JP5785192B2 - 紙微粉体含有樹脂成形体及びその製造方法 - Google Patents
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
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- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/14—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by a layer differing constitutionally or physically in different parts, e.g. denser near its faces
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- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/32—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed at least two layers being foamed and next to each other
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L97/00—Compositions of lignin-containing materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2311/00—Use of natural products or their composites, not provided for in groups B29K2201/00 - B29K2309/00, as reinforcement
- B29K2311/12—Paper, e.g. cardboard
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/06—Vegetal particles
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- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
- Y10T428/1372—Randomly noninterengaged or randomly contacting fibers, filaments, particles, or flakes
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- 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
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- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249981—Plural void-containing components
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- 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
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- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249986—Void-containing component contains also a solid fiber or solid particle
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- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249987—With nonvoid component of specified composition
- Y10T428/249988—Of about the same composition as, and adjacent to, the void-containing component
- Y10T428/249989—Integrally formed skin
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Description
Claims (13)
- 紙微粉体を含む熱可塑性樹脂からなり、表面に形成された非発泡層と内部に形成された発泡層とを備える紙微粉体含有樹脂成形体において、
該紙微粉体含有樹脂成形体は、熱可塑性樹脂100質量部に対し、平均粒子径が25〜200μmの範囲の紙微粉体を1〜400質量部の範囲で含むと共に、
該発泡層は、表面に近い側から順に、10〜100μmの範囲の平均孔径を備える気泡からなる第1の発泡層と、第1の発泡層より小さな5〜50μmの範囲の平均孔径を備える気泡からなる第2の発泡層と、第1の発泡層より大きな20〜500μmの範囲の平均孔径を備える気泡からなる第3の発泡層とからなることを特徴とする紙微粉体含有樹脂成形体。 - 請求項1記載の紙微粉体含有樹脂成形体において、前記熱可塑性樹脂は、ポリエチレン、ポリプロピレン、ポリエステル、ポリ乳酸、熱可塑性エラストマー、ポリスチレン、ABS樹脂からなる群から選択される1種の樹脂であることを特徴とする紙微粉体含有樹脂成形体。
- 請求項1記載の紙微粉体含有樹脂成形体において、前記紙微粉体は、新聞紙、雑誌、包装紙、段ボール、OA用紙からなる群から選択される1種以上の古紙を原料として微粉砕されたものであることを特徴とする紙微粉体含有樹脂成形体。
- 請求項1記載の紙微粉体含有樹脂成形体において、付香成分を含有することを特徴とする紙微粉体含有樹脂成形体。
- 請求項4記載の紙微粉体含有樹脂成形体において、前記付香成分は、ヒノキチオール、トロポノイド、α−ツヤプリシン、γ−ツヤプリシン、β−ドラブリン、モノテルペン炭化水素類、モノテルペンアルコール類、フェノール類、フェノールメチルエーテル類、セキステルペン炭化水素類、セキステルペンアルコール類、ケトン類、ラクトン類、カルボン酸、ジテルペンアルコール、アルデヒド、エステル、オキサイド、アンモニア、酢酸、酪酸、イソ吉草酸、アミノ酸、有機酸、カテキン、脂肪酸からなる群から選択される1種以上の化合物であることを特徴とする紙微粉体含有樹脂成形体。
- 請求項1記載の紙微粉体含有樹脂成形体において、床材、家具、電化製品の枠体、自動車内装部品、浴槽の蓋、トイレ壁材、キッチン部材、飲料用食器、飲料用以外の各種食器、容器、パッケージ、中空体、コールドパリソン、釣用疑似餌、防虫剤容器、文房具、ファイルからなる群から選択される1種の成形体であることを特徴とする紙微粉体含有樹脂成形体。
- 請求項1記載の紙微粉体含有樹脂成形体において、前記成形体は前記紙微粉体により少なくとも内表面が粗面化された飲料用食器であることを特徴とする紙微粉体含有樹脂成形体。
- 溶融状態の熱可塑性樹脂100質量部に対し、平均粒子径が25〜200μmの範囲の紙微粉体を、1〜400質量部の範囲となるように混合して紙微粉体含有熱可塑性樹脂組成物を形成する工程と、
該紙微粉体含有熱可塑性樹脂組成物に、超臨界状態の流体を該紙微粉体含有熱可塑性樹脂組成物の0.05〜2質量%の範囲で加圧下に含浸する工程と、
該超臨界状態の流体が含浸された該紙微粉体含有熱可塑性樹脂組成物を所定形状のキャビティに射出する工程と、
該キャビティに射出された該紙微粉体含有熱可塑性樹脂組成物の圧力が該流体の臨界圧力未満になったときに、該キャビティの容積を拡大して、該紙微粉体含有熱可塑性樹脂組成物の圧力を、該紙微粉体含有熱可塑性樹脂組成物の温度の低下に伴う圧力の低減速度よりも大きな第1の速度で低減させる工程と、
さらに、該キャビティの容積を拡大して、該紙微粉体含有熱可塑性樹脂組成物の圧力を第1の速度よりも小さな第2の速度で低減させる工程と、
該紙微粉体含有熱可塑性樹脂組成物の温度が、該熱可塑性樹脂のガラス転位温度Tgに70℃を加えた温度以下の温度(LT≦Tg+70)になる前に、該キャビティの容積を縮小して、該紙微粉体含有熱可塑性樹脂組成物の圧力を増加させる工程とを備えることを特徴とする紙微粉体含有樹脂成形体の製造方法。 - 請求項8記載の紙微粉体含有樹脂成形体の製造方法において、前記超臨界状態の流体は、二酸化炭素または窒素であることを特徴とする紙微粉体含有樹脂成形体の製造方法。
- 請求項8記載の紙微粉体含有樹脂成形体の製造方法において、前記熱可塑性樹脂は、ポリエチレン、ポリプロピレン、ポリエステル、ポリ乳酸、熱可塑性エラストマー、ポリスチレン、ABS樹脂からなる群から選択される1種の樹脂であることを特徴とする紙微粉体含有樹脂成形体の製造方法。
- 請求項8記載の紙微粉体含有樹脂成形体の製造方法において、前記紙微粉体は、新聞紙、雑誌、包装紙、段ボール、OA用紙からなる群から選択される1種以上の古紙を原料として微粉砕されたものであることを特徴とする紙微粉体含有樹脂成形体の製造方法。
- 請求項8記載の紙微粉体含有樹脂成形体の製造方法において、前記超臨界状態の流体を含浸する前に、付香成分を混合する工程を備えることを特徴とする紙微粉体含有樹脂成形体の製造方法。
- 請求項12記載の紙微粉体含有樹脂成形体の製造方法において、前記付香成分は、ヒノキチオール、トロポノイド、α−ツヤプリシン、γ−ツヤプリシン、β−ドラブリン、モノテルペン炭化水素類、モノテルペンアルコール類、フェノール類、フェノールメチルエーテル類、セキステルペン炭化水素類、セキステルペンアルコール類、ケトン類、ラクトン類、カルボン酸、ジテルペンアルコール、アルデヒド、エステル、オキサイド、アンモニア、酢酸、酪酸、イソ吉草酸、アミノ酸、有機酸、カテキン、脂肪酸からなる群から選択される1種以上の化合物であることを特徴とする紙微粉体含有樹脂成形体の製造方法。
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JP6290588B2 (ja) * | 2013-10-23 | 2018-03-07 | 株式会社シミズオクト | 芝養生カバー |
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