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.

The present invention is a resin composition comprising a cycloolefin resin and at least two hydrogenated styrene-based thermoplastic elastomers, wherein a content of the cycloolefin resin is 50 to 90 wt % based on a total amount of the cycloolefin resin and the hydrogenated styrene-based thermoplastic elastomers, and a melt volume rate of the resin composition at 260 C. is higher than that of the cycloolefin resin at 260 C., and a resin formed article. One aspect of the invention provides a resin composition that exhibits excellent transparency, impact resistance and melt fluidity, as well as a resin formed article obtained by forming this resin composition. The resin formed article of the present invention is preferably used as a drug container, a medical instrument or the like, since it exhibits excellent transparency and impact resistance.

In an example, a process includes polymerizing a mixture that includes an ethylene monomer, a propylene monomer, and a diene monomer to form an ethylene-propylene-diene (EPDM) terpolymer using ring-opening metathesis polymerization (ROMP). The process further includes chemically reacting the EPDM terpolymer with a norbornene-based phosphinate cross-linking material to form a flame-retardant, cross-linked EPDM rubber.

A compound of the formula II (I) in which X is substituted pyrrolide with the general structure of (II) in which R.sup.a-R.sup.d are independently selected from H, C1-C4 alkyl, C1-C4 alkoxy, aryl, aryloxy, dialkylamino, diarylamino, halogen, trifluoromethyl, cyano, nitro, sulfonyl and sulfinyl. Y is C1-C6 alkoxy, C1-C10 aryloxy, optionally substituted; R.sup.1 is selected from H, C1-C12 alkyl and 5- to 18-membered aryl, optionally substituted; R.sup.2 is selected from C1-C12-alkyl, 5- to 18-membered aryl, optionally substituted; R.sup.3 is selected from C1-C12 alkyl, 5- to 18-membered aryl, optionally substituted; and 15 12.sup.4-R11 are independently selected from H, C1-C4 alkyl and halogen. The compounds are particularly effective precursors of metathesis catalysts for the polymerisation of dicyclopentadiene.

##STR00001##

The present invention relates to compositions comprising at least one cyclic olefin, at least one metal carbene olefin metathesis catalyst, and dicumyl peroxide. The present invention relates to a method of making ROMP polymers and articles of manufacture with improved resistance to hydrocarbon fluids. Particularly the invention relates to ROMP polymer compositions with improved resistance to hydrocarbon fluids. Such ROMP polymers and ROMP polymer compositions can be used in a variety of materials and composite applications.

F.sup.1 is formula (IIa) and F.sup.2 is formula (IIb):

##STR00001## g and d are 0, 1, 2 or 3; R.sup.14 and R.sup.15 are C.sub.1-C.sub.4 or a cyclohexyl radical; R.sup.1 to R.sup.12 represents hydrogen or alkyl with 1 to 22 carbon atoms; x and y are integers, x+y is 0 to 2; R.sup.13 is oxygen or sulphur or divalent CH.sub.2 n1, n2, m, p1 and p2 are an integer or equal to 0 and such that the molecular weight Mn of the polymer of formula (I) is between 400 and 100 000 g/mol; a process for preparation of the polymer; and use as adhesive in mixture with an amino compound with at least two amine groups.

##STR00002##

The present disclosure relates to polymers, methods for polymer synthesis, and methods of modifying the backbone of said polymers. Modification of the polymer backbone via a sigmatropic rearrangement allows facile entry into new, highly ordered polymers.

Disclosed are methods, compositions, reagents, systems, and kits to prepare and utilize branched multi-functional macromonomers, which contain a ring-opening metathesis polymerizable norbornene group, one or more reactive sites capable of undergoing click chemistry, and a terminal acyl group capable of undergoing a coupling reaction; branched multi-cargo macromonomers; and the corresponding polymers are disclosed herein. Various embodiments show that the macromonomers and polymers disclosed herein display unprecedented control of cargo loading of agents. These materials have the potential to be utilized for the treatment of diseases and conditions such as cancer and hypertension.

Described herein are compositions having an eight-membered monocyclic unsaturated hydrocarbon, methods and system to separate the eight-membered monocyclic unsaturated hydrocarbon from a hydrocarbon mixture including additional nonlinear unsaturated C.sub.8H.sub.2m hydrocarbons with 4m8, by contacting the hydrocarbon mixture with a 10-ring pore molecular sieve having a sieving channel with a 10-ring sieving aperture with a minimum crystallographic free diameter greater than 3 and a ratio of the maximum crystallographic free diameter to the minimum crystallographic free diameter between 1 and 2, the molecular sieve having a T1/T2 ratio 20:1 wherein T1 is an element independently selected from Si and Ge, and T2 is an element independently selected from Al, B and Ga, the 10-ring pore molecular sieve further having a counterion selected from NH.sub.4.sup.+, Li.sup.+, Na.sup.+, K.sup.+ and Ca.sup.++.

A reactant composition for forming a polymer via metal-free ring-opening metathesis polymerization may comprise a stabilizer, a stabilizing reactant comprising a stabilizing moiety covalently bound to a reactant moiety, or both; wherein the stabilizer is a halogenated alcohol and the stabilizing moiety is derived from a halogenated alcohol. The reactant composition further comprises a strained cyclic unsaturated monomer; an initiator; a mediator; and optionally, one or more of a co-monomer, a crosslinker, and a chain transfer agent.