摘要:
The present invention relates to a curable composition, comprising specific meta-substituted aromatic compounds and at least one benzoxazine compound. In particular, the invention relates to the use of said meta-substituted aromatic compounds as curatives/catalysts for benzoxazine-containing compositions.
摘要:
The present invention relates to a curable composition, comprising at least one benzoxazine compound, and at least one sulfonic acid ester having a cyclic structure. In particular, the invention relates to the use of at least one sulfonic acid having a cyclic structure as a heat-activatable catalyst for curable composition, comprising at least one benzoxazine compound.
摘要:
The invention relates to a curable benzoxazine macromonomer containing at least 3 benzoxazine rings and at least one aliphatic, heteroaliphatic, araliphatic, hetereoaraliphatic, aromatic or heteroaromatic fragment, the fragment comprising a shortest atom chain containing at least 40 consecutive atoms between two benzoxazine nitrogen atoms or between two benzoxazine oxygen atoms, and said atom chain must not include any oxazine ring atoms (“soft fragment”). The invention further relates to cured products made thereof and a method or producing the same.
摘要:
The present invention relates to curable compositions comprising (a) N-arylated benzoxazines, and (b) a prepolymer produced from a diisocyanate having two isocyanate groups with different reactivity. The compositions are particularly suitable in the production of adhesives and sealants, prepregs and towpreg.
摘要:
The invention relates to a binding agent composition, in particular an adhesive, containing at least one epoxy compound or at least one amino compound comprising at least two amino groups, or at least one hydroxy compound comprising at least two OH groups, or at least one mercapto compound comprising at least two mercapto groups, or at least one isocyanate comprising at least two NCO groups and a compound with chelating properties. The invention also relates to a method for producing binding agent compounds of this type and to the use of the same.
摘要:
A method of washing a soiled textile comprising cotton, the method comprising contacting the textile with a wash liquor, the wash liquor containing a soil-release effective amount of one or more soil release polymers obtained by polymerizing one or more polyisocyanates with one or more polymeric polyols having an average molar mass of above 1000 D and a 20° C. water solubility of above 300 g of polymer per liter, one or more polyols having an average molar mass of below 12,000 D and a 20° C. water solubility of below 100 g per liter, and optionally one or more further polyols.
摘要:
Blocked polyurethane prepolymers obtained by reacting at least one polyol, a first polyisocyanate comprising diphenylmethane diisocyanate, a second polyisocyanate having a viscosity at 25° C. of less than about 250 mPa·s, a phenol blocking agent, and an oxime blocking agent, wherein the weight ratio of second polyisocyanate:first polyisocyanate is not more than 0.65:1. The blocked polyurethane prepolymers are especially useful in formulating coating compositions additionally comprising at least one acrylic resin, at least one plasticizer, at least one filler, and optionally other ingredients and additives. A cured coating is obtained by applying a layer of the coating composition to a substrate surface and heating the coating composition layer.
摘要:
The present invention relates to adhesive compositions containing a prepolymer which can be obtained by reacting a reaction mixture containing: at least one epoxy resin; at least one polyetherdiamine or polyethertriamine; at least one carboxyl-terminated butadiene-acrylonitrile copolymer (CTBN); and rubber particles having a core/shell structure. The invention also relates to methods for curing said compositions, to the cured adhesive compositions thus obtained, to the use thereof for bonding components and to the components thus obtained.
摘要:
The present invention relates to a polymerizable composition, containing at least one benzoxazine compound and certain oligomeric or polymeric urethane group-free polyether compounds. The present invention further relates to adhesives, sealants or coatings comprising the polymerizable composition according to the invention and the polymerization products of said composition.
摘要:
The present invention relates to a polymerizable composition comprising at least one polymerizable benzoxazine compound and core-shell particles, where the core of the core-shell particles comprises at least one (co)polymer of at least one ethylenically unsaturated monomer (A) and the shell of the core-shell particles comprises at least one crosslinked (co)polymer of at least one ethylenically unsaturated monomer (B), where the ethylenically unsaturated monomer (B) encompasses at least one aromatic group. The present invention further relates to adhesives, sealants or coatings, which encompass the polymerizable composition of the invention, and also to the polymerization products of this composition. The present invention further relates to a process for the production of the polymerizable composition of the invention.