摘要:
An adhesive comprises a colloidal solution in which a coordination polymer containing a transition metal such as zinc or cobalt and an azole such as at least one kind of imidazoles is dispersed in a dispersion medium such as an alcohol.
摘要:
The invention relates to a copolymer having polyamide PA blocks and polyether PE blocks, in which PA is of diamine.diacid X.Y type; X, the number of carbons of the diamine, is within the range from 6 to 14, and Y, the number of carbons of the diacid, is within the range from 6 to 18. The invention also relates to the use of the said copolymer in a process of direct adhesion between two TPE materials for increasing the peel strength between these materials.
摘要:
Compounds of formula I or II ##STR1## in which formulae R.sup.1 and R.sup.2 are each independently of the other hydrogen, alkyl, alkenylmethyl, cyclohexyl, phenyl, benzyl or tolyl, or are a --CH.sub.2 CHR.sup.3 --CH.sub.2 --S--H group, R.sup.3 and R.sup.4 are each independently of the other hydrogen or methyl, X is alkylene, --S--, --SO--, --SO.sub.2 -- or substituted alkylene, R.sup.5 and R.sup.6 are each independently of the other hydrogen or alkyl, R.sup.8 is hydrogen, alkyl, alkenylmethyl or phenyl, and wherein n is an integer from 1 to 10, can be used as hardeners for epoxy resins.The compositions containing epoxy resins and these hardeners are particularly suitable for use as adhesive formulations. The cured products have good moisture resistance.
摘要:
A composition of (a) of product of condensing a phenylene di- or tri(methyl halide) or di- or tri-(methyl alkoxy ether) with a molar excess of a phenol and (b) 10-20% of hexamethylene tetramine is curable and can be used in the preparation of moulding compounds, laminates and coating compositions.
摘要:
A PRESSURE SENSITIVE ADHESIVE PRODUCT IS PRODUCED BY CASTING ON A SUBSTRATE WEB, SUCH AS PAPER, PLASTIC FILM, OR METAL FOIL, A LAYER OF AN ADMIXTURE CONSISTING ESSENTIALLY OF: (A) A DIENE POLYMER OR COPOLYMER HAVING AT LEAST 1.6 TERMINAL ACTIVE-HYDROGEN GROUPS AND AN EQUIVALENT WEIGHT OF 500 OR MORE, (B) AN ORGANIC POLYISOCYANATE AND 3 (C) AT LEAST 75 PARTS PER 100 PARTS OF THE DIENE POLYMER AND THE ORGANIC POLYISOCYANATE OF A TACKIFYING RESIN OR MIXTURE OF TACKIFYING RESINS HAVING A BALL AND RING SOFTENING POINT OF 60* TO 140*C. THAT HAS BEEN PREDISSOLVED IN THE DIENE POLYMER, AND COREACTING THE DIENE POLYMER AND THE ORGANIC POLYISOCYANATE IN SITU ON THE SUBSTRATE WEB TO GIVE A PRESSURE SENSITIVE ADHESIVE PRODUCT. THE DIENE POLYMER AND THE ORGANIC POLYISOCYANATE, PLUS ANY OTHER INGREDIENTS COREACTIVE WITH THE DIENE POLYMER AND THE ORGANIC POLYISOCYANATE THAT ARE USED, ARE CHOSEN SO THAT THE PRESSURE SENSITIVE ADHESIVE POLYMER FORMED ON THE SUBSTRATE WEB HAS THE CHARACTER OF AN ELASTOMER.
摘要:
TRIFUNCTIONAL ISOCYANATES PREPARED BY THE REACTION OF CRYSTALINE TRIGLYCIDYL ISOCYANURATE HAVING AN EPOXIDE OXYGEN CONTENT IN EXCESS OF 14% WITH 1 MOL FOR EACH EPOXIDE OXYGEN IN SAID CRYSTALINE TRIGLYCIDYL ISOCYANURAATE, OF AN ORGANIC DIISOCYANATE FREE OF OTHER SUBSTITUENTS CAPABLE OF REACTING WITH IPOXIDE OXYGEN UNDER ANHYDROUS CONDITIONS AT A TEMPERATURE ABOVE 100*C. AND BELOW THE DECOMPOSITION TEMPERATURE OF THE REACTANTS. THE INVENTION ALSO RELATES TO THE METHOD OF PREPARING THE TRIFUNCTIONAL ISOCYANATES AND THE USE OF THE SAME AS HARDENABLE COMPOUNDS.
摘要:
POLYURETHANE PRODUCTS ARE OBTAINED BY REACTING ORGANIC POLYISOCYANATES WHICH ARE CHARACTERIZED BY A COMMON STRUCTURAL UNIT, WITH ACTIVE HYDROGEN CONTAINING COMPOUNDS AS DETERMINED ACCORDING TO THE ZEREWITINOFF METHOD. THESE PRODUCTS HAVE A HIGH DEGREE OF UTILITY IN FIELDS SUCH AS CAST AND THERMOPLASTIC POLYURETHANES, REINFORCED PLASTICS, ELASTIC FIBERS AND FILMS, COATINGS, URETHANE FOAMS ESPECIALLY RIGID URETHANE FOAM PRODUCTS, ETC.
摘要:
Process for the preparation of factice-like products from oxidized polymers of esters of unsaturated fatty acids and/or resinic acids with polyols reacted with a phosphorus halide and products produced therein having fire-resistant properties.