Embodiments in accordance with the present invention encompass compositions encompassing a procatalyst and a thermal or photoactivator along with one or more monomers which undergo vinyl addition polymerization when said composition is heated to a temperature from 50 C. to 100 C. to form a substantially transparent film. The monomers employed therein have a range of refractive index from 1.4 to 1.6 and thus these compositions can be tailored to form transparent films of varied refractive indices. Accordingly, compositions of this invention are useful in various opto-electronic applications, including as coatings, encapsulants, fillers, leveling agents, among others.

The invention is a resin composition comprising an alicyclic-structure-containing polymer, a hindered-phenol-based antioxidant and a hindered amine compound, wherein the hindered-phenol-based antioxidant is a compound having a group represented by the specific formula, the hindered amine compound is a compound having a group represented by the specific formula in its molecule, a content of the hindered-phenol-based antioxidant is 0.1 to 2.0 parts by weight based on 100 parts by weight of the alicyclic-structure-containing polymer, and a content of the hindered amine compound is more than 0 to 1.0 part by weight based on 100 parts by weight of the alicyclic-structure-containing polymer, and a resin formed article, and an optical member. One aspect of the invention provides a resin composition which is hardly burned during forming, has excellent long-term thermal yellowing resistance and also suppresses adhesion of foreign matters due to charge, a resin formed article, and an optical member.

The invention is a resin composition comprising an alicyclic-structure-containing polymer, a hindered-phenol-based antioxidant and a hindered amine compound, wherein the hindered-phenol-based antioxidant is a compound having a group represented by the specific formula, the hindered amine compound is a compound having a group represented by the specific formula in its molecule, a content of the hindered-phenol-based antioxidant is 0.1 to 2.0 parts by weight based on 100 parts by weight of the alicyclic-structure-containing polymer, and a content of the hindered amine compound is more than 0 to 1.0 part by weight based on 100 parts by weight of the alicyclic-structure-containing polymer, and a resin formed article, and an optical member. One aspect of the invention provides a resin composition which is hardly burned during forming, has excellent long-term thermal yellowing resistance and also suppresses adhesion of foreign matters due to charge, a resin formed article, and an optical member.

The disclosure is related to compositions including viscoelastic materials. The compositions are suitable for use in earpieces such as in-ear earpieces.

Embodiments encompassing a series of compositions containing polymers of norbornadiene and maleic anhydride monomers which are useful in forming a variety of photopatternable structures are disclosed and claimed. The compositions are useful as permanent dielectric materials. More specifically, embodiments encompassing compositions containing a series of ter- and tetrapolymers of a variety of norbornadiene, maleic anhydride, maleimide and norbornene-type cycloolefinic monomers in which maleic anhydride is fully or partially hydrolyzed (i.e., ring opened and fully or partially esterified), and a photoactive compound are disclosed, which are useful in forming permanent dielectric materials having utility in a variety of electronic material applications, among various other uses.

Embodiments encompassing a series of compositions containing polymers of norbornadiene and maleic anhydride monomers which are useful in forming a variety of photopatternable structures are disclosed and claimed. The compositions are useful as permanent dielectric materials. More specifically, embodiments encompassing compositions containing a series of ter- and tetrapolymers of a variety of norbornadiene, maleic anhydride, maleimide and norbornene-type cycloolefinic monomers in which maleic anhydride is fully or partially hydrolyzed (i.e., ring opened and fully or partially esterified), and a photoactive compound are disclosed, which are useful in forming permanent dielectric materials having utility in a variety of electronic material applications, among various other uses.

Embodiments in accordance with the present invention encompass compositions containing a polycycloolefinic polymer and at least one diazirine compound as described herein which when subjected to a suitable temperature or actinic radiation undergoes crosslinked network to form a three-dimensional insulating article which exhibits hitherto unattainable low dielectric constant and low-loss properties, and very high thermal properties. The compositions of this invention may additionally contain hydrogenated tackifiers, which provide much improved adhesive properties and are suitable in a number of opto-electronic applications including copper-clad laminates, among others. The compositions of this invention are also useful as insulating materials in millimeter wave radar antennas, among others.

Embodiments in accordance with the present invention encompass compositions containing a polycycloolefinic polymer and at least one diazirine compound as described herein which when subjected to a suitable temperature or actinic radiation undergoes crosslinked network to form a three-dimensional insulating article which exhibits hitherto unattainable low dielectric constant and low-loss properties, and very high thermal properties. The compositions of this invention may additionally contain hydrogenated tackifiers, which provide much improved adhesive properties and are suitable in a number of opto-electronic applications including copper-clad laminates, among others. The compositions of this invention are also useful as insulating materials in millimeter wave radar antennas, among others.

The present invention provides a compound represented by following formula (1),

##STR00001##

wherein R.sup.1 represents a 2n-valent group having 1 to 30 carbon atoms, each of R.sup.2 to R.sup.5 independently represents a straight, branched or cyclic alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, an alkoxy group having 1 to 30 carbon atoms, a halogen atom, a thiol group or a hydroxyl group, provided that at least one selected from R.sup.1 to R.sup.5 represents a group including an iodine atom and at least one R.sup.4 and/or at least one R.sup.5 represent/represents one or more selected from the group consisting of a hydroxyl group and a thiol group, each of m.sup.2 and m.sup.3 independently represents an integer of 0 to 8, each of m.sup.4 and m.sup.5 independently represents an integer of 0 to 9, provided that m.sup.4 and m.sup.5 do not represent 0 at the same time, n represents an integer of 1 to 4, and each of p.sup.2 to p.sup.5 independently represents an integer of 0 to 2.

The present invention provides a compound represented by following formula (1),

##STR00001##

wherein R.sup.1 represents a 2n-valent group having 1 to 30 carbon atoms, each of R.sup.2 to R.sup.5 independently represents a straight, branched or cyclic alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, an alkoxy group having 1 to 30 carbon atoms, a halogen atom, a thiol group or a hydroxyl group, provided that at least one selected from R.sup.1 to R.sup.5 represents a group including an iodine atom and at least one R.sup.4 and/or at least one R.sup.5 represent/represents one or more selected from the group consisting of a hydroxyl group and a thiol group, each of m.sup.2 and m.sup.3 independently represents an integer of 0 to 8, each of m.sup.4 and m.sup.5 independently represents an integer of 0 to 9, provided that m.sup.4 and m.sup.5 do not represent 0 at the same time, n represents an integer of 1 to 4, and each of p.sup.2 to p.sup.5 independently represents an integer of 0 to 2.