Polyarylene oligomer compositions having improved adhesion to surfaces as compared to conventional polyarylene oligomers are useful in forming dielectric material layers in electronics applications.

A process to produce a polyolefin reactive telechelic pre-polymer comprising reacting alkyl-c/5-cyclooctene and optionally czs-cyclooctene, in the presence of a multifunctional chain transfer agent possessing two or more amino groups wherein the two or more amino groups are protected by one or more protecting groups under ring opening metathesis polymerization conditions to form a dicarbamate telechelic unsaturated polyolefm pre-polymer is provided.

The present invention is a hydrogenated syndiotactic crystalline dicyclopentadiene ring-opening polymer having a melting point of 280 C. or higher and a syndiotacticity of higher than 90%, and a syndiotactic dicyclopentadiene ring-opening polymer, and a method for producing the syndiotactic dicyclopentadiene ring-opening polymer, and a method for producing the hydrogenated syndiotactic crystalline dicyclopentadiene ring-opening polymer, and a formed article, and a method for producing the formed article.

One aspect of the invention provides a hydrogenated syndiotactic crystalline dicyclopentadiene ring-opening polymer having a high melting point of 280 C. or higher, and a syndiotacticity of higher than 90%.

The present invention provides: a copolymer (A) which is a copolymer obtained by copolymerizing one or plural cycloolefin monomers and one or plural acyclic olefin monomers, or by copolymerizing two or more cycloolefin monomers, wherein a glass transition temperature (Tg) is 100 C. or higher, a refractive index is 1.545 or higher, and an Abbe's number is 50 or larger; a polymer (B) selected from: a ring-opening homopolymer obtained by ring-opening polymerization of only a monomer represented by formula (I), a ring-opening copolymer obtained by ring-opening copolymerization of the monomer represented by formula (I) and a monomer capable of ring-opening copolymerization with the monomer represented by formula (I), a hydrogenated product of the ring-opening homopolymer and a hydrogenated product of the ring-opening copolymer; a forming material containing the copolymer (A) or the polymer (B); and a resin formed article obtained by forming the forming material.

##STR00001##

The present invention is a resin formed article comprising a hydrogenated syndiotactic crystalline dicyclopentadiene ring-opening polymer with an initial melting temperature of 260 C. or higher, a melting point of lower than 280 C. and a syndiotacticity of higher than 90%, and a resin film, and an injection formed article. One aspect of the invention provides a resin formed article, a resin film and an injection formed article which sufficiently reflect the properties of the hydrogenated crystalline dicyclopentadiene ring-opening polymer.

The present invention provides a hydrogenated syndiotactic crystalline dicyclopentadiene ring-opening polymer having a melting point of lower than 280 C., an initial melting temperature of 260 C. or higher and a syndiotacticity of higher than 90%, and a syndiotactic dicyclopentadiene ring-opening polymer, and a method for producing the syndiotactic dicyclopentadiene ring-opening polyme, and a method for producing the hydrogenated syndiotactic crystalline dicyclopentadiene ring-opening polymer. The hydrogenated syndiotactic crystalline dicyclopentadiene ring-opening polymer has a sufficiently high initial melting temperature, excellent heat resistance and advantageous industrial producibility. The syndiotactic dicyclopentadiene ring-opening polymer is excellent in solution stability after polymerization reaction and can be converted into the hydrogenated product by hydrogenation reaction.

This invention relates to compositions and methods for improving the impact properties of polymer-matrix composites and to improving the adhesion of resin compositions to substrate materials. More particularly, the invention relates to compositions and methods for improving the impact properties of ring opening metathesis polymerization (ROMP) polymer-matrix composites and to improving the adhesion of ROMP compositions to substrate materials using adhesion promoters containing at least two isocyanate groups and functional elastomers comprising a maleic anhydride grafted styrene-ethylene/butylene-styrene hydrogenated copolymer in a resin composition. The polymer products produced via ROMP reactions of the invention may be utilized for a wide range of materials and composite applications. The invention has utility in the fields of polymer and materials chemistry and manufacture.

A molecule includes at least one moiety represented by: ##STR00001##
where R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are independently selected from hydride group and groups different from hydride group, and X.sup.1 and X.sup.2 are bridging moieties including a carbon atom or a heteroatom.

Arylcyclobutene polymers having improved physical properties, such as tensile strength, are provided. Compositions and methods for coating such arylcyclobutene polymers are also provided.

Arylcyclobutene polymers having improved physical properties, such as elongation, are provided. Compositions and methods for coating such arylcyclobutene polymers are also provided.