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JP-7855615-B2 - Odor neutralizing composition

JP7855615B2JP 7855615 B2JP7855615 B2JP 7855615B2JP-7855615-B2

Inventors

  • シェノル、エルデム
  • ヒルガース、トルステン
  • ミューリンク、オラフ
  • クルーバー、ディルク

Assignees

  • クヴァルツヴェルケ ゲーエムベーハー

Dates

Publication Date
20260508
Application Date
20220527
Priority Date
20210528

Claims (20)

  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, a) 10.0 to 99.9% by weight of the 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, b) an odor neutralizing agent in an amount of 0.1 to 90.0% by weight.
  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, Selected from the group consisting of mixtures thereof, 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 entirely.
  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, Selected from the group consisting of mixtures thereof, The composition according to claim 1 or claim 2.
  7. The composition according to claim 1 or claim 2, wherein the BET specific surface area of the calcium silicate hydrate is 20 m² /g or more, and/or the BET specific surface area of the calcium silicate hydrate is 800 m² /g or less.
  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 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 Further comprising polysaccharides and/or adhesion promoters, 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, a) 10.0 to 99.9% by weight of the 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, b) an odor neutralizing agent in an amount of 0.1 to 90.0% by weight.
  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, Selected from the group consisting of mixtures thereof, 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, Selected from the group consisting of mixtures thereof, The composition according to claim 11 .
  15. The composition according to claim 11 , wherein the BET specific surface area of the calcium silicate hydrate is 20 m² /g or more, and/or the BET specific surface area of the calcium silicate hydrate is 800 m² /g or less.
  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) 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 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 neutralizing agent 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.

Description

This invention relates to a composition containing an odor neutralizing agent, a method for preparing the composition, and the use of the odor neutralizing agent. Setting aside haptics, odor is an essential factor influencing the success of consumer products. For example, if a plastic material or component in an automobile interior has a subjectively unpleasant odor, it can negatively impact purchasing decisions. Furthermore, numerous plastic products must meet stringent requirements regarding chemical emissions. Therefore, minimizing odor emissions from plastics is a matter of concern for plastics processors and compounders. There are many causes of odor. In many cases, the odor is not due to the plastic itself, but to residual low-molecular-weight substances that remain after the plastic's preparation. 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. 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. Numerous 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. There is a need for further options for reducing plastic odors, which, in some embodiments, may be superior to known options. The objective of this invention is to provide corresponding methods and products. This objective is achieved by a composition comprising a material consisting of plastic and further components, and an odor neutralizer containing calcium silicate hydrate. 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. 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." Further typical components include, in particular, fillers, especially mineral fillers, inorganic and organic fibers, plastic additives (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, antifungal agents, etc.), contaminants resulting from the manufacture, preparation, further processing and use of materials, and mixtures thereof. In preferred embodiments of the present invention, the pla