Abstract: A method for preparing an article includes at least a first component of a polyolefin in conjunction with a second component of a polymer made by ring-opening metathesis polymerisation of norbornene type monomers. The method includes pre-treating a surface of the first component, applying a ring-opening metathesis polymerisable mixture of norbornene type monomers and a catalyst to the surface, and curing the ring-opening metathesis polymerisable mixture in contact with the surface, wherein the ring-opening metathesis polymerisable mixture has a ?1000 at 30° C. of more than 9 sec. Articles such as a pipe line field joint or a protective element for a concrete tunnel lining element can be made using the method.

Abstract: Methods for fabricating three-dimensional objects by 3D-inkjet printing technology are provided. The methods utilize curable materials that polymerize via ring-opening metathesis polymerization (ROMP) for fabricating the object, in combination with acid-activatable pre-catalyst and an acid generator activator. Kits containing modeling material formulations usable in the methods are also provided.

Abstract: The invention relates to a field joint coating material based on a fast curable olefin liquid formulation and a process of making a field joint wherein this coating material is used.

Abstract: The present invention relates to sizing compositions, to glass fibers at least partially coated with such sizing compositions, to a variety of fiber glass products at least partially coated with such sizing compositions, and to composites formed from cycloolefins and reinforced with glass fibers at least partially coated with sizing compositions of the present invention. In one non-limiting embodiment, a sizing composition for glass fibers comprises a film-former comprising a polymer, wherein the repeating unit of the polymer comprises at least four carbon atoms and at least one carbon-carbon double bond, and a silane.

Abstract: Methods for fabricating three-dimensional objects by 3D-inkjet printing technology are provided. The methods utilize curable materials that polymerize via ring-opening metathesis polymerization (ROMP) for fabricating the object, in combination with acid-activatable pre-catalyst and an acid generator activator. Kits containing modeling material formulations usable in the methods are also provided.

Abstract: A method for preparing an article includes at least a first component of a polyolefin in conjunction with a second component of a polymer made by ring-opening metathesis polymerisation of norbornene type monomers. The method includes pre-treating a surface of the first component, applying a ring-opening metathesis polymerisable mixture of norbornene type monomers and a catalyst to the surface, and curing the ring-opening metathesis polymerisable mixture in contact with the surface, wherein the ring-opening metathesis polymerisable mixture has a ?1000 at 30° C. of more than 9 sec. Articles such as a pipe line field joint or a protective element for a concrete tunnel lining element can be made using the method.

Abstract: There is provided a curable composition comprising (A) a cyclic olefin; (B) a metathesis catalyst for polymerizing the cyclic olefin; (C) 0.1-30 wt. % of a compound comprising at least one vinyl group; and (D) 0.1-10 wt. % of a curing agent for compound (C), wherein the wt. % are relative to the total weight of the composition. The composition provides a desirable combination of workability, toughness and heat resistance. Also provided is a molded article comprising the composition and reinforcing fibers, and a method of manufacturing the same.

Abstract: The present invention relates to sizing compositions, to glass fibers at least partially coated with such sizing compositions, to a variety of fiber glass products at least partially coated with such sizing compositions, and to composites formed from cycloolefins and reinforced with glass fibers at least partially coated with sizing compositions of the present invention. In one non-limiting embodiment, a sizing composition for glass fibers comprises a film-former comprising a polymer, wherein the repeating unit of the polymer comprises at least four carbon atoms and at least one carbon-carbon double bond, and a silane.

Abstract: There is provided a curable composition comprising (A) a cyclic olefin; (B) a metathesis catalyst for polymerizing the cyclic olefin; (C) 0.1-30 wt. % of a compound comprising at least one vinyl group; and (D) 0.1-10 wt. % of a curing agent for compound (C), wherein the wt. % are relative to the total weight of the composition. The composition provides a desirable combination of workability, toughness and heat resistance. Also provided is a molded article comprising the composition and reinforcing fibers, and a method of manufacturing the same.

Abstract: The invention relates to a field joint coating material based on a fast curable olefin liquid formulation and a process of making a field joint wherein this coating material is used.

Abstract: The invention relates to a protective element for connecting to a concrete element (10) of a tunnel lining and having at least one protective portion (21, 22, 23) which has a side which faces the concrete element (10) and on which is provided at least one connecting element (24, 25, 26, 27, 28) for producing a durable connection of the protective portion (21, 22, 23) to the concrete element (10), wherein the protective portion (21, 22, 23) has a base portion (21) and/or a wall portion (22, 23) and at least one region consisting of at least one plastics material, and the protective element has at least one seal (30) which is connected in a single piece to the protective portion (21, 22, 23), wherein the connection is gas-tight and liquid-tight, and the single-piece connection of the seal to the protective portion is produced by injection moulding with the at least one plastics material and thereby forms a first portion of the base portion (21) and/or of the wall portion (22, 23) of the protective portion (21,

Abstract: The invention relates to a field joint coating material based on a fast curable olefin liquid formulation and a process of making a field joint wherein this coating material is used.

Abstract: The present invention relates to a polycycloolefin (PCO) thermoset network assembly and a process for its preparation obtainable by polymerising a first reactive composition comprising a norbornene-type cycloolefin monomer in the presence of a Mo- or W-catalyst to obtain a PCO-Mo/W-network and polymerising a second reactive composition comprising a nor-bornene-type cycloolefin monomer in the presence of a Ru-catalyst on said PCO-Mo/W-network to obtain a PCO thermoset network assembly.

Abstract: The present invention relates to a polycycloolefin (PCO) thermoset network assembly and a process for its preparation obtainable by polymerising a first reactive composition comprising a norbornene-type cycloolefin monomer in the presence of a Mo- or W-catalyst to obtain a PCO-Mo/W-network and polymerising a second reactive composition comprising a nor-bornene-type cycloolefin monomer in the presence of a Ru-catalyst on said PCO-Mo/W-network to obtain a PCO thermoset network assembly.

Abstract: A thermoplastic film, adapted for adhesion, composed of a compound of polyamide-based thermoplastic elastomers and of copolymers of olefins, the latter preferably being constituted of at least two different monomers of olefins. The composition of the thermoplastic film is such that the thermoplastic elastomers represent at least 50% and preferably 60% of the total weight of the compound.

Abstract: The invention relates to adhesion of various elements of a structure, such as a ski, consisting of an assembly of at least one first element and a second element by the action of an adhesive layer made of resin or foam, by interspersing at least one thermoplastic film, adapted for adhesion, and composed of a compound of polyamide-based thermoplastic elastomers and of copolymers of olefins, the latter preferably being constituted of at least two different monomers of olefins, between the adhesive layer and the junction surface of the first element. The composition of the thermoplastic film is such that the thermoplastic elastomers represent at least 50% and preferably 60% of the total weight of the compound.

Abstract: A process for manufacturing a ski, and a ski manufactured by the process. The process according to the invention includes at least the following steps for manufacturing a ski whose body includes a core covered with a shell, wherein the shell is a composite sub-assembly: positioning the sub-assembly adjacent the cavity of a mold; positioning the core adjacent the shell; and exerting a force against the core to thereby force the shell within the mold cavity. In a preferred embodiment, the sub-assembly includes at least one layer of a filling material, preferably a thermoplastic material, which is caused to soften and flow under predetermined temperature and pressure conditions. In a modified embodiment, the mold cavity includes a depression or a projection on, for example, its lower surface which thereby produces a corresponding projection or depression, respectively, on the upper surface of the ski.

Abstract: A ski comprising an upper decoration and protection subassembly, and a lower mechanical assembly, and the process of its manufacture. The decoration and protection sub-assembly is a double layer comprised of a polyamide, a copolymer of styrene, and either of carboxylic acid or its anhydride or a mixture containing those copolymers. This double layer can be coextruded, and it has excellent adhesive properties with the lower mechanical subassembly during the ski molding operation.

Abstract: A process for manufacturing a ski, and a ski manufactured by the process. The process according to the invention includes at least the following steps for manufacturing a ski whose body includes a core covered with a shell, wherein the shell is a composite sub-assembly: positioning the sub-assembly adjacent the cavity of a mold; positioning the core adjacent the shell; and exerting a force against the core to thereby force the shell within the mold cavity. In a preferred embodiment, the sub-assembly includes at least one layer of a filling material, preferably a thermoplastic material, which is caused to soften and flow under predetermined temperature and pressure conditions. In a modified embodiment, the mold cavity includes a depression or a projection on, for example, its lower surface which thereby produces a corresponding projection or depression, respectively, on the upper surface of the ski.

Abstract: A ski having a lower sliding surface and a pair of opposite lower edge portions; an upper surface; a central zone, a front contact zone and a rear contact zone; a pair of lateral surfaces on opposed sides of the ski, each of the pair of lateral surfaces extending between the upper surface and a respective one of the pair of opposite lower edge portions of the lower sliding surface; at least one of the pair of lateral surfaces being disposed, with respect to the lower sliding surface, to form an angle, in transverse cross-section, between a line representative of the at least one of the pair of lateral surfaces and a line extending between the pair of opposite lower edge portions, the angle decreasing continuously between said central zone and at least one of the front contact zone and the rear contact zone. The body of the ski can include a core which extends substantially the length of the body and a casing substantially surrounding the core for establishing the mechanical resistance properties of the ski.