Abstract: Polyetherimide ester compositions comprising the reaction products of:(i) a mixture of at least one low molecular weight diol and at least one high molecular weight hydroxy terminated polylactone; and(ii) a set of reactants selected from(a) (i) at least one high molecular weight poly(oxy alkylene)diamine, and (ii) at least one tricarboxylic acid or a derivative thereof, or(b) at least one high molecular weight polyoxyalkylene diimide diacid.Also polyetherimide ester compositions comprising the reaction products of:(i) at least one high molecular weight hydroxy terminated polylactone; and(ii) a set of reactants selected from(a) (i) at least one high molecular weight poly(oxy alkylene)diamine, and (ii) at least one tricarboxylic acid or a derivative thereof, or(b) at least one high molecular weight polyoxyalkylene diimide diacid.

Abstract: Novel alkylcarbamylmethyl aminotriazines self-cure and also function as crosslinkers for compounds containing active hydrogen groups. When the active hydrogen-containing compounds are hydroxylated polymers, coatings are provided with exceptional resistance to detergent and salt-spray exposure and improved abrasion resistance. The novel aminotriazines also can be combined with fillers as binders which when cured provide shaped articles of manufacture, such as insulation and foundry core molds.

Abstract: Novel beta-hydroxyalkylcarbamylmethyl aminotriazines function in self-condensation and as crosslinkers for amino resins and also compounds containing active hydrogen groups. The compositions cure to coatings with excellent properties, and they can be used as binders for fillers such as insulating glass and foundry sand.

Abstract: A lactone-modified hydroxyethyl (meth)acrylate solution comprising 30 to 95 parts by weight of a lactone-modified hydroxyethyl (meth)acrylate represented by the formula (I): ##STR1## wherein R is CH.sub.3 or H, and n is an integer of from 3 to 20, and 5 to 70 parts by weight of a solvent selected from the group consisting of toluene, xylene, an acetic acid ester and a mixture thereof is disclosed. The solution of the invention is homogeneous at room temperature.

Abstract: An adhesive layer used in the manufacture of laminated glasses. The layer comprises a cold polymerizable polyurethane formed from an isocyanate component comprising a monoisocyanate with a double ethylene bond and from a polyol component and at least one polymerization initiator.

Abstract: An adhesive layer used in the manufacture of laminated glasses. The layer comprises a cold-polymerizable polyurethane formed from an isocyanate component selected from among the aliphatic isocyanates, cycloaliphatic isocyanates, and aliphatic-aromatic isocyanates, from a polyol component comprising at least one long polyol, at least one short diol and at least one mono-alcohol with a molecular weight of less than 300 with a double ethylene bond in its formula and at least one polymerization initiator.

Abstract: Novel linear polysiloxane-polylactone block copolymers are useful as surface modifying additives due in part to their miscibility with a wide variety of base polymers. A particularly preferred polysiloxane-polycaprolactone linear blocked copolymer is miscible with nylon and is useful for forming surface modified nylon products.

Abstract: This application discloses a synthetic resin based on alcohol-modified polyepoxides. The synthetic resin can be prepared by reacting a diepoxide, or a mixture of diepoxides, having an epoxide equivalent weight of less than about 500, with compounds with a hydroxyl group, which is reactive towards epoxide groups, in a molar ratio from about 2:1 to about 7:6 at temperatures from about 100.degree. C. to about 180.degree. C. in an organic solvent free of hydroxyl groups. The synthetic resin has terminal epoxide groups and a mean molecular weight from about 400 to about 5000.

Abstract: A thermoplastic composition, especially for use as an orthopedic splinting or casting material comprises a crosslinked polymeric component and a filler. The crosslinked polymeric component comprises a polycaprolactone, such as poly(epsilon)caprolactone, and a thermoplastic rubber in a ratio of from about 4:1 to about 1.5:1 by weight. Styrene-butadiene-styrene and styrene-isoprene-styrene triblock copolymers are particularly suitable thermoplastic rubbers.Crosslinking may be carried out using an organic peroxide such as benzoyl peroxide. The filler is preferably a mixture of talc and silica.

Abstract: Polyester-polysiloxane block copolymers for dental uses are disclosed as low modulus thermoplastic elastomers. The copolymers comprise polycaprolactone residues and poly(dimethylsiloxane) .alpha.,.omega.-diol residues which are linked by ether bonds. The compounds exhibit the property of plasticity by heating and the property of original rubber elasticity by cooling again to room temperature.

Abstract: Described are novel thermosetting epoxy resin compositions suitable for making cured resins, prepregs and stiff, tough thermoset composites. The thermosetting compositions comprise a polyepoxide component, an amine hardener and a specified amount of certain aromatic oligomers containing functional groups which are reactive with the polyepoxide and/or hardener under curing conditions for the composition. The cured resins have a multiphase morphology which comprises at least one glassy continuous phase and at least one glassy discontinuous phase and have a fracture toughness, K.sub.IC, of at least 1.0 MPam.sup.1/2.

Abstract: Disclosed is a stiff, tough thermoset composite, the composite comprising a crosslinked epoxy resin matrix and high strength filaments. The resin matrix comprises a glassy discontinuous phase dispersed in a glassy continuous phase that continues throughout the resin matrix. Volume fractions of the discontinuous phase are at least about 35% of the total volume of the continuous and discontinuous phases combined in exceptionally tough composites.Also disclosed are novel resin compositions suitable for making these thermosets.

Abstract: Copolymers are made by reacting glycolide with a mixture of p-dioxanone monomer and homopolymer. The copolymers are useful in making surgical devices such as surgical sutures.

Abstract: An unsaturated poly (alpha-hydroxy acid) copolymer is prepared by reacting a cyclic diester of an alpha-hydroxy acid having 2 to 5 carbon atoms with an ethylenically-unsaturated epoxide. The reaction is conducted at a temperature of 50.degree. to 250.degree. C. in the presence of an effective amount of a ring-opening catalyst and an effective amount of a free-radical polymerization inhibitor.

Abstract: A crystalline copolymer is produced by first polymerizing p-dioxanone to form a mixture of monomer and homopolymer, and then adding lactide to this mixture and polymerizing to form a copolymer.

Abstract: The present invention relates to 2,3,2',3'-bis-morpholine derivatives corresponding to the formula ##STR1## The present invention also relates to a process for the preparation of these derivatives and to their use as hydrolysis protective agents for synthetic polymers containing ester groups and/or carbonate groups. Preferred synthetic polymers are polyurethanes.

Abstract: Novel silicone/polylactone graft copolymers, well suited as polymer composition additives, especially those destined for biomedical applications, have the average general formula: ##STR1## in which p is an integer or decimal ranging from 1.5 to 6, q is an integer or decimal ranging from 0 to 20, A is a divalent hydrocarbon having from 2 to 20 carbon atoms, n is an integer ranging from 3 to 12, m is an integer ranging from 2 to 25, the radicals R', which may be identical or different, are each hydrogen or C.sub.1 -C.sub.4 alkyl, and R is a hydrocarbon having up to 24 carbon atoms.

Abstract: The invention relates to water-dispersible binders for cationic electro-dip paints with a base of modified epoxy resins. The binders are produced by reaction of(A) epoxy resins having a molecular weight of at least 350 with(B) elasticized polyphenols having a molecular weight of over 350 with addition to the epoxide groups and further reaction of the reaction product of (A) and (B) with(C) primary and/or secondary amines or ammonium salts to obtain the required water-dispersibility.

Abstract: Described herein are compositions which contain a specific group of oligomeric diamine hardeners and epoxy compounds which when combined with structural fibers produce composites which have improved tensile properties, high compressive strengths, and improved impact resistance. These compositions also exhibit low moisture absorption.

Abstract: Novel copolymers of .epsilon.-caprolactone and glycolide useful in making surgical articles and particularly surgical sutures having Young's modulus of less than 250,000 psi. New and improved polymerization methods for producing the novel .epsilon.-caprolactone and glycolide copolymers.

Abstract: Polymerizable solutions of mixtures containing a bicyclic amide acetal, a polymer which does not react with the bicyclic amide acetal and a monomer or polymer capable of undergoing condensation polymerization with the bicyclic amide acetal, a process for polymerization of such solutions and the novel polymers resulting from the polymerization are described.

Abstract: A medical implant useful in the regeneration of soft and hard connective tissue, such as cartilage and bone, is disclosed which comprises a copolymer of a major amount of epsilon caprolactone and a minor amount of lactide. Where regeneration of bone tissue, in particular, is desired, the copolymer may further include osteogenic material in powdered or particulate form. If soft tissue regeneration is desired, the copolymer may include chopped carbon fiber. A mass of the copolymer, optionally including additives, may be molded by hand by heating the polymer to a temperature of 115.degree.-160.degree. F., by, for example, immersion in hot water. The mass is then molded to the void to be filled or shape the regenerated tissue is desired to assume, and implanted in the patient. The mass is gradually replaced by regenerated tissue.

Abstract: Curable thermosetting resin compositions comprising an epoxy resin having at least two 1,2-epoxy groups per molecule, an aromatic diamine hardener, and as a cure accelerator an aromatic trihydroxy compound are disclosed. The aromatic trihydroxy compound, such as for example, phloroglucinol, n-propyl gallate, or pyrogallol, improves the cure speed of the epoxy/aromatic diamine resin system, while at the same time producing cured compositions having excellent mechanical and thermal properties. The disclosed compositions find particular application in the preparation of composites by, e.g., filament winding procedures.

Abstract: A general purpose expandable adhesive comprised of a spiroortho ester synthesized from the lactone, 6-caprolactone, and the diglycidyl ethers of bisphenol A and 1,4-butanediol, Cab-o-Sil thickener/thixotrope, silica (325 mesh), and Unirez 2800, amidoamino curing agent, has superior tensile strength, superior bondability and with less void formation to aluminum, steel, wood, and cured concrete as compared with a general purpose adhesive which does not contain a spiroortho ester.

Abstract: Described herein is a composition which contains bis(2,3-epoxycyclopentyl) ether, a specific group of hardeners and a specific group of thermoplastics. When cured, these compositions have improved tensile properties as compared to similar compositions which do not contain thermoplastics.

Abstract: A novel copolymer comprising(a) repeating units of the formula:--OCH[(CH.sub.2).sub.p R.sub.f ]CH.sub.2 -- (Ia)or--OCH.sub.2 CH[(CH.sub.2).sub.p R.sub.f ]-- (Ib)wherein R.sub.f is C.sub.3 -C.sub.21 perfluoroalkyl and p is an integer of 1 to 10 and(b) repeating units of the formula:--(OCH.sub.2).sub.m (CH.sub.2).sub.n -- (II)wherein m is an integer of 1 to 4 and n is an integer of 2 to 10 when m is 1, an integer of 1 to 8 when m is 2 or an integer of 0 to (12-2m) when m is 3 or 4,--OCH.sub.2 CR.sup.1 R.sup.2 CH.sub.2 -- (III)wherein R.sup.1 and R.sup.2 are each hydrogen, CH.sub.3, CH.sub.2 Cl, CH.sub.2 F, CH.sub.2 OCH.sub.3, CH.sub.2 OC.sub.2 H.sub.5, CH.sub.2 OCOCH.sub.3, CH.sub.2 OC.sub.6 H.sub.5, CH.sub.2 OH or CH.sub.2 CN provided that at least one of them is not hydrogen,--OCH.sub.2 (OCH.sub.2 CH.sub.2).sub.q -- (IV)wherein q is 2 or 3, and/or--[(R.sup.3).sub.r --COO]-- (V)wherein R.sup.3 is CH.sub.2 or CF.sub.

Abstract: A protective coating composition containing a polycaprolactone polyol and an aminoplast derivative is applied to a thermoplastic substrate to produce a thermoformable article having abrasion resistance, solvent resistance and weatherability.

Abstract: Pharmaceutical compositions comprising a pharmacologically active polypeptide and a pharmacologically or veterinarily acceptable amphipathic, non-cross-linked linear, branched or graft block copolymer, which has a minimum weight average molecular weight of 5,000, in which the hydrophobic component is biodegradable and the hydrophilic component may or may not be biodegradable, the composition being capable of absorbing water to form a hydrogel when placed in an aqueous, physiological-type environment; copolymers suitable for use in said compositions; and method for the manufacture of such copolymers.

Abstract: An epoxy resin having hydroxyl groups is modified with .epsilon.-caprolactone by effecting the ring opening polymerization of .epsilon.-caprolactone onto the hydroxyl groups contained in the epoxy resin. The modified epoxy resin is further combined with a polycarboxylic anhydride and a promotor for curing, or polyamine to give a curable composition. The modified epoxy resin is further modified by reacting the epoxy groups therein with a primary or secondary amine. Both the modified resin and the compositions are useful as coating.

Abstract: An epoxy resin having hydroxyl groups is modified with .epsilon.-caprolactone by effecting the ring opening polymerization of .epsilon.-caprolactone onto the hydroxyl groups contained in the epoxy resin. The modified epoxy resin is further combined with a polycarboxylic anhydride and a promotor for curing, or polyamine to give a curable composition. The modified epoxy resin is further modified by reacting the epoxy groups therein with a primary or secondary amine. Both the modified resin and the compositions are useful as coating.

Abstract: A hydroxyl-functional polymer is reacted with a compound ZCO.N(H).sub.x.N(H).sub.x.CO.OR, where Z is halogen or aryloxy, x is 0 or 1 and R is hydrocarbon, and the reaction product is if necessary oxidized to give an azodicarboxylate functional polymer having the formula QOCO.N:N.CO.OR where Q is an inert polymer group. This polymer is used to react with ethylenically unsaturated natural or synthetic rubber so as to graft groups derived from the polymer on the rubber backbone.

Abstract: Polyamide compositions comprising:(a) poly(.epsilon.-caprolactam) resin of viscosity average molecular weight of at least about 15,000; and(b) at least one block polymer having(i) from about 25 to about 80 weight percent poly(.epsilon.-caprolactam) segments of the formula ##STR1## wherein x is an integer equal to 5 or more; and (ii) from about 75 to about 20 weight percent of segments having a number average molecular weight of at least 300 selected from the group consisting of segments of poly(propylene oxide), polycaprolactone, polytetrahydrofuran, polybutadiene, polyisoprene, polyisobutylene, poly(C.sub.1 -C.sub.8 alkylene acrylate), poly(C.sub.1 -C.sub.

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: 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) to 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 polyester copolymer, suitable for an adhesive, is obtained by copolymerizing(A) terephthalic acid or a mixture of more than 50 mol % of terephthalic acid and at least one kind of dicarboxylic acid selected from aromatic dicarboxylic acids excluding terephthalic acid and aliphatic dicarboxylic acids,(B) a low-molecular weight diol composed of 1 to 50 mol % of 2-methyl-1,3-propanediol and 99 to 50 mol % of 1,6-hexanediol, and(C) at least one kind of high-molecular weight diol (in such an amount that the high-molecular weight diol component in the copolymer is 0 to 60 wt %) selected from polyalkylene ether glycol and polycaprolactone glycol.

Abstract: A triblock copolymer having a proportion of units having the formula: ##STR1## as the end blocks, and the formula (I) randomly combined with a proportion of units having the formula: ##STR2## as the middle block finds particular advantageous use in manufacturing absorbable monofilament sutures and other surgical articles. A surgical article is manufactured from a synthetic absorbable copolymer formed by copolymerizing glycolide with 1,3-dioxan-2-one (trimethylene carbonate) wherein a combination of the monomers is substantially completely polymerized before the addition of the other monomer in the presence of a difunctional initiator at or below about 180.degree. C.; glycolide is added and the temperature increased up to about the melting point of poly glycolide to form a triblock copolymer with a proportion of units having the formula: ##STR3## as the end blocks, and the formula (I) randomly combined with a proportion of units having the formula: ##STR4## as the middle block.

Abstract: Polyurethanes prepared from hydroxyl terminated polymers, organic diisocyanates and polyethers having terminal hydroxyl and unsaturated groups or terminal hydroxyl and pendant unsaturated groups, are soluble in solvents for deposition on a carrier that after removal of the solvent can be wound and processed as by calendaring and slitting immediately after removal from a solvent drying oven without layer to layer adhesion or other disruption of the coating. After such processing, the binder compositions containing the polyurethane may be crosslinked or cured in a few seconds by electron beam radiation to provide an improved stable coating. These polyurethanes combined with phenoxy resins form particularly useful binder systems for magnetic tape.

Abstract: Polymer blends containing (i) 0.2-95% by weight of a high molecular weight .beta.-hydroxybutyric acid homo- or copolymer and (ii) a polymer containing at least 25% by weight of chlorine or nitrile groups, such as chlorinated polyethylene, polyvinyl chloride, or a high acrylonitrile resin.In small quantities the .beta.-hydroxybutyric acid polymer acts as a processing aid for the chlorine or nitrile containing polymer.In larger quantities the properties of the .beta.-hydroxybutyric acid polymer or the chlorine or nitrile containing polymer are improved.

Abstract: Polyamide compositions comprising:(a) at least one polyamide resin of number average molecular weight of at least 5000; and(b) at least one block polymer having(i) from about 30 to about 70 weight percent polyamide segments selected from ##STR1## wherein x is an integer equal to five or more and y is an integer equal to three or more;(ii) from about 70 to about 30 weight percent of segments having a molecular weight of at least 300 selected from the group consisting of segments of poly(ethylene oxide), poly(propylene oxide), polycaprolactone, polytetrahydrofuran, polybutadiene, polyisoprene, polyisobutylene, poly(C.sub.1 -C.sub.8 alkylene acrylate), poly(C.sub.1 -C.sub.4 dialkylene siloxane), poly(ethylene-co-propylene), poly(ethylene-co-carbon monoxide) and combinations thereof; said (ii) segments being connected to an (i) polyamide segment through groups selected from amide, ester, urea, carbamate and imide; and(iii) greater than 0.

Abstract: An inner air-tube of a tire for bicycle, particular for racing cycle substantially composed of a thermoplastic urethane resin of a specific type. The urethane resin is comprised of a bifunctional polyol, a diisocyanate and a diol serving as a chain-propagating agent, the ratio by mole of the diisocyanate to a mixture of the bifunctional polyol and the diol being in the range of 1.05-1.10:1. The urethane resin of this type is readily after-crosslinked to improve its physical properties to a great extent.

Abstract: A procedure is disclosed employing the sequential addition of monomers to form a copolymer useful in the manufacture of surgical articles.

Abstract: Osteosynthesis parts are made of an absorbable polymer composition consisting of a matrix of lactic acid homopolymer, or a copolymer very high in lactic acid units, having discrete reinforcement elements embedded therein. The reinforcement elements are made of glycolic acid homopolymer or copolymers predominant in glycolic acid units. Such a composition may be shaped with a minimum of polymer degradation into osteosynthesis parts exhibiting good resilience, shock resistance, and tensile strength.

Abstract: Low energy-curable coatings compositions of (1) an epoxide, (2) a polyisocyanate and as a catalyst and initiator a mixture of (3) a stannous salt and (4) a liquid polycarboxylic acid produced by the reaction of a polycaprolactone and an intramolecular polycarboxylic acid anhydride.

Abstract: Blends of polyphenylene oxide or styrene resin-modified polyphenylene oxide, lactone block copolymers and, optionally, polar resins exhibiting improved impact strength as compared with polyphenylene oxide resin with no additive.

Abstract: Improved adhesive compositions for laminating plastic and particularly vinyl films to metal are described which contain about 15 to 30 percent by weight of a phenolic resol having a methylol content of about 15 to 50 percent by weight, about 25 to about 40 percent by weight of certain nonfunctional polyurethanes having a molecular weight of at least 20,000 and preferably 60,000 to 300,000 and about 35 to 55 percent by weight of a vinyl solution polymer, all in an organic solvent. The nonfunctional polyurethanes are thermoplastic polyesterurethanes devoid of reactive isocyanate and hydroxyl groups and are derived from monomeric polyisocyanates and polyhydroxy compounds chain-extended with a low molecular weight diol, preferably a cycloaliphatic diol, to the desired molecular weight. When the polyhydroxy compound is a polycaprolactone polyol, it is essential that chain extension be effected with a cycloaliphatic diol, preferably dimethylolcyclohexane.

Abstract: A procedure is disclosed employing the sequential addition of monomers to form a copolymer useful in the manufacture of surgical articles.

Abstract: Intimate mechanical blends of polypivalolactone resins of different molecular weights wherein parts molded from the mechanical blends have improved resistance against warpage without diminution of other important physical properties of the higher molecular weight resin.

Abstract: Block copolymer of the structure A-B wherein:A is a polylactone block of recurring units: ##STR1## wherein PM is a linear polymethylene chain having from 2 to 13 carbon atoms,B is a polyoxymethylene block of recurring units --CH.sub.2 O--. The block copolymer contains at least 2 wt.% of block B and at least 0.1 wt.% of block A.The block copolymer can be used as modified polyacetal when rich in block B, or as special additive for plastics materials when rich in block A.