IT1035789B - Schiuma uretanica che assorbe energia d urto in particolare per paraurti di autoveicoli - Google Patents

Schiuma uretanica che assorbe energia d urto in particolare per paraurti di autoveicoli

Info

Publication number
IT1035789B
IT1035789B IT7549675A IT4967575A IT1035789B IT 1035789 B IT1035789 B IT 1035789B IT 7549675 A IT7549675 A IT 7549675A IT 4967575 A IT4967575 A IT 4967575A IT 1035789 B IT1035789 B IT 1035789B
Authority
IT
Italy
Prior art keywords
absorbes
bumpers
vehicles
impact energy
urethane foam
Prior art date
Application number
IT7549675A
Other languages
English (en)
Original Assignee
Mccord Corp
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 Mccord Corp filed Critical Mccord Corp
Application granted granted Critical
Publication of IT1035789B publication Critical patent/IT1035789B/it

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Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/34Chemical features in the manufacture of articles consisting of a foamed macromolecular core and a macromolecular surface layer having a higher density than the core
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B60R19/22Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact containing mainly cellular material, e.g. solid foam
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40High-molecular-weight compounds
    • C08G18/63Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers
    • C08G18/632Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers onto polyethers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/6552Compounds of group C08G18/63
    • C08G18/6558Compounds of group C08G18/63 with compounds of group C08G18/32 or polyamines of C08G18/38
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/6552Compounds of group C08G18/63
    • C08G18/6558Compounds of group C08G18/63 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/6564Compounds of group C08G18/63 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/6576Compounds of group C08G18/69
    • C08G18/6582Compounds of group C08G18/69 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/6588Compounds of group C08G18/69 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72Polyisocyanates or polyisothiocyanates
    • C08G18/80Masked polyisocyanates
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72Polyisocyanates or polyisothiocyanates
    • C08G18/80Masked polyisocyanates
    • C08G18/8003Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen
    • C08G18/8006Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32
    • C08G18/8009Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32 with compounds of C08G18/3203
    • C08G18/8035Masked aromatic polyisocyanates not provided for in one single of the groups C08G18/8019 and C08G18/8029
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B60R2019/186Additional energy absorbing means supported on bumber beams, e.g. cellular structures or material
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00Foam properties
    • C08G2110/0041Foam properties having specified density
    • C08G2110/0058≥50 and <150kg/m3
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00Foam properties
    • C08G2110/0041Foam properties having specified density
    • C08G2110/0066≥ 150kg/m3
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00Foam properties
    • C08G2110/0083Foam properties prepared using water as the sole blowing agent
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04Polyurethanes
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/14Plastic and nonmetallic article shaping or treating: processes forming integral skin on a foamed product
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/23Sheet including cover or casing
    • Y10T428/233Foamed or expanded material encased
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/249921Web or sheet containing structurally defined element or component
    • Y10T428/249953Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249978Voids specified as micro
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/249921Web or sheet containing structurally defined element or component
    • Y10T428/249953Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249981Plural void-containing components
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/249921Web or sheet containing structurally defined element or component
    • Y10T428/249953Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249987With nonvoid component of specified composition
    • Y10T428/249991Synthetic resin or natural rubbers
    • Y10T428/249992Linear or thermoplastic

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Laminated Bodies (AREA)
IT7549675A 1974-06-21 1975-05-19 Schiuma uretanica che assorbe energia d urto in particolare per paraurti di autoveicoli IT1035789B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US48149874A 1974-06-21 1974-06-21

Publications (1)

Publication Number Publication Date
IT1035789B true IT1035789B (it) 1979-10-20

Family

ID=23912164

Family Applications (1)

Application Number Title Priority Date Filing Date
IT7549675A IT1035789B (it) 1974-06-21 1975-05-19 Schiuma uretanica che assorbe energia d urto in particolare per paraurti di autoveicoli

Country Status (8)

Country Link
US (1) US4116893A (it)
JP (1) JPS5337277B2 (it)
AU (1) AU474960B2 (it)
DE (2) DE2527399A1 (it)
FR (1) FR2330707A1 (it)
GB (1) GB1500976A (it)
IT (1) IT1035789B (it)
SE (1) SE415022B (it)

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DE2737670A1 (de) * 1977-08-20 1979-03-01 Bayer Ag Verfahren zur herstellung von schaumstofformkoerper
DE2806215A1 (de) * 1978-02-14 1979-08-16 Bayer Ag Verfahren zur herstellung von formschaumstoffen auf polyisocyanat-basis
US4259028A (en) * 1978-04-17 1981-03-31 Efficiency Production, Inc. Water and debris impermeable trench box panel
FR2436154A2 (fr) * 1978-09-15 1980-04-11 Mccord Corp Mousse d'urethanne absorbant bien les chocs, et pare-chocs la contenant
JPS55155936A (en) * 1979-05-21 1980-12-04 Aisin Seiki Co Ltd Bumper for vehicle
JPS5636553U (it) * 1979-08-29 1981-04-08
JPS5766047A (en) * 1980-10-06 1982-04-22 Nissan Motor Co Ltd Bumper with cushion
DE3103564A1 (de) * 1981-02-03 1982-08-26 Bayer Ag, 5090 Leverkusen Gel-polster, verfahren zu deren herstellung und deren verwendung
DE3103499A1 (de) * 1981-02-03 1982-08-26 Bayer Ag, 5090 Leverkusen Wirkstoffhaltige gelmassen mit depotwirkung auf basis einer polyurethanmatrix und hoehermolekularen polyolen, sowie ein verfahren zu ihrer herstellung
US4616866A (en) * 1983-12-30 1986-10-14 Michael Ladney, Jr. Vehicle bumper
JPS60250941A (ja) * 1984-05-29 1985-12-11 Bridgestone Corp ポリウレタンフオ−ム熱圧縮成型体の製造方法
JPS6448191U (it) * 1987-04-17 1989-03-24
US4891395A (en) * 1988-05-24 1990-01-02 Arco Chemical Technology, Inc. High styrene content, stable polymer using epoxy resin-modified polyols as dispersants
US5000903A (en) * 1989-04-06 1991-03-19 Libbey-Owens-Ford Co. Method of molding plastic products having chemically bonded protective coatings
US5005887A (en) * 1990-04-09 1991-04-09 Davidson Textron Inc. Energy absorbing bumper fastener system
US5040803A (en) * 1990-04-23 1991-08-20 Cieslik David R Cavity sealing arrangement and method
US5192381A (en) * 1990-12-27 1993-03-09 Techstrip Inc. Power door sensing strip
US5216041A (en) * 1990-12-27 1993-06-01 Basf Corporation Energy absorbing, water blown, rigid polyurethane foam
GB9101862D0 (en) * 1991-01-29 1991-03-13 Ici Plc Microcellular polyurethane elastomers
US5389316A (en) * 1991-08-13 1995-02-14 Woodbridge Foam Corporation Process for producing an energy absorbing panel
US5580651A (en) * 1991-08-13 1996-12-03 Woodbridge Foam Corporation Energy absorbing panel
US5248703A (en) * 1992-03-13 1993-09-28 Basf Corporation Rigid polyurethane foams containing lithium salts for energy absorbing applications
US5248704A (en) * 1992-06-04 1993-09-28 Basf Corporation Energy absorbing, water blown, rigid polyurethane foam
US5385375A (en) * 1992-11-23 1995-01-31 General Motors Corporation Reinforced impact beam for a bumper assembly and method of manufacture
US5326417A (en) * 1993-01-14 1994-07-05 Chivas Products Limited Method and apparatus for producing trim panels
US5453455A (en) * 1993-01-25 1995-09-26 Basf Corporation Rigid polyurethane foams containing lithium salts for energy absorbing applications
US5545022A (en) * 1994-02-10 1996-08-13 Shape Corporation Apparatus for manufacturing a vehicle bumper
US5417880A (en) * 1994-10-06 1995-05-23 Miles Inc. Water blown, energy absorbing foams
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FR2744407B1 (fr) * 1996-02-05 1998-04-24 Peugeot Pare-chocs de vehicules automobiles
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US5962089A (en) * 1997-01-31 1999-10-05 Simco Automotive Trim, Inc. Automotive trim panel and method of making same
US5847014A (en) * 1997-04-15 1998-12-08 Bayer Corporation Water blown, energy absorbing foams
FR2775232B1 (fr) * 1998-02-23 2000-05-12 Peguform France Poutre de pare-chocs de vehicule automobile
US6005016A (en) * 1998-10-06 1999-12-21 Bayer Corporation Rigid polyurethane foam based on polyethers of TDA
US6127443A (en) * 1998-11-06 2000-10-03 Bayer Antwerp N.V. Energy management polyurethane rigid foams with high recovery
US6586487B1 (en) * 2000-07-12 2003-07-01 Bayer Corporation Low-density, water blown polyurethane foams for energy-absorbing applications
US6453476B1 (en) 2000-09-27 2002-09-24 Team Wendy, Llc Protective helmet
CN1849234B (zh) 2003-07-03 2011-07-27 沙普公司 结合有热成形能量吸收体的保险杠装置
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US7228723B2 (en) 2004-07-01 2007-06-12 Netshape Energy Management Llc Bumper impact-testing device
US20060029789A1 (en) * 2004-08-05 2006-02-09 Lear Corporation Interior vehicle trim panel having dual density spray elastomer and method for making the same
FR2877295B1 (fr) * 2004-10-29 2008-04-25 Sodikart Sa Kart equipe d'un ensemble de protection comprenant un element lateral coulissant, element lateral et ensemble de protection correspondants
US8466207B1 (en) 2006-03-01 2013-06-18 Sandia Corporation Method for providing a low density high strength polyurethane foam
US20080060127A1 (en) * 2006-09-11 2008-03-13 General Electric Company Patient table with an impact resistance mechanism
CN101605677B (zh) * 2007-02-02 2012-09-19 沙普公司 能量吸收物件及其构造方法以及保险杠***
US20100320780A1 (en) * 2009-06-18 2010-12-23 B Green Innovations, Inc. Composite vehicle bumper using recycled rubber
US8793952B2 (en) * 2009-12-16 2014-08-05 Fatemeh Nassreen Olang Apparatus and methods for application of foam and foam/loosefill insulation systems
US9341775B1 (en) 2013-03-12 2016-05-17 Hrl Laboratories, Llc Thermoplastic reinforced micro-truss materials
CN103707829A (zh) * 2013-12-23 2014-04-09 张广舜 一种汽车缓冲保险杠
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US3632707A (en) * 1969-09-19 1972-01-04 Jefferson Chem Co Inc Molded flexible polyurethane foam
US3795636A (en) * 1972-01-12 1974-03-05 Quaker Oats Co Process for the preparation of polyurethane foams and microcellular elastomers with integral skins and polyol extender system for the preparation thereof
US3939106A (en) * 1973-03-20 1976-02-17 Union Carbide Corporation Energy absorbing polyurethane-polyurea cellular elastomers
CA1015099A (en) * 1973-08-07 1977-08-02 Union Carbide Corporation Polyurethanes and method of production
US3926867A (en) * 1973-10-26 1975-12-16 Dow Chemical Co High resiliency flexible urethane foams
US3907721A (en) * 1973-10-26 1975-09-23 Dow Chemical Co High resiliency, flexible polyurethane foams and crosslinkers for the preparation thereof
US4007139A (en) * 1974-03-04 1977-02-08 The Dow Chemical Company High resiliency, flexible polyurethane foams and crosslinkers for the preparation thereof
JPS5336879B2 (it) * 1974-06-06 1978-10-05
DE2513817C3 (de) * 1975-03-27 1986-11-13 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von Schaumstoff-Formkörpern kompakter Randzone und zelligem Kern
US4020001A (en) * 1975-03-31 1977-04-26 The Goodyear Tire & Rubber Company Diol curative for polyurethane

Also Published As

Publication number Publication date
US4116893A (en) 1978-09-26
SE7507108L (sv) 1975-12-22
DE2559529A1 (de) 1977-04-28
JPS5337277B2 (it) 1978-10-07
SE415022B (sv) 1980-09-01
AU474960B2 (en) 1976-08-05
FR2330707A1 (fr) 1977-06-03
FR2330707B1 (it) 1981-06-12
JPS5118800A (it) 1976-02-14
AU8158475A (en) 1976-08-05
DE2527399A1 (de) 1976-01-02
GB1500976A (en) 1978-02-15

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