摘要:
A high molecular weight, high viscosity liquid, water soluble polyoxyalkylene block copolymer suitable as a functional fluid is provided having the formula ##STR1## wherein Q is the organic residue from an organic diisocyanate; x is an integer in the range of about 1 to 10; R.sup.1 and R.sup.2 are hydrogen, methyl, ethyl, or mixtures thereof with the proviso that the overall content of species wherein R.sup.1 and R.sup.2 are hydrogen must be at least 50 percent by weight; R.sup.3 and R.sup.4 are organic residues resulting from the removal of terminal hydrogen atoms from difunctional polyols; y and z are integers representing the polyether blocks in said copolymer and the sum of which must be from about 1.05 to 2.0 times the value of x; and n, m, r, and s are integers wherein n=m and r=s and the sums n+m and r+s are each in the range of 8 to 250.
摘要:
Compositions comprisng an ester diol alkoxylate in conjunction with aqueous acrylic latex have been produced that are useful as coatings, inks and adhesives.
摘要:
The wetting rates of polyurethane hydrogels comprising lightly crosslinked polymers of isocyanate terminated prepolymers which are the reaction product of (i) poly(alkyleneoxy) polyols with (ii) organic diisocyanates that has been lightly crosslinked with (iii) water or an organic polyamine are enhanced by treating the surface of the solid hydrogel with certain ketones, alcohols, organic amines, aromatic hydrocarbons or aqueous alkali metal hydroxide solutions.
摘要:
Derivatives of esterdiol alkoxylates obtained by reaction thereof with an anhydride, isocyanate or epoxide, as well as the anhydride capped products of the derivatives of the two latter. Formulations containing the above are also claimed.
摘要:
Novel ester diol alkoxylates produced by the reaction of an ester diol and an alkylene oxide. The reaction product is a vehicle useful in ink or paint formulations, as a solvent, and in adhesive formulations; it is also useful as an intermediate in the production of other valuable compounds and as a surfactant.
摘要:
Compositions comprising an ester diol alkoxylate in conjunction with crosslinkers, or polycaprolactone polyols or derivatives thereof, or low molecular weight polyols, or isocyanates, or latexes have been produced that are useful as coatings, inks and adhesives.
摘要:
A continuous process for efficiently co-producing secondary alcohols of long-chain olefins and lower carboxylic acid esters, comprising (I) performing an acid/olefin reaction in the presence of a heterogeneous catalyst such as Amberlyst 15, and (II) performing an ester-exchange reaction in the presence of, e.g., titanium alcoholate. A desirable feature of the process is the ability to produce co-products of choice.
摘要:
Narrow, balanced alkoxylation product mixture distributions having at least one alkoxylation product constituting more than 20 weight percent of the mixture can be provided by modified, calcium-containing catalysts. Catalysts for alkoxylation processes can be produced from lime and can, with modification, be used to make the narrow, balanced alkoxylation product mixture distribution.
摘要:
Graft copolymers are obtained which are substantially free of insoluble homopolymers by grafting 3 to 15 percent by weight of acrylic acid onto poly(oxyalkylene) compounds.
摘要:
Novel ester diol alkoxylate acrylates prepared by the reaction of an ester diol and an alkylene oxide to produce an ester diol alkoxylate that is subsequently reacted with acrylic acid or methacrylic acid. The novel derivatives are useful as vehicles in coating and ink compositions and as monomers in the production of polymers.