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1. WO2011010047 - TWO PART EPOXY ADHESIVE SYSTEM HAVING IMPROVED OPEN TIME

Publication Number WO/2011/010047
Publication Date 27.01.2011
International Application No. PCT/FR2010/051472
International Filing Date 13.07.2010
IPC
C08G 59/66 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
59Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by reaction of epoxy polycondensates with monofunctional low-molecular-weight compounds; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
18Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
40characterised by the curing agents used
66Mercaptans
C09J 163/02 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
163Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
02Polyglycidyl ethers of bis-phenols
CPC
C08G 59/66
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
59Polycondensates containing more than one epoxy group per molecule
18Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; ; e.g. general methods of curing
40characterised by the curing agents used
66Mercaptans
C09J 163/00
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
163Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
Applicants
  • BOSTIK SA [FR]/[FR] (AllExceptUS)
  • NERY, Laurent [FR]/[FR] (UsOnly)
  • GUERINEAU, Quentin [FR]/[FR] (UsOnly)
Inventors
  • NERY, Laurent
  • GUERINEAU, Quentin
Agents
  • GRANET, Pierre
Priority Data
09/0360822.07.2009FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) TWO PART EPOXY ADHESIVE SYSTEM HAVING IMPROVED OPEN TIME
(FR) SYSTEME ADHESIF BICOMPOSANT EPOXY A TEMPS OUVERT AMELIORE
Abstract
(EN)
The invention relates to a two part epoxy adhesive system, including: a composition (A) including 15 to 50% of a curable bisphenol A epoxy resin; 0.5 to 40% of an alkaline earth metal oxide or hydroxide; and 30 to 80% of an inert filler; and a composition (B) including: 15 to 50% of a polymercaptan obtained by the esterification of mercaptoacetic or mercaptopropionic acid with a polyol including 3 to 6 carbon atoms, and/or a polymercaptan obtained by the effect of hydrogen sulfide on a polyoxyalkylene polyglycidyl ether; and 50 to 85% of an inert filler. The weight ratio of composition (A)/composition (B) of said system corresponding to an epoxy group mole number/mercaptan group mole number ratio is between 0.95 and 2.5. The invention also relates to the use of said system as a glue for attachment or repair.
(FR)
1) Système adhésif bicomposant époxy comprenant : - une composition (A) comprenant : - de 15 à 50 % d'une résine époxy réticulable de type bisphénol A, - de 0,5 à 40 % d'un oxyde ou hydroxyde d'un métal alcalino-terreux, et - de 30 à 80 % de charges inertes; et - une composition (B) comprenant : - de 15 à 50 % d'un polymercaptan obtenu par estérifïcation de l'acide mercaptoacétique ou mercaptopropionique avec un polyol comprenant de 3 à 6 atomes de carbone, et/ou d'un polymercaptan obtenu par action du sulfure d'hydrogène sur un polyglycidyl éther de polyoxyalkylène, et - de 50 à 85 % de charges inertes; le rapport poids de composition (A)/ poids de composition (B) dudit système correspondant à un ratio nombre de moles de groupes époxy/nombre de moles de groupes mercaptan compris entre 0,95 et 2,5. 2) Utilisation dudit système comme colle de fixation ou de réparation.
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