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A platform for research: civil engineering, architecture and urbanism
SEALANT SYSTEM FOR CHLORINATED WATER POOLS
The invention is directed to a method for adhesively sealing a joint or a surface in or on a building structure that is in contact with chlorinated water, comprising the steps:a) applying a primer composition P onto the surface or into the joint to be sealed;b) waiting for primer composition P to be cured;c) applying a moisture-curable sealant composition S onto the cured primer composition P, thus sealing the joint or the surface; andd) curing the moisture-curable sealant composition S by means of moisture; whereinsaid primer composition P comprises:- at least one polyol and at least one polyisocyanate, or a polyurethane reaction product thereof,- preferably at least one organosilane having hydrolysable alkoxysilane groups and having at least one functional group selected from glycidoxyalkyl, isocyanatoalkyl, aminoalkyl, or mercaptoalkyl groups,- preferably at least one polyurethane curing catalyst,- at least one organic solvent;and whereinsaid moisture-curable sealant composition S comprises:- between 10 and 60 wt.-%, based on the total composition S, of at least one organic polymer having hydrolysable silane groups,- optionally up to 30 wt.-%, based on the total composition, of at least one plasticizer,- optionally between 0.1 and 5 wt.-%, based on the total composition, of at least one monomeric or oligomeric amino-functional alkoxysilane,- at least one silane curing catalyst.The method yields a sealed joint or surface that retains adhesion and resists degradation when in contact with chlorinated water, such as in swimming pools.
SEALANT SYSTEM FOR CHLORINATED WATER POOLS
The invention is directed to a method for adhesively sealing a joint or a surface in or on a building structure that is in contact with chlorinated water, comprising the steps:a) applying a primer composition P onto the surface or into the joint to be sealed;b) waiting for primer composition P to be cured;c) applying a moisture-curable sealant composition S onto the cured primer composition P, thus sealing the joint or the surface; andd) curing the moisture-curable sealant composition S by means of moisture; whereinsaid primer composition P comprises:- at least one polyol and at least one polyisocyanate, or a polyurethane reaction product thereof,- preferably at least one organosilane having hydrolysable alkoxysilane groups and having at least one functional group selected from glycidoxyalkyl, isocyanatoalkyl, aminoalkyl, or mercaptoalkyl groups,- preferably at least one polyurethane curing catalyst,- at least one organic solvent;and whereinsaid moisture-curable sealant composition S comprises:- between 10 and 60 wt.-%, based on the total composition S, of at least one organic polymer having hydrolysable silane groups,- optionally up to 30 wt.-%, based on the total composition, of at least one plasticizer,- optionally between 0.1 and 5 wt.-%, based on the total composition, of at least one monomeric or oligomeric amino-functional alkoxysilane,- at least one silane curing catalyst.The method yields a sealed joint or surface that retains adhesion and resists degradation when in contact with chlorinated water, such as in swimming pools.
SEALANT SYSTEM FOR CHLORINATED WATER POOLS
DICHTUNGSSYSTEM FÜR CHLORIERTE WASSERBECKEN
SYSTÈME D'ÉTANCHÉITÉ POUR PISCINES D'EAU CHLORÉE
ALVES DOS SANTOS FLAVIANE (author) / KNEPPER JEFFREY (author) / BORONG MARIE (author)
2022-10-26
Patent
Electronic Resource
English
IPC:
C08G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
C04B
Kalk
,
LIME
/
C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
,
Massen auf Basis makromolekularer Verbindungen
/
C09K
Materialien für Anwendungen, soweit nicht anderweitig vorgesehen
,
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR
/
E04H
Gebäude oder ähnliche Bauwerke für besondere Zwecke
,
BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES