Abstract: It is a task of the present invention to provide a polymerizer device and a polymerizer system which enable the production, by melt transesterification, of a high quality, high performance aromatic polycarbonate (which is colorless and has excellent mechanical properties) from a molten aromatic polycarbonate prepolymer obtained by reacting an aromatic dihydroxy compound with a diaryl carbonate, wherein the polycarbonate can be stably produced on a commercial scale at 1 to 50 t/hr for a long time. In the present invention, this task has been accomplished by a guide-wetting fall polymerizer device (in which a molten prepolymer is allowed to fall along and in contact with a guide, thereby effecting polymerization of the prepolymer) having a specific structure and a polymerizer system comprising such devices.

Abstract: The present invention relates to a cross-linkable or cross-linked rubber composition usable in a tread of a tire, and to a tire incorporating this tread. A rubber composition according to the invention is based on at least one diene elastomer, and a plasticizer comprising a glycerol oleic acid triester, said plasticizer comprises: one or more synthetic and/or natural compounds not extracted from petroleum in a mass fraction of from 45% to 100%, said compounds comprising at least one glycerol fatty acid triester, and the fatty acid(s) as a whole comprise oleic acid in a mass fraction equal to or greater than 60%, and one or more paraffinic, aromatic or naphthenic type plasticizing oils extracted from petroleum in a mass fraction of from 55% to 0%. The invention applies in particular to tires of passenger-vehicle type.

Abstract: The invention provides a polymer composition comprising cross-linked polyethylene having a non-polar biocompatible lipid disposed in at least a portion of the free volume of the polyethylene. The invention further provides methods for making the polymer composition.

Abstract: Piperidine derivatives and pharmaceutically acceptable derivatives thereof useful in methods of treatment of bacterial infections in mammals, particularly in man.

Abstract: A polycarbonate resin composition for use in the production of a substrate for an optical information medium, comprising (A) an aromatic polycarbonate resin having a weight average molecular weight of from 13,000 to 18,000, wherein the aromatic polycarbonate resin (A) is produced by subjecting an aromatic dihydroxy compound and a carbonic diester to a transesterification reaction, and is substantially free of a chlorine atom; and (B) a partial ester obtained from a saturated aliphatic carboxylic acid having 10 to 30 carbon atoms and a di- to hexahydric alcohol, wherein the partial ester (B) has an acid value of from 2 to 20 mgKOH.

Abstract: The object of the present invention is to provide a polycarbonate resin composition which has excellent transparency and durability against molding heat, which gives a molded article having an excellent mold release property, reduced strains, improved cracking resistance and, preferably, weatherability, and which is particularly suitable for a transparent member for a vehicle, pellets thereof and a molded article thereof, and the present invention provides a polycarbonate resin composition obtained by blending 100 parts by weight of a polycarbonate resin (Component A) and 0.005 to 2 parts by weight of a full ester (Component B) from an aliphatic polyhydric alcohol having 4 to 8 hydroxyl groups and 5 to 30 carbon atoms and an aliphatic carboxylic acid having 10 to 22 carbon atoms, said Component B having a 5% weight loss temperature, measured by TGA (thermogravimetric analysis), of 250 to 360° C. and having an acid value of 4 to 20, pellets thereof and a molded article thereof.

Abstract: The present invention is a stable labeling paint suitable for use on an OSB finishing line in conjunction with metal stencils. The labeling paint is water-based and can include opacifying agents, viscosity enhancing agents, surfactants, a polymeric binding agent with a glass transition temperature that is greater than about 25° C., and a debonding agent, which is active on metal surfaces.

Abstract: These objects and others may be accomplished with the present invention, the first embodiment of which provides an oil-in-water nanoemulsion, which includes: an oily phase dispersed in an aqueous phase; (i) at least one amphiphilic lipid selected from the group including nonionic amphiphilic lipids, anionic amphiphilic lipids, and combinations thereof; and (ii) at least one water-soluble nonionic polymer selected from the group including homopolymers and copolymers of ethylene oxide; polyvinyl alcohols; homopolymers and copolymers of vinylpyrrolidone; homopolymers and copolymers of vinylcaprolactam; homopolymers and copolymers of polyvinyl methyl ether; neutral acrylic homopolymers and copolymers; C1–C2 alkyl celluloses and their derivatives; C1–C3 alkyl guar; C1–C3 hydroxyalkyl guar; and combinations thereof; wherein a ratio of the weight of the oily phase to the weight of the amphiphilic lipid (i) ranges from 1.

Abstract: The invention relates to a thermoplastic composition comprising at least a copolymer of ethylene and an ?,?-unsaturated C3-C8 carboxylic acid, from about 10 to 99.9% neutralized with Lithium, and at least from about 0.01 wt % to about 2 wt % of a migrating antistatic agent. The invention also relates to films, sheet and molded articles comprising the above composition. The composition, film, sheet or molded article of the invention show good antistatic properties and preferably have a surface resistivity equal or less than 10E11. The composition, film, sheet or molded article of the invention can in particular be used as a protective transparent coating or layer on abrasion and scratch-exposed objects.

Abstract: There is provided composition comprising i) a thermoplastic polymer ii) a compound having the formula wherein R1, R2 and R3 are independently selected from an acyl group or a hydrogen atom, wherein at least one of R1, R2 and R3 is an acyl group (a short acyl group) having from 2 to 6 carbon atoms, wherein at least one of R1, R2 and R3 is a branched chain acyl group (a long acyl group) consisting of a saturated chain having 10 to 20 carbon atoms and a hydrophilic branch group.

Abstract: A polycarbonate resin molding material containing (A) 100 parts by weight of a polycarbonate resin and 0.001 to 1.0 part by weight of a mold release agent (B) which is composed of a fatty acid ester and a phosphorus-containing heat stabilizer and contains 0.0001 to 50 parts by weight, per 100 parts by weight of the fatty acid ester (b1), of the phosphorus-containing heat stabilizer (b2). The present invention provides a polycarbonate resin molding material excellent in mold releasability and heat resistance during molding, and a molded article therefrom. According to the present invention, particularly, there is provided a polycarbonate resin molding material excellent in mold releasability and thermal stability during molding and suitable for producing a optical disk by incorporating a small amount of a mold release agent and a heat stabilizer.

Abstract: A polyolefin nanocomposite is prepared by melt blending (a) a polyolefin and (b) a smectite clay in the presence of at least one intercalating agent that is a solid at room temperature and is selected from the group consisting of (a) hydroxy-substituted carboxylic acid esters, (b) amides, (c) hydroxy-substituted amides, and (d) oxidized polyolefins, wherein the ratio of the intercalating agent to the clay is at least 1:3, based on the ash content of the clay.

Abstract: Disclosed are a propylene polymer composition possessing excellent balance among rigidity and low warpage, resistance to deterioration caused by thermal oxidation during processing, weathering resistance, antistatic properties, and low bleeding properties, and a propylene resin composition which can easily produce molded products having excellent balance between rigidity and impact resistance (particularly low-temperature impact resistance) or heat resistance. The propylene polymer composition and the propylene resin composition comprise a propylene block copolymer consisting essentially of the following blocks (a) and (b) and having a melt flow rate of 0.

Abstract: A Polycarbonate molding composition is disclosed. The composition that contains a compound conforming to the general formula (I) wherein A represents a C10 to C40-fatty acid radical, B represents a trivalent alcohol having 3 to 20 carbon atoms, C represents a dicarboxylic acid radical having 4 to 40 carbon atoms, and n represents an integer from 0 to 15, is suitable for making a variety of molded articles having surface of good quality.

Abstract: There is provided a composition comprising i) a pigment ii) a compound having the formula wherein R1, R2 and R3 are independently selected from an acyl group or a hydrogen atom, wherein at least one of R1, R2 and R3 is an acyl group (a short acyl group) having from 2 to 5 carbon atoms, wherein at least one of R1, R2 and R3 is a branched chain acyl group (a long acyl group) consisting of a chain having 10 to 20 carbon atoms and a hydrophilic branch group.

Abstract: There is provided composition comprising i) a thermoplastic polymer ii) a compound having the formula wherein R1, R2 and R3 are independently selected from an acyl group or a hydrogen atom, wherein at least one of R1, R2 and R3 is an acyl group (a short acyl group) having from 2 to 6 carbon atoms, wherein at least one of R1, R2 and R3 is a branched chain acyl group (a long acyl soup) consisting of a saturated chain having 10 to 20 carbon atoms and a hydrophilic branch group.

Abstract: The present invention relates to biodegradable plastics and biodegradable plastic products thereof having flexibility, and more specifically, it aims to provide a plasticizer for providing aliphatic polyester, in particular, polylactic acid with flexibility, an aliphatic polyester composition using the same, a film, a sheet, a bag and the like obtained by molding said composition, that are, with respect to 100 parts by weight of aliphatic polyester, (1) an aliphatic polyester compound which contains polyglycerol acetic ester by 5-50 parts by weight, (2) an aliphatic polyester compound which contains polyglycerol acetic ester and acetic and fatty acid ester of glycerol having a specific structure by 5-50 parts by weight, and (3) flexible products which are obtained by molding the fatty polyester compound indicated in the above (1) or (2) into films, sheets, bags or the like.

Abstract: Environmentally degradable molded or extruded articles comprising a polyhydroxyalkanoate C4C6 copolymer composition having short annealing cycle times are provided. Such short annealing cycle times are achieved by compositions having a percentage of C6 units of 2-8%. Desirable annealing cycle times are obtained for molded or extruded articles, particularly for tampon applicators.

Abstract: A thickener for textile printing which is a polymer dispersion and includes at least one polymer selected from the group consisting of (A) at least one polymer derived from monomers having an ethylenically unsaturated double bond, (B) at least one ethylenically unsaturated carboxylic acid ester, (C) at least one ethylenically unsaturated carboxylic acid anhydride, and (D) at least one ethylenically unsaturated carboxylic acid amide; and a synthetic carrier medium comprised of at least one biodegradable component which may have varying respective biodegradabilities and which is selected from the group consisting of at least one ester which is at least one of an ester of synthetic origin and an ester of natural origin and which is liquid at room temperature and below.

Abstract: Disclosed is a process for esterifying and/or transesterifying a polymer having a polyethylenic backbone and pendant acid and/or ester moieties comprising contacting a melt of the polymer with a transesterifying compound so that the polymer undergoes esterification and/or transesterification but not alcoholysis. The esterified or transesterified polymer also has pendant ester moieties which differ in kind and/or number from the unreacted polymer. In one embodiment, the process also comprises adding an amount of a transition metal salt that is effective to promote oxygen scavenging. Also in a further embodiment, the process comprises irradiating the transesterified polymer with actinic radiation to reduce the induction period before oxygen scavenging commences.

Abstract: A thermoplastic resin composition having an excellent thermal aging resistance, particularly when used in moldings is provided which contains (1) a thermoplastic resin and (2) at least one of a polyglycerin derivative in which at least one hydroxyl group is esterified with a fatty acid, an N-acyl basic amino acid and a dibasic acid erythritol ester, and wherein i) if the polyglycerin derivative is used, the composition contains an antioxidant, or an antioxidant and a filler; ii) if the N-acyl basic amino acid is used, the composition contains a filler; and the thermoplastic resin contains at least one of a polyolefin resin, a polystyrene resin, a polyester resin, a polyamide resin and an engineering plastic; and iii) if the dibasic acid erythritol ester is used, the composition contains a filler, and the thermoplastic resin contains at least one of a polyolefin resin, a polystyrene resin, a polyester resin, a polyamide resin or an engineering plastic; and the amount of the dibasic acid erythritol ester is

Abstract: There is provided use of an anti-static composition for the manufacture of a polymer composition; wherein the anti-static composition comprising at least a first component and a second component; wherein the first or second component inhibits the crystallization of the other respective component; wherein at least the other respective component is an anti-static component; and wherein the anti-static composition is contacted with a polymer to form the polymer composition; with the proviso that if the anti-static composition consists solely of composition I and composition II, the anti-static composition is prepared by any one of: (i) integrated blending; or (ii) dry blending.

Abstract: The present invention relates to a thermoplastic resin composition characterized by comprising (A) a thermoplastic resin, (B) an inorganic filler and/or organic filler, and (C) a polyhydroxy alcohol ester of condensed hydroxyfatty acid and/or (C′) a condensed hydroxyfatty acid having a degree of condensation exceeding 3.

Abstract: The surface resistivity of polycarbonate resin is reduced and thus the antistatic properties improved by the inclusion of esters of branched fatty acids and polyhydroxylic compounds having at least one and desirably at least two free hydroxyl groups e.g. glycerol mono-iso-stearate. The reduction in surface resistivity can be acheived without a significant increase in haze or yellowness.

Abstract: Provided are a flame-retardant polycarbonate resin composition containing a phosphate compound as the flame retardant, and also injection moldings of the composition. The composition has good moldability, and its moldings have good phosphate mold-deposits resistance and good mold releasability. In particular, when containing a styrenic resin, the composition has much better melt fluidity, and its moldings have improved impact resistance and flame retardancy. The composition comprises 100 parts by weight of a resin or resin mixture of (A) from 20 to 100% by weight of a polycarbonate resin and (B) from 0 to 80% by weight of a styrenic resin, from 1 to 30 parts by weight of (C) a phosphate compound having a melting point of not lower than 70° C., and from 0.1 to 10 parts by weight of (D) at least one member selected from the group consisting of polyglycerins, polyalkylene glycols, esters of polyglycerins, esters of polyalkylene glycols and polyesters of polycarboxylic acids with polyalcohols.

Abstract: Vinylidene chloride polymer compositions comprising a vinylidene chloride polymer and from about 2 to about 12 weight percent of a glycerin ester provide films which exhibit oxygen transmission rates sufficiently low to protect gassy cheeses from spoilage but sufficiently high to let any excess CO2 produced during the cheese curing process escape from the packaged gassy cheeses.

Abstract: Homogeneous partially saponified triglycerides are made consisting essentially of metal salts or fatty acid and mono-, di- and tri-glycerides without the need for a compatibilizing additive. The PSTs are useful as lubricants, antistats, stabilizers, coupling agents, waterproofing agents and neutralizers for polymers. The PSTs are formed in situ by reacting a fat or oil under controlled conditions with a catalyst and at a sufficiently high temperature to achieve a homogeneous composition. The PSTs also have a variety of end-uses other than as polymer additives, for example, as external lubricants, coupling agents, viscosity controllers, thickening agents, surfactants and waterproofing agents.

Abstract: Homogeneous partially saponified triglycerides are made consisting essentially of metal salts or fatty acid and mono-, di- and triglycerides without the need for a compatibilizing additive. The PSTs are useful as lubricants, antistats and neutralizers for polymers. The PSTs are formed in situ by reacting a fat or oil under controlled conditions with a catalyst and at a sufficiently high temperature to achieve a homogeneous composition.

Abstract: A lactic acid polymer composition comprising formulating 100 parts by weight of a mixture consisting of 80-95% by weight of an L-lactic acid polymer having an L-lactic acid proportion of 75% or more and 5-20% by weight of a plasticizer selected from the group consisting of a polyhydric alcohol ester and a hydroxypolycarboxylic acid ester, 0.1-5 parts by weight of an anti-blocking agent having a SiO.sub.2 content of 90% or more and an average particle size of 7-50 nm, and 0.1-2 parts by weight of a slip agent; a molded product and film obtained from the composition; and a preparation process of the same are disclosed. The molded product and film are excellent in processability, transparency, flexibility, anti-blocking property and slip, and can be degraded into harmless water and carbon dioxide under natural environment, when abandoned.

Abstract: A solubilizing agent and a compound made by reacting selected nucleophiles, including fatty acid reactants and amines with an isocyanate are disclosed. The addition of the isocyanate and the different nucleophiles will create a di-urethane tetra-amide solubilizing agent product. The polyamide-solubilizing agent is useful as an ingredient in a phase change solid imaging material and as carrier compositions used to make phase change ink jet inks.

Abstract: A silicone composition for preparing a silicone pressure sensitive adhesive, the composition comprising (A) 20 to 55 parts by weight of a polydiorganosiloxane containing an average of at least two silicon-bonded alkenyl groups per molecule; (B) 45 to 80 parts by weight of an organopolysiloxane resin comprising R.sup.3.sub.3 SiO.sub.1/2 units and SiO.sub.4/2 units wherein each R.sup.3 is independently selected from the group consisting of monovalent hydrocarbon and monovalent halogenated hydrocarbon groups, the mole ratio of R.sup.3.sub.3 SiO.sub.1/2 units to SiO.sub.4/2 units is from 0.6:1 to 1.

Abstract: A composition for an electric cable is described. The composition is characterized in that it comprises an ethylene plastic and a compound of the general formula (I) ##STR1## where n.gtoreq.1,R.sup.1, R.sup.2 and R.sup.3, which are the same or different, designate hydrogen or the residue of a carboxylic acid with 8-24 carbon atoms,with the proviso that there are at least two free OH groups and at least one residue of a carboxylic acid with 8-24 carbon atoms in the molecule. Preferably, n=3-12 and R.sup.1, R.sup.2 and R.sup.3 designate hydrogen or stearoyl and the compound of formula (I) is present in an amount of 0.05-2% by weight of the composition. The compound of formula (I) may be combined with other additives, such as polyethylene glycols. The composition may be used as an insulating layer or a semiconductive layer in an electric cable.

Abstract: A zinc oxide dispersion for use in rubber compounds having at least 40, preferably 74-92, weight percent zinc oxide powder and at least five weight percent of a binder selected from the group consisting of asphalt and terpene tackifiers. The dispersion also preferably includes at least 0.5 weight percent stearifying agent such as stearic acid.

Abstract: A coating composition based on a dispersed fluoropolymer resin is provided. The composition includes a vinylidene difluoride-based polymer such as PVDF, an organic solvent and a dispersant. A method of forming a protective coating on a metal substrate with the fluoropolymer resin-based coating composition and a composite material having at least one surface coated with a vinylidene difluoride-based polymer film are also provided.

Abstract: The invention is directed to a cross-linked gel-like polyvinyl-based composition of matter having unique elasticity. The composition is capable of being used as a kneading compound, as well as being moldable, stretchable, and bouncing, for use in play activities. The composition is based on a cohesive polyvinyl alcohol/polyvinyl pyrrolidone nonadhesive and substantially nondrying binder composition that is appropriate for child use. The invention is also directed to a method of making the instant polyvinyl-based composition of matter.

Abstract: Described is a moisture-curing sealing and bonding compound made from completely synthetic polymers, the compound containing, to improve its non-sag properties, a triglyceride, either as the sole non-sag agent or in addition to prior art agents. The triglyceride should have a melting point over 40.degree. C., preferably over 50.degree. C., and be derived from saturated fatty acids with 8 to 26 C-atoms. Even without using thixotropic agents, compounds can be obtained which do not sag at temperatures over 40.degree. C. Such joint sealants can be used to fill joints more than 35 mm wide without sagging.

Abstract: The subject of the present invention is the use of at least one alkyl ester of adipic acid in a polyvinyl chloride (PVC) composition for the production of products made from biocompatible material, in particular blood lines, to increase the resistance of these products to irradiation with penetrating rays.

Abstract: A composition which is polyolefin-based includes polyolefin; from 0.1 to 5 parts by weight of lubricating agent per 100 parts by weight of the polyolefin; and from 0.05 to 2 parts by weight of zeolite per 100 parts by weight of the polyolefin, which zeolite is a crystalline aluminosilicate having a water adsorptivity not exceeding 10% of its weight, at 25.degree. C. and at a water vapor partial pressure of 4.6 torr, and having an Si/Al molar ratio in the crystal lattice of at least 35.

Abstract: The invention presents classes of thermoplastic, biodegradable compositions. Tests indicate that these compositions exhibit good mechanical properties, and readily degrade in the presence of microorganisms. The compositions of this invention are useful for producing injection-molded, thin-walled articles that are capable of appreciably degrading in the sewage system within thirty (30) days.

Abstract: A light conducting plate for back lighting which comprises a methacrylic copolymer resin comprising 90 to 99.5% by weight of a methyl methacrylate unit and 0.5 to 10% by weight of an alkyl acrylate unit containing 1 to 8 carbon atoms in the alkyl moiety thereof and having a reduced viscosity of 35 to 60 ml/g in chloroform, the chromaticity of said light conducting plate having x and y color coordinates both ranging from 0.01 to 0.001 as obtained according to JIS-Z-8701.

Abstract: A polyacetal resin composition comprises a polyacetal resin, (A) a light stabilizer selected from the group consisting of a benzotriazole compound, a benzophenone compound, an aromatic benzoate compound, a cyanoacrylate compound, and an anilide oxalate compound and (B) an aliphatic acid ester. It is improved in stability to weathing.

Abstract: Aqueous oil-in-water emulsion scratch cover compositions for covering scratches, blemishes and other damage to finished wooden articles such as furniture, wooden trim and wooden floors with characteristics comparable to volatile organic solvent-based scratch cover compositions are described which are substantially free of added volatile organic solvents and conventional surfactants. These emulsion compositions comprise 2-10% of an animal, vegetable or mineral oil that is a liquid and substantially nonvolatile at 25.degree. C., 0.0001-1% of at least one organic solvent soluble dye that is soluble in the oil and is substantially water insoluble, an effective amount, preferably 0.01-5%, of a polymeric electrostatic emulsifier such as an acrylates/C.sub.10 -C.sub.30 alkyl acrylate cross polymer that takes the place of conventional surfactants with the balance comprising water, and optionally, non-ionic waxes, nonionic nonvolatile silicone fluids, pigments or no more than about 1% of nonionic surfactants.

Abstract: There is disclosed a polyacetal resin composition that has excellent slidability and abrasion resistance and makes it possible to propose molded parts free of problems such as abrasion and noises such as squeaking caused by abrasion even when used under high load and high sliding speed conditions even when the material of the partner sliding parts is any type of plastic or metal. The resin includes from 0.5 to 15 parts by weight of olefinic elastomer, from 0.1 to 5.0 parts by weight of fatty acid ester having at least 12 carbon atoms, and, if necessary, from 0.05 to 5.0 parts by weight of polytetrafluoroethylene micropowder per 100 parts by weight of polyacetal resin.

Abstract: A lactic acid polymer composition comprising formulating 100 parts by weight of a mixture consisting of 80-95% by weight of an L-lactic acid polymer having an L-lactic acid proportion of 75% or more and 5-20% by weight of a plasticizer selected from the group consisting of a polyhydric alcohol ester and a hydroxypolycarboxylic acid ester, 0.1-5 parts by weight of an anti-bloking agent having a SiO.sub.2 content of 90% or more and an average particle size of 7-50 nm, and 0.1-2 parts by weight of a slip agent; a molded product and film obtained from the composition; and a preparation process of the same are disclosed. The molded product and film are excellent in processability, transparency, flexibility, anti-blocking property and slip, and can be degraded into harmless water and carbon dioxide under natural environment, when abandoned.

Abstract: Absorbable coating and absorbable blend of polycaprolactone and crystallization modifier especially suitable for use in the coating of surgical sutures and in the controlled release of chemical or pharmaceutical agents.

Abstract: Intercalates formed by contacting the layer material, e.g., a phyllosilicate, with an intercalant polymer to sorb or intercalate the polymer between adjacent platelets of the layered material. Sufficient intercalant polymer is sorbed between adjacent platelets to expand the adjacent platelets to a spacing of at least about 50 .ANG. (as measured after water removal to a maximum of 5% by weight water), up to about 100 .ANG. and preferably in the range of about 10-45 .ANG., so that the intercalate easily can be exfoliated into individual platelets. The intercalated complex is combined with an organic liquid into an unexpectedly viscous carrier material, for delivery of the carrier material, or for delivery of an active compound, e.g., a pharmaceutical, or cosmetic, or lubricant, e.g., food guide lubricants dissolved or dispersed in the carrier material. Alternatively, the intercalated complex can be exfoliated prior to combination with the organic liquid.

Abstract: Flameproofed thermoplastic molding materials containA) a thermoplastic polyester,B) decabromodiphenylethane,C) a metal oxide or metal sulfide or metal borate or a mixture thereof,D) an ester of at least one alcohol having at least 3 OH groups and one or more aliphatic mono- or dichaboxylic acids of 5 to 34 carbon atoms and optionally,E) by weight of conventional additives and processing assistants.

Abstract: The invention is directed to a composition of matter useful as a paper impregnant, to the method of its use, and to the products produced by the method. Poly (diphenylmethane diisocyanate) or PMDI has been used in the past as a paper impregnant with or without propylene carbonate as a diluent. These products have generally required pressing under high pressures and at elevated temperatures. It has now been found that triacetin and/or triethyl citrate in usages up to about 20% of PMDI give superior performance in impregnated products. The modified PMDI will cure at essentially ambient conditions in times as short as 1-2 days to insoluble polyureas with low residual amounts of isocyanates and reaction byproducts such as 4,4'-diaminodiphenylmethane. The treated papers can be used in applications of which skins for sandwich panels and high strength corrugated board would be exemplary.

Abstract: A hot melt adhesive composition can be made using a polyester derived from 2-propanoic acid (lactic acid). A thermoplastic resin grade polyester can be formulated into a functional adhesive using adhesive components. A lower molecular weight material can be used as a tackifying resin with a biodegradable/compostable resin in a formulated hot melt adhesive. The adhesive material can be made pressure sensitive and can be made entirely by a degradable by combining the polyester polymer with other biodegradable/compostable ingredients. The resulting adhesive composition that can be used in a variety of applications. The biodegradable/compostable adhesive material can be used as a substitute for non-biodegradable materials made from commercial polymers that resist attack by bacteria, fungi and other microbial populations. The hot melt adhesives can be used in (e.g.) packaging and the manufacture of disposable articles which are made from degradable materials.

Abstract: Polyurethane/urea elastomers having an isocyanate equivalent index below 100, preferably from about 15 to about 80; containing an effective amount of polyisocyanate component, and an effective amount of an isocyanate reactive component comprising at least one polyamine and at least one polyol, wherein said elastomer contains from about 1 to about 199 equivalent percent amine per isocyanate equivalent.