DE2507274A1 - Laminate aus polyaethylenschaum mit anisotroper porenstruktur - Google Patents

Laminate aus polyaethylenschaum mit anisotroper porenstruktur

Info

Publication number
DE2507274A1
DE2507274A1 DE19752507274 DE2507274A DE2507274A1 DE 2507274 A1 DE2507274 A1 DE 2507274A1 DE 19752507274 DE19752507274 DE 19752507274 DE 2507274 A DE2507274 A DE 2507274A DE 2507274 A1 DE2507274 A1 DE 2507274A1
Authority
DE
Germany
Prior art keywords
pore structure
polyethylene
polyethylene foam
anisotropic pore
peroxide
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.)
Withdrawn
Application number
DE19752507274
Other languages
German (de)
English (en)
Inventor
Frank Gerald Dr Kleiner
Richard Muehlbauer
Hans-Heinz Mueller
Hans Radojewski
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Priority to DE19752507274 priority Critical patent/DE2507274A1/de
Priority to AU11134/76A priority patent/AU492315B2/en
Priority to SU762324452A priority patent/SU651677A3/ru
Priority to CH192976A priority patent/CH602319A5/xx
Priority to US05/658,404 priority patent/US4053341A/en
Priority to NL7601646A priority patent/NL7601646A/xx
Priority to IT48155/76A priority patent/IT1053867B/it
Priority to JP51016095A priority patent/JPS5952B2/ja
Priority to CA 246026 priority patent/CA1071086A/en
Priority to PL1976187298A priority patent/PL101380B1/pl
Priority to GB6562/76A priority patent/GB1527162A/en
Priority to SE7601926A priority patent/SE416388B/xx
Priority to ES445311A priority patent/ES445311A1/es
Priority to CS761083A priority patent/CS190524B2/cs
Priority to BE164437A priority patent/BE838712A/xx
Priority to FR7604784A priority patent/FR2301372A1/fr
Publication of DE2507274A1 publication Critical patent/DE2507274A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • 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
    • 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
    • B32B5/18—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 features of a layer of foamed material
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/10—Interconnection of layers at least one layer having inter-reactive properties
    • 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
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/025—Polyolefin
    • 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
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/72—Cured, e.g. vulcanised, cross-linked
    • 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
    • B32B2323/00—Polyalkenes
    • B32B2323/04—Polyethylene
    • 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
    • B32B2605/00—Vehicles
    • B32B2605/003—Interior finishings
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/18—Cross-linking a thermoplastic linear foam during molding
    • 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
    • Y10T428/24—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
    • Y10T428/24992—Density or compression of components
    • 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

Landscapes

  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Laminated Bodies (AREA)
  • Molding Of Porous Articles (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
DE19752507274 1975-02-20 1975-02-20 Laminate aus polyaethylenschaum mit anisotroper porenstruktur Withdrawn DE2507274A1 (de)

Priority Applications (16)

Application Number Priority Date Filing Date Title
DE19752507274 DE2507274A1 (de) 1975-02-20 1975-02-20 Laminate aus polyaethylenschaum mit anisotroper porenstruktur
AU11134/76A AU492315B2 (en) 1975-02-20 1976-02-16 Laminates of polyethylene foam withan anisotropic pore structure
SU762324452A SU651677A3 (ru) 1975-02-20 1976-02-17 Способ изготовлени слоистого материала
CH192976A CH602319A5 (en:Method) 1975-02-20 1976-02-17
US05/658,404 US4053341A (en) 1975-02-20 1976-02-17 Laminates of polyethylene foam with an anisotropic pore structure
NL7601646A NL7601646A (nl) 1975-02-20 1976-02-18 Werkwijze voor het vormen van laminaat van in hoofdzaak lagen van verknoopt opgeschuimd poly- etheen.
IT48155/76A IT1053867B (it) 1975-02-20 1976-02-18 Procedimento.per produrre laminato di espanso polietilenico con struttura porosa anisotropa
JP51016095A JPS5952B2 (ja) 1975-02-20 1976-02-18 ポリエチレンフオ−ム積層品の製造方法
CA 246026 CA1071086A (en) 1975-02-20 1976-02-18 Laminates of polyethylene foam with an anisotropic pore structure
PL1976187298A PL101380B1 (pl) 1975-02-20 1976-02-18 Sposob wytwarzania tworzyw warstwowych ze spienionego polietylenu o anizotropowej strukturze porow
GB6562/76A GB1527162A (en) 1975-02-20 1976-02-19 Laminates of polyethylene foam with an anisotropic pore structure
SE7601926A SE416388B (sv) 1975-02-20 1976-02-19 Sett att framstella laminat av fornetade polyetenskum, som uppvisar anisotrop porstruktur
ES445311A ES445311A1 (es) 1975-02-20 1976-02-19 Procedimiento para la obtencion de espuma de polietileno.
CS761083A CS190524B2 (en) 1975-02-20 1976-02-19 Method of producing laminates
BE164437A BE838712A (fr) 1975-02-20 1976-02-19 Procede pour preparer des stratifies de mousse de polyethylene ayant une structure poreuse anisotrope
FR7604784A FR2301372A1 (fr) 1975-02-20 1976-02-20 Procede pour preparer des stratifies de mousse de polyethylene ayant une structure poreuse anisotrope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752507274 DE2507274A1 (de) 1975-02-20 1975-02-20 Laminate aus polyaethylenschaum mit anisotroper porenstruktur

Publications (1)

Publication Number Publication Date
DE2507274A1 true DE2507274A1 (de) 1976-09-09

Family

ID=5939365

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752507274 Withdrawn DE2507274A1 (de) 1975-02-20 1975-02-20 Laminate aus polyaethylenschaum mit anisotroper porenstruktur

Country Status (15)

Country Link
US (1) US4053341A (en:Method)
JP (1) JPS5952B2 (en:Method)
BE (1) BE838712A (en:Method)
CA (1) CA1071086A (en:Method)
CH (1) CH602319A5 (en:Method)
CS (1) CS190524B2 (en:Method)
DE (1) DE2507274A1 (en:Method)
ES (1) ES445311A1 (en:Method)
FR (1) FR2301372A1 (en:Method)
GB (1) GB1527162A (en:Method)
IT (1) IT1053867B (en:Method)
NL (1) NL7601646A (en:Method)
PL (1) PL101380B1 (en:Method)
SE (1) SE416388B (en:Method)
SU (1) SU651677A3 (en:Method)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2935671A1 (de) * 1978-09-13 1980-04-03 Bakelittfab As Verfahren zur herstellung von formkoerpern aus schaumkunststoff

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA75470B (en) * 1974-06-24 1976-01-28 J Dukees Process and apparatus for the manufacture of plastic sandwich elements
DE7627371U1 (de) * 1976-09-02 1976-12-30 Fa. Carl Freudenberg, 6940 Weinheim Schuheinlage
JPS54125877U (en:Method) * 1978-02-21 1979-09-03
US4136226A (en) * 1978-03-23 1979-01-23 Gilman Richard L Impact-absorbing laminate and method of manufacture thereof
JPS54136024A (en) * 1978-04-10 1979-10-22 Toyota Motor Corp Ceiling panel for automobile and method of producing same
JPS5624289A (en) * 1979-07-31 1981-03-07 Furukawa Electric Co Ltd Adiabatic pipe and its manufacture
DE2945285A1 (de) * 1979-11-09 1981-05-21 Dynamit Nobel Ag, 5210 Troisdorf Bodenmatte, insbesondere fuer kraftfahrzeuge
US4338466A (en) * 1981-04-02 1982-07-06 The United States Of America As Represented By The Secretary Of The Navy Prostaglandin analogs and process of preparation thereof
US4606516A (en) * 1984-05-10 1986-08-19 Willison George R Aircraft protective device
JPS61130041A (ja) * 1984-11-28 1986-06-17 ポリプラスチックス株式会社 寸法安定性の良好な成形品の製造方法
US4851286A (en) * 1986-11-18 1989-07-25 United Foam Plastics Foamed plastic cushioning materials
US5221570A (en) * 1991-09-03 1993-06-22 Cem Gokcen Multilayered coextruded geomembrane
CN1108924C (zh) * 1993-07-19 2003-05-21 三井武田化学株式会社 绝热材料及其生产方法
US5883144A (en) 1994-09-19 1999-03-16 Sentinel Products Corp. Silane-grafted materials for solid and foam applications
US5932659A (en) 1994-09-19 1999-08-03 Sentinel Products Corp. Polymer blend
US5929129A (en) * 1994-09-19 1999-07-27 Sentinel Products Corp. Crosslinked foamable compositions of silane-grafted, essentially linear polyolefins blended with polypropylene
KR960010734A (ko) * 1994-09-19 1996-04-20 존 디. 밤바라 필수 선형 폴리올레핀의 교차- 결합된 발포 구조 및 그 제조방법
US5844009A (en) * 1996-04-26 1998-12-01 Sentinel Products Corp. Cross-linked low-density polymer foam
CA2203595A1 (en) 1996-04-26 1997-10-26 Robert F. Hurley Cross-linked polyolefin tape
US5876813A (en) 1996-07-09 1999-03-02 Senitnel Products Corp Laminated foam structures with enhanced properties
US5882776A (en) * 1996-07-09 1999-03-16 Sentinel Products Corp. Laminated foam structures with enhanced properties
US5938878A (en) * 1996-08-16 1999-08-17 Sentinel Products Corp. Polymer structures with enhanced properties
CA2241609C (en) * 1997-06-26 2009-08-25 Southpac Trust International, Inc. Polymeric material having a cloth-like appearance
EP0922554B1 (en) 1997-12-08 2003-06-25 Dow Deutschland Inc. Multilayer foams, method of production and use
DE10123176C2 (de) * 2001-05-12 2003-08-07 Daimler Chrysler Ag Verfahren zur Herstellung von Sandwichbauteilen mit einer Deckschicht und einer Schaum aufweisenden Kernschicht
US20040001945A1 (en) * 2002-06-27 2004-01-01 Cate Peter J. Composite foam structure having an isotropic strength region and anisotropic strength region
US20040096626A1 (en) * 2002-11-14 2004-05-20 Epoli-Espumas De Polietileno Sa Layered structures with enhanced properties
KR101183912B1 (ko) * 2005-08-25 2012-09-21 토레이 밧데리 세퍼레이터 필름 고도 가이샤 폴리에틸렌 다층 미세 다공막 및 이를 이용한 전지용세퍼레이터 및 전지
EP3456302B8 (en) * 2017-09-15 2020-10-28 Ontex BV Absorbent cores and absorbent articles having anisotropic foam structures
EP3711736A1 (en) * 2019-03-18 2020-09-23 Ontex BVBA Absorbent articles having an anisotropic foam acquisition layer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3098831A (en) * 1959-05-01 1963-07-23 Us Rubber Co Expanded polyethylene and method of making the same
JPS5218232B1 (en:Method) * 1966-02-05 1977-05-20
US3463687A (en) * 1966-04-26 1969-08-26 Gen Tire & Rubber Co Method of producing low density rigid sheets of synthetic plastic
US3608006A (en) * 1966-10-01 1971-09-21 Furukawa Electric Co Ltd Production of foamed polyolefin composite sheet
GB1210637A (en) * 1969-06-21 1970-10-28 Toray Industries Thermoplastic resin foam
DE2365203B2 (de) * 1973-12-31 1977-02-03 Dynamit Nobel Ag, 5210 Troisdorf Herstellen von mehrschichtigen bahnen, platten, formteilen
US3936565A (en) * 1974-05-03 1976-02-03 Hollowform, Inc. Molded plastic article and method
US3968292A (en) * 1974-07-22 1976-07-06 Porvair Limited Water vapor permeable sheet material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2935671A1 (de) * 1978-09-13 1980-04-03 Bakelittfab As Verfahren zur herstellung von formkoerpern aus schaumkunststoff

Also Published As

Publication number Publication date
SE7601926L (sv) 1976-08-23
CH602319A5 (en:Method) 1978-07-31
JPS51106174A (en:Method) 1976-09-20
CS190524B2 (en) 1979-05-31
SU651677A3 (ru) 1979-03-05
NL7601646A (nl) 1976-08-24
SE416388B (sv) 1980-12-22
ES445311A1 (es) 1977-06-01
IT1053867B (it) 1981-10-10
FR2301372A1 (fr) 1976-09-17
BE838712A (fr) 1976-08-19
JPS5952B2 (ja) 1984-01-05
AU1113476A (en) 1977-08-25
PL101380B1 (pl) 1978-12-30
GB1527162A (en) 1978-10-04
US4053341A (en) 1977-10-11
CA1071086A (en) 1980-02-05

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