C08G2261/418

Self-assembled structure and membrane comprising block copolymer and process for producing the same by spin coating (Va)

Disclosed are self-assembled structures formed from a self-assembling diblock copolymer of the formula (I): ##STR00001##
wherein R.sup.1-R.sup.4, n, and m are as described herein, which find use in preparing porous membranes. In an embodiment, the diblock copolymer is present in the self-assembled structures in a cylindrical morphology. Also disclosed is a method of preparing a self-assembled structure, which involves spin coating a polymer solution containing the diblock copolymer to obtain a thin film, followed by solvent annealing of the film.

Membrane comprising self-assembled block copolymer and process for producing the same by hybrid casting (IIb)

Disclosed are membranes formed from self-assembling block copolymers, for example, a diblock copolymer of the formula (I): ##STR00001##
wherein R.sup.1-R.sup.4, n, and m are as described herein, which find use in preparing nanoporous membranes. Embodiments of the membranes contain the block copolymer that self-assembles into a cylindrical morphology. Also disclosed is a method of preparing such membrane which involves hybrid casting a polymer solution containing the block copolymer to obtain a thin film, followed by evaporation of some of the solvent from the thin film, and coagulating the resulting this film in a bath containing a nonsolvent or poor solvent for the block copolymer.

Self-assembled structure and membrane comprising block copolymer and process for producing the same by spin coating (IIIa)

Disclosed are self-assembled structures formed from self-assembling diblock copolymers of the formula (I): ##STR00001##
wherein R.sup.1-R.sup.4, n, and m are as described herein, which find use in preparing nanoporous membranes. In embodiments of the self-assembled structure, the block copolymer self-assembles into a cylindrical morphology. Also disclosed is a method of preparing such self-assembled structure which involves spin coating a polymer solution containing the diblock copolymer to obtain a thin film, followed by solvent annealing of the film. Further disclosed is a method of preparing porous membranes from the self-assembled structures.

THERMAL INSULATION

The present invention is directed to addressing one or more of the aforementioned concerns and relates to thermal insulation materials and thermal insulation material compositions and methods for thermally insulating pipelines and associated equipment, structures, and objects used in offshore drilling. The present invention is directed to articles of manufacture comprising the thermal insulation materials and/or thermal insulation material compositions of the invention. More particularly the present invention relates to the use of ring opening metathesis polymerization polymers (ROMP polymers) and/or ROMP polymer composites for thermally insulating pipelines and associated equipment, structures, and objects used in offshore oil drilling.

Z-selective metathesis catalysts

A novel chelated ruthenium-based metathesis catalyst bearing an N-2,6-diisopropylphenyl group is reported and displays near-perfect selectivity for the Z-olefin (>95%), as well as unparalleled TONs of up to 7,400, in a variety of homodimerization and industrially relevant metathesis reactions. This derivative and other new catalytically-active species were synthesized using an improved method employing sodium carboxylates to induce the salt metathesis and CH activation of these chelated complexes. All of these new ruthenium-based catalysts are highly Z-selective in the homodimerization of terminal olefins.

USE OF PARTICULAR POLYMERS AS CHARGE STORAGE MEANS

The present invention relates to polymers and to the use thereof in the form of active electrode material or in an electrode slurry as electrical charge storage means, the electrical charge storage means especially being secondary batteries. The secondary batteries are especially notable for high cell voltages, and high capacities after undergoing several charging and discharging cycles, and simple and scalable processing and production methods (for example by means of screen printing).

MOLECULAR SIEVES MEDIATED UNSATURATED HYDROCARBON SEPARATION AND RELATED COMPOSITIONS, MATERIALS, METHODS AND SYSTEMS

Described herein are compositions having an eight-membered monocyclic unsaturated hydrocarbon, methods and system to separate the eight-membered monocyclic unsaturated hydrocarbon at 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.++.

DEGRADABLE POLYMERS OF A CYCLIC SILYL ETHER AND USES THEREOF

The present disclosure provides cyclic silyl ethers of the formula:

##STR00001##

and salts thereof. The cyclic silyl ethers may be useful as monomers for preparing polymers. Also described herein are polymers prepared by polymerizing a cyclic silyl ether and optionally one or more additional monomers. The polymers may be degradable (e.g., biodegradable). One or more OSi bonds of the polymers may be the degradation sites. Also described herein are compositions and kits including the cyclic silyl ethers or polymers; methods of preparing the polymers; and methods of using the polymers, compositions, and kits.

FLAME RETARDANT THERMOPLASTIC RESIN COMPOSITION, SHAPED PRODUCT, AND STRETCHED FILM
20250084207 · 2025-03-13 · ·

Provided is a flame retardant thermoplastic resin composition having increased flame retardancy while also having improved moisture resistance. The flame retardant thermoplastic resin composition contains a thermoplastic resin and a bis(phosphine oxide) compound represented by the following formula (1). In formula (1), R.sup.1 is an optionally substituted alkylene group, an optionally substituted arylene group, or a divalent organic group represented by a formula: -Q.sup.1-Ar-Q.sup.2- (Ar is an optionally substituted arylene group and Q.sup.1 and Q.sup.2 are each, independently of each other, an optionally substituted alkylene group having a carbon number of not less than 1 and not more than 10), and R.sup.2 to R.sup.5 are each, independently of one another, an optionally substituted alkyl group, an optionally substituted aryl group, or an optionally substituted alkoxy group.

##STR00001##

Coating compositions

This invention relates to compositions suitable for use as coatings. More particularly, this invention relates to compositions suitable for use as industrial coatings such as anti-corrosion coatings, protective coatings and adhesive coatings. This invention relates to compositions and methods for coating substrates. More particularly, the invention relates to coating compositions and methods for coating substrates, where the coating compositions comprise polymerized olefins and cyclic olefins, via different chemical transformations. The invention also relates to methods of applying the coatings to the substrates.