Abstract: Disclosed is a curable resin which comprises at least one polymer selected from polymers each independently having a polymer chain represented by the following formula (I): ##STR1## wherein A to F are monomer units constituting a main chain of the polymer and are arranged in any order, and a to f are, respectively, wt % of A to F, based on the total weight of A to F; wherein each A is independently selected from cyclic olefin monomer units having no reactive group, each B is independently selected cyclic conjugated diene monomer units having no reactive group, each C to F is independently selected from comonomer units having no reactive group, and copolymerizable with A and B, wherein Q.sub.1 to Q.sub.6 are reactive groups, and wherein the average total number (J) of Q.sub.1 to Q.sub.6 of the at least one polymer satisfies: 1.ltoreq.(J).ltoreq.4, the polymer having an ME of from 1,000 to 5,000,000. A resin composition containing the curable resin is also disclosed.

Abstract: Disclosed is a resin composition comprising (.alpha.) at least one polymer selected from the group consisting of a non-modified cyclic monomer unit-containing polymer and a modified cyclic monomer unit-containing polymer having a number average molecular weight of from 10,000 to 5,000,000, wherein the cyclic monomer unit is derived from a cyclic conjugated diene, and (.beta.) at least one polymer other than the polymer (.alpha.), and wherein the polymer (.alpha.) is present in an amount of at least 1% by weight, based on the total weight of the polymers (.alpha.) and (.beta.). The molecular structure of the polymer (.alpha.) which is contained in the novel resin composition of the present invention and which is selected from a non-modified cyclic monomer unit-containing polymer and a modified cyclic monomer unit-containing polymer, wherein the cyclic monomer unit is derived from a cyclic conjugated diene, can be controlled with large freedom. Therefore by combining the polymer (.alpha.) with a polymer (.beta.

Abstract: Disclosed is a polymer containing a modified cyclic monomer unit, comprising a polymer chain represented by the following formula (I): ##STR1## wherein A to F are monomer units constituting a main chain of the polymer chain, in which monomer units A to F are arranged in any order, and l to q are, respectively, weight percentages of monomer units A to F, based on the total weight of monomer units A to F; A is selected from cyclic olefin monomer units, B is selected from cyclic conjugated diene monomer units, and C to F are monomer units copolymerizable with monomer units A and B, wherein each of S to X, which are modifying groups, is a functional group or an organic compound residue containing the functional group, with the functional group containing at least one member selected from oxygen, nitrogen, sulfur, silicon, phosphorus and halogen; and wherein s to x are, respectively, weight percentages of modifying groups S to X, based on the weight of the polymer, and wherein the polymer has a number average mole

Abstract: Disclosed is a polymer containing a cyclic olefin monomer unit, comprising a main chain represented by the formula: ##STR1## wherein A to F are monomer units constituting the main chain in which A to F are arranged in any order, and a to f are, respectively, weight percentages of A to F, based on the total weight of A to F; A to F are selected from cyclic olefin monomer units, cyclic conjugated diene monomer units, chain conjugated diene monomer units, vinyl aromatic monomer units, polar monomer units, and an ethylene monomer unit and .alpha.-olefin monomer units, respectively; and a to f satisfy the following requirements: 0.001.ltoreq.a.ltoreq.100, and 0.ltoreq.b, c, d, e, f.ltoreq.100, with the proviso that monomer unit A is present in an amount of from 0.

Abstract: Disclosed is a cyclic conjugated diene polymer comprising a main chain represented by the formula (I): ##STR1## wherein A to E are monomer units constituting the main chain in which A to E are arranged in any order, and l to p are, respectively, weight percentages of A to E, based on the total weight of A to E; A is selected from cyclic conjugated diene monomer units, B is selected from chain conjugated diene monomer units, C is selected from vinyl aromatic monomer units, D is selected from polar monomer units, and E is selected from an ethylene monomer unit and .alpha.-olefin monomer units; and l to p satisfy the following requirements: 0.5.ltoreq.l.ltoreq.100, 0.ltoreq.

Abstract: The present invention provides a novel polymeric composite material which contains at least two polymers selected from the group consisting of a polymer having a cyclic conjugated diene monomer unit and/or a cyclic olefin monomer unit and a modified polymer thereof. The novel composite material of the present invention can exhibit excellent thermal and mechanical properties while maintaining properties as a mono material so that it is widely applicable to major uses for polymer materials.

Abstract: A flame-resistant polyamide resin composition comprising components:(A) a polyamide or a blend of a polyamide with another polymer,(B) a flame retardant comprising a brominated styrene or styrene derivative polymer having acid anhydride groups, and(C) a flame retardant comprising a brominated polystyrene.

Abstract: Disclosed is an olefin polymer of having a number average molecular weight of 500 to 50,000 and having an acid anhydride group only at a terminal thereof, and a resin composition containing the olefin polymer. When the olefin polymer having an acid anhydride group only at a terminal thereof is blended with a polyamide, a resin composition having extremely improved toughness, particularly in tensile elongation as compared to the polyamide alone can be obtained.