C08G65/2672

PROCESS FOR THE CONTINUOUS PRODUCTION OF POLYETHER POLYOLS

This invention relates to a process for the continuous production of polyether polyols, polyether polyols produced by the inventive continuous process and their use in polyurethane applications.

POLYOL COMPONENTS AND USE THEREOF FOR THE PRODUCTION OF RIGID POLYURETHANE FOAMS
20200048400 · 2020-02-13 · ·

This invention relates to a polyol component P), to a process for preparing rigid polyurethane foams by using said polyol component P) and also to the rigid polyurethane foams themselves.

PACKAGING COATING RESINS DERIVED FROM REACTIONS OF PHENOLS WITH POLYOLEFINIC TERPENES
20190345359 · 2019-11-14 · ·

A coated food or beverage contact article that has been or will be formed into a food or beverage container or container component, a method for making such containers or container components, coating compositions and polymers for use in such article or method. The coating composition comprises a polymer derived from or derivable from a polyphenol having two or more phenylene rings linked to or through an aliphatic or cycloaliphatic group or groups, wherein the polyphenol is a reaction product of a monophenol with a polyolefinic terpene. The polyphenol may be a diphenol and a reaction product of a monophenol with a diolefinic terpene. The terpene may be a cyclic terpene.

POLYPHENYLENE ETHER, PRODUCTION METHOD OF THE SAME, THERMOSETTING COMPOSITION, PREPREG, AND LAMINATE
20240270903 · 2024-08-15 · ·

An object of the present disclosure is to provide a polyphenylene ether with excellent solubility in general-purpose aromatic solvents and general-purpose ketone-based solvents and a production method of the same. A polyphenylene ether containing a repeating unit derived from the phenol of the formula (1), a method for producing the same, a thermosetting composition, a prepreg, and a laminate are provided.

Polyol components and use thereof for the production of rigid polyurethane foams
12146022 · 2024-11-19 · ·

This invention relates to a polyol component P), to a process for preparing rigid polyurethane foams by using said polyol component P) and also to the rigid polyurethane foams themselves.

Process for preparing high molecular weight polymers by polymerizing epoxide monomers

A process for polymerizing an epoxide monomer, preferably ethylene oxide, comprising carrying out the process in the presence of a catalytically active amount of a catalyst obtainable by a preparation process comprising admixing at least one alkaline earth metal, liquid ammonia, an alkylene oxide, which is optionally substituted by aromatic radicals, and an organic nitrile having at least one acidic hydrogen atom to prepare a slurry of modified alkaline earth hexammine in liquid ammonia; continuously transferring the slurry of modified alkaline earth hexammine in liquid ammonia into a stripper vessel and continuously evaporating ammonia, thereby accumulating the modified catalyst in the stripper vessel; and upon complete transfer of the slurry of modified alkaline earth hexammine into the stripper vessel, aging the modified catalyst to obtain the final polymerization catalyst; and a polymer obtainable by this process.

SHAPE-MEMORY POLYMER COMPRISING 6-ARM STRUCTURE COMPOUND, AND USE THEREOF
20250084212 · 2025-03-13 · ·

The present invention relates to a shape-memory polymer having a 6-arm structure and use thereof. The shape-memory polymer according to the present invention exhibits shape-memory properties by cross-linking, can control temperature for shape restoration through monomer control and has biocompatibility. As a material, it can be developed into a medical material such as a support for the outer wall of blood vessels.

PROCESS FOR THE CONTINUOUS PRODUCTION OF POLYETHER POLYOLS

This invention relates to a process for the continuous production of polyether polyols, polyether polyols produced by the inventive continuous process and their use in polyurethane applications.

Process for preparing a polyoxyalkylene carbonate polyol

The invention relates to a process for preparing a polyoxyalkylene carbonate polyol by reacting a polyoxyalkylene polyol with a cyclic carbonate in the presence of an amine catalyst. The invention further relates to polyoxyalkylene carbonate polyols obtainable using the method according to the invention and to a process for preparing polyurethanes by reacting the polyoxyalkylene carbonate polyols according to the invention with polyisocyanates.