摘要:
The present invention relates to cure accelerators useful for anaerobic curable compositions, such as adhesives and sealants. The cure accelerators are constructed as urethane/urea/thiourethane (meth)acrylate resins from diols and include a unit embraced within structure A where X is C1-20 alkyl, C2-20 alkenyl, or C7-20 alkaryl, any of which may be interrupted by one or more hereto atoms, and which are functionalized by at least one and preferably at least two groups selected from —OH, —NH2 or —SH and z is 1-3.
摘要:
The present invention relates to two-part moisture curing compositions useful for adhesive, sealing, potting and other applications. In particular, the present invention relates to two-part room temperature vulcanizing (RTV) compositions which include in one of the parts a moisture curing organic polymer which is substantially free or does not contain siloxane bonds in its backbone.
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:
Curable compositions, such as benzoxazine-based ones, are useful in applications within the aerospace industry, such as for example as a heat curable composition for use as a matrix resin in advanced processes, such as resin transfer molding, vacuum assisted transfer molding and resin film infusion, and their use in such advanced processes form the basis of the present invention.
摘要:
The invention relates to a thermally reversible hot melt adhesive that is isocyanate-free, moisture independent, crosslinkable and thermally reversible. The thermally reversible hot melt adhesive may be repeatedly heated and cooled without negatively affecting the performance of the adhesive. The thermally reversible composition may also be used as a primer layer. The thermally reversible hot melt adhesive and primer are particularly well suited for end use applications such as packaging, graphic arts, construction, footwear, textiles, general assembly, automotive and consumer goods.
摘要:
Provided are polydisulfides that are useful in moisture curable sealants. The polydisulfides have an S—S link in the backbone and are end-capped with at least one alkoxysilane functional group. Also provided are methods of making the polydisulfides, including methods that do not require the presence of a catalyst.
摘要:
The reaction of diner acids, C10-C20 dicarboxylic acids, and alkylene diamines having from 2 to 8 carbon atoms provides polyamides having good oil and solvent resistance, high heat resistance, flexibility, and relatively low melt viscosities.
摘要:
Reaction products prepared from reactants including: (a) at least one compound of structural Formula (I): wherein R1 is selected from aryl and heteroaryl; X is selected from a direct bond, —O—, —S—, —NH—, alkylene, cycloalkylene, heterocyclylene, arylene, alkarylene, and heteroarylene; Y is a substituted alkylene group having at least two contiguous carbon atoms and which can be interrupted by one or more —O—, —S—, or —NH— moieties as defined herein, wherein the alkylene group of Y has substituents independently selected from —OH, —NH2, —SH, cycloalkyl, heterocyclyl, aryl, and heteroaryl, or two hydrogen atoms on the same carbon atom of Y are replaced by carbonyl, and wherein at least two substituents of Y are each independently selected from —OH, —NH2, and —SH, as defined herein; and (b) at least one isocyanate functional material.
摘要:
There is disclosed a method for adhering a first connecting portion comprising a first electrode formed on a transparent substrate and a second connecting portion comprising a second electrode formed on a flexible substrate, whereby electrically connecting the first electrode and the second electrode, the method comprising the steps of: applying a bonding composition on at least one of the first connecting portion and the second connecting portion; aligning the first electrode and the second electrode, and irradiating with light while the first connecting portion and the second connecting portion are pressed so as to contact each other; and allowing the resulting assembly to stand at ambient temperature after the light irradiation; wherein the bonding composition comprises no electrically-conductive particle, but comprises: (a) a curable resin component; (b) a photo cure initiation component; and (c) an anaerobic curing initiation component; and wherein the anaerobic curing is not completed when the photo-irradiation is terminated.
摘要:
The present invention provides curable poly(acrylate) compositions, cured reaction products of which demonstrate improved resistance to shrinkage when exposed to hydrocarbon fluids, such as transmission fluids and oil- and fuel-based fluids.