摘要:
In a stabilized polyvinyl chloride molding mixture containing a stabilizer combination based upon alkali metal, alkaline earth metal, and/or zinc soaps, co-stabilizers, powdered, crystalline, hydrous aluminosilicate, and flow promoters, as well as optionally additional conventional additives, the improvement which comprises, per 100 parts by weight of polyvinyl chloride,(a) from about 0.2 to 5 parts by weight of a synthetic, crystalline, powdered alkali metal aluminosilicate containing from about 13 to 25 percent by weight of water of crystallization; and(b) from about 0.1 to 5 parts by weight of at least one co-stabilizer selected from the group consisting of .beta.-diketones, .alpha.-ketoenol esters, .alpha.-acyllactones, substituted 1,4-dihydropyridine-3,5-dicarboxylic acids, and pyrrole, the pyrrole being unsubstituted or substituted.
摘要:
Stabilized polyvinyl chloride molding compositions contain, per 100 parts by weight polymer, 0.02 to 5 parts by weight of at least one compound of Formula I and/or Formula II ##STR1## in which R represents an alkyl group with 1 to 18 carbon atoms, a cycloalkyl group with 5 or 6 carbon atoms, a phenyl group, an alkylphenyl group with 7 to 11 carbon atoms or an X--CO--CH.sub.2 group, while X represents an NH.sub.2 group or an OM group in which M represents lithium, sodium or potassium.
摘要:
This invention is directed to a process for stabilizing polyvinyl chloride molding mixtures which comprises admixing(a) from about 0.2 to 5 parts by weight of a sodium aluminosilicate of small particle size;(b) from about 0.05 to 1.5 parts by weight of one or more calcium salts of fatty acids;(c) from about 0.05 to 0.5 parts by weight of one or more zinc salts of fatty acids;(d) from about 0.2 to 2.0 parts by weight of partial esters of polyols and fatty acids; and(e) from about 0.1 to 10 parts by weight of thioglycolic acid esters of polyols and/or thioglycolic acid esters of monofunctional alcohols per 100 parts by weight of polyvinyl chloride or copolymer of vinyl chloride.
摘要:
Stabilized polyvinyl chloride molding compositions contain, per 100 parts by weight of polymer, 0.02 to 5 parts by weight compounds of Formula I, ##STR1## in which R represents an alkyl group with 1 to 19 carbon atoms, a cycloalkyl group with 5 or 6 carbon atoms, a phenyl group, an alkylphenyl group with 7 to 11 carbon atoms or an MOOC--CH.sub.2 group, n represents the numbers 0 and 1, and M represents sodium or potassium.Heat stabilizers which are metal soaps, aromatic metal carboxylates, metal phenolates and organotin compounds as well as crystalline sodium aluminosilicate are also incorporated.
摘要:
Acylcyanamides are disclosed having the formula ##STR1## in which the symbol R represents a straight-chain or branched chain alkyl or alkenyl group having from about 5 to about 21 carbon atoms, which group may be substituted by OH--, O--CH.sub.2 --CH.sub.2 --OH-- and/or O--R'-- groups, where the symbol R' represents an alkyl group having from 1 to about 4 carbon atoms and wherein M is a manganese, iron, cobalt, nickel, zinc, cadmium, copper and/or lead.The compounds of the invention are useful as heat stabilizers for chlorine-containing polymers.
摘要:
The use is disclosed of at least one acylcyanamides of the formula ##STR1## in which the symbol R represents a straight or branched chain alkyl or alkenyl group having from 5 to 21 carbon atoms, such group being unsubstituted or substituted by a OH, O--CH.sub.2 CH.sub.2 OH, O--R' group or a mixture thereof, in which R' represents an alkyl group containing from 1 to 4 carbon atoms; in which M is a monovalent or divalent metal cation; and in which n represents the valency of the metal cationto stabilize, thermoplastic molding compositions containing a homopolymer or a copolymer of vinylchloride or a mixture thereof. There is also disclosed heat stabilized thermoplastic molding compositions comprising polyvinylchloride, or a polymer of vinylchloride, and at least one acylcyanamide of Formula I.
摘要:
A stabilized thermoplastic composition comprised of polyvinyl chloride or mixed polymers containing mainly vinyl chloride units together with stabilizers and other conventional additives employed in thermoplastic compositions, which have as major stabilizer component, a content of 0.02 to 5 parts by weight of aliphatic polyhydroxyl compounds containing 4 to 6 OH-groups per 100 parts by weight of polymer. These polyhydroxyl compounds should contain at least one carboxyl and/or carbonyl group and/or double bond. Suitable compounds are gluconic acid, glucuronic acid, ketogluconic acid, ascorbic acid or the alkali metal salts or alkaline earth salts of the mentioned acids.Other conventional processing additives may be present. The invention concerns also a process for the manufacture of pipes, profiles, foils, hollow parts by hot forming, with the use of the mentioned additives, and the additional use of paraffin, free fatty acid, epoxidized soybean oil or higher molecular weight ester wax.
摘要:
Copolymers of long-chain alkyl acrylates corresponding to the following formulaCH.sub.2 .dbd.CR.sup.1 --CO--OR.sup.2 (I)in which R.sup.1 is a hydrogen atom or a methyl group and R.sup.2 is the residue of a C.sub.16-34 fatty alcohol, with N-containing olefins containing acrylate or methacrylate functions can be used as flow control agents for powder coatings.
摘要:
This invention is directed to water-dilutable alkyd and acrylate resins. More particularly, this invention is directed to a method for the preparation of water-dilutable resin preparations based upon alkyd and acrylate resins which comprises the steps of:(a) preparing an aqueous alkyd resin dispersion, wherein the alkyd resin has an acid number of from about 5 to 40 and a hydroxyl number of from about 150 to 300 and the dispersion has a solids content of from about 30 to 90 percent by weight; and(b) polymerizing monomers of acrylic acid derivatives or methacrylic acid derivatives in the dispersion from step (a), optionally in the presence of additional water, to obtain a total solids content of from about 30 to 80 percent by weight, the weight ratio of alkyd resin to acrylate resin being from about 1:4 to 9:1.This invention is also directed to the use of these binders in water-dilutable lacquer systems.
摘要:
Water-in-oil emulsions containing from 2 to 20% by weight of polymeric emulsifiers comprising statistical copolymers composed of units of the general formulae ##STR1## in the molar ratio of (I) to (II) of 2:1 to 20:1; wherein X is hydrogen or methyl, R.sub.1 is alkyl having 6 to 24 carbon atoms and R.sub.2 is ##STR2## 20 to 75% by weight of water; and the remainder to 100% by weight of conventional oily substances used in cosmetic emulsions.