EP0879269A1 - Colles thermofusibles a base de copolymeres a fonctions epoxydes - Google Patents
Colles thermofusibles a base de copolymeres a fonctions epoxydesInfo
- Publication number
- EP0879269A1 EP0879269A1 EP97947087A EP97947087A EP0879269A1 EP 0879269 A1 EP0879269 A1 EP 0879269A1 EP 97947087 A EP97947087 A EP 97947087A EP 97947087 A EP97947087 A EP 97947087A EP 0879269 A1 EP0879269 A1 EP 0879269A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- copolymer
- meth
- acrylate
- ethylene
- hot
- 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- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J123/04—Homopolymers or copolymers of ethene
- C09J123/08—Copolymers of ethene
- C09J123/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C09J123/0869—Acids or derivatives thereof
- C09J123/0884—Epoxide containing esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J123/04—Homopolymers or copolymers of ethene
- C09J123/08—Copolymers of ethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
- C08L91/06—Waxes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives 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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/062—Copolymers with monomers not covered by C09J133/06
- C09J133/068—Copolymers with monomers not covered by C09J133/06 containing glycidyl groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
- C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
Definitions
- the present invention relates to a hot-melt adhesive based on copolymers with epoxy functions and more particularly those based on a copolymer of ethylene and of a monomer with an epoxy function, this monomer being capable of being grafted or copolymerized.
- Hot melt adhesives are thermoplastic materials which are solid at room temperature and which, on heating, become viscous liquids. These viscous liquids are applied to a first substrate and then covered with a second surface. By cooling, an adhesion is obtained between the substrate and the second surface.
- the open time is the time during which the adhesive which has been applied to a substrate which is at room temperature remains tacky, that is to say during which the second surface can be applied and by cooling obtaining adhesion between the substrate and the second surface.
- the setting time is the time necessary for the adhesion between the substrate and the second surface after their junction to reach a value sufficient to maintain their intimate junction.
- the adhesion can still change over time if the adhesive contains crosslinkable functions, for example, isocyanate functions crosslinkable at ambient humidity.
- crosslinkable functions for example, isocyanate functions crosslinkable at ambient humidity.
- hotmelt adhesives are also characterized by their shear strength as a function of temperature (SAFT test: SHEAR ADHESION FAILURE TEMPERATURE).
- thermoplastic polymer - responsible for good mechanical and thermal properties
- tackifying resin which is involved in adhesion, hot tackiness, fluidity and wettability.
- a number of additives such as waxes, stabilizers, fillers are most often added thereto. Waxes (for example paraffins) make it possible to adjust the fluidity, the open time and the setting time.
- the most widely used thermoplastic polymers are ethylene-vinyl acetate copolymers (hereinafter called EVA), ethylene- (meth) alkyl acrylate, poly- ⁇ -atactic olefin (APAO), thermoplastic rubber, and others.
- Tackifying resins mainly belong to three main families: rosins (and their derivatives), terpene resins and petroleum-based resins (aliphatic, aromatic, and others).
- EP 547,798, US 4,874,804 and US 5,242,980 describe such hot-melt adhesives based on ethylene-n-butyl acrylate copolymers.
- EP 380 379 and EP 600 767 describe hot-melt adhesives crosslinkable with humidity based on a prepolymer with free isocyanate functions.
- US 5,242,980 describes hot-melt crosslinkable adhesives consisting of a mixture of an ethylene copolymer having carboxylic acid functions and of a crosslinker having at least two epoxide functions such as for example the diglycidyl ether of bisphenol A. The crosslinker must be encapsulated to avoid premature crosslinking during the heating of the adhesive to apply it to the substrate.
- adhesives having improved properties compared to adhesives based on ethylene- (meth) acrylate copolymers can be obtained by using ethylene copolymers and comprising epoxide units, in particular for the same temperature the peel strength on aluminum for an adhesive based on an ethylene-butyl acrylate-glycidyl methacrylate copolymer is higher than that of an adhesive based on an ethylene-butyl acrylate copolymer.
- the present invention relates to a hot-melt adhesive based on a copolymer (A) comprising patterns:
- vinyl esters mention may be made of vinyl esters of saturated carboxylic acids having from 2 to 6 carbon atoms such as vinyl acetate or vinyl propionate.
- alkyl (meth) acrylates of those whose alkyl group has from 1 to 10 carbon atoms such as methyl (meth) acrylate, ethyl (meth) acrylate, (meth) n-butyl acrylate, isobutyl (meth) acrylate and 2-ethyl-hexyl (meth) acrylate.
- n-butyl acrylate is used.
- Examples of unsaturated epoxides which can be used as constituents of polymer (A) are in particular: - aliphatic glycidyl esters and ethers such as allylglycidylether, vinylglycidylether, glycidyl maleate and itaconate, acrylate and methacrylate glycidyle, and, - alicyclic glycidyl esters and ethers such as 2-cyclohexene-1-glycidylether, cyclohexene-4,5-diglycidylcarvboxylate, cyclohexene-4-glycidyl carboxylate, 5-norbornene-2-methyl-2-glycidyl carboxylate and endocis - bicyclo (2,2, 1) -5-heptene-2,3-diglycidyl dicarbo-xylate.
- the unsaturated epoxide may be copolymerized with ethylene and the other
- glycidyl methacrylate is used.
- the amount of unsaturated epoxide can represent up to 10% by weight of the copolymer (A) advantageously 0.1 to 8% and preferably 0.5 to 5% [the percentages and the parts in the present text are by weight except otherwise indicated].
- the amount of comonomer can represent 0 to 50% of the copolymer (A) and preferably 25 to 40%.
- the melt index (or Melt Index MI) can be arbitrary provided that a hot-melt adhesive can be formulated and that the adhesive thus formulated has a measured BROOKFIELD viscosity (at 170 ° C. under the following conditions: Needle 27 at 10 turns / minute according to ASTM D 3236) between 1,000 and 10,000 mPa.s and preferably between 2,000 and 8,000.
- it can be between 0, 1 and 1,500, preferably between 50 and 900 (g / 10 minutes at 190 ° C under 2.1 6 kg ASTM D 1 238).
- the softening point of (A), also called ball-ring temperature, and measured according to standard ASTM E28 can be between 60 and 110 ° C. and advantageously between 70 and 90 ° C.
- the copolymer (A) can be a mixture of a polymer (B) which is a copolymer of ethylene and of at least one monomer chosen from vinyl esters and (meth) alkyl acrylates and a polymer (A1) which is a copolymer of
- the vinyl esters and the alkyl (meth) acrylates can be chosen from the monomers already mentioned above. These monomers can be the same in the polymers (AU and (B).
- the polymers (AU and (B) may be any provided that the contents of epoxide and MI are advantageously within the ranges mentioned for (A).
- the polymers (B) and the copolymers (A) in which the epoxide is not grafted can be produced by radical polymerization between 500 and 2800 bars in the presence of a free radical initiator such as a peroxide.
- copolymers (A) in which the epoxide is grafted they can be prepared, for example, starting from a copolymer of ethylene and optionally a monomer chosen from vinyl esters and (meth) acrylates d alkyl which is brought into contact with the unsaturated epoxide in the presence of an initiator such as a peroxide. This can be done in the molten state or in a solvent.
- the copolymer (A) is a copolymer of ethylene, of an alkyl (meth) acrylate in which the alkyl group has from 1 to 4 carbon atoms and of glycidyl methacrylate comprising 25 to 35% of (meth ) acrylate and 0.8 to 5% epoxide and having a Melt Index between 1 80 and 250.
- the alkyl (meth) acrylate is n-butyl acrylate.
- the adhesives of the invention can also contain one or more tackifying resins, waxes, plasticizers, fillers and stabilizers.
- Suitable tackifying resins are, for example, rosin, rosin esters, hydrogenated rosin, polyterpenes and derivatives, aromatic or aliphatic petroleum resins, hydrogenated cyclic resins. These resins typically have a ring bead temperature between 25 ° C and 180 ° C and preferably between 50 ° C and 135 ° C.
- the amount of tackifying resin can be from 50 to 180 parts per 100 parts of copolymer (A) and preferably 100 to 150 parts.
- the waxes can be recovered during the refining of petroleum fractions. These are, for example, waxes consisting essentially of paraffinic hydrocarbons and containing sufficient quantities of branched, cyclic and aromatic hydrocarbons to be much less crystalline than paraffins. It is also possible to use synthetic waxes such as FISCHER TROPSCH waxes.
- the paraffin waxes used in the adhesives of the invention have a melting temperature above 50 ° C and preferably between 60 ° C and 70 ° C.
- the amount of wax can be between 30 and 80 parts per 100 parts of copolymer (A).
- compositions include 1 20 to 1 30 parts of tackifying resin and 45 to 65 parts of wax per 100 parts of copolymer (A).
- the plasticizers which can be used in the adhesives of the invention are, for example, aromatic or naphthenic paraffinic mineral oils. They are essentially used to lower the viscosity and to provide tack.
- the amount of plasticizer can be between 10 and 30 parts per 100 parts of copolymer (A).
- fillers of silica, alumina, glass, glass beads, calcium carbonates, fibers and metal hydroxides. These fillers must not reduce the tack or the mechanical properties of the adhesive after its application.
- the quantity of fillers can represent up to 100 parts per 100 parts of copolymer (A).
- the ring bead temperature of the adhesives of the invention is advantageously between 50 ° C and 100 ° C and preferably 60 ° C and 80 ° C.
- the cloud point of the adhesives of the invention is less than 180 ° C. and advantageously less than 65 ° C.
- the cloud point is determined as follows: the glue is heated to 175 ° C. and a drop is deposited on the bulb of an ASTM thermometer, then the temperature at which the cloud appears during cooling is noted.
- a high cloud point means an adhesive made up of incompatible ingredients and which therefore tends to separate into several phases during the various heating and cooling cycles during its application.
- the hot-melt adhesives of the invention are prepared by mixing in the molten state at temperatures between 130 ° C. and 200 ° C. until a homogeneous mixture is obtained. The mixing time can be of the order of 30 minutes to 3 hours. Usual devices are used for thermoplastics such as extruders, cylinders, Banbury or Brabender mixers.
- LOTADER A 28% n-butyl acrylate, 1% glycidyl methacrylate and the balance of ethylene and Ml 1,75 (190 ° C-2.1 6 kg) called LOTADER A. It was formulated in the following proportions:
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9614452 | 1996-11-26 | ||
FR9614452 | 1996-11-26 | ||
PCT/FR1997/002077 WO1998023698A1 (fr) | 1996-11-26 | 1997-11-18 | Colles thermofusibles a base de copolymeres a fonctions epoxydes |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0879269A1 true EP0879269A1 (fr) | 1998-11-25 |
Family
ID=9498024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97947087A Withdrawn EP0879269A1 (fr) | 1996-11-26 | 1997-11-18 | Colles thermofusibles a base de copolymeres a fonctions epoxydes |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0879269A1 (fr) |
JP (1) | JP2000505837A (fr) |
KR (1) | KR19990082035A (fr) |
CN (1) | CN1214071A (fr) |
AU (1) | AU5226398A (fr) |
CA (1) | CA2244972A1 (fr) |
WO (1) | WO1998023698A1 (fr) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000144082A (ja) * | 1998-11-16 | 2000-05-26 | Minnesota Mining & Mfg Co <3M> | 熱硬化性接着剤組成物、接着剤、および接着剤の製造方法 |
AU2002364409A1 (en) * | 2001-11-29 | 2003-06-10 | Atofina | Thermoformable multilayer film based on acrylic polymer for protecting substrates and resulting objects |
CA2502137A1 (fr) * | 2002-10-29 | 2004-05-13 | Kaneka Corporation | Epaississant de resine polyester thermoplastique, composition de resine polyester thermoplastique contenant l'epaississant et objet moule obtenu |
AR056299A1 (es) * | 2005-04-04 | 2007-10-03 | Du Pont | Mezclas de copolimeros de acrilato de etileno con cera etilenica para modificacion de asfalto |
US20070023141A1 (en) * | 2005-07-29 | 2007-02-01 | Tyco Electronics Corporation | Hot melt adhesive for PTFE |
KR100751946B1 (ko) * | 2007-01-18 | 2007-08-27 | 구자은 | 논스틱 점착제 조성물 |
CN102115642B (zh) * | 2010-12-31 | 2013-01-16 | 广州鹿山新材料股份有限公司 | 一种能简化太阳能电池封装结构的eva胶膜 |
JP5858576B2 (ja) | 2011-04-21 | 2016-02-10 | 東洋ゴム工業株式会社 | 積層研磨パッド用ホットメルト接着剤シート、及び積層研磨パッド用接着剤層付き支持層 |
JP5893479B2 (ja) | 2011-04-21 | 2016-03-23 | 東洋ゴム工業株式会社 | 積層研磨パッド |
EP4245810A3 (fr) | 2015-08-07 | 2023-09-27 | Dow Global Technologies LLC | Asphalte modifié à l'aide d'acide phosphoreux |
CN116355557B (zh) * | 2023-03-16 | 2024-01-26 | 广东壹诺科技股份有限公司 | 一种低温热熔胶及其制备方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1309748A (en) * | 1969-05-08 | 1973-03-14 | Ici Ltd | Window glazing assemblies |
JPS61168680A (ja) * | 1985-01-21 | 1986-07-30 | Nippon Telegr & Teleph Corp <Ntt> | 光フアイバ接続部補強用接着剤 |
ATE86645T1 (de) * | 1986-01-29 | 1993-03-15 | Fuller H B Licensing Financ | Durch waerme schmelzbarer, einen zusatz enthaltender klebstoff. |
-
1997
- 1997-11-18 CN CN97193171A patent/CN1214071A/zh active Pending
- 1997-11-18 KR KR1019980705755A patent/KR19990082035A/ko not_active Application Discontinuation
- 1997-11-18 JP JP10524345A patent/JP2000505837A/ja active Pending
- 1997-11-18 AU AU52263/98A patent/AU5226398A/en not_active Abandoned
- 1997-11-18 EP EP97947087A patent/EP0879269A1/fr not_active Withdrawn
- 1997-11-18 CA CA002244972A patent/CA2244972A1/fr not_active Abandoned
- 1997-11-18 WO PCT/FR1997/002077 patent/WO1998023698A1/fr not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO9823698A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1998023698A1 (fr) | 1998-06-04 |
KR19990082035A (ko) | 1999-11-15 |
JP2000505837A (ja) | 2000-05-16 |
CA2244972A1 (fr) | 1998-06-04 |
CN1214071A (zh) | 1999-04-14 |
AU5226398A (en) | 1998-06-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5919295B2 (ja) | 接着剤組成物およびその使用 | |
US4140733A (en) | Polyethylene-based bookbinding hot-melt adhesive | |
US5095046A (en) | Hot melt adhesive of ethylene/unsaturated acid copolymer and epoxy crosslinker | |
EP0879269A1 (fr) | Colles thermofusibles a base de copolymeres a fonctions epoxydes | |
JPH08500134A (ja) | 熱可塑性熱溶融接着剤 | |
FR2836480A1 (fr) | Adhesifs thermofusibles a base de copolymeres greffes a blocs polyamides | |
US5331049A (en) | Water-curable, hot melt adhesive composition | |
CA2151573C (fr) | Colles thermofusibles a base de copolymeres ethylene -(meth)acrylate | |
JPH09503803A (ja) | 包装に使用するための変性ポリエチレンベースのホットメルト接着剤 | |
US4497936A (en) | Elastomer-ethylene copolymer hot melt systems | |
US5242980A (en) | Ethylene-unsaturated alcohol or acid copolymer and epoxy crosslinker | |
CA2186787C (fr) | Compositions de bitumes | |
EP2855590B1 (fr) | Composition polymère | |
EP0629228A1 (fr) | Adhesifs thermofusibles pour pvc presentant une bonne activite a des temperatures elevees | |
JPH03504987A (ja) | 接着剤組成物 | |
EP0252795A1 (fr) | Systèmes pour adhésifs thermofusibles réticulables, leur préparation et procédé de collage correspondant | |
US5041492A (en) | Hot melt adhesive | |
EP0905211B1 (fr) | Adhésif sensible à la pression et applicable à chaud | |
EP2459602B1 (fr) | Polymeres olefiniques porteurs de groupes associatifs et adhesifs les comprenant | |
WO2004067668A1 (fr) | Composition adhesive thermofusible à base de polyolefines et de copolyamides a tenue thermique amelioree | |
JPWO2018012593A1 (ja) | 接着剤組成物 | |
WO1999025785A1 (fr) | Adhesif thermofusible a base d'un copolymere de l'ethylene et d'un (meth)acrylate d'alkyle | |
WO2024046602A1 (fr) | Compositions adhésives thermofusibles à base de polypropylène | |
WO2022045165A1 (fr) | Composition de résine de propylène |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19980721 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE |
|
17Q | First examination report despatched |
Effective date: 19990720 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ATOFINA |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20001002 |