Abstract: The invention relates to a process for coating metal strip in the coil coating process. The coating materials employed consist of:a) 3 to 50% by weight, preferably 20 to 40% by weight, of polyester imide resins, the 20 to 60% by weight solutions of which possess viscosities from 90 to 4,000 mPas at 23.degree. C. and the hydroxyl values of which are in the region from 50 to 300,b) 3 to 40% by weight, preferably 10 to 30% by weight, of pigments and/or fillers,c) up to 3% by weight of suitable auxiliary substances and additives andd) 10 to 90% by weight, preferably 20 to 60% by weight, of one or more organic solvents,the sum of a), b), c) and d) being 100% by weight. The invention further relates to the use of the metal strip produced by the process according to the invention for production of exhaust components.

Abstract: A process for preparing hydrophobic material is disclosed which comprises applying a hydrocarbon polymer compound solution to the surface of material to be treated, vaporizing the solvent of the solution, and then fluorinating the polymer compound to coat the surface of the material to be treated with the fluorinated polymer compound.

Abstract: A polyimide layer having a thickness greater than about 5 microns is formed on a substrate by coating a substrate with a solution of polymer and a solvent of the formula ##STR1## wherein R.sub.1 and R.sub.2 are independently a hydrogen, a C.sub.1 to C.sub.6 alkyl moiety, or a ##STR2## R.sub.5 is a C.sub.1 to C.sub.6 alkyl moiety; and R.sub.3 and R.sub.4 are independently hydrogen or a C.sub.1 to C.sub.6 alkyl moiety, and curing the resulting coated substrate.

Abstract: Method and composition for retarding bloom development thereby extending shelf life of fresh cut flowers (16) by "blanketing" and "feeding" techniques. Fresh cut flowers, typified by roses are refrigerated and provided a blanketing confinement within a close environment of an essence of aromatic flower (such as lavender or rose) by the presence of essential flower oils or real aromatic flowers. The essence is, effectively, a vapor blanket. Cut stemmed (10) flowers are initially transported, stored or displayed in a container (18') of fresh water (19), in which a light or expanded magnesium carbonate sediment layer (21) provides cut flower end (14') envelopment for bacterial filtration, oxygen buffering and sufficient water-borne nutritional intake with or without the adjunct blanketing. Additionally, freshness is made determinable by a simple testing process which will anticipate the value of applying or reapplying the carbonate treatment technique.

Abstract: A highly orientated, liquid crystalline polymer having a light controlling function and suitable for use in the optoelectronic field is prepared by applying a solution of a polymer which exhibits a thermotropic liquid crystallinity onto a stretched polymer film, drying the applied solution, and thereafter heat-treating the thus-coated film at a temperature at which said liquid crystalline polymer exhibits a liquid crystal phase, for a time sufficient for the molecules of the liquid crystalline polymer to be orientated.

Abstract: A process for making thin walled hollow polymeric articles or for forming a polymeric coating on a substrate, comprises contacting a suitably shaped former on a substrate to be coated with a solution of an amine-terminated prepolymer having a functionality of at least 2 in an organic solvent to form a coating on the former or substrate, drying the coating on the former or substrate, then contacting the coating on the former or substrate with a solution of a polyfunctional curing agent which is capable of reacting with the amino end groups of the prepolymer to cause chain extension and/or cross-linking of the latter.

Abstract: The invention is a process for modifying pore size near the surface of porous materials. The surface is contacted with an alcohol solution of a metal alkoxide which forms a hydrous oxide insoluble in water, an amount of water insufficient to hydrolyze fully the metal alkoxide, and a mineral acid for a time sufficient for the solution to penetrate the surface region but not the bulk. This is followed by exposing to sufficient moisture to complete hydrolysis and then curing to stabilize the metal oxide in the pores near the surface.

Abstract: Disclosed is a coating method comprising the steps of applying a base coat composition to a substrate, applying a clear coating composition to the coated surface while the applied base coat composition is still uncured and curing the two coating compositions thus applied at the same time, the method being characterized in that the base coat composition is an aqueous one containing a coloring pigment and that the clear coating composition is a curable one containing a basal resin and a curing catalyst as main components, the basal resin being a resin (Y) having in the molecule hydroxyl group and/or hydrolyzable group both directly attached to the silicon atom, and epoxy group or a resin mixture (Z) of a resin or a compound (Z-1) having hydroxyl group and/or hydrolyzable group both directly attached to the silicon atom and a resin (Z-2) having epoxy group.

Abstract: A method for forming a hydroxyapatite coating film on a substrate which comprises coating a dispersion of flocculated colloids of hydroxyapatite on a substrate and drying. The coating method of this invention does not require heating of the coated substrate to high temperature and hence can also be applied to a substrate which is easily deteriorated with heat. The coated substrate of this invention has excellent strength and adhesion force and is useful in a variety of fields, particularly as an implant and as a material, adsorbing and separating agent.

Abstract: A thin film diagnostic device capable of detecting the presence of a specific organic material in a sample solution. The device comprises a layer of an anodizable color-generating metal (e.g. tantalum), a porous anodic film containing aluminum oxide overlying the color generating metal, and a reagent capable of binding with the specific organic material forming a coating on the anodic film. The porous anodic film and the coating have a combined thickness such that a color change is produced when the specific organic material binds to the reagent. The device can be used to test the biological or synthetic products in samples taken from patients or other sources.

Abstract: A method of treating polyester fibers, which comprises(1) treating the polyester fibers with an adhesive composition (AR) comprising a latex (A) of a vinylpyridine/conjugated diene copolymer having a vinylpyridine unit content of at least 20% by weight but not more than 70% by weight and a resorcinol-formaldehyde resin as main components, and(2) further treating it with an adhesive composition (BR) comprising a latex (B) of a ntirile group-containing highly saturated copolymer rubber having an iodine number of not more than 120 and a resorcinol-formaldehyde resin as main components. A composite obtained by bonding the treated polyester fibers to a nitrile group-containing highly saturated copolymer rubber by vulcanization has high initial and heat-resistant adhesion strength, and is useful for production of timing belts and polyribbed belts.

Abstract: A process for applying and providing an enhanced polyester-based polymer concrete overlay on a porous substrate structure is provided. The process requires first applying a monomeric high-molecular weight acrylate- or methacrylate-based pretreatment composition to the substrate and then forming the polyester-based polymer concrete overlay over the treated substrate.

Abstract: The present invention provides a vascular biomaterial that includes expanded PTFE and a haemocompatible membrane covalently bonded thereto. Also provided is a process for making the vascular biomaterial that involves chemically modifying the surface of expanded PTFE to provide a surface partially covered with for instance, a hydroxyl moiety, and covalently bonding a haemocompatible membrane to the chemically modified surface of expanded PTFE.

Abstract: A high quality coated paper for printing having excellent smoothness, gloss and printability is provided by using a coating composition mainly composed of a pigment and a latex of heterogeneous polymer particles consisting of a hard polymer domain having a glass transition temperature of 80.degree. to 220.degree. C. and a soft polymer domain having a glass transition temperature of 25.degree. to 95.degree. C. in combination with a high temperature calender finishing.

Abstract: Fouling of a ship's hull is inhibited by an amine of the formula ##STR1## where R.sup.1 is a monovalent hydrocarbon group derived from a diterpene and R.sup.2 and R.sup.3 are each independently hydrogen, an alkyl group having 1 to 18 carbon atoms or an aryl group having 6 to 12 carbon atoms. The amine acts as a paint binder and as a marine biocide. An antifouling coating composition may comprise a pigment with the said amine as binder. Alternatively an antifouling coating composition comprises as binder an acid-functional polymer whose acid groups are blocked by a monoamine group which forms an organic-solvent-soluble salt of the polymer.

Abstract: This invention relates to a low temperature method of converting coatings of hydrogen silsesquioxane resin or hydrolyzed or partially hydrolyzed R.sub.X Si(OR).sub.4-X to ceramic silica coatings. The method comprises applying a silica precursor coating to a substrate, exposing the coating to an environment comprising an amine and subjecting the coating to a temperature sufficient to yield the ceramic coating. The methods of the invention are particularly applicable to applying coatings on electronic devices.

Abstract: A process is disclosed for controlling the furnace temperature in a manufacture of phenolic resin-treated honeycomb structures from paper webs. The phenolic resin-treated honeycomb structures from the paper webs are, preferably, glued together and shaped to a body. Such body is immersed into a solution of a phenolic resin mixture and subsequently dried and cured in an indirectly heated furnace. The immersion and drying/curing steps may be repeated several times and take place at a temperature in the range of 70.degree. C. to 110.degree. C., except for the last drying/curing step, which takes place at a temperature in the range of 145.degree. C. to 155.degree. C. For controlling the temperature, the substances contained in an air mixture exiting from the furnace are preferably condensed and subjected to fractionated distillation with the temperature of the furnace preferably being adjusted, based upon the quantities of organic and/or inorganic compounds obtained.

Abstract: A conductive coating composition containing a binder and pigment in a pigment to binder weight ratio of about 15:100 to 100:100; wherein the binder contains(A) a multifunctional amine, a polyamide resin, polyamidoamine resin or any mixtures thereof; and(B) a multifunctional epoxy resin;wherein the electrically conductive pigment is a silica which is either amorphous silica, a silica containing material or a silica coated pigment, the silica is in association with a two-dimensional network of antimony-containing tin oxide crystallites in which the antimony content ranges from about 1-30% by weight of the tin oxide and the composition forms a coating on a substrate that has a surface conductivity of at least 100 Ransburg units. The coating can be used on metal or plastic substrates or previously coated substrates of either plastic or metal to render the substrate conductive and easily grounded for electrostatic spraying.

Abstract: A method of forming a silver image receiving element in diffusion transfer photography by hydrolyzing a surface of an alkali-impermeable polymer layer on a continuous running web so as to convert the polymer to an alkali-permeable polymer. The method includes the steps of first applying a liquid mixture of a hydrolyzing agent and a softening agent to the surface of the alkali-impermeable polymer layer, evaporating the softening agent in the liquid mixture by blowing air on the surface to form a concentrated layer of the hydrolyzing agent; and thereafter accelerating the occurrence of hydrolysis by blowing air on the surface so as to initiate hydrolysis reaction of the surface to as to convert the alkali-impermeable polymer layer to an alkali-permeable polymer layer. The temperature of the air which is blown on the surface is in the range of 50.degree. to 120.degree. C.

Abstract: A method for treating fiber insulation to minimize the formation of dust and airborne particulate and waterproofing calcium silicate by applying to the insulation an aqueous composition containing certain water-dispersible polymers. The method is especially useful when used in conjunction with the removal of installed insulation.