Multiphase Acrylic Adhesives
AssigneeHuntsman International LLC
InventorsPauline Goodall Barker, Dimiter Lubomirov Kotzev
Life of this patent
Estimating the term…
Abstract
The invention relates to cured (meth)acrylate based adhesive composition, comprising at least two co-continuous phases of interpenetrating networks and at least two types of polymeric inclusions, in which one of the co-continuous phases comprises a polymer or copolymer based on at least one acrylic or methacrylic acid monomer or a derivative thereof. These compositions exhibit better facture toughness, especially at low temperatures.
Claims24
A cured (meth)acrylate based adhesive composition, comprising at least two co-continuous phases of interpenetrating networks and at least two types of polymeric inclusions, one of the co-continuous phases comprising a polymer of at least one acrylic or methacrylic acid monomer or of a derivative thereof.
An uncured, polymerizable composition comprising (A) 1-25% b.w. of the total composition of a rubber, (B) 25-75% b.w. of the total composition of a monomer or monomer blend comprising acrylic or methacrylic acid or a derivative thereof (C) 1-50% b.w. of the total composition of a polyurethane or a meth(acrylated) polyurethane and (D) at least one type of core shell particle.
(canceled)
A two-part cartridge comprising one dispensing unit comprising a first composition comprising (A) 1-25% b.w. of the total composition of a rubber or a precursor thereof, (B) 25-75% b.w. of the total composition of a monomer or monomer blend comprising acrylic or methacrylic acid or a derivative thereof (C) 1-50% b.w. of the total composition of a polyurethane or a meth(acrylated) polyurethane and (D) at least one type of core shell particle, and a second dispensing unit comprising a second composition comprising at least one compound capable of inducing polymerization of said first composition.
A method for adhesively bonding two substrates, wherein an uncured, polymerizable composition comprising (A) 1-25% b.w. of the total composition of a rubber or a precursor thereof (B) 25-75% b.w. of the total composition of a monomer or monomer blend comprising acrylic or methacrylic acid or a derivative thereof (C) 1-50% b.w. of the total composition of a polyurethane or a meth(acrylated) polyurethane (D) at least one type of core shell particle is applied to surfaces and polymerised/cured via free radical polymerisation.
24-26. (canceled)
Dependencies are inferred from the claim text.