摘要:
Low-viscosity acrylate hydrosols based on (meth)-acrylic acid esters and other monomers, such as styrene, methyl styrene, acrylonitrile, vinyl acetate and/or vinyl chloride, which are produced in the presence of a special mixed emulsifier of an alkyl phenol ether sulfate and an .alpha.-sulfocarboxylic acid and/or an ester thereof with a C.sub.1 to C.sub.4 -alcohol.
摘要:
Fatty (meth)acrylates having a %-EpO content of below 0.6, which are reaction products of epoxidized compounds selected from the group consisting of epoxidized fatty acid esters, epoxidized triglycerides and mixtures thereof, and acids selected from the group consisting of acrylic acid, methacrylic acid and mixtures thereof, wherein the %-EpO content of the epoxidized compound is above 6.4, wherein the epoxidized compound is an epoxidation product of fatty acid moieties having one or more carbon-carbon double bonds, wherein less than 20 mole % of the fatty acid moieties contain three or more carbon-carbon double bonds, and wherein greater than 60 mole % of the fatty acid moieties contain two carbon-carbon double bonds are useful as pigment dispersants. Pigment dispersant concentrates, aqueous pigment dispersions and methods of dispersing pigments with the fatty (meth)acrylates are described.
摘要:
Water-based coating composition comprising: (a) from 0.5 to 90% by weight of at least one epoxy resin other than self-dispersing epoxy resins; (b) from 0.5 to 90% by weight of at least one (meth)acrylate of a polyol; (c) from 5.0 to 98.0% by weight of water; and (d) from 0.5 to 10% by weight of one or more dispersants; wherein the at least one (meth)acrylate comprises at least two (meth)acrylate groups per molecule, and wherein the Brookfield viscosity of the composition is less than 15000 mPas.
摘要:
Water-based coating composition comprising: (a) from 0.5 to 90% by weight of at least one epoxy resin, wherein the epoxy resin is solid at 20° C., and wherein the epoxy resin is self-dispersing in water; (b) from 0.5 to 90% by weight of at least one (meth)acrylate of a polyol; and (c) from 5.0 to 99.0% by weight of water; wherein the at least one (meth)acrylate comprises at least two (meth)acrylate groups per molecule, and wherein the Brookfield viscosity of the composition is less than 15000 mPas.
摘要:
Radically post-crosslinked polymers are made by a process comprising the steps of: (1) forming a polyurethane (a*) by reacting a compound (a) with an aliphatic and/or an aromatic isocyanate and a compound (c) wherein compound (a) is the product of the reaction of an epoxidized fatty acid ester and/or an epoxidized triglyceride with acrylic acid and/or methacrylic acid and wherein compound (c) is a polyol ester having two or more C═C double bonds per molecule; (2) forming a crosslinked polyurethane by reacting the polyurethane (a*) with a radical initiator (b). The polymers are useful as components in composites comprised of natural and/or synthetic fibers.
摘要:
Polyurethanes having improved tear resistance which are the reaction product of the following components: A) a polyol component containing dimer diol and/or trimer triol and/or an OH-terminated polyester produced from polycarboxylic acids, preferably dimer fatty acid and/or trimer fatty acid, and diols and B) an isocyanate component containing prepolymers obtained by reacting polyfunctional isocyanates with dimer diol and/or trimer triol and/or an OH-terminated polyester produced from polycarboxylic acids, preferably dimer fatty acid and/or trimer fatty acid, and diols; and processes for their manufacture.
摘要:
Pigment concentrates comprising a pigment, a liquid carrier medium and a diol alkoxylate of the general formulae (I), (II) and/or (III) are described in conjunction with methods of preparing the same. The diol alkoxylates described and used herein are of the general formulae (I), (II) and/or (III): wherein each of R1, R2, R3, R5, R7 and R8 independently represents a hydrogen atom or an alkyl group having from 1 to about 36 carbon atoms, with the proviso that both R1 and R2 are not simultaneously hydrogen atoms and the total number of carbon atoms in R1 and R2 is from about 6 to about 38, and with the proviso that both R3 and R5 are not simultaneously hydrogen atoms and the total number of carbon atoms in R3 and R5 is from about 6 to about 38, wherein R4 represents a linear or branched alkylene group having from about 2 to about 12 carbon atoms or (—CH2—CHR6—O)z—, wherein R6 represents a hydrogen atom or a methyl group, wherein each of x and y independently represent a number of from about 1 to about 200, z represents a number of from about 1 to about 20, n represents a number of from about 2 to about 12, and wherein the sum of x+y is a number of from about 5 to about 200.
摘要:
Pigment concentrates comprising a pigment, a liquid carrier medium and a dimerdiolalkoxylate, wherein a dimer portion of the dimerdiolalkoxylate comprises from about 36 to about 44 carbon atoms, and wherein the at least one dimerdiolalkoxylate has from about 1 to about 200 moles of alkylene oxide per mole of dimerdiol, are described in conjunction with methods of preparing the same.
摘要:
The invention relates to the use of reaction mixtures containing polyester polyols which have been obtained by ring opening of epoxidized esters with carboxylic acids, as polyol component, optionally in admixture with polybutadiene diol, in the production of solid polyurethane materials by casting.
摘要:
The use of alkyl glycosides of C.sub.8 -C.sub.22 alkanols and reducing sugars, in which one sugar chain containing on average from 1 to 10 sugar residues attached to one another by glycoside bonds is present for every alkyl group, as co-emulsifiers or emulsifiers in the emulsion polymerization of ethylenically unsaturated monomers.