Abstract: Compositions for anti-AIDS virus and other antivirus medicines are disclosed. Included are one having the ingredients other than glycyrrhizin contained in licorice, specifically flavonoids contained in licorice and more specifically not less than one kind of substance selected from a group consisting of liquiritigenin, i-liquiritigenin, liquiritin and i-liquiritin and glycyrrhizin produces allowed to contain not less than 3% of flavonoids contained in licorice based on glycyrrhizin as major constituting elements. Method of preparing said compositions having the filtrate obtained through the ultrafiltration of aqueous extract from licorice using ultrafiltration membrane with a fractionatable molecular weight of 10,000 to 100,000 as an effective ingredient and drugs for the pevention from infection and onset and for the therapy against AIDS used said compositions are also claimed.

Abstract: Multicolor image products useful for prepress color proofing. The products are laminates of a transfer support sheet; an adhesive layer of a heat-fusible and bondable material on a surface of said transfer support sheet; an image layer of a first color provided on the adhesive layer and having image areas of a water-insoluble resin component and non-image areas, the image areas being bonded to the surface of the adhesive layer; and one, two or three additional image layers each of a different color other than that of the first image layer.

Abstract: An image transfer method is disclosed, characterized in for the preparation of a color proof wherein separate-in-color images are formed in each colored photosensitive layer of photosensitive material coated on a thermosensitive adhesive layer on a release surface provided on a support from which the thermosensitive adhesive layer is releasable, and a multicolor image is formed on an image receiver by transferring said separate-in-color images onto said image receiver one by one together with said adhesive layer, repeating concurrent heating and pressurizing procedures, and thereafter further submitting the image receiver with the multicolor image formed thereon to heat treatment.

Abstract: 2',3'-Dideoxy-4-thio-uridine derivatives represented by a following general formula ##STR1## (wherein R indicates hydrogen or protecting groups such as acetyl group, benzoyl group, trityl groups, etc.), process for their preparation, antivirus agents used them as effective ingredients and therapeutic method and therapeutic drugs for virus diseases are disclosed.

Abstract: A composition for anti-AIDS viral and other antiviral medicines having spent liquor from pulping and/or processed products thereof as major constituents and preventive and/or therapeutic method(s) against AIDS viral and other viral infections are presented.

Abstract: A multi-color image forming material which is in the form of multiple layers on a support, and having, at least two photosensitive layers, the farthest layer from the support being the uppermost photosensitive layer, the photosensitive layers being formed from a water-soluble resin having photocrosslinking ability with diazo resin, a photosensitive water-soluble, organic solvent insoluble diazo resin, and a water dispersible coloring agent which can produce a color tone, each photosensitive layer having a coloring agent which can produce a different color tone; and at least one intermediate layer, each intermediate layer being positioned between each photosensitive layer and the next adjacent photosensitive layer, the intermediate layer being formed from a hydrophobic, water-resistant, organic solvent softenable resin.

Abstract: A heat-sensitive recording material comprises a sheet substrate applied thereon with a heat-sensitive, color-developing layer containing as the main components a colorless or light-colored leuco dye, a developer for permitting said dye to develop a color by heating and a binder, in which the binder used is an ammonium salt of a diisobutylene/maleic anhydride copolymer is expressed in terms of the following general formula: ##STR1## wherein R stands for a diisobutylene group a part of said ammonium salt being substituted and modified by an ammonium salt comprising a primary, secondary or tertiary ethanol amine.

Abstract: Disclosed is a masking tape suitable for use in manufacturing a printed circuit board. The masking tape comprises a water soluble paper as a tape base material, and a water soluble adhesive agent applied to one side of the paper. A method of filling through-holes employing such a water soluble masking tape in a process of manufacturing a printed circuit board is also disclosed.

Abstract: (1) A hardenable coating composition for polypropylene resins, having a chlorinated polyolefin as a principal constitutional element provided partially a crosslinking reaction beforehand between carboxyl group or acid anhydride group of a chlorinated polyolefin (I) obtained by chlorinating, to a degree within a range from 10 wt % to 50 wt %, a polyolefin which is modified with one or two or more types of compounds selected from a group consisting of unsaturated polycarboxylic acids or their acid anhydrides and has a saponification value ranging from 6 to 60, and epoxy group of a compound or a resin (II) which has at least two epoxy groups per molecule.(2) A hardenable coating composition for polypropylene resins described in claim 1, wherein the weight ratio of chlorinated polyolefin (I) to the compound or the resin (II) which has epoxy groups is 100:0.5-50.

Abstract: A photo-curable resin composition containing urethane oligomer compounds represented by a following general formula (I) ##STR1## [wherein R.sub.1 indicates --H or --CH.sub.3. R.sub.2 indicates an alkylene group with or without side chain having 1 to 6 carbon atoms or --(--CH.sub.2 CH.sub.2 --O--).sub.m --CH.sub.2 CH.sub.2 --, m=1-5. R.sub.3 indicates a substituent selected from a group comprising ##STR2## n is a number selected from integers 1 to 10 so as the molecular weight of compound to be not more than 5000] as a part or the whole of base resin.

Abstract: An image-forming method, wherein the uppermost photosensitive layer of a photosensitive coated face of the multicolor image-forming material is subjected to (A) pattern exposure and the non-exposed area (non-image area) is removed by washing with water and is then dried. Also, an image-forming process, wherein the second photosensitive layer from the top of the photosensitive coated face of a multicolor image-forming material is subjected to (B) pattern exposure through the upper intermediate layer which is contacted with the photosensitive layer and immersed into the organic solvent which softens the resin in the intermediate layer and does not dissolve the components in the photosensitive layer before and after the photocrosslinking reaction except for area on which the image is already formed on the upper layer thereof, the non-exposed area (non-image area) of the second photosensitive layer is removed together with the upper intermediate layer thereof by washing with water and is then dried.

Abstract: A repeatedly usable and releasable sheet is coated thereon with an adhesive copolymer microspheres-containing aqueous suspension and polymer microparticles prepared by polymerization of one or more vinyl monomers. In the presence of a protective colloid comprising casein, the microspheres is prepared by aqueous suspension polymerization of (a) from 70 to 99.9 percent by weight of one or more monomers selected from the group consisting of alkyl acrylate esters and alkyl methacrylate esters, (b) from 0.1 to 10 percent by weight of one or more .alpha.-monoolefin carboxylic acids and (c) from 0 to 29.9 percent by weight of one or more vinyl monomers other than the foregoing (a) and (b).

Abstract: A process for the production of a laminated sheet is disclosed, which comprises impregnating a base paper for laminated sheet using a wood pulp having an .alpha.-cellulose content of 87.0% or more with a synthetic resin to prepare a prepreg and subjecting the prepreg to laminate molding by heat. A process for the production of a metal foil-clad laminated sheet is also disclosed, which comprises impregnating a base paper for laminated sheet using a wood pulp having an .alpha.-cellulose content of 87.0% or more with a synthetic resin to prepare a prepreg, piling up the prepreg, placing a metal foil one either one or both sides of the prepregs, and subjecting the resulting prepregs with metal foil to laminate molding by heat. The laminated sheet or metal foil-clad laminated sheet of this invention has not only excellent punchability but also excellent electric characteristics and heat resistance and hence, it is quite useful as a laminated sheet for high density printed wiring system.

Abstract: A repeatedly usable and releasable sheet is coated thereon with an adhesive copolymer microspheres-containing aqueous suspension and polymer microparticles prepared by polymerization of one or more vinyl monomers. In the presence of a protective colloid comprising casein, the microspheres is prepared by aqueous suspension polymerization of (a) from 70 to 99.9 percent by weight of one or more monomers selected from the group consisting of alkyl acrylate esters and alkyl methacrylate esters, (b) from 0.1 to 10 percent by weight of one or more .alpha.-monoolefin carboxylic acids and (c) from 0 to 29.9 percent by weight of one or more vinyl monomers other than the foregoing (a) and (b).

Abstract: A pressure-sensitive adhesive tape or sheet including a paper substrate, a release layer provided on at least one side of said substrate and comprising modified starch and/or starch, and a pressure-sensitive adhesive mass layer provided with respect to said release layer and containing an elastomeric polymer microspheres, said pressure-sensitive adhesive tape or sheet having an adhesion of no more than 150 g/cm.

Abstract: An adhesive tape or sheet including a paper substrate, a release layer provided on at least one side of said substrate and comprising modified starch and/or starch and an organic fluorine compound, and an adhesive mass layer provided with respect to said release layer and containing a minute and spherical elastomer polymer, said adhesive mass layer having an adhesion of no more than 150 g/cm.

Abstract: A heat-sensitive recording material is disclosed, comprising a support having thereon a heat-sensitive, color-forming layer mainly composed of as color-forming components a colorless or pale-colored leuco dye and an acidic compound capable of allowing said leuco dye to color develop by heating, wherein said heat-sensitive, color-forming layer comprises a color former comprising a fluoran derivative represented by the following general formula (I): ##STR1## wherein R.sub.1 and R.sub.2 each represents a lower alkyl group, and X represents a halogen atom, a lower alkyl group, a cyano group, or a nitro group, a developer comprising bis(p-hydroxyphenyl)sulfone or a derivative thereof represented by the following general formula (II): ##STR2## wherein R.sub.3 and R.sub.

Abstract: Acrylates represented by a following general formula (I). ##STR1## [wherein R.sub.1 and R.sub.2 indicate --OH or ##STR2## However, a case of R.sub.1 =R.sub.2 =--OH is excluded.] and manufacturing methods for the same.

Abstract: A novel urethane (meth)acrylate compound represented by a general formula shown below.

Abstract: A process is dislosed for producing a support suitable for use in the formation of polyurethane films, the support comprising a base and a releasing layer on the base comprising a polymeric mixture of 95 to 65 parts by weight of polypropylene and 5 to 35 parts by weight of polyethylene, which process comprises extrusion coating the base with said mixture through a T-die to form the releasing layer on the base, the temperature of the mixture as extruded through the T-die being controlled below 300.degree. C.