Compositions suitable for enhancing the flexural properties of objects containing vegetable fibers

公开(公告)号:
EP4240906B1
公开(公告)日:
2024-08-28
申请号:
EP2021802355
申请日:
2021-11-03
授权日:
2024-08-28
受理局:
欧洲专利局
专利类型:
授权发明
简单法律状态:
有效
法律状态/事件:
授权
IPC分类号:
D21J3/00 | B27N3/04 | C08L101/00 | B27N3/00 | B27N3/02 | B27N3/18 | C08J5/04 | C08L77/04
战略新兴产业分类:
-
国民经济行业分类号:
C3541 | C2221
当前申请(专利权)人:
COVESTRO (NETHERLANDS) B.V.
原始申请(专利权)人:
COVESTRO (NETHERLANDS) B.V.
当前申请(专利权)人地址:
Urmonderbaan 22, RD Geleen, NL
工商统一社会信用代码:
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工商登记状态:
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工商注册地址:
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工商成立日期:
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工商企业类型:
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发明人:
HAYDEN, DOUGLAS, RICHARD | KONING, CORNELIS, EME | VELDHUIS, THEO
代理机构:
LEVPAT
代理人:
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摘要:
The invention relates to compositions comprising a constituent-A, which constituent-A consists of a polylysine component and a fibrous component which fibrous component consists of at least one fibrous element which fibrous element comprises vegetable fibers, and wherein the fibrous element is free of any fibers other than the vegetable fibers, and wherein the composition is free of any fibers other than the vegetable fibers of the fibrous component (compositions of the invention). The invention further relates to processes for obtaining an object from the compositions of the invention. The invention further relates to objects such as sheets, tapes, sticks, strips, films, cloths, containers, boards, panels, beams, frames, planks, engineered wood (e.g. fibreboards) obtained by said processes. The invention further relates to articles comprising a) a part which is solid at 23 °C and 1 atm; and one or both of b) and c), wherein b) is a composition of the invention, and c) is an object of the invention (articles of the invention). The invention further relates to various uses of any one or any combination of the compositions of the invention, the objects of the invention and the articles of the invention.
技术问题语段:
They are used for furniture and are typically more expensive than softwoods.|Objects of this sort that suffer from poor flexural properties are usually fragile with little or no tolerance at all for mechanical and/or physical stresses.|As a consequence the poor flexural properties severely limits their application and uses -if any-, and/or their lifetime -once in use- and consequently are typically rejected by the consumers.|This is a major drawback for objects of this sort.|Unless, a technical solution that would enable the preparation of objects of this sort with enhanced flexural properties, said objects are unattractive for consumers and/or for a variety of -otherwise potential- industrial uses for them.|However, the above desire still represents an unmet need since the solution to such a problem, is particularly challenging and complex.
技术功效语段:
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权利要求:
1. A composition comprising a constituent-A, which constituent-A consists of: - a polylysine component, and - a fibrous component, wherein the polylysine component is selected from the group consisting of polylysines-X and mixtures thereof, and wherein the polylysines-X are selected from the group consisting of hyperbranched polylysines and primary ammonium salt of hyperbranched polylysines, wherein each one of the polylysines-X has a degree of branching as determined by 1H-NMR spectroscopy disclosed in the specification, of at least 0.30 and at most 0.60, an apparent viscosity as determined by the Rheometry Method disclosed in the specification, of at least 400 and at most 8000 mPa.s, and a gel content as determined by the Gel-Content Method disclosed in the specification, of at most 4.0 %, and the fibrous component consists of at least one fibrous element which fibrous element comprises vegetable fibers, and wherein the fibrous element is free of any fibers other than the vegetable fibers, and wherein the composition is free of any fibers other than the vegetable fibers of the fibrous component, and wherein the composition optionally comprises a constituent-B which is selected from the group consisting of proteins and mixtures thereof, and the constituent-B is different and distinct from any other component and constituent of the composition, in an amount of at most 0.30 wt.% of the composition, and wherein the composition optionally comprises a constituent-C which is selected from the group consisting of polyphenolic macromolecular compounds and mixtures thereof, wherein each of the polyphenolic macromolecular compounds is a macromolecular compound which bears a multitude of phenol or polyhydroxybenzene radicals, and the constituent-C is different and distinct from any other component and constituent of the composition, in an amount such that the ratio of the total weight of the constituent-C divided by the total weight of the polylysine component is at most 0.40. 2. The composition as claimed in claim 1, wherein the polylysines-X are selected from the group consisting of hyperbranched polylysines and primary ammonium salt of hyperbranched polylysines wherein the anion that counters the at least one primary ammonium cation (-NH3+) present in the structure of the primary ammonium salt of hyperbranched polylysines is selected from the group consisting of fluoride, chloride, bromide and iodide. 3. The composition as claimed in claim 1, wherein the polylysines-X are hyperbranched polylysines. 4. The composition as claimed in any one of the preceding claims, wherein the composition is free of constituent-B. 5. The composition as claimed in any one of the preceding claims, wherein the ratio of the total weight of the constituent-C divided by the total weight of the polylysine component is at most 0.15, preferably the composition is free of constituent-C. 6. The composition as claimed in any one of the preceding claims, wherein each one of the polylysines-X has a degree of branching of at least 0.30 and at most 0.55, preferably at least 0.30 and at most 0.50, more preferably at least 0.30 and at most 0.45, most preferably at least 0.30 and at most 0.40. 7. The composition as claimed in any one of the preceding claims, wherein each one of the polylysines-X has an apparent viscosity of at least 400 and at most 6000, more preferably at least 400 and at most 4000, even more preferably at least 400 and at most 2500, most preferably at least 400 and at most 2000, for example at least 400 and at most 1800, for example at least 400 and at most 1550, for example at least 450 and at most 8000, for example at least 450 and at most 6000, for example at least 450 and at most 4000, for example at least 450 and at most 2000, for example at least 450 and at most 1800, for example at least 450 and at most 1550 mPa.s. 8. The composition as claimed in any one of the preceding claims, wherein each one of the polylysines-X has a gel content of at most 1.0, preferably at most 0.5, more preferably at most 0.2, even more preferably at most 0.1, especially a gel content of 0.0 %. 9. The composition as claimed in any one of the preceding claims 1 to 6, wherein each one of the polylysines-X has: - a number average molecular weight (abbreviated as Mn) weight as determined by the Gel-Permeation Chromatography Method disclosed in the specification, of at least 1100 and at most 10000 Da, preferably at least 1500 and at most 8000 Da, more preferably at least 2000 at most 6000 Da, - a weight average molecular weight (abbreviated as Mw) as determined by the Gel-Permeation Chromatography Method disclosed in the specification, of at least 3000 and at most 50000 Da, preferably at least 5000 and at most 40000 Da, more preferably at least 10000 and at most 30000 Da, - a polydispersity calculated as the ratio of Mw/Mn, of at least 2 and at most 15, preferably at least 2 and at most 10, more preferably at least 3 and at most 8, - an apparent viscosity of at least 400 and at most 6000, more preferably at least 400 and at most 4000, even more preferably at least 400 and at most 2500, most preferably at least 400 and at most 2000, for example at least 400 and at most 1800, for example at least 400 and at most 1550, for example at least 450 and at most 8000, for example at least 450 and at most 6000, for example at least 450 and at most 4000, for example at least 450 and at most 2000, for example at least 450 and at most 1800, for example at least 450 and at most 1550 mPa.s, - an amine number as determined by the Titration Method disclosed in the specification, of at least 200 and at most 700 mg KOH/g, preferably at least 250 and at most 600 mg KOH/g, more preferably at least 250 and at most 500 mg KOH/g, especially at least 300 and at most 400 mg KOH/g, - an acid value as determined by the Titration Method disclosed in the specification, of at least 10 and at most 150 mg KOH/g, preferably at least 30 and at most 100, more preferably at least 40 and at most 90 mg KOH/g, and - a gel content of at most 3.0 %, preferably at most 2.0 % more preferably at most 1.0 %, even more preferably at most 0.5 %, most preferably at most 0.1 %, especially at most 0.05 %, more especially a gel content of 0.0 %. 10. The composition as claimed in any one of the preceding claims, wherein the polylysine component is present in an amount of at least 0.1 and at most 30.0 wt% of the composition. 11. The composition as claimed in any one of the preceding claims, wherein the vegetable fibers are selected from the group consisting of natural cellulose fibers, natural lignocellulosic fibers, and mixtures thereof. 12. The composition as claimed in any one of the preceding claims 1 to 10, wherein the vegetable fibers are selected from the group consisting of wood fibers, reed fibers, bamboo fibers, seaweed, jute fibers, flax fibers, hemp fibers, ramie fibers, manila fibers, sisal fibers, kapok fibers, cotton, banana fibers, coconut fibers, rye fibers, wheat fibers, rice fibers, kenaf fibers, straw fibers, grass fibers, leaf fibers, and mixtures thereof. 13. The composition as claimed in any one of the preceding claims 1 to 10, wherein the vegetable fibers are selected from the group consisting of wood fibers, reed fibers, and mixtures thereof, preferably the vegetable fibers are wood fibers. 14. The composition as claimed in any one of claims 1 to 13, wherein the fibrous element is selected from the group consisting of fibers, filaments, yarns, strips, strands, threads, staple fiber yarns, particles, chips, shavings, flakes, lamellae, pulp, and mixtures thereof; preferably the fibrous element is selected from the group consisting of fibers, filaments, yarns, threads, staple fiber yarns, particles, chips, shavings, flakes, pulp, and mixtures thereof; more preferably the fibrous element is a wood chip. 15. The composition as claimed in any one of claims 1 to 10, wherein the fibrous component consists of wood chips wherein the d50 which is the median value of the particle size distribution of the wood chips determined according to the ISO 17827-1:2016, is at least 1 and at most 50, preferably at least 1 and at most 40, for example at least 1 and most 30, for example at least 1 and at most 20, for example at least 1 and at most 15, for example at least 1 and at most 10, for example at least 1 and at most 8 mm. 16. A process for obtaining an object wherein the process comprises the steps of: - providing a composition as claimed in any one of the preceding claims 1 to 15; and - subjecting the composition to heat and/or pressure and/or vacuum, preferably simultaneous heat and pressure, to form an object, and - collecting the object. 17. An object obtained by a process as claimed in claim 16. 18. The object as claimed in claim 17, wherein the object is selected from the group consisting of sheets, tapes, sticks, strips, films, cloths, containers, boards, panels, beams, frames, planks, engineered wood. 19. The object as claimed in claim 17, wherein the object is engineered wood. 20. The object as claimed in claim 17, wherein the object is fibreboard. 21. An article comprising: a) a part which is solid at 23 °C and 1 atm; and one or both of b) and c), wherein b) is a composition as claimed in any one of claims 1-15, and c) is an object as claimed in any one the claims 17 to 20. 22. Use of any one or any combination of the i) to iii): i) a composition as claimed in any one of the claims 1 to 15; ii) an object as claimed in any one of claims 17 to 20; iii) an article as claimed in claim 21; in absorbents, 3D-printing, automotive applications, marine applications, aerospace applications, medical items, defense applications, sports/recreational applications, architectural applications, bottling applications, household applications, machinery applications, can applications, coil applications, energy related applications, and electricity related applications.
技术领域:
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背景技术:
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发明内容:
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具体实施方式:
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