C08G8/12

Compositions and process for stabilizing phenolic resins containing calixarenes
11192973 · 2021-12-07 · ·

This invention relates to compositions and a process for stabilizing or solubilize a phenolic resin containing a mixture of linear phenolic resins and calixarenes. The process comprises contacting the phenolic resin with an epoxide, to at least partially alkoxylate the phenolic hydroxyl groups of the calixarenes. This process forms a stabilized or solubilized phenolic resin with an increased solubility in a hydrocarbon solvent.

CONTINUOUS PRODUCTION OF POLYURETHANE PREPOLYMERS

Described herein is a continuous process for producing polyurethane prepolymers in a residence time reactor with plug flow. Also described herein is a method of using these prepolymers for producing polyurethanes.

CONTINUOUS PRODUCTION OF POLYURETHANE PREPOLYMERS

Described herein is a continuous process for producing polyurethane prepolymers in a residence time reactor with plug flow. Also described herein is a method of using these prepolymers for producing polyurethanes.

PROCESSES FOR PREPARING CALIXARENES

This invention relates to a process for preparing a calixarene compound by reacting a phenolic compound and an aldehyde in the presence of at least one nitrogen-containing base as a catalyst to form the calixarene compound. The invention also relates to processes for high-yield, high solid-content production of a calixarene compound, with high selectivity toward a high-purity calix[8]arene compound, without carrying out a recrystallization step.

PROCESSES FOR PREPARING CALIXARENES

This invention relates to a process for preparing a calixarene compound by reacting a phenolic compound and an aldehyde in the presence of at least one nitrogen-containing base as a catalyst to form the calixarene compound. The invention also relates to processes for high-yield, high solid-content production of a calixarene compound, with high selectivity toward a high-purity calix[8]arene compound, without carrying out a recrystallization step.

Methods of Using Ionic Liquids as Demulsifiers
20220169929 · 2022-06-02 ·

A method of demulsifying an emulsion with an ionic liquid having a nitrogen or phosphorus cation.

Methods of Using Ionic Liquids as Demulsifiers
20220169929 · 2022-06-02 ·

A method of demulsifying an emulsion with an ionic liquid having a nitrogen or phosphorus cation.

Resin composition, and pre-preg, metal-clad laminate and printed circuit board prepared using the same

A resin composition is provided. The resin composition comprises the following components: (A) a halogen-free epoxy resin; (B) a hardener; and (C) a phosphorus-containing phenolic resin of the following formula (I): ##STR00001##
wherein m, n, l, R.sub.1, and R.sub.2 are as defined in the specification.

Resin composition, and pre-preg, metal-clad laminate and printed circuit board prepared using the same

A resin composition is provided. The resin composition comprises the following components: (A) a halogen-free epoxy resin; (B) a hardener; and (C) a phosphorus-containing phenolic resin of the following formula (I): ##STR00001##
wherein m, n, l, R.sub.1, and R.sub.2 are as defined in the specification.

Processes for preparing calixarenes

This invention relates to a process for preparing a calixarene compound by reacting a phenolic compound and an aldehyde in the presence of at least one nitrogen-containing base as a catalyst to form the calixarene compound. The invention also relates to processes for high-yield, high solid-content production of a calixarene compound, with high selectivity toward a high-purity calix[8]arene compound, without carrying out a recrystallization step.