.1 to 80.0% by weight of other components, including a) 10.0 to 99.9% by weight of material. iii) 50.0 to 100% by weight of calcium silicate hydrate, iv) 0-50.0% by weight of polysaccharides, v) 0 to 10.0% by weight of an adhesion promoter, including b) 0.1 to 90.0% by weight of an odor neutralizing agent.

13. The aforementioned plastic, a) Polyolefins, b) Poly(vinyl chloride) and modified poly(vinyl chloride), c) Styrene homopolymers and styrene copolymers, d) Polyacrylate, e) Polyacetal, f) Fluoroplastics, g) Polyamide, h) Thermoplastic polyester, i) thermosetting polycondensate, j) Thermosetting poly duct, k) Polyurethane, l) Elastomer polymer, m) Biopolymers, n) Polycarbonate, as well as mixtures thereof Selected from the group consisting of, The composition according to claim 11.

14. The other components of the aforementioned material are a) Filler, b) Inorganic fibers and organic fibers, c) Plastic additives, d) Contaminants resulting from the manufacture, preparation, further processing and use of the said materials, as well as mixtures thereof Selected from the group consisting of, The composition according to claim 11.

15. The BET specific surface area of ​​the aforementioned calcium silicate hydrate is 20 m². ２ The amount is 1 / g or more, and / or the BET specific surface area of ​​the calcium silicate hydrate is 800 m². ２ The composition according to claim 11, wherein the amount is less than or equal to / g.

16. The composition according to claim 11, wherein the calcium silicate hydrate is selected from the group consisting of crystalline calcium silicate hydrates.

17. a) A material composed of plastic and other components, b) An odor neutralizer containing calcium silicate hydrate, A composition comprising, The aforementioned plastic or material is composed of recycled plastic in part or in whole, The odor neutralizing agent is Polysaccharides, and / or Adhesion promoter It further includes, The adhesion promoter is a functional silane having at least one alkoxy group on each silicon atom, 1) The polysaccharide has at least a partially helical structure, 2) The average molecular weight of the polysaccharide is greater than 10,000 g / mol, and / or 3) A composition in which the polysaccharide is starch, a starch derivative, or a mixture thereof.

18. The composition according to claim 17, wherein the odor neutralizer is contained in an amount suitable for reducing the odor by 0.5 units or more in terms of VDA 270.

19. The composition according to claim 11, wherein the adhesion promoter is bonded to the calcium silicate hydrate.

20. A method for producing the composition described in claim 1 or claim 2, The process includes a step of melting and mixing the odor neutralizing agent into a molding compound of a material composed of plastic and other components in an extruder or kneader. method.

21. The method according to claim 20, wherein the components of the odor neutralizer are directly mixed with the material or uniformly pre-mixed with the material.

22. The use of an odor neutralizer containing calcium silicate hydrate for neutralizing odors in materials including plastics, recycled plastics, or mixtures thereof, The odor neutralizing agent is Polysaccharides and, Adhesion promoter and, It further includes, The adhesion promoter is a functional silane having at least one alkoxy group on each silicon atom. use.

23. The use of an odor neutralizer containing calcium silicate hydrate for neutralizing odors in materials including recycled plastics, The odor neutralizing agent is Polysaccharides, and / or Adhesion promoter, It further includes, The adhesion promoter is a functional silane having at least one alkoxy group on each silicon atom. use.

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