ES2025217B3 - Composiciones adhesivas para usar sobre sustratos de vinilo. - Google Patents

Composiciones adhesivas para usar sobre sustratos de vinilo.

Info

Publication number
ES2025217B3
ES2025217B3 ES88100470T ES88100470T ES2025217B3 ES 2025217 B3 ES2025217 B3 ES 2025217B3 ES 88100470 T ES88100470 T ES 88100470T ES 88100470 T ES88100470 T ES 88100470T ES 2025217 B3 ES2025217 B3 ES 2025217B3
Authority
ES
Spain
Prior art keywords
adhesive compositions
weight
vinyl substrates
vinyl
substrates
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.)
Expired - Lifetime
Application number
ES88100470T
Other languages
English (en)
Inventor
Paul R Mudge
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.)
National Starch and Chemical Investment Holding Corp
Original Assignee
National Starch and Chemical Investment Holding 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 National Starch and Chemical Investment Holding Corp filed Critical National Starch and Chemical Investment Holding Corp
Application granted granted Critical
Publication of ES2025217B3 publication Critical patent/ES2025217B3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J131/00Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid, or of a haloformic acid; Adhesives based on derivatives of such polymers
    • C09J131/02Homopolymers or copolymers of esters of monocarboxylic acids
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F218/00Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
    • C08F218/02Esters of monocarboxylic acids
    • C08F218/04Vinyl esters
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F218/00Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
    • C08F218/02Esters of monocarboxylic acids
    • C08F218/04Vinyl esters
    • C08F218/08Vinyl acetate
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00Adhesives in the form of films or foils
    • C09J7/20Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22Plastics; Metallised plastics
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00Adhesives in the form of films or foils
    • C09J7/30Adhesives in the form of films or foils characterised by the adhesive composition
    • C09J7/38Pressure-sensitive adhesives [PSA]
    • 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
    • Y10T428/28Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • 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
    • Y10T428/28Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2852Adhesive compositions
    • Y10T428/2878Adhesive compositions including addition polymer from unsaturated monomer
    • 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
    • Y10T428/28Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2852Adhesive compositions
    • Y10T428/2878Adhesive compositions including addition polymer from unsaturated monomer
    • Y10T428/2887Adhesive compositions including addition polymer from unsaturated monomer including nitrogen containing polymer [e.g., polyacrylonitrile, polymethacrylonitrile, etc.]
    • 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
    • Y10T428/28Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2852Adhesive compositions
    • Y10T428/2878Adhesive compositions including addition polymer from unsaturated monomer
    • Y10T428/2891Adhesive compositions including addition polymer from unsaturated monomer including addition polymer from alpha-beta unsaturated carboxylic acid [e.g., acrylic acid, methacrylic acid, etc.] Or derivative thereof
    • 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
    • Y10T428/31504Composite [nonstructural laminate]
    • Y10T428/31855Of addition polymer from unsaturated monomers
    • Y10T428/31909Next to second addition polymer from unsaturated monomers
    • Y10T428/31913Monoolefin polymer
    • Y10T428/3192Next to vinyl or vinylidene chloride polymer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Materials For Medical Uses (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Adhesive Tapes (AREA)
ES88100470T 1987-02-02 1988-01-14 Composiciones adhesivas para usar sobre sustratos de vinilo. Expired - Lifetime ES2025217B3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/009,450 US4753846A (en) 1987-02-02 1987-02-02 Adhesive compositions for use on vinyl substrates

Publications (1)

Publication Number Publication Date
ES2025217B3 true ES2025217B3 (es) 1992-03-16

Family

ID=21737734

Family Applications (1)

Application Number Title Priority Date Filing Date
ES88100470T Expired - Lifetime ES2025217B3 (es) 1987-02-02 1988-01-14 Composiciones adhesivas para usar sobre sustratos de vinilo.

Country Status (11)

Country Link
US (1) US4753846A (es)
EP (1) EP0277516B1 (es)
JP (1) JPS63243188A (es)
AT (1) ATE67771T1 (es)
AU (1) AU588721B2 (es)
CA (1) CA1323128C (es)
DE (1) DE3865030D1 (es)
ES (1) ES2025217B3 (es)
FI (1) FI87796C (es)
GR (1) GR3002789T3 (es)
MY (1) MY103171A (es)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4939220A (en) * 1988-03-17 1990-07-03 National Starch And Chemical Investment Holding Corporation Ethylene vinyl acetate-dioctyl maleate-2-ethylhexyl acrylate interpolymers
US4961993A (en) * 1988-03-17 1990-10-09 National Starch And Chemical Investment Holding Corporation Ethylene vinyl acetate-dioctyl maleate-2-ethylhexyl acrylate interpolymers
US4908268A (en) * 1988-03-17 1990-03-13 National Starch And Chemical Corporation Ethylene vinyl acetate-dioctyl maleate-2-ethylhexyl acrylate interpolymers
US4985488A (en) * 1988-05-20 1991-01-15 Minnesota Mining And Manufacturing Company Pressure-sensitive adhesive having improved adhesion to plasticized vinyl substrates
US5120785A (en) * 1988-10-28 1992-06-09 National Starch And Chemical Investment Holding Corporation Ethylene vinyl acetate polymers for latex caulks
US4943461A (en) * 1989-02-01 1990-07-24 Minnesota Mining And Manufacturing Company Radiation-curable pressure-sensitive adhesive having improved adhesion to plasticized vinyl substrates
JPH0791516B2 (ja) * 1989-04-24 1995-10-04 ナシヨナル・スターチ・アンド・ケミカル・コーポレイシヨン エチレン/ビニルアセテート/ジオクチル‐マレエート/2‐エチルヘキシル‐アクリレート‐共重合体
US5079047A (en) * 1989-05-12 1992-01-07 Minnesota Mining And Manufacturing Company Radiation-curable pressure-sensitive adhesive having improved adhesion to plasticized vinyl substrates
US6084024A (en) 1996-11-12 2000-07-04 Air Products And Chemicals, Inc. Water borne pressure sensitive adhesive compositions derived from copolymers of higher vinyl esters
US6348679B1 (en) 1998-03-17 2002-02-19 Ameritherm, Inc. RF active compositions for use in adhesion, bonding and coating
US6319978B1 (en) * 1998-10-01 2001-11-20 Air Products And Chemicals, Inc. Water borne pressure sensitive vinyl acetate/ethylene adhesive compositions
WO2000078593A1 (en) * 1999-06-17 2000-12-28 Joy Mm Delaware, Inc. Multiple bolting platform improvements
US6649888B2 (en) 1999-09-23 2003-11-18 Codaco, Inc. Radio frequency (RF) heating system
DE102004019433A1 (de) * 2004-04-19 2005-11-10 Basf Ag Haftklebstoff für PVC-Folien

Family Cites Families (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2480551A (en) * 1945-05-30 1949-08-30 Du Pont Hydrolyzed interpolymer of ethylene, vinyl acetate, and diethyl fumarate
US2965617A (en) * 1955-12-29 1960-12-20 Shawinigan Resins Corp Interpolymers of vinyl esters with long chain alkyl esters of maleic acid
NL278859A (es) * 1961-06-21 1900-01-01
US3268357A (en) * 1962-02-27 1966-08-23 Pittsburgh Plate Glass Co Article coated with alkyl acrylatevinyl ester interpolymer containing adhesive
DE1495822C3 (de) * 1964-07-18 1978-12-14 Hoechst Ag, 6000 Frankfurt Verfahren zur Herstellung von Mischpolymerisaten aus Vinylestern und Äthylen
FR1446075A (fr) * 1965-09-01 1966-07-15 Basf Ag Couche de protection et couche intermédiaire adhésive pour polychlorure de vinyle plastifié
GB1123879A (en) * 1966-10-18 1968-08-14 Exxon Research Engineering Co Terpolymer pour point depressant and method of manufacture
US3491070A (en) * 1966-11-25 1970-01-20 Goodrich Co B F 2 - ethylhexyl acrylate - n - octyl acrylamide - methacrylamide / acrylamide terpolymer
DE1720593A1 (de) * 1967-01-02 1971-06-24 Bayer Ag Filmbildende Emulsionen aus Copolymerisaten
CH515941A (de) * 1967-12-07 1971-11-30 Wacker Chemie Gmbh Verfahren zur Mischpolymerisation von Monoolefinen
US3485896A (en) * 1967-12-13 1969-12-23 Goodrich Co B F Pressure sensitive adhesives with improved water resistance
US3501440A (en) * 1968-04-16 1970-03-17 Nippon Carbide Kogyo Kk Process for preparing vinyl chloride/ethylene copolymers
US3723397A (en) * 1968-05-02 1973-03-27 Du Pont Ethylene/vinyl ester/carboxylic acid copolymers
US3639326A (en) * 1968-05-20 1972-02-01 Allied Chem Vinyl terpolymer compositions
BE789659A (fr) * 1969-08-08 1973-02-01 Gulf Research & Dev Cy Nouveaux n-(chlorotertiobutylthiadiazolyl) amides, leur preparation, etleur application comme herbicides
US3917890A (en) * 1969-12-24 1975-11-04 Sidney Levy Composite tape and method of forming the same
US3755237A (en) * 1971-03-15 1973-08-28 Grace W R & Co Vinyl acetate-alpha olefin copolymer compositions
US3969560A (en) * 1972-03-13 1976-07-13 Rohm And Haas Company Copolymers of monounsaturated or diunsaturated polyesters with vinyl monomers
US3828118A (en) * 1972-04-06 1974-08-06 Bunker Ramo Electrical feedthrough assemblies for containment structures having specially controlled environments and method of making
US3971766A (en) * 1972-06-14 1976-07-27 Teijin Limited Pressure-sensitive adhesive and pressure-sensitive adhesive tape or drape
US3823108A (en) * 1972-10-30 1974-07-09 Du Pont Aqueous ethylene terpolymer hydrosol dispersions
DE2253245C3 (de) * 1972-10-30 1983-03-24 Wacker-Chemie GmbH, 8000 München Polymere Haftkleber
US4053269A (en) * 1973-03-14 1977-10-11 Sidney Levy Apparatus for forming a composite tape
US3941735A (en) * 1973-09-26 1976-03-02 Chas. S. Tanner Co. Aqueous emulsion adhesive of a copolymer of an alcohol ether of N-methylol derivative of an allyl carbamate which develops water resistance through cure
US4084035A (en) * 1974-03-29 1978-04-11 Rhone-Poulenc Industries Self-adhesive polyester films of a copolymer of vinyl acetate and maleate diester
US3998997A (en) * 1975-02-26 1976-12-21 The Goodyear Tire & Rubber Company Pressure sensitive adhesives using interpolymer of acrylates, oxypropyl acrylamides and acrylic acid
DE2524230A1 (de) * 1975-05-31 1976-12-16 Basf Ag Verfahren zur herstellung von mischpolymerisaten des aethylens
US4210739A (en) * 1975-09-05 1980-07-01 Stauffer Chemical Company Internally plasticized vinyl chloride copolymer composition
DE2541934A1 (de) * 1975-09-19 1977-03-24 Wacker Chemie Gmbh Verseifungsfeste copolymerdispersionen
JPS5265532A (en) * 1975-11-26 1977-05-31 Hitachi Chem Co Ltd Preparation of pressure sensitive tape
US4076569A (en) * 1976-04-14 1978-02-28 Arnold Buchbinder Process for upgrading plywood panels
JPS6047315B2 (ja) * 1976-12-10 1985-10-21 住友化学工業株式会社 新規なる感圧接着剤
JPS5948047B2 (ja) * 1977-10-25 1984-11-24 住友化学工業株式会社 共重合体エマルジョンおよびそれを有効成分とする感圧接着剤
US4151146A (en) * 1977-12-01 1979-04-24 Celanese Corporation Process for preparing multifunctional acrylate-modified vinyl ester-alkyl acrylate/methacrylate copolymer coagulum-free latex
US4175156A (en) * 1978-05-19 1979-11-20 Usm Corporation Composite film adhesive
DE2822436A1 (de) * 1978-05-23 1979-12-06 Consortium Elektrochem Ind Hydroxylgruppen enthaltende vinylester- und vinylhalogenid-copolymere
GB2030996B (en) * 1978-09-26 1982-12-22 Sumitomo Chemical Co Process for producing aqueous emulsions of vinyl chloride/vinyl ester/ethylene copolymer
JPS55127479A (en) * 1979-03-24 1980-10-02 Nitto Electric Ind Co Ltd Tackifier for surface protection
DE2915887A1 (de) * 1979-04-19 1980-11-06 Wacker Chemie Gmbh Copolymerisate auf der basis von acrylestern, vinylacetat und aethylen
US4273145A (en) * 1979-06-13 1981-06-16 Polymerics, Inc. High molecular weight vinyl acrylic combined with low molecular weight vinyl acetate-maleate for controlled permanent tack and method of making same
US4391853A (en) * 1979-12-10 1983-07-05 The Datak Corporation Methods of making adhesive articles and resulting products
JPS5975056A (ja) * 1982-10-20 1984-04-27 テルモ株式会社 医療用具
DE3242486A1 (de) * 1982-11-18 1984-05-24 Henkel KGaA, 4000 Düsseldorf Filmbildende fuer klebezwecke geeignete dispersionen und deren verwendung als wasseraktivierbare beschichtungen
US4547428A (en) * 1983-03-21 1985-10-15 Monsanto Company Terpolymer processing aid for polyvinyl halide polymers
US4564664A (en) * 1983-08-12 1986-01-14 Avery International Corporation Emulsion-acrylic pressure-sensitive adhesives formed in two step polymerization
US4617454A (en) * 1983-11-03 1986-10-14 General Electric Company Thermal-sensitive insulating composition and method, and article and apparatus incorporating same
US4507429A (en) * 1984-01-12 1985-03-26 Air Products And Chemicals, Inc. Pressure sensitive adhesives with improved shear resistance
US4484574A (en) * 1984-01-25 1984-11-27 Keene Corporation Self-rolled foam tape without release layer and method of making same
DE3446565A1 (de) * 1984-12-20 1986-07-03 Wacker-Chemie GmbH, 8000 München Waermefester haftklebstoff
US4812547A (en) * 1985-12-11 1989-03-14 National Starch & Chemical Corp. Pressure sensitive adhesives comprising ethylene vinyl acetate dioctyl maleate terpolymers
US4692366A (en) * 1986-09-08 1987-09-08 National Starch And Chemical Corporation Flocking adhesives based on eva-maleate copolymers

Also Published As

Publication number Publication date
FI87796B (fi) 1992-11-13
CA1323128C (en) 1993-10-12
DE3865030D1 (de) 1991-10-31
FI880438A (fi) 1988-08-03
JPS63243188A (ja) 1988-10-11
FI880438A0 (fi) 1988-02-01
AU588721B2 (en) 1989-09-21
AU1094888A (en) 1988-08-04
US4753846A (en) 1988-06-28
ATE67771T1 (de) 1991-10-15
EP0277516B1 (en) 1991-09-25
GR3002789T3 (en) 1993-01-25
EP0277516A3 (en) 1989-05-10
EP0277516A2 (en) 1988-08-10
FI87796C (fi) 1993-02-25
MY103171A (en) 1993-04-30

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