EP4347701A1 - Composition neutralisant les odeurs - Google Patents

Composition neutralisant les odeurs

Info

Publication number
EP4347701A1
EP4347701A1 EP22730843.4A EP22730843A EP4347701A1 EP 4347701 A1 EP4347701 A1 EP 4347701A1 EP 22730843 A EP22730843 A EP 22730843A EP 4347701 A1 EP4347701 A1 EP 4347701A1
Authority
EP
European Patent Office
Prior art keywords
weight
calcium silicate
rubbers
plastic
composition according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22730843.4A
Other languages
German (de)
English (en)
Inventor
Erdem SENOL
Thorsten HILGERS
Olaf MÜHLING
Dirk Kruber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Quarzwerke GmbH
Original Assignee
Quarzwerke GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Quarzwerke GmbH filed Critical Quarzwerke GmbH
Publication of EP4347701A1 publication Critical patent/EP4347701A1/fr
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/54—Silicon-containing compounds
    • C08K5/541—Silicon-containing compounds containing oxygen
    • C08K5/5415—Silicon-containing compounds containing oxygen containing at least one Si—O bond
    • C08K5/5419—Silicon-containing compounds containing oxygen containing at least one Si—O bond containing at least one Si—C bond
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00—Use of pretreated ingredients
    • C08K9/04—Ingredients treated with organic substances
    • C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00—Use of pretreated ingredients
    • C08K9/08—Ingredients agglomerated by treatment with a binding agent
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
    • C08L3/02—Starch; Degradation products thereof, e.g. dextrin
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/002—Physical properties
    • C08K2201/006—Additives being defined by their surface area
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/20—Recycled plastic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Definitions

  • the present invention relates to a composition containing an odor neutralizer, a method for the composition and the use of the odor neutralizer.
  • smell is a key factor in the success of consumer products. If a material or component made of plastic, for example in the interior of a motor vehicle, smells subjectively unpleasant, this can have a negative impact on the purchase decision. For many plastic products there are also strict requirements regarding the emission of chemical substances. It is therefore in the interests of plastics processors and compounders to reduce odor emissions from plastics as much as possible.
  • odors occur. It is often not the plastic itself that is responsible for the smell, but residual amounts of low-molecular substances that remain from the manufacture of the plastic. Additives such as processing aids, stabilizers, fibers or fillers that are added to the plastic during the manufacture of a material can also cause unpleasant odours. In addition, during the manufacture and further processing of materials containing plastic, e.g. as a result of thermal decomposition, substances are produced which can lead to unpleasant odours.
  • Plastic recyclates from post-consumer waste contain odors that often cannot be completely removed during processing.
  • Packaging waste is often a typical product of the metabolism of microorganisms that generate a cheesy and fecal odour.
  • WO 2017/060171 describes the use of an inorganic additive, in particular a silicate material. Diatomaceous earth and calcium silicates are expressly mentioned.
  • the object of the present invention was to provide corresponding methods and products.
  • composition containing a material made of plastic and other ingredients and an odor neutralizer comprising calcium silicate hydrate.
  • plastics selected from the group consisting of polyolefins, in particular polyethylenes and their copolymers and modifications, polypropylenes and their copolymers, polybutenes, polyisobutylenes, polymethylpentenes and cycloolefin copolymers, polyvinyl chlorides and polyvinyl chloride modifications, styrene homopolymers and styrene copolymers are particularly suitable .
  • Polyacrylates in particular polyacrylonitriles and their copolymers and polymethyl methacrylates and their copolymers and blends, polyacetals, fluoroplastics, polyamides, thermoplastic polyesters, in particular polycarbonates, polyethylene terephthalates, polybutylene terephthalates, polyaryl sulfones and sulfides, polyether ketones, polyimides and copoly lyimides, duroplastic polycondensates , in particular
  • composition according to the invention always relates to plastics that contain other ingredients.
  • the combination of plastics and other ingredients is referred to as a material.
  • Typical other ingredients are in particular ingredients from the group consisting of fillers, in particular mineral fillers, inorganic and organic fibers, plastic additives including lubricants, antiblocking agents, release agents, antioxidants, light stabilizers, heat stabilizers, foam stabilizers, antistatic agents, antifogging additives, slip -Additives, flame retardants, colorants, effect pigments, optical brighteners, additives for laser inscription, impact modifiers, plasticizers, adhesion promoters, blowing agents, nucleating agents, transparency enhancers (clarifiers), acid scavengers, antibacterial additives, antivirus additives and fungicides, impurities from the production, preparation, further processing and use of the material as well as mixtures thereof.
  • plastic additives including lubricants, antiblocking agents, release agents, antioxidants, light stabilizers, heat stabilizers, foam stabilizers, antistatic agents, antifogging additives, slip -Additives, flame retardants, colorants, effect pigments, optical
  • the plastic or preferably the material consists entirely or partially of recycled plastic.
  • Plastic recyclates can be of the same type, type, type-similar, mixed or contaminated.
  • 'Single type' means that only one plastic from a raw material manufacturer with the same type designation is processed.
  • 'Single-type' means that plastics with the same identification according to DIN EN ISO 11469 or VDA 260, which may come from different raw material manufacturers, are processed.
  • 'Types of similar' plastics have the same basic polymers during processing, but differ in their properties (e.g. flame-retardant additives).
  • 'Mixed' means that different plastics with chemical compatibility are processed. They are only compatible if they can be homogeneously mixed with one another during the melting process and can be processed into a molding material with satisfactory mechanical properties and an acceptable surface.
  • the odor neutralization is achieved by an odor neutralizer comprising calcium silicate hydrate.
  • Calcium silicate hydrates are both natural and synthetic minerals, such as xonotlite.
  • CSH Calcium silicate hydrates
  • CaO molar ratio of CaO to S1O2
  • the water content is not taken into account in this calculation for characterization.
  • the calcium silicate hydrates are preferably crystalline calcium silicate hydrates.
  • Typical known calcium silicate hydrates are a) nesosubsilicates (island silicates with other anions) such as afwillite, bultfonteinite, 0-C2SH and reinhardbraunsite, b) sorosilicates such as dellaite, killalaite, jaffeite, kilchoanite and CsSs, c) inosilicates (chain silicates) such as tobermorite, clinotobermorite, Jennite, xonotlite, foshagite and hillebrandite, d) mixed sheet and chain silicates such as okenite, e) phyllosilicates (sheet silicates) such as nekoite, truscottite, K-phase and Z-phase and sheet silicates with (CÜ3) groups such as scawtite, fucalite , Tylleit and Spurrit.
  • the calcium silicate hydrate has a specific BET surface area of at least 20 m 2 /g, preferably at least 30 m 2 /g.
  • the BET surface area should preferably be at most 800 m 2 /g, preferably ⁇ 50 m 2 /g.
  • Particularly preferred calcium silicate hydrates are xonotlites and tobermorites and mixtures thereof.
  • the C/S ratio is in the range of 0.6 to 1.4, more preferably 0.8 to 1.2.
  • the odor neutralizer additionally comprises polysaccharide and/or adhesion promoter.
  • the polysaccharide preferably has one of the following properties: a) the polysaccharide has at least partially a helical structure, b) the polysaccharide has an average molecular weight greater than 10,000 g/mol, in particular greater than 100,000 g/mol and/or c) the polysaccharide is starch, a starch derivative or a mixture thereof.
  • Suitable polysaccharides are, for example, native tapioca starch, waxy maize starch (each from FH Diedrichs & Ludwig Post GmbH), Nastar pea starch (from Georg Breuer GmbH), AmyloGel 03003 Native Starch (from Cargill), Emwaxy 100 and Emfloc KC 750 (each from Emsland -Stärke GmbH) or mixtures thereof.
  • ком ⁇ онентs that are functional silanes are particularly suitable as adhesion promoters. At least one alkoxy group is preferably attached to each silicon atom of the functional silane.
  • the functional silane can contain amino, alkyl, epoxy, alkoxy, alkenyl, alkynyl, aryl, fluoroalkyl, carbonyl, carboxy, hydroxy, acrylic, and/or methacrylic groups.
  • Be preferred adhesion promoters are tetramethyl orthosilicate (TMOS) or tetraethyl orthosilicate (TEOS) or mixtures thereof.
  • the odor neutralizer is preferably contained in an amount which is suitable for reducing the odor according to VDA 270 by at least 0.5 units, preferably by at least 1.0 unit, in particular by at least 1.5 units.
  • a typical composition according to the invention is a composition containing a) 10.0-99.9% by weight material comprising i) 20.0-99.9% by weight plastic, ii) 0.1-80.0% by weight % other ingredients, b) 0.1 - 90.0% by weight odor neutralizer comprising iii) 50.0 to 100% by weight calcium silicate hydrate, iv) 0 - 50.0% by weight polysaccharide, v) 0 - 10 0.0% by weight adhesion promoter, the percentages by weight a) and b), i) and ii) and iii) to v) each adding up to 100% by weight.
  • the plastic or, preferably, the material consists entirely or partially of recycled plastic.
  • compositions containing a) 10.0-99.9% by weight of material comprising i) 20.0-99.9% by weight of plastic, ii) 0.1-80.0% by weight % of other ingredients, b) 0.1-90.0% by weight of odor neutralizer comprising iii) 50.0 to 99.8% by weight of calcium silicate hydrate, iv) 0.1-50.0% by weight of polysaccharide , v) 0.1-10.0% by weight adhesion promoter, the percentages by weight a) and b), i) and ii) and iii) to v) each adding up to 100% by weight.
  • the composition acts as a masterbatch that can be mixed with plastic in the application.
  • the composition defines a suitable end product.
  • the material content is 10 to 50% by weight and the odor neutralizer content is correspondingly 50 to 90% by weight.
  • the composition typically contains 50% to 99.9% by weight of material and 0.1% to 50% by weight of odor neutralizer.
  • a final product contains at least 3% or at least 5% or at least 10% by weight of odor neutralizer.
  • the adhesion promoter is bound to the calcium silicate hydrate.
  • the invention also relates to a process for producing the composition according to the invention, comprising the step of melt-mixing the odor neutralizer with molding compounds of plastic material and other ingredients in an extruder or kneader.
  • the components of the odor neutralizer are mixed directly with the material or premixed homogeneously.
  • the adhesion promoter is preferably first applied to the calcium silicate hydrate.
  • the invention also relates to the use of an odor neutralizer comprising calcium silicate hydrate for the odor neutralization of materials that contain plastics, plastic recyclates or mixtures thereof, in particular where the odor neutralizer also optionally comprises polysaccharides and/or adhesion promoters.
  • the odor behavior was tested according to VDA 270 variant B4 by 3 to 6 trained test persons. Each subject rates the smell according to the following scale:
  • Calcium silicate hydrate with the following properties:
  • amylose a) 20% amylose, 80% amylopectin b) 55% amylose, 45% amylopectin c) 70% amylose, 30% amylopectin d) 1% amylose, 99% amylopectin
  • TEOS Tetraethyl orthosilicate
  • the resulting compound strand was cooled over a water bath and granulated.
  • the odor neutralizer was dosed gravimetrically into the plastic melt via the side feeder.
  • the proportions by weight of plastic and odor neutralizer can be found in Table 1, Examples 1 to 8.
  • test specimens were injected into test specimens in an injection molding machine (Engel Victory 200/50) (temperature 220° C. in all 4 heating zones).
  • Test specimens of type 1A (DIN EN ISO 527-2) were injected to determine the tensile modulus.
  • the type 1A specimens were cut to form type 1 specimens (according to DIN EN ISO 179-1).

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention concerne une composition comprenant a) un matière plastique et d'autres substances, b) un agent neutralisant les odeurs comprenant un hydrate de silicate de calcium, c) un polysaccharide, d) un promoteur d'adhérence.
EP22730843.4A 2021-05-28 2022-05-27 Composition neutralisant les odeurs Pending EP4347701A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP21176476 2021-05-28
PCT/EP2022/064387 WO2022248656A1 (fr) 2021-05-28 2022-05-27 Composition neutralisant les odeurs

Publications (1)

Publication Number Publication Date
EP4347701A1 true EP4347701A1 (fr) 2024-04-10

Family

ID=76180922

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22730843.4A Pending EP4347701A1 (fr) 2021-05-28 2022-05-27 Composition neutralisant les odeurs

Country Status (5)

Country Link
EP (1) EP4347701A1 (fr)
JP (1) JP2024519423A (fr)
KR (1) KR20240013237A (fr)
CN (1) CN117413009A (fr)
WO (1) WO2022248656A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5623013A (en) * 1994-12-16 1997-04-22 Ube Industries, Ltd. Xonotlite-reinforced organic polymer composition
BRPI1014745B1 (pt) * 2009-06-22 2020-10-20 Borealis Ag artigo para interior de automóveis com odor reduzido
DE102011110932A1 (de) * 2011-08-13 2013-02-14 Timo Stock Gasfilter
BR112017026490B1 (pt) 2015-10-07 2022-05-03 Imerys Talc Europe Composição de carga, seu método de preparação, uso de um aditivo inorgânico, método para reduzir odor de uma composição de carga, e artigo

Also Published As

Publication number Publication date
KR20240013237A (ko) 2024-01-30
WO2022248656A1 (fr) 2022-12-01
CN117413009A (zh) 2024-01-16
JP2024519423A (ja) 2024-05-13

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