WO2013078112A1 - Compositions d'adhésifs et de scellement à base d'eau et à forte teneur en solides - Google Patents

Compositions d'adhésifs et de scellement à base d'eau et à forte teneur en solides Download PDF

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Publication number
WO2013078112A1
WO2013078112A1 PCT/US2012/065783 US2012065783W WO2013078112A1 WO 2013078112 A1 WO2013078112 A1 WO 2013078112A1 US 2012065783 W US2012065783 W US 2012065783W WO 2013078112 A1 WO2013078112 A1 WO 2013078112A1
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WO
WIPO (PCT)
Prior art keywords
composition
polymer
latex
degrees
solids
Prior art date
Application number
PCT/US2012/065783
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English (en)
Inventor
Thomas Kauffman
Original Assignee
Pecora Corporation
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.)
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Publication date
Application filed by Pecora Corporation filed Critical Pecora Corporation
Publication of WO2013078112A1 publication Critical patent/WO2013078112A1/fr

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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
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/04—Homopolymers or copolymers of esters
    • C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
    • C08L33/08—Homopolymers or copolymers of acrylic acid esters

Definitions

  • Latex based sealants are well known and are used as one -part sealants for many interior applications, but have serious limitations for exterior applications. Among the limitations of latex sealants are limited resistance to wash-out (water sensitive during drying), bubbling (due to entrapped water) when applied in hot (>40-45 degrees C) conditions or on hot surfaces, limited elongation and strength (also known as movement capability). Two-part sealants based on polyurethanes are used for more demanding exterior applications due to less water sensitivity than standard latex based sealants and higher elongation but also exhibit some deficiencies such as toxicity (isocyanates and heavy metal catalysts), cost, and potential for break-down by heat and moisture known as reversion. Similar shortcomings exist for latex and polyurethane based adhesives.
  • the present invention provides two-part adhesive and sealant compositions which overcome the existing limitations of latex adhesives and sealants by enabling fast cure and improved early water resistance. Such compositions also overcome the existing limitations of two-part polyurethane systems by enabling the elimination of heavy metal catalysts and isocyanates.
  • the present invention in one aspect, provides a two-part adhesive or sealant composition
  • a two-part adhesive or sealant composition comprising in Part A at least one latex or dispersion polymer with at least about 50% (w/w) solids preferably with a Tg of less than about +20 degrees C, more preferably less than aboutOC, and most preferably less than about -20 degrees C, at least one filler, and at least one amine terminated oligomer or polymer, and further comprising in part B at least one epoxy terminated oligomer or polymer.
  • the composition of the mixture of Part A and Part B cures to an elastomeric adhesive or sealant within about 7 days, the Part A formulation exhibits at least about 85% solids (wt/wt), and the composition of the mixture of Part A and Part B exhibits at least about 88% solids (wt/wt).
  • the composition is formulated wherein the latex or dispersion polymer has at least about 50%> (w/w) solids, preferably with a Tg of less than about +20 degrees C, more preferably less than about 0C, and most preferably less than about -20 degrees C and comprises from about 20 to about 40% of Part A, and the amine terminated oligomer or polymer is a polyetheramine with a molecular weight from about 200 to about 400.
  • a two-part adhesive or sealant composition which comprises in part A at least one latex or dispersion polymer with at least 50% solids (wt/wt), preferably with a Tg of less than about +20 degrees C, more preferably less than about 0 degrees C, and most preferably less than about -20 degrees C wherein the latex or dispersion polymer is an acrylic latex, styrene acrylic latex, or polyurethane dispersion, and at least one filler where the filler is ground or precipitated calcium carbonate, polymeric microspheres, or titanium dioxide, at least one amine terminated oligomer or polymer where the oligomer or polymer is an amine terminated polyether or amine terminated polyamide, and optionally a catalyst, and further comprising in Part B at least one epoxy terminated oligomer or polymer, wherein the epoxy oligomer or polymer is derived from Bisphenol A.
  • the composition of the mixture of Part A and Part B cures to an elastomeric adhesive or sealant within about 7 days at about 25 degrees C/50% RH. In still another aspect of the present invention, the composition of the mixture of Part A and Part B cures to an elastomeric adhesive or sealant within about 3 days at about 25 degrees C/50% RH.
  • the composition of the mixture of Part A and Part B cures to an elastomeric adhesive or sealant within about 1 day at about 25 degrees C/50% RH.
  • a two-part adhesive or sealant composition comprising in Part A at least one latex or dispersion polymer with at least about 50% solids preferably with a Tg of less than about +20degrees C, more preferably less than about 0 degrees C, and most preferably less than about -20 degrees C, at least one filler, and at least one reactive oligomer or polymer, and further comprising in Part B at least one oligomer or polymer which reacts with the reactive oligomer or polymer of Part A.
  • a two-part adhesive or sealant composition comprising in Part A at least one latex or dispersion polymer with at least about 50% solids preferably with a Tg of less than about +20 degrees C, more preferably less than about 0 degrees C, and most preferably less than about -20 degrees C, and at least one filler, and wherein the Part A formulation exhibits at least about 85% solids (wt/wt) and wherein the mixture of Part A and Part B exhibits at least about 88% solids (wt/wt).
  • composition of the mixture of Part A and Part B cures to an elastomeric adhesive or sealant within about 7 days at about 25 degrees C/50% RH.
  • an adhesive or sealant composition comprising at least one latex or dispersion polymer preferably with a Tg of less than about +20 degrees C, more preferably less than 0 degrees C, and most preferably less than about -20 degrees C with at least about 60%> solids (wt/wt), and at least one filler, wherein the formulated adhesive or sealant has greater than about 85% solids (wt/wt), preferably greater than about 88%o solids and most preferably greater than about 90%> solids (wt/wt).
  • a two-part adhesive or sealant composition comprises in Part A at least one latex or dispersion polymer with at least about 50%> solids (w/w), preferably with a Tg of less than about +20 degrees C, more preferably less than about 0 degrees C, and most preferably less than about -20 degrees C, at least one filler, at least one hydroxyl and/or at least one amine terminated oligomer or polymer, and further comprises in Part B at least one isocyanate terminated compound.
  • composition of the mixture of Part A and Part B cures to an elastomeric adhesive or sealant within about 7 days.
  • a two-part adhesive or sealant composition comprises in Part A at least one latex or dispersion polymer with at least about 50% solids (wt/wt), preferably with a Tg of less than about +20 degrees C, more preferably less than about 0 degrees C, and most preferably less than about -20 degrees C where the latex or dispersion polymer is an acrylic latex, styrene acrylic latex, or polyurethane dispersion, at least one filler where the filler is ground or precipitated calcium carbonate, polymeric microspheres, or titanium dioxide, at least one hydroxyl and/or amine terminated oligomer or polymer where the oligomer or polymer is an amine terminated polyether or amine terminated polyamide, and optionally a catalyst, and furthermore comprises in Part B at least one isocyanate terminated compound, and wherein the mixture of Part A and Part B cures to an elastomeric adhesive or sealant within about 7 days at about 25 degrees C/50% RH
  • two-part adhesive and sealants with excellent properties that emulate the performance of two-part polyurethanes, yet without several of the aforementioned drawbacks of polyurethanes, can be made based on latex or dispersion polymers (both containing water) by formulating to a high solids content (low water content) and by utilizing reactive chemistry such as epoxy/amine or acid/base ionic bonding.
  • Such systems also overcome the drawbacks of conventional latex based adhesive and sealants by exhibiting improved wash out resistance and also improved elongation (movement capability).
  • compositions of this invention are two-fold: 1) unusually high solids content for a waterbased (e.g. latex or dispersion based) system and 2) reactive chemistry that complements the traditional film forming "cure" mechanism of waterbased systems. These features result in compositions which have two cure mechanisms; one film formation through “further gradual coalescence” of the latex or dispersion polymers and also the curing of reactive pre -polymers. Such systems are known as inter-penetrating polymer networks.
  • the water-based sealants of this invention have preferably greater than 85% solids (wt/wt), more preferably greater than 88% solids (wt/wt) and most preferably greater than 90%) solids (wt/wt).
  • This high solids content is a key feature and an unexpectedly advantageous aspect of the present invention, enabling fast cure times and improved wash-out resistance.
  • the two-part reactive, water-based systems in accordance with this invention behave unlike traditional waterbased systems and unlike traditional two-part reactive systems.
  • thermoset reaction is most typically the result of the formation of covalent bonds but may also be the result of formation of ionic bonds.
  • compositions of the present invention reach a high degree of strength within days and hence behave much like the reactive systems, yet without the deficiencies noted above. Furthermore, the ratio of activator to base can be adjusted with many of the systems to tailor properties such as work life, cure hardness, and % elongation.
  • Example 1 is intended to be illustrative of preferred embodiments of the present invention, but are in no way intended to be limitative thereof.
  • Example 1 is intended to be illustrative of preferred embodiments of the present invention, but are in no way intended to be limitative thereof.
  • the following (5-aand 5-b) were prepared by blending for about 1 minute by hand in ajar with a spatula and compared to a commercially available water-based sealant.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Sealing Material Composition (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

L'invention concerne une composition d'adhésifs ou de scellement comprenant, dans des modes de réalisation préférés, en partie A au moins un polymère à base d'eau, au moins une matière de charge, au moins un oligomère ou polymère à terminaison amine ou au moins un composé contenant un hydroxyle, et en partie B au moins un composé contenant un époxy ou au moins un composé contenant une isocyanate, le mélange de la partie A et de la partie B durcissant, ce qui permet d'obtenir une matière adhésive ou de scellement élastomère.
PCT/US2012/065783 2011-11-21 2012-11-19 Compositions d'adhésifs et de scellement à base d'eau et à forte teneur en solides WO2013078112A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161562407P 2011-11-21 2011-11-21
US61/562,407 2011-11-21

Publications (1)

Publication Number Publication Date
WO2013078112A1 true WO2013078112A1 (fr) 2013-05-30

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WO (1) WO2013078112A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106854267A (zh) * 2017-01-11 2017-06-16 济南大学 一种通过沉淀聚合制备聚合物弹性微球的方法

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3578548A (en) * 1969-07-14 1971-05-11 Monsanto Co Preformed resinous coverings adhered to architectural surfaces
US4238585A (en) * 1979-08-10 1980-12-09 Thiokol Corporation Aryl amine terminated polysulfide polymers, related compounds and processes for their preparation
US4316979A (en) * 1978-10-23 1982-02-23 Thiokol Corporation Insulating glass sealant and related compositions
US4316967A (en) * 1975-05-05 1982-02-23 The Firestone Tire & Rubber Company Amine terminated polymers and the formation of block copolymers
US4463110A (en) * 1981-02-24 1984-07-31 National Starch And Chemical Corporation Neoprene latex contact adhesives
US4588757A (en) * 1985-02-11 1986-05-13 Desoto, Inc. Aqueous emulsion laminating adhesive
US4740536A (en) * 1985-09-06 1988-04-26 Rohm And Haas Company Water-based binder, coating and adhesive compositions from alkaline-curable latex polymers, epoxies and amines
US4762866A (en) * 1986-03-12 1988-08-09 National Starch And Chemical Corporation Latex adhesive for bonding polyether urethane foam
US5017632A (en) * 1989-12-14 1991-05-21 Rohm And Haas Company Water-based composites with superior cure in thick films, and chemical and shock resistance
US5037700A (en) * 1981-01-19 1991-08-06 National Starch And Chemical Investment Holding Corporation Flexible laminates
US6001907A (en) * 1997-12-15 1999-12-14 Witco Corporation Latex sealants containing epoxysilanes
US20060046068A1 (en) * 2004-09-02 2006-03-02 Barancyk Steven V Multi-component coatings that include polyurea coating layers
US20070224362A1 (en) * 2004-12-20 2007-09-27 Remi Briand Two-part waterborne epoxy coating composition and method

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3578548A (en) * 1969-07-14 1971-05-11 Monsanto Co Preformed resinous coverings adhered to architectural surfaces
US4316967A (en) * 1975-05-05 1982-02-23 The Firestone Tire & Rubber Company Amine terminated polymers and the formation of block copolymers
US4316979A (en) * 1978-10-23 1982-02-23 Thiokol Corporation Insulating glass sealant and related compositions
US4238585A (en) * 1979-08-10 1980-12-09 Thiokol Corporation Aryl amine terminated polysulfide polymers, related compounds and processes for their preparation
US5037700A (en) * 1981-01-19 1991-08-06 National Starch And Chemical Investment Holding Corporation Flexible laminates
US4463110A (en) * 1981-02-24 1984-07-31 National Starch And Chemical Corporation Neoprene latex contact adhesives
US4588757A (en) * 1985-02-11 1986-05-13 Desoto, Inc. Aqueous emulsion laminating adhesive
US4740536A (en) * 1985-09-06 1988-04-26 Rohm And Haas Company Water-based binder, coating and adhesive compositions from alkaline-curable latex polymers, epoxies and amines
US4762866A (en) * 1986-03-12 1988-08-09 National Starch And Chemical Corporation Latex adhesive for bonding polyether urethane foam
US5017632A (en) * 1989-12-14 1991-05-21 Rohm And Haas Company Water-based composites with superior cure in thick films, and chemical and shock resistance
US6001907A (en) * 1997-12-15 1999-12-14 Witco Corporation Latex sealants containing epoxysilanes
US20060046068A1 (en) * 2004-09-02 2006-03-02 Barancyk Steven V Multi-component coatings that include polyurea coating layers
US20070224362A1 (en) * 2004-12-20 2007-09-27 Remi Briand Two-part waterborne epoxy coating composition and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106854267A (zh) * 2017-01-11 2017-06-16 济南大学 一种通过沉淀聚合制备聚合物弹性微球的方法
CN106854267B (zh) * 2017-01-11 2019-06-28 济南大学 一种通过沉淀聚合制备聚合物弹性微球的方法

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