The purpose of the present invention is to provide a photosensitive resin composition that yields a cured film having exceptional heat resistance, elongation, chemical resistance, permittivity, and dielectric tangent while being curable under low-temperature heat treatments, the percentage of film remaining after development being exceptional. To solve the above problem, the photosensitive resin composition of the present invention has the following configuration. Specifically, a photosensitive resin composition that contains a resin (A) and a photopolymerization initiator (B), said resin (A): containing one or more structural units selected from the group consisting of specific structural units represented by formula (1), formula (3), and formula (5); and also containing one or more structural units selected from the group consisting of structural units represented by formula (2), formula (4), and formula (6).

Compounds of formula (I) are photoinitiators or photosensitizers in a photopolymerizable composition: ##STR00001##
R.sub.1 represents a monovalent, linear, branched or cyclic, aliphatic hydrocarbon group having 1 to 20 carbon atoms, optionally substituted with substituent(s) selected from —Cl, —Br, —OH, ═O, —NH—CO—OR.sub.2, —NH—CO—R.sub.2 or free-radically or ionically polymerizable groups. Each R.sub.2 is independently —H or C.sub.1-6 alkyl; n is ≥1. If n=1, Z and Y are absent and X represents —OR.sub.3; if n is >1, Z represents —OR.sub.4—, Y represents —OR.sub.5— and X represents —H or —OH. R.sub.3 represents —H or R.sub.1; and R.sub.4 and R.sub.5 each independently represent a bivalent hydrocarbon group. The polymerizable moieties as optional substituents of R.sub.1 are polymerizable double or triple bonds, lactam, lactone and epoxide moieties, which are subjectable to ring-opening polymerization; and two of R.sub.1 to R.sub.5 may be linked to one another to form a ring or a dimer.

The present disclosure relates to polyurethane based switchable adhesives. In at least one embodiment, a switchable adhesive composition comprises an adhesive component, which is formed from at least one isocyanate and a material or materials capable of undergoing cross-linking with isocyanate other than by free radical polymerization.

The present invention discloses thiourea-containing dendrimers and thiourea-containing hyperbranched polymers, and respectively a preparation method for the thiourea-containing dendrimer and a preparation method for the thiourea-containing hyperbranched polymer, and a thiourea-containing dendrimer and a thiourea-containing hyperbranched polymer having increased water solubility prepared by using the thiourea-containing dendrimer and the thiourea-containing hyperbranched polymer as raw materials. Finally, disclosed are applications of the thiourea-containing dendrimers and the thiourea-containing hyperbranched polymers in the preparation of antitumor and antimicrobial drugs. The thiourea-containing dendrimer and the thiourea-containing hyperbranched polymer have a significant growth inhibitive effect on solid tumors and low toxicity to normal tissues, and thus can be used for preparing drugs for treating malignant tumors. The thiourea-containing dendrimer and the thiourea-containing hyperbranched polymer also have a good antimicrobial effect on various bacterial strains and thus can be used for preparing antiviral or antibacterial drugs.

The present invention relates to a pressure-sensitive adhesive composition. The pressure-sensitive adhesive composition of the present invention can provide a pressure-sensitive adhesive having low time-dependency of dependability and adhesion strength and having excellent interfacial adhesion strength. After being applied to an optical member such as a polarizing plate, the pressure-sensitive adhesive composition exhibits excellent interfacial adhesion strength and maintains excellent dependability without time-dependency.

Optically clear curable adhesive films that are heat conformable prior to setting include a reactive composition. The curable films are flexible and free-standing, and have a complex viscosity of greater than 100,000 poise (10,000 Pascal seconds) at 25° C. and less than 100 poise (10 Pascal seconds) at 85° C., prior to setting. The set film has an adhesive shear strength of greater than 100 Newtons per square centimeter (N/cm.sup.2) to a glass substrate when measured according to the Shear Adhesion Test Method. The reactive composition includes an ethylenically unsaturated polyester-containing oligomeric composition that is the reaction product of a saturated, amorphous co-polyester polyol and a compound with a terminal polyol-reactive group and a terminal ethylenically unsaturated group, a (meth)acrylate functional material, and at least one initiator.

The present invention is a method of curing an adhesive composition positioned at least partially under a light-absorbing layer. The method includes providing an adhesive composition, positioning the light-absorbing layer over a surface of the adhesive composition such that there is an exposed area of the adhesive composition and a covered area of the adhesive composition and irradiating the exposed area of the adhesive composition and the covered area of the adhesive composition at the surface at a dosage of between about 100 mJ/cm.sup.2 and about 10,000 mJ/cm.sup.2. The adhesive composition includes a solute (meth)acryolyl oligomer having a molecular weight of 4 to 30 k and a Tg of less than about 20° C., a diluents monomer component and a photoinitiator.

A fluorine-free treating composition that includes Component A and Component B, wherein: Component (A) includes one or more polymeric compounds derived from the polymerization of at least one (meth)acrylate monomer comprising at least one hydrocarbon group having from 1 to 60 carbon atoms and at least one isocyanate-derived group, and Component (C) includes one or more polycarbodiimide compounds.

To provide a curable resin composition capable of forming a coating film excellent in the weather resistance and the impact resistance with a high productivity even on a member having a complicated shape for outdoor use.

A curable resin composition containing the following fluorinated copolymer (A) and the following compound (B):

fluorinated copolymer (A): a fluorinated copolymer having a unit derived from a fluoroolefin, a unit having an ethylenic unsaturated group in its side chain, and a unit having a functional group, wherein the unit having a functional group is at least one member selected from a unit having a hydroxy group, a unit having a carboxy group and a unit having an alkoxysilyl group;

compound (B): a compound having an acryloyl group or methacryloyl group and at least two isocyanate groups in one molecule.

The invention relates to low-viscosity formulations of radiation-curable compounds, to processes for preparing them, to their use, and to inks, printing-inks, and print varnishes that comprise them.