Abstract: Tetrakis(2,6-di-t-butyl-4-substituted phenyl)4,4'-substitutedbisphenyl diphosphites that are prepared from a hindered phenol and a non-hindered bisphenol have been found to be excellent stabilizers for organic materials subject to degradation, and form even more effective combinations with hydroxyphenylalkyleneyl isocyanurates, substantially and synergistically enhancing the stabilizing efficiency of the isocyanurate.

Abstract: Vinyl dispersion resins containing a major proportion of vinyl chloride that provide fluid suspensions thereof with thixotropic properties are obtained by isolating and drying the vinyl chloride polymer resin from an emulsion (latex) thereof containing a small amount of a cross-linked, water-swellable polymer of an unsaturated carboxylic acid.

Abstract: In a method for inhibiting scale formation, a random copolymer which consists essentially of a copolymer of (i) acrylic acid or methacrylic acid (together "(meth)acrylic"), (ii) acrylamide or methacrylamide (together "(meth)acrylamide"), and (iii) an alkoxyalkyl (meth)acrylate ester ("AAE") present in specified relative proportions, is soluble in water, and is surprisingly effective in the treatment of industrial process water used in recirculating water systems, particularly with respect to inhibiting the deposition of calcium phosphate on surfaces of equipment used in such systems.

Abstract: Under particular conditions, a cationic ring-opening polymerization of an oxirane monomer selected from the group consisting of an acyclic glycidyl ether, a cyclic glycidyl ether, and a haloalkyl epoxide, in the presence of a hydroxyl-containing backbone of a polymer ("HCB") and a particular catalyst, produces a polymerization having `living polymerization` characteristics, provided the OH groups are aliphatic OH groups and not aromatic OH groups. The result is a graft copolymer the molecular weight (mol wt) of which is directly proportional to the conversion of the monomer. The HCB, which may have from 1 to about 400 pendant OH groups, and more preferably at least 7 pendant OH groups, provides grafting sites for the grafting segments. Where a grafted segment contains halogen, the segment may be aminated. If the HCB is hydrophobic, the aminated block copolymer is amphiphilic.

Abstract: Substituted 2-(2,6-di-t-butyl-4-alkylphenoxy)-4H-1,3,2-benzodioxaphosphorins that are readily prepared, for example from hindered phenols and ortho-methylolphenols, are effective heat and anti-oxidant stabilizers for organic materials subject to degradation by heat and oxygen, and provide particularly efficient stabilizer systems when combined with hydroxyphenylalkyleneyl isocyanurates.

Abstract: Tris (3,6-di-t-butyl-2-naphthyl) phosphite is a heat and hydrolysis resistant stabilizer for organic materials subject to heat and ultra-violet degradation, and in combination with hydroxy-phenylalkyleneyl isocyanurates, provides a useful synergistic combination for use in polymers, particularly hydrocarbon polymers including the poly(olefins).

Abstract: Polysubstituted .alpha.-aminoacetamides of the formula ##STR1## wherein R.sup.1 is tert-alkyl; R.sup.4 is alkyl, phenyl, substituted phenyl, cycloalkyl, piperidinyl, tetraalkylpiperidinyl or an alkylene (.alpha.-aminoacetamide). These compounds are prepared by first reacting an .alpha.-haloacetamide with a base to form an .alpha.-lactam intermediate which in turn is reacted with a primary amine. The compounds are useful as stabilizers of polymeric materials against ultraviolet light degradation.

Abstract: A random copolymer which consists essentially of a copolymer of (i) acrylic acid or methacrylic acid (together "(meth)acrylic"), (ii) acrylamide or methacrylamide (together "(meth)acrylamide"), and (iii) and alkoxyalkyl (meth)acrylate ester ("AAE") present in specified relative proportions, is soluble in water, and is surprisingly effective in the treatment of industrial process water used in recirculating water systems, particularly with respect to inhibiting the deposition of calcium phosphate on surfaces of equipment used in such systems.

Abstract: This invention relates to reaction injection molding of a mixture of lactams in presence of a catalyst and a promotor which is carried out by mixing at least two lactams in a liquid state with the catalyst and promoter before injecting the mixture into a preheated mold. The use of a mixture of lactams results in a supercooled mixture which remains liquid at ambient temperature for at least 2 hours.

Abstract: Methanol and cyclohexane are recovered from a condensed methanol-cyclohexane azeotrope by allowing the condensed azeotrope to separate in a vessel into an upper phase rich in cyclohexane and a lower phase rich in methanol, fractionating the upper phase in a first column whereby the methanol-cyclohexane azeotrope is taken off the top and returned to the vessel while cyclohexane is removed from the lower portion of the first column, and fractionating the lower phase in a second column whereby the methanol-cyclohexane azeotrope is taken off the top and returned to the vessel while methanol is removed from the lower portion of the second column.

Abstract: Water-clear liquid polymers of epihalohydrin are obtained by passing said polymers or their solutions, that are yellow to dark brown, through a column of amorphous silica.

Abstract: Hydrolytically stable hydroxyl-terminated liquid polymers that are useful in the preparation of polyurethanes prepared by reacting at least one aminoalcohol with a carboxyl-terminated liquid polymer having a carbon-carbon backbone. The hydroxyl-terminated polymers have the formula ##STR1## wherein B is a carbon-carbon backbone, X is HO-- or HO--Y-- a univalent radical obtained by removing a hydrogen atom from an amine group of aminoalcohol containing one primary or secondary hydroxyl group and one primary or secondary amine group per molecule, and the polymers contain an average of greater than 1.5 terminal hydroxyl groups per molecule.

Abstract: Films of water containing hydrophilic interpolymers prepared by photopolymerization of monomer mixtures comprising partially or fully neutralized acrylic acid, hydroxyalkyl methacrylate or dialkylaminoalkyl (meth)acrylate and optionally a cross-linking agent. The films are useful as absorbents.

Abstract: Under particular conditions, a cationic ring-opening polymerization of a first oxirane monomer selected from the group consisting of an acyclic glycidyl ether, a cyclic glycidyl ether, and a haloalkyl epoxide, in the presence of a hydroxyl-containing organic material ("HCM"), for example a polymer (referred to herein as a `hydroxyl-prepolymer`), and a particular catalyst, produces a polymerization having `living polymerization` characteristics. The result is that molecular weight (mol wt) of the resulting polymer is directly proportional to the conversion of the monomer to said resulting polymer. This HCM serves as a chain propagator which initially furnishes OH groups as propagation sites. Subsequently, a second oxirane monomer, different from said first, is sequentially polymerized to yield a block copolymer. Branched block copolymers, or linear block copolymers of a HCM and (a) one or more glycidyl ethers, or (b) a haloalkyl epoxide and at least one glycidyl ether, may be prepared.

Abstract: Hindered hydroxybenzylcyclopentadienes and derivatives thereof, useful as antioxidants, are prepared by reacting cyclopentadiene, an alkali metal, and a hindered p-methylphenol having a displaceable group attached to the methyl group in the presence of a non-protic solvent; or in one step, by reacting cyclopentadiene, hindered phenol that is devoid of a group in the para position, formaldehyde, an amine, water, and an alkali metal hydroxide in the presence of a phase transfer catalyst; or in one step, by reacting cyclopentadiene and a hindered substituted p-methyl-phenol containing a displaceable group, in the presence of a non-protic solvent, water, an alkali metal hydroxide and a phase transfer catalyst. These compounds readily dimerize whereas the bis compounds are prepared in presence of an excess amount of the substituted p-methylphenol.

Abstract: Disclosed are stabilizer compounds of the formula: ##STR1## wherein R.sup.1, R.sup.3 and R.sup.6 are independently selected from the group consisting of alkyl of 1-8 carbon atoms, aryl, cycloalkyl, and alkalene of 2-6 carbon atoms;R.sup.2 is alkyl of 1-6 carbon atoms and can, in conjunction with an acyclic substituent of R.sup.1, form a cyclic substituent;R.sup.4 is hydrogen of 1-6 carbon atoms and can, in conjunction with an acyclic substituent of R.sup.3, form a cyclic substituent;R.sup.5 is hydrogen or alkyl of 1-6 carbon atoms;R is hydrogen or alkyl of 1-6 carbon atoms;Y is oxygen, nitrogen or sulfur;m is 0 to 6;n is 0 to 3; andX is 1 to 3.The foregoing stabilizers are highly effective in the stabilization of polymeric materials against ultraviolet light and the oxygen present in the environment. Due to the relative bulk of these stabilizers, their resistance to migration within an extraction from the stabilized polymer is similar to the more difficult to prepare polymeric stabilizer.

Abstract: Process for the synthesis of hindered polysubstituted .alpha.-amino acetamides which comprises first reacting an .alpha.-haloacetamide with a base to form an intermediate .alpha.-lactam which in turn is reacted with a primary or secondary amine. The product thus obtained can comprise a multifunctional compound having one or more hindered amino moieties. These compounds are highly effective as UV stabilizers in a variety of plastics, especially the alpha monoolefins.

Abstract: Improved electron beam curable compounds are prepared by mixing 100 weight parts of (1) polyurethanes prepared from polymeric polyols, organic diisocyanates and polyethers having terminal hydroxyl and unsaturated groups, or terminal hydroxyl and pendant unsaturated groups with (2) 1 to 25 weight parts of an acrylate or alkacrylate terminated polyurethanes prepared by reacting isocyanate terminated prepolymers of hydroxyl terminated polymers with hydroxyl-terminated acrylates or alkacrylates. Compositions of this blend may be crosslinked or cured in a few seconds by electron beam to provide an improved stable coating that can be cured to a variety of hardnesses. These polyurethanes combined with phenoxy resins also form particularly useful binder systems for magnetic tape.

Abstract: A known base-induced catalytic ketoform synthesis can now be carried out without sacrificing the directivity of the prior art process, but non-catalytically, that is, in the absence of the phase transfer catalyst heretofore required, provided the ketone/araldehyde is present in large excess from about 2 to about 25 times the calculated molar amount necessary to yield the reaction product. This synthesis obviates the problems of separating and recovering a phase transfer catalyst used in the prior art process.

Abstract: A process is taught in which a flexible, reinforcing travelling web may be uniformly, thinly transfer-coated, on both sides of the web simultaneously, with a low-viscosity liquid or mixture of monomers which may or may not wet the web, but does not wet the surface of a substrate on which the web and mixture are deposited. The liquid or mixture is first curtain-coated on an applicator curtain against which the web moves in controlled contact. An apparatus is provided for transfer-coating a travelling web with a low-viscosity liquid which is first curtain-coated on an applicator curtain.