OXYGEN ACCEPTING PARTITIONED RESIN GRANULES Russian patent published in 2010 - IPC B29B9/12 B29B13/02 C08J3/12 C08K5/00 

FIELD: chemistry.

SUBSTANCE: invention relates to a granule used in making multi-component industrial articles with improved barrier properties and a method for thermal treatment of said granule. The granule has two sections. The first section contains an oxygen-sensitive component which does react with oxygen before bonding with a sufficient amount of promoter during stirring in a melt. The second section contains a promoter and component which is inert towards oxygen. The promoter is contained in an amount which is sufficient for initiating and/or catalysing the reaction between oxygen and the oxygen-sensitive component during treatment of the granules when stirring in the melt. The promoter may also be present in the first sectioned zone in an amount which is insufficient for initiating and/or catalysing the reaction between oxygen and the oxygen-sensitive component. The first and section sectioned zones are assembled into a side by side configuration. Not one zone surrounds the other in any plane of the granule. The method involves heating granules to a temperature ranging from 40°C to temperature which is at least 5°C lower than temperature at which the granules become liquid.

EFFECT: obtaining granules which can be stored in an oxygen-containing medium such as air, and can undergo thermal treatment in the presence of oxygen since the oxygen-sensitive compound cannot react with oxygen until final mixture in a melt.

67 cl, 7 dwg, 1 tbl