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1. WO1997026290 - ONE-PART, LOW VISCOSITY, MOISTURE CURABLE COMPOSITION

Publication Number WO/1997/026290
Publication Date 24.07.1997
International Application No. PCT/US1997/000341
International Filing Date 13.01.1997
Chapter 2 Demand Filed 15.08.1997
IPC
C08G 18/10 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
08Processes
10Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
C09J 175/00 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
175Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
CPC
C08G 18/10
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
08Processes
10Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
C08G 2190/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
2190Compositions for sealing or packing joints
C09J 175/00
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIAL AS ADHESIVES
175Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
Applicants
  • TREMCO, INC. [US]/[US]
Inventors
  • DEPOMPEI, Michael, F.
  • JANOSKI, Ronald, J.
Agents
  • LONGMUIR, Jeanne, E.
Priority Data
08/585,82616.01.1996US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ONE-PART, LOW VISCOSITY, MOISTURE CURABLE COMPOSITION
(FR) COMPOSITION DURCISSANT A L'HUMIDITE, A FAIBLE VISCOSITE ET EN UNE SEULE PARTIE
Abstract
(EN)
A one-part, low viscosity, moisture curable composition which exhibits excellent shelf stability in the absence of water, but which quickly cures at ambient conditions upon exposure to moisture in the air is a substantially anhydrous mixture containing an acetoacetate functional compound and a polyisocyanate functional compound. The composition can be suitably formulated for use as an ambient temperature, moisture curable adhesive, sealant or coating composition. The acetoacetate functional compounds have a relatively low viscosity as compared with conventional isocyanate functional compounds and thereby reduce or eliminate the need for plasticizers, organic solvents, or both. The cure chemistry of the composition simultaneously consumes and generates moisture at approximately the same rate thereby facilitating rapid cure under even low humidity conditions, and allows for efficient and facile curing of even thick layers of the composition.
(FR)
L'invention a pour objet une composition durcissant à l'humidité, à faible viscosité et en une seule partie, présentant une durée de conservation excellente en l'absence d'eau, mais qui se durcit rapidement lorsqu'elle est exposée à l'humidité de l'air ambiant. Il s'agit d'un mélange essentiellement anhydre contenant un composé d'acétoacétate actif et un composé de polyisocyanate actif. La composition peut être formulée de polyisocyanate. La composition peut être formulée de façon à pouvoir être utilisée en tant que matériau d'étanchéité, de revêtement ou adhésif, durcissant à l'humidité et à la température ambiante. Les composés d'acétoacétate actifs ont une viscosité relativement faible si on les compare aux composés d'isocyanate actifs de type classique, ce qui réduit ou élimine le besoin soit en plastifiants, soit en solvants organiques, soit les deux à la fois. Le processus chimique de durcissement de cette composition consomme de l'humidité en même temps qu'il en crée, et ce, à peu près au même rythme, ce qui favorise la rapidité du durcissement, même dans des conditions de faible humidité, et permet d'obtenir un durcissement efficace et facile même si ladite composition se présente en couches épaisses.
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